Electromagnetic Lock Solenoid
Unlike a generic off-the-shelf solenoid, this lock actuator is built to fit access-control and security lock hardware, where only a miniature body and low current will do. A small coil around a tubular stator pulls a spring-loaded plunger to release or engage a lockbolt when energized, and the plunger returns automatically when power is cut.
Description
Products Description
Unlike a generic off-the-shelf solenoid, this lock actuator is built to fit access-control and security lock hardware, where only a miniature body and low current will do. A small coil around a tubular stator pulls a spring-loaded plunger to release or engage a lockbolt when energized, and the plunger returns automatically when power is cut. The series is built in a miniature form factor as small as an 8 mm diameter and 25 mm length, runs on DC 3-24 V at a working current up to 500 mA, delivers an unlocking force of 5-30 N and acts within 0.1 s. Because it draws little current and resets on power-off, it is intended for battery-operated or low-voltage lock hardware where a heavy industrial solenoid would not fit.
Once the lock shell geometry is fixed, what buyers weigh is not raw magnetic power but two practical capabilities: structural customization that keeps the 8 mm barrel inside the customer's lock shell, and batch consistency across long production runs. Once the lock geometry is set, the same winding and plunger assembly repeats through regular batches, keeping unlocking force and current draw stable, so spares and repeat batches drop into the same lock shell without rework.
Specifications
|
Parameter |
Specification |
|
Product Type |
Electromagnetic lock / access lockbolt solenoid |
|
Rated Voltage |
DC 3-24 V |
|
Max Working Current |
<= 500 mA |
|
Unlocking Force |
5-30 N |
|
Unlocking Response |
<= 0.1 s |
|
Min Envelope |
Diameter 8 mm; length 25 mm |
|
Coil / Core |
Enameled copper coil; tubular steel plunger |
|
Reset Function |
Automatic reset after power-off; anti-misoperation reset |
|
Custom Options |
Voltage, plunger travel, lead wire and connector per lock design |
Applications
Intelligent and electronic door locks.
The miniature barrel fits inside a mortise lock shell while the 0.1 s release keeps the user unlock response immediate.
Access-control systems and cabinet locks.
Low current draw and automatic power-off reset suit RFID, keypad and battery-operated readers that must hold state safely without continuous power.
Safe locks and medical equipment locks.
The anti-misoperation reset means the bolt engages reliably if power is interrupted, preventing an unintended unlocked state.
Customization
Miniature barrel size and plunger travel per the customer's lock shell; coil voltage within the DC 3-24 V range; lead wire and connector matched to the lock PCB; energized-lock or de-energized-lock logic to the security requirement. OEM and ODM are supported, with a sample approved before batch production.
Packaging & Transportation
Standard export packaging. Every unit is 100% inspected before packing, and third-party inspection is accepted. Payment terms are 50% deposit in advance with the balance paid before shipment, in RMB (CNY) or USD; custom orders also require a development and mold fee before production begins.
FAQ
Q1. Can you supply replacement or spare lock solenoids, and at what volume?
A: 1,000 units. We reproduce the actuator to your drawing, and spares are interchangeable with repeat batches, so a replacement order slots in without re-engineering; the MOQ is 1,000 units and reorders run faster.
Q2. Can it run on a battery-powered lock?
A: Yes. The series operates on DC 3-24 V at up to 500 mA and resets automatically on power-off, which suits battery-operated and access-control lock hardware.
Q3. How does the lock solenoid hold up when the coil stays energized for long holds?
A: Life is still rated by operating cycles, typically about 1 million cycles, and the coil temperature rise is controlled within design limits for sustained duty. Standard and custom lead time is about 1 month, and repeat orders are faster.
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