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Author Archives: Maureen VanDyke

  1. Aerospace Magnetic Switch Applications

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    An aerospace magnetic switch is essential in the industry due to its reliability and safety features. Its non-contact nature makes it ideal for applications where physical contact might lead to wear and tear. This reduces maintenance requirements and improves system longevity. Moreover, this switch is immune to dust, moisture, and vibration, ensuring consistent performance in challenging aerospace environments.

    The following are examples of the most common aerospace magnetic switch applications:

    1. Avionics Systems

    Avionics systems encompass various electronic and electrical components responsible for monitoring, controlling, and managing aircraft functions. The landing is also a critical phase of any flight, and proper gear deployment and retraction are crucial for a safe touchdown. Magnetic sensors detect the position of the components and provide feedback to the pilot and control systems.

    Another avionics component is flaps, which are movable surfaces on an aircraft’s wings that extend or retract during takeoff and landing. The switches can monitor and control the position of the flaps, allowing pilots to configure them for different flight phases.

    2. Flight Control Systems

    Flight control systems are fundamental to an aircraft’s safe and controlled operation. They consist of mechanical, hydraulic, and electronic components that manipulate the plane’s control surfaces. One example is ailerons, or the movable surfaces located on the trailing edge of the wings. Magnetic switches are often integrated into them to ensure synchronous movement for coordinated roll control.

    Modern aircraft also incorporate fly-by-wire (FBW) systems, where electronic signals replace traditional mechanical control linkages between the pilot’s inputs and control surfaces. The sensors provide feedback to flight control computers on control surface positions. They guarantee that control surface movements are accurate and precise.

    3. Emergency Systems

    Emergency systems in aerospace applications require immediate and reliable activation. Magnetic switches are commonly used in these systems like fire suppression, emergency lighting, and parachute deployment. Their non-contact nature also ensures rapid response, minimizing reaction time during critical situations.

    Other types of emergency systems are as follows:

    • Breathing apparatus
    • Escape hatches
    • Evacuation slides
    • Flotation components
    • Fuel shut-off
    • Oxygen system
    • Power generator

    4. Navigation and Communication Equipment

    In aircraft and spacecraft, communication systems facilitate seamless interaction between the crew, air traffic controllers, ground stations, and other vehicles. An aerospace magnetic switch can control various functions, such as selecting transmission channels and activating and deactivating radio frequencies. It can also manage the correspondence between different on-board systems.

    Navigation equipment guides aircraft during its journey, providing accurate positional information and course data. Magnetic switches are often utilized in piloting systems to activate and deactivate routing aids like GPS receivers, radio beacons, and trackers. Moreover, these sensors allow pilots and operators to easily toggle between manual and automated flight modes.

    5. Satellite Systems

    Satellites carry various scientific instruments and payloads designed to perform specific tasks, such as Earth observation, remote sensing, and atmospheric studies. Magnetic switches are often integrated into the payload systems to control the activation and deactivation of these instruments. This ensures precise timing and data collection for scientific research and mission objectives.

    6. Cockpit Controls

    Cockpit controls must be intuitively designed for quick and accurate operation, especially during critical flight phases. Magnetic sensors can be easily integrated into ergonomic control interfaces, providing smooth, rapid actuation for precise adjustments. They also give consistent and immediate input, allowing pilots to modify in real-time.

    Choose MagneLink for Magnetic Switch Products and Solutions

    At MagneLink, we deliver top-quality magnetic switches and provide exceptional customer service to our clients! We take pride in understanding the unique requirements of different applications, allowing us to offer the most suitable solutions for any project. Whether it’s aerospace, automotive, industrial automation, or other specialized fields, we have the expertise to meet your needs.

    Contact us to learn more about our products! You can also request a quote now.

  2. Medical Magnetic Switch Applications

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    In the medical industry, innovation is a constant driving force. One such technology that has been making waves in the field is magnetic switches. These devices are revolutionizing healthcare delivery and enhancing patient outcomes through diverse medical applications.

    In this blog, we review the different medical magnetic switch applications.

    1. Magnetic Resonance Imaging (MRI)

    One of the most well-known uses of magnetic switches is in Magnetic Resonance Imaging (MRI). An MRI machine uses a powerful magnetic field to generate detailed images of the human body’s organs and tissues.

    The role of magnetic switches here is crucial. They help control the magnetic field strength and gradients, enabling precise imaging and ensuring patient safety. The utilization of these switches has made MRI a powerful diagnostic tool, providing doctors with invaluable insights into the human body.

    2. Medical Implants

    Devices like pacemakers, cochlear implants, and insulin pumps rely on magnetic switches. For instance, some pacemakers use a medical magnetic switch to transition between pacing modes, thus adapting to the patient’s activity level. This enhances the functionality of these devices and extends their lifespan, benefitting patients immensely.

    However, the use of magnetic switches in implants is not without challenges. Ensuring that the devices remain unaffected by external magnetic fields is a critical aspect that manufacturers need to address.

    3. Medical Equipment and Devices

    In surgical instruments, magnetic switches can be used to control the device’s movements, providing surgeons with greater precision during operations. Similarly, they can help adjust the bed’s height and angle in hospital beds, enhancing patient comfort.

    4. Drug Delivery Systems

    Drug delivery systems use magnetic switches to control the release of medication, allowing for targeted and timely delivery. This approach has several advantages, including reduced side effects and improved treatment efficacy. While this application is still in its nascent stages, it holds immense promise for the future of medicine.

    5. Laboratory Diagnostics

    Magnetic switches are revolutionizing laboratory diagnostics. Automated analyzers, which play a crucial role in diagnosing diseases, often rely on these switches for operation. By facilitating rapid and accurate testing, magnetic switches are helping to streamline diagnostic processes, leading to quicker disease detection and treatment.

    6. Prosthetics

    Medical magnetic switches have the potential to revolutionize the world of prosthetics. They can control the movement and adjustments of these devices, making them more user-friendly. For example, in prosthetic limbs, magnetic switches can adjust the grip of a hand or control movement in a knee or elbow. This allows for more delicate and precise movements, giving users a greater range of motion and functionality.

    Moreover, magnetic switches can aid in creating a more comfortable fit for the prosthetic device. They can drive mechanisms that adjust the device’s alignment, tension, and grip based on the user’s comfort level, reducing the risk of discomfort or injury. By integrating magnetic switches, manufacturers can ensure their prosthetic devices are functional, comfortable, and adaptable to each individual’s needs.

    Unleash the Potential of Medical Technology With MagneLink

    Experience the transformative power of magnetic switches in healthcare with MagneLink. As a trusted partner in the industry, we offer high-quality, innovative medical magnetic switch solutions designed to unlock the potential of your medical applications.

    Ready to revolutionize your healthcare solutions? Contact us today to discuss your needs! Get a quote and learn more about our products and services at MagneLink.

  3. Industrial Magnetic Switch Applications

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    Magnetic switches offer a reliable and durable solution for detecting and controlling the position of mechanical components, making them essential in various industrial applications. These switches use magnetic fields to create a contact-free, wear-resistant switching mechanism that can withstand harsh operating conditions.

    This blog will explore the different types of industrial magnetic switches, their industrial applications, and their benefits to various sectors.

    Types of Industrial Magnetic Switches

    Industrial magnetic switches are specifically designed to improve efficiency, safety, and performance across a wide range of applications. Here are their common types:

    1. Proximity Switches

    Designed to identify an object’s presence or absence without physical contact, proximity switches utilize magnetic fields to detect a target’s closeness. The switch generates a signal once the target is within a specified range. Thus, they are employed for object detection and position sensing in machine automation, robotics, and material handling applications.

    2. Limit Switches

    The primary function of limit switches is to detect the end-of-travel or limit positions of mechanical components such as linear actuators, slides, and doors. These switches comprise a switch body and a contact actuated by a magnetic field, opening or closing once a specific magnetic field threshold is met. Widely utilized in conveyor systems, assembly lines, and machine automation, limit switches play a critical role in both end-of-travel detection and safety interlocking.

    3. Safety Switches

    Safety switches are often used to ensure the safe operation of industrial equipment by detecting hazardous conditions and initiating protective measures. They often incorporate magnetic technology for contactless and wear-resistant operation, providing reliable performance even in harsh environments. They are used in robotics, material handling, and machine automation to prevent accidents and protect workers.

    Common Functions of an Industrial Magnetic Switch

    Magnetic switches are widely utilized across diverse industrial applications, such as:

    • Position sensing: One of the primary functions of magnetic switches is to accurately detect the position of mechanical components. This ensures precise control and operation, optimizing processes and enhancing overall performance.
    • End-of-travel detection: By identifying a component’s end-of-travel position, magnetic switches serve as a tool in preventing damage, maintaining functionality, and enhancing the safety of equipment and operators.
    • Object detection: Sensing the presence or absence of objects is another critical function of an industrial magnetic switch. This capability enables efficient material handling and automation, streamlining workflows and reducing the likelihood of errors or accidents.
    • Safety interlocking: Magnetic switches play a crucial role in upholding safety standards within industrial environments by identifying dangerous situations and triggering precautionary actions. Their functions encompass overseeing entry points, confirming proper machine positioning before the operation, and verifying the presence of safety barriers.
    • Speed and direction sensing: In some applications, industrial magnetic switches can also measure the speed and direction of moving components. This information can be vital for process control, diagnostics, and maintenance.

    Industrial Magnetic Switch Applications in Various Fields

    Magnetic switches offer many benefits in various industries and serve many practical functions across diverse applications. These include the following:

    • Machine automation:Magnetic switches are essential tools for monitoring and regulating the movement of mechanical components.
    • Conveyor systems: An industrial magnetic switch detects product positions, manages material flow, and maintains proper alignment.
    • Robotics: These components are crucial for precise positioning and controlling movement in robotics.
    • Material handling: In material handling applications, magnetic switches are used to identify the presence of objects, monitor load conditions, and guarantee the safe operation of equipment.
    • Assembly lines: Magnetic switches are key in assembly lines, enabling precise control over component positioning.

    Experience the Power of MagneLink’s Magnetic Switch Solutions

    Unlock your industrial applications’ potential with MagneLink’s diverse, high-quality magnetic switches. We are a trusted partner with years of experience and a commitment to innovation. Thus, you can rely on us for durable and efficient magnetic switch solutions for your business.

    Contact us to discuss your needs, receive a personalized quote, or obtain more information about our products and services!

  4. Benefits of Hall Effect Switches

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    Magnetic switches are dependable technologies that are becoming increasingly popular for their versatility in various applications, including sensing location, velocity, and motion direction. One of these devices is the Hall effect switch, a non-contacting position sensor with a nearly limitless lifespan and resistance to wear.

    Hall effect switches detect the strength and direction of a magnetic field generated by a permanent magnet or electromagnet. Depending on their configuration and intended usage, they can produce a digital (on/off) or analog (continuous) signal.

    This article will discuss how Hall effect switches work and list their benefits.

    How Does a Hall Effect Switch Work?

    A Hall effect switch functions by aligning a magnet in the center of the hall sensor circuitry. The magnetic field shifts when the magnet is turned, and the electronics transform this change into a relative positional output. This principle restricts the stroke of a linear hall, but the effect remains essentially the same. In other words, a Hall effect sensor can identify the position of things once it detects a magnetic field.

    This switch type has a wide range of applications. It is often utilized in various industries, such as agricultural machinery, automation equipment, mobile vehicles, and maritime components. However, its most popular uses are in the automotive industry, particularly in anti-lock braking systems (ABS), fluid level detection, and internal combustion engines to aid with ignition timings.

    Advantages of Using Hall Effect Switches

    Despite being commonly seen to be more costly than conventional linear or rotational sensors, Hall effect switches have several advantages that set them apart from other magnetic sensors. Some of their benefits include the following:

    Multiple Sensor Functions

    Hall effect switches can perform multiple sensor tasks, including position sensing, proximity detecting, directional movement, speed tracking, and current sensing. This feature is greatly beneficial in the electronic and automotive industries.

    Resistance to External Conditions

    Hall effect switches are typically not affected by ambient conditions, such as dust, humidity, and vibrations. Their characteristics also remain constant over time because they display a steady flow of electrical current. Consequently, these switches are exceptionally resistant to wear, preserving their quality and allowing infinite use.

    Versatile Applications

    The versatility of this switch type enables high-speed operations and zero-speed measurements. They can also operate over a broad temperature range without damaging consequences and with high consistency. In addition, these switches are usually constructed from low-carrier-density semiconductors, resulting in significantly lower conductivity.

    Hall Effect switches are commonly found in many electronic devices that need a digital on/off signal. For example, in the automotive industry, they are used in sensors that detect the speed and position of rotating parts such as camshafts and crankshafts. These sensors provide the engine control unit with vital data, allowing for precise fuel injection and ignition timing.

    Contactless Functionality

    This switch type is contactless, so the switches have no forms of contact with other mechanical components. This functionality makes them more durable and sensitive enough to detect motion. Furthermore, there is no wear and tear due to the absence of moving parts. There are also no contact bounces because they employ solid-state switches with hysteresis rather than mechanical connections.

    Accuracy

    Standard Hall effect switches can generate output errors as small as 1%. Although a well-constructed resistive current-sense circuit may exceed this, a 1% error would suffice for applications where these switches are ideally suited. Moreover, they are programmable to actuate the switch at particular magnetic fields.

    MagneLink for Reliable Magnetic Switches

    MagneLink has offered superior magnetic switches and quality service to clients from various sectors for over 30 years! Our commitment and extensive experience enable us to provide customers with innovative, dependable, and economical products that meet or exceed their expectations.

    Unlike other magnetic switch providers, we offer custom-built switches tailored to the customer’s requirements. Get in touch with us today for more information on our quality products!

  5. Why Use a Magnetic On/Off Switch

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    Magnetic on/off switches have become increasingly popular in recent years due to their many benefits. They are widely used in various applications, such as controlling lights, appliances, and security systems. They are also useful in industrial automation systems to control the flow of materials or products.

    With its benefits, investing in this kind of innovation can improve business operations, increase efficiency, and drive growth. This article will discuss why you should use a magnetic on/off switch.

    Reasons for Using Magnetic On/Off Switch

    Here are several reasons for using a magnetic on/off switch:

    Safety

    A magnetic on/off switch can promote safety in certain applications. For instance, it requires a separate magnetic actuator to activate the switch, preventing accidental equipment start-up. It can be particularly useful in industrial or manufacturing settings where machines may be dangerous if operated without proper training or supervision.

    Durability

    These switches are durable since they have no mechanical parts. As a result, fewer moving parts can wear out or break over time. This can result in a longer lifespan and lesser maintenance and replacement costs. Additionally, the magnetic switch mechanism is sealed inside the switch assembly. Thus, it prevents dust or other foreign objects from getting inside and causing damage to the switch itself.

    Convenience

    These switches are easy to use because they can be operated with a simple on/off motion and do not require much force to activate. Moreover, magnetic switches typically have a neat design with few components, making them easy to operate even for people with no technical background.

    Energy-Efficient

    A magnetic on/off switch doesn’t require much energy to operate. Instead, it uses a magnetic field to activate the switch, consuming very low power. This feature can be particularly useful in battery-operated devices and other applications where power conservation is important.

    Outdoor Applications

    Magnetic on/off switches are suitable for outdoor environments because they are able to operate reliably in a variety of environments: hot, cold, wet, ice, or snow.. In addition, the magnetic field that activates the switch will continue to do its job in a wide range of operating environments.. Therefore, magnetic switches can continue to function properly with whatever Mother Nature throws their way.

    A magnetic on/off switch can be particularly useful in industrial or manufacturing settings where equipment is exposed to different operating environments. Additionally, the sealed and protected design of the switch assembly will also protect internal parts from potential causes for malfunction.

    Upgrade to MagneLink’s Magnetic On/Off Switch!

    If you are looking for a provider of magnetic switches that are safe, durable, easy to use, and suitable for a wide range of environments, look no further than MagneLink!

    MagneLink is a leading provider of reliable, innovative, and affordable solutions for various applications. With over 30 years of experience, we have established a reputation for delivering high-quality products and exceptional customer service. So whether you want to improve your system’s efficiency or upgrade your technology, we have the right solution for you!

    Contact us now and learn more about our services!

  6. Magnetic Switch Applications

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    A reliable and efficient control system is crucial in industrial equipment and machinery. Specifically, magnetic switches play a vital role in ensuring the proper functioning of various critical applications, from elevators to medical equipment. These devices provide fast and precise control over equipment operation, improving the safety and functionality of different industry-specific gears and tools.

    This post will dive into the applications and benefits of magnetic switches.

    Industries and Applications Utilizing Magnetic Switches

    The use of magnetic switches extends across various industries, including the following:

    Automotive Industry

    Magnetic switches are essential in regulating many automobile operations, such as starter motors, power windows, and locks. In addition, these switches are built to be highly reliable, ensuring that critical automobile operations run smoothly and effectively. As a result, they improve automobiles’ overall efficiency and longevity, offering end users a safe and pleasurable driving experience.

    HVAC Systems

    Heating, ventilation, and air conditioning systems are necessary for maintaining a comfortable indoor atmosphere. HVAC systems may be constructed with higher dependability, longevity, and efficiency by employing magnetic switches. The switches regulate the operation of fans, pumps, and compressors, guaranteeing that they run without complications or frequent malfunctions.

    Elevators

    Magnetic switches are utilized to identify an elevator’s precise position and speed of movement. To guarantee a safe and smooth operation, the elevator control system analyzes the signals from the switch and processes programmed commands based on the data gathered. This influences the operation of the elevator, including door closing and opening and engaging safety measures.

    Construction

    Magnetic switches help operate cranes, hoists, and other heavy gear. These switches regulate the movement of heavy equipment, ensure that they run only as intended, and aid in preventing accidents.

    Medical Equipment

    Medical devices like MRI machines, ventilators, and patient monitoring systems can greatly benefit from utilizing magnetic switches. By incorporating magnetic switches, medical devices can be engineered to have heightened dependability, longevity, and efficiency, resulting in better patient treatment outcomes.

    Benefits of Magnetic Switches

    Magnetic switches are widely used in various applications due to their unique advantages, such as the following:

    • Durable and resistant to harsh environments
    • Easy to install and use with minimal maintenance
    • Versatile, suitable for a wide range of applications
    • Cost-effective with a good return on investment
    • Energy-efficient, consuming low power
    • Long service life with reliable performance

    These advantages make magnetic switches an attractive solution for many industries and applications requiring accurate and consistent electrical circuit activation or deactivation.

    MagneLink for Dependable Magnetic Switches

    At MagneLink, we are dedicated to providing top-quality magnetic switches and exceptional customer service! With over 30 years of experience and a commitment to excellence and innovation, we have become a trusted provider for numerous clients across different industries.

    We understand the unique requirements of different applications. Thus, we can offer the most effective and suitable solutions for any project. We supply custom-built magnetic switches tailored to your requirements, ensuring that your equipment operates at peak performance!

    Contact us today to learn more about our products and how we can help you upgrade your control system!

  7. High Power Transistor Switch Applications

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    A transistor is a semiconductor device that is the basic building block for all digital components. Its primary purpose is to amplify and regulate a specific voltage level, particularly low-level ranges. Various transistor types have emerged over the years, each with its own functions and applications. One of these is the power transistor — a better-suited type for devices operating at high voltage levels.

    This article will look at the basics of using a power transistor as a switch and its applications.

    Using a Power Transistor as a Switch

    A transistor is widely used for switching operations, such as opening or closing a direct current (DC) circuit. In most cases, transistor switches are required to switch low DC ON/OFF when it is cut off or saturated. They are also distinct from Triac switches, which are frequently used for power control in alternating current (AC) systems with higher power switching requirements.

    A power transistor is a three-terminal electronic device made of semiconductor materials. It is specifically intended to regulate high current-voltage ratings. Moreover, when voltage or current is applied to one pair of terminals, this device controls the other pairs. This is particularly useful for high-power electronic devices like lamps, solenoids, relays, and motors.

    Here are other advantages of a power transistor:

    • High electric current density
    • High voltage gain
    • Large bandwidth gain
    • Low forward voltage

    MagneLink integrates power transistors into some of our magnetic switch models.  These types of switches are ideal when switching a heavier duty, inductive-type load in a DC voltage circuit.  In this way, we create a more rugged switch that can endure the current spikes that often occur when switching a relay or a starter coil in a motor.

    Common Applications of High-Power Transistor Switches

    Power transistor switches are ideal for high-power, current, or voltage applications. Consequently, they are utilized in the following:

    Switched-Mode Power Supplies (SMPS)

    A switched-mode power supply (SMPS) is an electronic power source that includes a switching regulator for efficient energy conversion. It uses fast-switching components such as power transistors, which internally switch between ON (saturated) and OFF (cut-off) states, resulting in lower energy dissipation.

    Relays

    Relays are electromechanical devices that utilize an electromagnet to move a pair of contacts from open to close. Although numerous designs and types of relay circuits exist, many small electronic installations use power transistors as their primary switching devices. This is because of their ability to quickly control the relay coil from a wide range of input sources.

    DC to AC Converters

    Power transistors are efficient switching devices for converting power from DC to DC, DC to AC, or AC to DC. They are more dependable than standard electronic vibrators and are not as intricate or bulky as motor generators.

    Power Amplifiers

    The need for a power transistor switch as an amplifier arises when we want to increase or intensify the input signal. It works by taking in weak signals through the base junction and raising their strength. Then, the amplified signals are released via the collector.

    Inverters

    An inverter is a power electronic device or circuitry that transforms DC to AC. It is frequently used to operate appliances, including electric lights, microwaves, power tools, and computers.

    Inverter circuits started using power transistor switches that can be turned off via control signals as their preferred switching components. This is due to the availability of these transistors in higher voltage and current ratings.

    Power Control Circuits

    A transistor acts as a variable resistor in a circuit, regulating its collector-emitter current to keep the output voltage constant. It also controls current flow through one channel by modifying the intensity of a much smaller current that flows through a second channel.

    MagneLink for High-Quality Transistor Switches

    For more than 25 years, MagneLink has been offering the best and most cost-effective magnetic switches on the market. We also create products for manufacturers on various industrial applications, such as automated factory equipment, elevators, compactors, semiconductor fabrication devices, trucks, and more.

    We do not restrict our customers from purchasing what is in stock; instead, we offer them custom-built switches tailored to their needs! We also price our products and services accordingly, ensuring that you receive the best solution at the most competitive rate.

    Contact us today to learn more about our solutions and products!

  8. Triac Switch Applications

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    “Triac” stands for triode for alternating current. These are electronic components used to control the flow of electricity in circuits and are composed of three electrodes, usually housed within a metal case.

    The purpose of the Triac switch is to regulate the current passing through it by controlling how much voltage goes through each electrode. This makes it an invaluable component for many electrical applications, from lighting dimmers to motor speed controllers.

    Understanding the different applications of the Triac switch is essential for anyone who wants to work with electronics and electrical circuits. This article will go through the applications of Triac switches and their benefits over different types of switches.

    Different Applications of the Triac Switch

    Triacs are electronic components that control the flow of electricity in circuits. These devices are often used for electrical applications that require low to medium AC switching requirements.

    Small and Medium Appliances

    Triacs are used in home appliances, such as washing machines, dishwashers, and other large appliances. These devices often require precise voltage regulation, and the Triac switch is perfect for that purpose.

    Industrial and Manufacturing Applications

    Triacs can help control temperatures or regulate power supplies in industrial applications, making them essential components for manufacturing.

    Computers and Electronics

    The Triac switch is found in computers and electronic equipment to control various electronic systems.

    Advantages of the Triac Switch

    The Triac switch has a few advantages over other types of switches. One of the biggest advantages is that it can handle large amounts of power without generating any heat, unlike mechanical switches, which can become hot due to the current passing through them. Other advantages include the following:

    Precise Control

    The Triac switch can easily be managed by a microcontroller, allowing precise control of the voltage and current passing through it. This makes it ideal for applications like motor speed controllers or light dimmers because it can respond quickly and accurately.

    Less Vulnerable to Malfunctions

    Triac switches are very reliable since there are no moving parts that could break down over time. This makes it an excellent choice for commercial and industrial applications.

    Versatile

    Triac switches can handle high voltages and large currents, making them beneficial in various applications. They are frequently used to control AC flow in devices with heavier inductive loads where current spikes may be an issue.

    Triac Switches by MagneLink

    The Triac switch is an essential component in many devices and applications. Manufacturers can use it to control current flow in delicate systems — like lights and motors — and regulate power supplies or temperatures in industrial applications. Moreover, its versatility makes it a valuable tool for electronic engineers and professionals in related industries.

    MagneLink offers the highest quality and most cost-effective magnetic switches on the market. We provide custom-built switches that manufacturers can use on various electrical devices, including elevators, compactors, automated factory equipment, semiconductor fabrication equipment, trucks, and more.

    Contact us to learn more about our solutions and products! You may also send an inquiry to sales@magnelinkinc.com.

  9. When To Use a Magnetic Reed Switch

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    Magnetic reed switches control the flow of electricity in a circuit without requiring an external power source. They are engineered to function through proximity to a magnetic field, so the actuator (the source of the magnetic energy) is simply a magnet paired with a sensor or a switch.

    Typically, a reed switch consists of a pair of electrical contacts sited on a magnetic metal reed and enclosed in a protective glass casing. These flexible switches can open and close circuits using AC and DC voltage.

    Magnetic reed switches are preferred in many industries because of their wide range of benefits. This article will discuss magnetic reed switches’ common applications and advantages.

    Common Applications of Magnetic Reed Switch

    Because it is versatile, a magnetic reed switch can be applied to various industries, from home appliances to automotive. Particularly, this magnetic switch can be found in the following battery-operated devices:

    Laptops and Mobile Phones

    Usually used in clamshell designs and cases, magnetic reed switches allow the screen to turn off when the lid is closed.

    Tamper-Proofing Systems

    Magnetic reed switches are ideal to use with security systems. They function as proximity sensors that trigger an alarm when the magnet moves away from the switch.

    Automobile Doors

    As long as a proximity sensor is present, magnetic reed switches can power car doors and the lights connected to refrigerator doors.

    Auto Shut-Off Devices

    Magnetic reed switches are installed in fluid level sensors and thermal cut-offs in dishwashers, washing machines, and showers.

    Measuring Devices

    Anemometers used to measure wind speed are operated with magnetic reed switches. They can also power speed sensor devices on bicycle wheels, car gears, and treadmills.

    Safety Features in Devices

    Magnetic reed switches are a safety feature in devices like food processors and power tools. They help prevent these devices from completely turning on when a lid, guard, or other component is not correctly placed.

    Environments With Explosive Gases or Chemicals

    Because magnetic reed switches are encased in protective glasses, any sparking from the switching action stays within the casing, preventing accidents in environments with explosive gasses and chemicals.

    Benefits of Magnetic Reed Switch

    A permanent magnet often powers a magnetic field in a reed switch. However, a current-carrying wire or coil may be used as an alternative. These switches are more cost-efficient than other electrics and consume less power, resulting in low mechanical wear and a longer operational lifespan.

    Further, the switches don’t need to be physically accessed to control the electricity in the circuit, reducing the potential for electrical interference. Mechanical reed switches are also durable, reliable, compact, lightweight, and highly customizable in terms of precision and sensibility.

    Finally, magnetic reed switches are sustainable and safe to use in hazardous environments because they are enclosed hermetically in glass cases. Hence, they are less vulnerable to corrosion.

    Reliable Magnetic Reed Switches at Magnelink

    For over 30 years, Magnelink has provided outstanding service and top-notch magnetic switches to clients from diverse industries! Our dedication and extensive experience allows us to supply dependable, innovative, and affordable products to our consumers, such as magnetic reed switches in a broad spectrum of housings:

    • MLA Housing
    • MLE Housing
    • MLF Housing
    • MLG Housing
    • MLH Housing
    • MLL Housing
    • MLM Housing
    • MLP Housing
    • MLQ Housing
    • MLT Housing
    • MLU Housing

    At Magnelink, we value customer collaboration to deliver various requirements and needs. Contact us to partner with Magnelink! You may also call us at 800-638-0801.

  10. A Guide to Limit Switches

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    MagneLink designs and manufactures magnetic switches for customers in a broad range of industries. We specialize

    Click to ExpandA-Guide-to-Limit-Switches

    in the development of custom-designed magnetic switches engineered to meet particular application requirements. Our extensive selection of switches includes high-performance magnetic limit switches in various designs and configurations.

    What Is a Traditional Limit Switch?

    A limit switch is an automatic sensor assembly that requires direct physical contact to detect the position of an object or material. It is commonly used to monitor the presence/absence, proximity, and/or movement of items or materials within a system. Based on what it detects, an actuator opens or closes the electrical contacts, which automatically stops or starts the flow of electricity to connected equipment. This capability makes limit switches ideal for use in applications where strict limits must be observed.

    What Is a Non-Contact Magnetic Limit Switch?

    Non-contact magnetic switches are similar to traditional limit switches, but with the added advantage of operating without requiring physical contact between the switch and actuator.  This added feature makes a non-contact magnetic switch a better performer in harsh or dirty environments, as well as making it more difficult to override.  A non-contact magnetic limit switch also has a longer lifespan thereby reducing potential down-time for equipment repair.

    How Does a Limit Switch Work?

    The original purpose of limit switches was to monitor the movement of objects or materials within a system and stop their progression at a pre-set limit without the need for direct human intervention. They perform this function by having an actuator that breaks an electrical connection when an object or material comes into contact with it. This stops the operation of the equipment and, consequently, the movement of the load.

    In other applications, a limit switch may make an electrical connection when an object or material comes into contact with it. This activates a connected device or system, enabling it to perform the necessary function for the situation.

    Components of a Limit Switch

    A standard limit switch consists of an actuator with an operating head, switch body, and electrical terminals.

    • The operating head transmits the linear or rotary force from contact with the triggering object to the actuator.
    • The actuator opens or closes the switch in response to the application or removal of force.
    • The switch body contains the switch contact mechanism that opens or closes the connections between electrical terminals.
    • The electrical terminals connect the switch to the electrical circuit it is controlling.

    Industrial applications often require highly durable and reliable switches that can withstand heavy use without compromising accuracy. Limit switches can be customized to meet the needs of particular equipment and operations. By adjusting the size, mounting, stroke rate, electrical rating, and operational force of the switch, you can ensure dependable, safe equipment operation even in harsh industrial conditions.

    Types of Limit Switches

    There are many types of limit switches, each of which offers unique characteristics that make it suitable for different uses and environments. They can be divided into four categories based on the operating head design and actuation method:

    • Non-contact magnetic limit switch: Non-contact magnetic limit switches are highly responsive switches that are controlled using a magnet actuator on a moving component of the equipment (i.e. door, gate, piston). The actuator triggers the switch when in close proximity to it. The switch can then electrically trigger alarms, shutoffs, etc. Non-contact magnetic limit switches offer a quick response time, making them an excellent choice for applications in door switches, elevators, light switches, lifts, conveyors, pressure switches, and temperature switches.
    • Whisker limit switch: Whisker limit switches have a long flexible spring arm (i.e., whisker) that bends when an actuating force is applied and springs back to its normal position when it is removed. They are often used in conveyor and assembly line applications, where they can monitor the flow and placement of materials and sound an alarm if items are out of place.
    • Roller limit switch: Roller limit switches use a roller on a stationary shaft to measure the flow of material or the number of items passing down a line or conveyor. They measure item quantity, volume, or flow based on the number of roller revolutions.
    • Lever limit switch: Lever limit switches are highly responsive switches that are controlled using a lever mounted on a rotating shaft. The lever allows motion to continue to a pre-set limit. Once the lever rotates around the shaft to the limit point, the switch opens the circuit, triggering alarms or shutoffs. Lever limit switches provide a very quick response time, which makes them ideal for use in door-open indicators, elevators, lifts, conveyors, pressure switches, and temperature switches.
    • Plunger limit switch: Plunger switches are equipped with a plunger that requires less physical force to activate than other limit switches. The plunger is connected to a spring and electrical contact such that it opens or closes the circuit when it is depressed. They are ideal for use in filling and conveyor applications where quick response time is a must.

    Limit switches can also have a design that combines characteristics of two of the above four types.

    Applications & Uses for Limit Switches

    Limit switches are incorporated into a variety of flow control, conveyance, and sensing applications. They are durable, versatile, and accurate, with a range of designs, mounting systems, and sizes to meet even the most stringent specifications. Some of the most common applications for limit switches include:

    • Conveyors: Limit switches are used to monitor and control the location, speed, and quantity of material and objects in conveyor applications.
    • Assembly lines: Assembly lines use limit switches to monitor and control the location, position, quantity, and speed of components on the assembly line.
    • Magnetic control circuits: Limit switches are used in electric motors to control start, stop, acceleration, and deceleration operations.
    • Emergency systems: Limit switches are used to notify operators of equipment malfunctions, overloading, temperature fluctuations, pressure extremes, open enclosures, and other conditions that can affect the safety of your operation.
    • Appliance lights: Limit switches are incorporated into ovens, refrigerators, microwaves, and other household devices that activate lights when you open the door.
    • Automotive systems: Limit switches are used to turn on interior vehicle lights when the door is opened. They are also incorporated into automotive manufacturing and assembly equipment.
    • Counting operations: Limit switches are used to count the number of products on conveyors for production, assembly, packaging, and other industrial and manufacturing operations.
    • Fill stations: For operations that use buckets, baskets, boxes, and other containers, limit switches are used to automatically detect when a container is full for faster and more accurate filling operations.

    Magnetic Switches From MagneLink Inc.

    At MagneLink, we pride ourselves on providing superior quality limit switches to customers in virtually every industry. Whether you need a simple limit switch for refrigerator doors or complex safety shutoff limit switches for heavy industrial operations, our seasoned experts can help you find the perfect solution. Our limit switches are available in a wide selection of configurations, including Reed switches, Hall Effect switches, triac and transistor switches, coded switches, and interlock switches. To learn more about our product solutions, contact us today.