AS 0837 US Micro linear electromagnetic actuator
Micro linear electromagnetic actuators' definition and principle
Miniature linear solenoid actuators are compact electromechanical devices that make it to convert electrical energy into linear (straight-line) mechanical motion. Unlike larger linear solenoids, they are distinguished by their small size (typically a few millimeters to a few centimeters in length/diameter) and low power consumption, making them ideal for applications where space, weight, and energy efficiency are critical.
- Core Definition
Essentially, a micro linear solenoid actuator is a scaled-down version of a linear solenoid optimized for small-scale linear actuation. It consists of three key components:
Stationary Coil: A thin, insulated copper wire wound on a bobbin (usually made of plastic or ceramic) that generates a magnetic field when electricity is passed through it.
Plunger: A ferromagnetic core (e.g., iron, steel) that slides axially (back and forth) within the magnetic field of the coil.
Return mechanism: A small spring (or in some cases a permanent magnet) that returns the plunger to its original position when the coil is de-energized.
Their primary function is to generate short-stroke linear motion (typically 0.5–10 mm) and moderate forces (typically 1–50 N), depending on design and power input.
- Working Principle
The operation of a micro linear solenoid actuator relies on electromagnetic induction and the interaction between a magnetic field and a ferromagnetic material. This process can be broken down into four key steps:
De-energized state: When no current flows through the coil, the plunger is held in the "rest position" by the return spring (or permanent magnet). At this point, there is no magnetic force acting on the plunger, so it remains stationary.
Power On: When direct current (DC) is applied to the coil, it generates a uniform magnetic field around its axis (according to Ampere's law). This magnetic field magnetizes the ferromagnetic plunger, turning it into a temporary magnet.
Magnetic Attraction and Linear Motion: The magnetized plunger is pulled toward the center of the coil (the area of greatest flux density) to minimize the reluctance (resistance to magnetic flux) of the magnetic circuit. This attractive force forces the plunger to slide axially (linearly) outward or inward (depending on the design) to perform the desired motion (e.g., push a valve, close a switch).
Power-off reset: When the current is cut off, the coil magnetic field disappears. The return spring pushes the plunger back to its initial position, ready for the next cycle.
NOTE: Some designs use a "bipolar" coil (reversing the direction of the current) to achieve bidirectional motion, eliminating the need for a spring.
AS 0643 Pull Type Boxing Solenoid DC 24V
How it works
A pull-type solenoid operates based on the electromagnetic force. It consists of a coil of wire wrapped around a bobbin. When current passes through the copper coil, it generates a magnetic field. This field exerts a force on a ferromagnetic plunger (or armature) within the coil. In a pull-type solenoid, the magnetic field pulls the plunger into the coil, producing linear motion. When the current is turned off, a built in return spring or other mechanical mechanism pushes the plunger back to its original position, deactivating the solenoid.
The structure
Solenoid Coil: A wound component that generates the necessary magnetic field when an electric current is applied. The solenoid coil is typically made of copper wire and is wound helically around a cylinder.
Plunger: The movable part of a solenoid, typically made of a ferromagnetic material such as iron or a magnetic alloy. The plunger is designed to be pulled into the coil when the solenoid is powered on.
Return Spring: This component is used to return the plunger to its original position when the current to the coil is interrupted. The spring is usually located at one end of the plunger and is compressed when the plunger is pulled into the coil.
Frame or Housing: Provides mechanical support and protection for the coil and plunger. The frame can be open or closed, depending on the application requirements.
Application
Locking system: Pull solenoids are commonly used in electric locks. The pulling force of the solenoid can be used to unlock or lock the lock, thus achieving remote or automated access control.
Industrial Automation: They are used in various industrial automation systems to perform tasks such as moving mechanical parts, operating valves, and actuating switches. For example, in a production line, a pull solenoid can be used to move a part to a specific position.
Robotics: Pull solenoids can be used to actuate the joints or limbs of robots, providing the linear motion necessary for precise manipulation and locomotion.
Vending machines: In vending machines, pull solenoids can be used to dispense merchandise. For example, when a user purchases an item, the solenoid pulls a mechanism that releases the selected item.
Pinball Machines: They are used to pull the firing lever in pinball machines, providing the force needed to launch the ball.
AS 0537 mini electric door lock 12v dc solenoid
What is an Electromagnetic Solenoid Lock?,
An electromagnetic solenoid lock is a high-security locking device that operates using electromagnetic force. This innovative technology allows for efficient and reliable control of doors in various applications. There are three primary types of electromagnetic solenoid locks, each designed to meet specific security needs:,
A:Power-On Unlocking Type: This type of lock remains secure until the electromagnetic coil is energized. When power is cut or the connection is interrupted, the lock engages, making it ideal for environments where crime prevention is a priority,
B:Power-On Locking Type: This lock engages while the electromagnetic coil is continuously powered and unlocks only when the power is turned off. This feature is essential for emergency exits, ensuring that safety and evacuation are prioritized in case of fire or other emergencies,
C: Power-On Holding Type: This versatile lock can both lock and unlock by applying a pulse voltage in either direction to the electromagnetic coil. It is designed to maintain its locked or unlocked state without continuous power, making it a highly energy-efficient option,
Performance Characteristics： Understanding the performance characteristics of the continuous locking type versus the intermittent rated type of locks is essential for selecting the right solution, -
Continuous Locking Type: These locks are designed to withstand continuous voltage application without exceeding designated temperature limits, ensuring durability and reliability over time, -
Intermittent Rated Type: These locks can maintain safe temperature levels when the rated voltage is applied for short durations, making them suitable for systems with varying power cycles,
Structure of Electromagnetic Door Locks ： Electromagnetic door locks consist of two primary components: the electromagnet and the armature plate. The electromagnet is typically installed on the door frame, while the armature plate is mounted on the door itself. When the electromagnet is energized, it creates a magnetic field that attracts the armature plate, effectively locking the door,
Working Principle： The operation of electromagnetic door locks is based on the interaction between electricity and magnetism. When electric current flows through the electromagnet, it generates a magnetic field that attracts the armature plate, securing the door in position. This mechanism is widely employed in access control systems and can be found in various settings, including office buildings, public facilities, and warehouses,
Applications and Benefits ： Electromagnetic solenoid locks offer enhanced security, ease of use, and energy efficiency. Their ability to integrate into access control systems makes them a preferred choice for both residential and commercial properties, allowing for seamless management of entry and exit points. Whether you are improving security measures for a business or upgrading your home, electromagnetic solenoid locks provide reliable protection and convenience, For more information on selecting the right electromagnetic solenoid lock for your needs, contact us today!
AS 0839 Push Pull Solenoid , Linear Solenoid Ac...
AS 0938 Push Pull solenoids are designed as solenoid coils packaged in low carbon steel housing that acts as an auxiliary magnetic pole. The armature uses a secondary magnetic circuit which increases a typical output force by 20% to 50%. This AS 0839 solenoid delivers a large force for its size with push or pull action.
FEATURES
Designed with standard life cycles of 2 million, and long-life designs that can achieve up to 5 million cycles. Options include pole piece configurations; conical or flat types. The plunger of working stroke is meant for medium strokes (3-8mm).
AS 1040 Micro Push Pull Solenoid
What is Micro Push Pull Solenoid ?
Micro Push Pull Solenoid is basically electromagnet: it is made of a solenoid coil of copper wire with an armature (a slug of metal) iron/plunger in the middle. When the solenoid coil is energized, the plunger is pulled into the center by the solenoid coil of magnet force. This makes the micro push pull solenoid able to pull (from one end) or push (from the other).
This mirco push pull solenoid in particular is very small, with a 40mm long body and a 'captive' armature with a return strong spring. This means that when activated with ~12V DC, the solenoid moves and then the voltage is removed it springs back to the original position, which is quite simply operation. Many lower cost solenoids are only push type or only pull type and may not have a captive armature (it'll fall out!) or don't have a return spring. This one even has nice mounting tabs, its a great all-purpose solenoid.
AS 0730 high force push pull solenoid 12V
AS 0730 high force push pull solenoid 12v
Essentially, a solenoid is an electromagnet: it's made of a copper coil wound on a frame housing, with a free-flowing metal frame type housing in the center of the coil. When electricity is powered on, the plunger is pulled toward the center of the solenoid coil. This allows the solenoid to pull ("pull" from one end) or push ("push" from the other end).
This push pull solenoid is quite nice and has a lot more power for a reasonable size (compared to our small solenoid). It has a 40mm long housing and a fixed frame with a spring (to hold the shaft). This means that the solenoid moves the shaft when 24V is applied, and when there is no pulling force, the return spring returns the shaft to its original position. It is very practical. Many cheap solenoids can only push or pull the shaft and have no armature to hold the shaft (the shaft will fall off the solenoid). Cheap solenoids also have no return spring.
AS 0626 DC Solenoid Actuator Push Pull
The solenoid actuator push pull is mainly composed of open frame housing with permeability, a big coil of copper wirl, bobbin, plunger and iron core. When the solenoid coil is energized, the slug is pulled into the center of the coil. This makes the solenoid able to pull (from one end) or push (from the other)Because of its simple structure and low cost, it is widely used in life automation equipment, such as small household appliances, game and vending machines.
AS 0835 Understanding the Functionality of Sol...
What is DC Linear Solenoid ?
DC linear solenoid ( it is also call linear actuator ) features robust linear movement and are well suited for "heavy duty" applications. This kind of DC linear solenoid design allows high holding force at a comparably low current. Therefore push pull solenoids are ideal actuators for applications for which power consumption and heat dissipation are critical. It is named "Push/Pull" because both shaft ends are available, so the linear solenoid can be used as pushing solenoid or pulling solenoid, depending which shaft end is used for mechanical connection - but because of reluctance working principle the active moving direction when powering the coil is only unidirectional. Applications can be found in medical, laboratory and analytical equipment.
Innovative Applications of Push-Pull Solenoid A...
How Does a Push Pull Solenoid Actuator Work ?
AS 0635 Push Pull Solenoid actuator powered unit is Push-Pull open frame type, with linear motion and plunger spring return design, open solenoid coil form, DC electron magnet. It has been used widely in home appliances, vending machines, a game machine.....
Efficient and durable push-pull solenoids generate a significant amount of force for their comparatively small size, this makes the push pull particularly suited to high-force short-stroke applications.
The compact size of the solenoid optimises the magnetic flux path, alongside a precision coil winding technique which packs the maximum amount of copper wire into the available space, allowing maximum force to be generated.
Push-pull solenoids have 2 shafts relative to the mounting studs, the shaft on the same side as the studs pushes and the shaft on the armature side pulls, so you have both options on the same solenoid. As opposed to other solenoids like tubulars which are independent of each other.
It is steady, durable and energy-saving, and had a long lifespan with more than 300,000 cycle time. In the anti-theft and shockproof design, the lock is better than other kinds of locks. After connecting the wires and when the current is available, the electric lock can control the door’s opening and closing.
Note: Take care of polarity while making the connection without a connector (i.e. Red wire should be connected to the positive and Black wire to the negative.)
AS 0420 DC Linear Solenoid Actuators Open Frame...
What is a DC Linear Solenoid Actuator ?
A DC Linear solenoid actuator is constructed from an moving iron or steel core along with a movable solenoid coil and work by converting an electrical current or signal into mechanical linear motion, by creating a magnetic field. A solenoid actuator pulls or pushes mechanically, with the strength of its range of motion determined by the number of turns its coil contains.
There are different options for the solenoid actuator, including metric tubular pull or push, Open Frame type. There are many applications for linear solenoid actuator devices, including the opening and closing of solenoid, electrical doors, and latches. They are also frequently used as part of the mechanics in robotic limbs.
AS 0835 DC Linear Solenoid Open Frame Push and ...
What is DC Linear Solenoid ?
DC linear solenoid ( it is also call linear actuator ) features robust linear movement and are well suited for "heavy duty" applications. This kind of DC linear solenoid design allows high holding force at a comparably low current. Therefore push pull solenoids are ideal actuators for applications for which power consumption and heat dissipation are critical. It is named "Push/Pull" because both shaft ends are available, so the linear solenoid can be used as pushing solenoid or pulling solenoid, depending which shaft end is used for mechanical connection - but because of reluctance working principle the active moving direction when powering the coil is only unidirectional. Applications can be found in medical, laboratory and analytical equipment.
AS 0829 Mini DC Solenoid Push and Pull Open Fra...
Introduction of DC Mini Solenoid Open Frame Push and Pull Type
Open-Frame Solenoids are available in various designs, as Push and Pull, or just a Push combination type, Features a simple and robust action for the industry and automation equipment.
DC power sources Option ; DC Voltage ; 6 V , 12 V and 24 V, the power is more bigger and the pushing force will be more stronger and the noise will increasingly also.
Long stroke designs for improved performance over greater strokes.
Electric wire fitted 200mm as standard or we can do as per your want.
Optional return springs or the mounted screw holes for selection.
Fixing arrangement, plunger coupling, thrust rod options and lead length can all be customize
AS 1564 DC12V Solenoid Push and Pull: The Ultim...
About AS 1564 Solenoid Push and Pull :
This compact solenoid operates as a miniature electromagnet. It consists of a tightly wound copper coil surrounding a central metal plunger (armature). When energized with 12VDC or 24V DC, the electromagnetic field pulls the plunger into the center of the coil, creating linear motion. Depending on the application, this motion can be used for either pushing or pulling actions.
This particular model features a 64 mm-long body and includes a captive armature with a built-in return spring. When power is applied, the plunger is pulled inward; once the power is removed, the spring reliably returns it to its original position. Unlike many low-cost solenoids—which may be limited to push or pull types and lack either a return spring or captive plunger—this design offers improved reliability and ease of use. Additionally, integrated mounting tabs allow for easy installation.
Key Features:
Compact size: 64mm body length
Captive armature with return spring for automatic reset
Supports both push and pull operation
Operates at up to 12V or 24V DC, drawing approximately 250mA to 2 A
Sturdy mounting tabs for secure installation
Important Notes for Use:
To control this solenoid with a microcontroller (such as an Arduino), a power transistor is required to handle the current draw. A flyback diode must also be used to protect your circuit from voltage spikes generated when the solenoid is de-energized. Ensure you use a reliable power source, as solenoids demand significant current during activation and are not suitable for use with weak power sources like standard 9V batteries.
AS 0420 A Push and Pull Solenoid For Shared Cha...
Part 1 : What is a sharing charging station solenoid ?
sharing charging station solenoid is an electromagnetic device used in shared power banks.
Structurally, it is composed of a single electromagnet, which can be combined into a group of 6 or 12 electromagnets. A single solenoid is mainly composed of a copper coil, an iron core and an armature. The copper coil is wound with an insulated wire and is the key part of generating a magnetic field when powered on; the iron core is generally made of soft magnetic materials (such as silicon steel sheets) to enhance the strength of the magnetic field; the armature will move under the action of the magnetic field.
Part 2 : The working principle of the charging station solenoid ?
When current passes through the copper coil, a magnetic field is generated that magnetizes the iron core, thereby generating a strong electromagnetic suction force. In shared power bank devices, this suction force is mainly used to control the locking and ejection of the power bank. For example, after the power bank is returned, the solenoid is energized, and the suction force generated will lock the power bank firmly in the charging cabinet; and when the user rents the power bank, the system controls the solenoid to cut off the power or change the direction of the current, so that the suction force disappears or decreases, so that the power bank can be ejected smoothly into the machine.
Part 3 : The advantage and disadvantage of charging station solenoid?
3.1: Easy control: The presence, strength and direction of its magnetism can be accurately controlled by turning on and off the current. For example, the charging cabinet controls the current on and off to unlock or lock the power bank, which is simple and accurate to operate.
3.2: Fast response: After power is turned on, it can quickly generate a magnetic field, with a large control torque, and can quickly realize the ejection and locking of the power bank, improving the user experience.
3.3 : Simple structure: It is mainly composed of a coil, an iron core and an armature, with a relatively simple structure, easy to install and maintain, reducing production costs and maintenance difficulties.
3.4: quiet operation: The sound generated during operation is weak and will not cause noise interference to the surrounding. It is suitable for application in various places, such as shopping malls, offices, trading fair....etc.
3.5: Strong carrying capacity: It has strong magnetism and can withstand a certain load, ensuring the stability of the power bank in the locked state and preventing it from accidentally falling off.
The main disadvantages of sharing Charging station Solenoid are:
3.6: Dependence on power supply: It requires an external power supply and cannot work without power supply. Once there is a problem with the power supply of the charging cabinet, the solenoid will not be able to control the power bank normally.
3.7: Low efficiency: Controlling the size of the magnetic force usually consumes a lot of electricity, and its own efficiency is relatively low. Long-term operation will increase certain operating costs.
3.8: High heat generation: When powered on, it will generate a lot of heat. Long-term operation may cause the temperature to be little high, affecting the performance and life. Therefore, heat dissipation measures need to be taken, which increases the complexity and cost of the equipment.
3.9: Risk of wear and tear: After long-term and frequent operation, the armature and other parts of the solenoid will be worn and corroded, and need to be regularly inspected and replaced, otherwise it may fail and affect the normal operation of the power bank.
AS 0946 DC24 V D Frame Push-pull Linear Solenoi...
What is a D Frame Type Solenoid
The D Frame Type solenoid is a device that uses the principle of electromagnetic induction to generate electromagnetism. It is functionally the same as the push-pull solenoid. When the inside copper coil is powered on, it creates the magnetism like a magnet. It is made with box shape steel housing that also called a frame type solenoid. In order to demagnetize the solenoid immediately, just simple turned the power off, it is very simple structure and wildly used in today industrial machine or the equipment.
Unit Features:
Metal Stamping Housing used the carbon steel material with Zinc coating along with mounting holes on both side for easy set up purpose. The carbon material compliance with RoHS requirement and anti-corrosion.
Plunger Diameter : φ 9 mm , Carbon Steel with Zinc coating.
Rated Voltage : DC24 V
Stroke Distance: 5 mm
Force: 400 GF
Power Wattage: 11.5 W
Rate Current: 0.5 A
Electronic Resistance: 50 Ω
Lifespan cycles: ≥300,000 times
Working Cycle: 0.5s On, 2s Off
Unit Dimension: 46 * 23 * 18 mm / 1.81 * 0.90 * 0.63 Inch ( LWH )
Custom Design Solenoid Solution Service :
We are a leading solenoid manufacturers based on your application considerations, modifications for specific design, and the life cycle intended. Through our Enhanced Engineering Support, we can design and manufacturing solenoids according to your satisfaction and specific requirements. Our customization include:
Custom type Solenoid and Dimension.
Custom Voltages and Current
Custom Duty Cycles
Custom Force Curves
Custom Input Connections
Custom Plunger Configurations
For more information, pls contact us through our email: jack@drsolenoid.com today.
AS 0840 DC 24V Push-pull Linear Electromagnetic...
AS 0840 Advantage: It has the advantages of simple structure, low power consumption, using magnetic body as frame housing, copper coil, and unique characteristics of long stroke. It is a linear motion solenoid electromagnet with compact, simple structure, easy installation and connection, as well convenient for maintenance. The D Frame type of solenoid works by pulling in (pulling in) the plunger or pushing out the sliding rod. The core diameter ranges is made from 2mm to 20mm.
Unit Features:
AS 0840 Dimensions- 41 x 15 x 20 mm / 1.61 x 0.59 x 0.79 inch (L*W*H); Voltage: 24V;
Frame Housing Material: Carbon Steel. It is electroplated with Zinc or Nickle coating. It is passed 96 hours salt spray testing and it is anti-corrosion.
Plunger Material: Carbon Steel. It is electroplated with Zinc or Nickle coating. It is passed 96 hours salt spray testing and it is anti-corrosion and compliance with RoHS .
Copper Coils: it is made with pure copper wire. Character: Good conduction and insulation, High temperature resistance.
Voltage source: Power by DC24V
Stroke: 4-10mm ( Adjustable ) Material : Carbon Steel with Zinc coating
Force: 1.5-8N (Adjustable to your requirement)
Power wattage : . 24 W
Current: 1 A
Resistance: 10Ω
Lifespan: ≥200,000 times
Working Cycle: 0.3 s On, 5 s Off
Our team:
Our Product range: electromagnets, solenoid; solenoid valves, solenoid pumps, tubular Solenoid and sucker solenoid and other solenoid valve products meet the requirements of IEC, EN, and UL standards, and some of the models have passed CE and CB certification. Our part processes, quality control, and product assembling are strictly operated according to the ISO 2015 standard system. Our R & D team with more than 17 years of experience in design, manufacturing and production that meet your various requirements Due to the electromagnets are non-standard products, you are welcome to send us your detailed requirement and specification for your own specification design. We will tailor the solenoid you need accordingly.