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 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).   

 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 

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.

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.

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.  

 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.)

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.

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.  

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

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. 

DC Frame push-pull electromagnet / Solenoid is a common electromagnetic/solenoid device.

The structure includes a Carbon steel frame, a movable iron core and a copper coil wound on the bobbin. It is simple design with widely application . The working principle is based on electromagnetic induction/ copper coil. When the copper coil is energized, a magnetic field is generated, causing the iron core to be pushed and pulled by the magnetic force. 

AS 0837 DC Solenoid has the following characteristics:

Size: 37*26*20mm
Plunger: φ8mm
Voltage: DC12 V
Stroke: 0-6mm
Force: 1-10N
Power: 4W
Current: 0.27A
Resistance: 56.25Ω
Life: ≥500,000 times
Working Cycle: Continuous Power
1. Precise push-pull action: it can achieve relatively precise linear motion.
2. Strong force: it can generate strong thrust or pull.

Fast response speed: it can respond quickly after the power is turned on.

In practical applications, D frame push-pull electromagnets are widely used in automation equipment, industrial machinery, medical equipment, electronic equipment and other fields. For example, it is used for pushing and grabbing materials in automated production lines, and for switch control in door lock systems.

Feature of D Frame Solenoid

Mini solenoids open D frame S-type with normal supply voltages between DC 3-60 V and force up to 5--200N. The force can be adjustable and increased with limited energized time and with connection to higher power voltage of changing the copper coil built inside. 

Unit Dimension: 28.4 * 20* 17MM / 1.11 * 0.78 * 0.67 Inch. ( LWH ) 

Housing Material: Stamping Carton steel housing with Zinc coating with mounting holes on both side for easy set up the unit into the machine. The material compliance with RoHS requirement and anti-corrosion. 
Plunger Diameter : φ10mm , Carbon Steel with Zinc coating. 
Rated Voltage : DC12V
Stroke:  4.8 mm
Force: 1-4.5N
Power Wattage:  7.2 W
Rate Current:  0.5 A
Resistance: 20 Ω
Life: ≥300,000 times 
Working Cycle: 0.5s On, 2s Off

Design of D Frame Solenoid: 

The D frame solenoids come with a return spring, and are available in various construction types such as open, cylindrical, self-holding latching bistable and holding magnet type. All solenoids are available in mechanical pull L or push S designs and can be customized per special requirement. Common customization are mechanical as well as cable connections and cabling. The frame push-pull solenoid is mainly composed of open frame housing with permeability, copper coil, bobbin, plunger and iron core inside. Due to the simple structure and low cost, it is widely used in automation equipment, such as small household appliances, game and vending machines.

As 4020 DC 12V  Solenoid is  the most cost effective version of linear solenoids. It is being used in many versions in all kind of applications. These is a essentially either PULL or PUSH type for the action. Custom option for the unit dimension, voltage and stroke (linear distance traveled) or new products can be tailor made. These can be either customized to suit individual specifications of Pull/ Push force.

Unit Features as blow 

Product Dimension： 20.5 * 12* 11 mm / 0.84 * 0.47 * 0.43 Inches
plunger：φ 4 mm
Voltage: DC12V
Stroke: 0-5mm
Force: 0.2-2N
Power : 13W
Current: 1.09A
Resistance: 11Ω
Working cycle: 0.5s on, 2s off
Yoke/ Housing Material:  Electrolytic zinc-coated carbon steel sheets *(some are with haxavalent chromium free zinc plating.), smooth surface with RoHS compliance,  Anti-corrosion. 
Plunger :  Fluoroplastic coating (open frame solenoids), Zinc or Nickel plating
lifespan:  DC solenoid shall operate normally with 300,000 cycles after tested in a specified intermittent operation cycles for a required number of times under a specific voltage, load, and stroke requirements.

Please consult with us for more special/ customized design requirements for functions (e.g. push type, double-coil type, mold-coil type) or structures (e.g. terminal type, lead-wire type, connectors, thermal fuses, diodes).