C3-1535 Railway Compression Lock
This is a back-mounted compression lock made of SUS304 stainless steel, developed for railway vehicles and high-vibration equipment applications. It features a tool-driven lock cylinder, a compression locking mechanism, large nut clamping, and an independent two-hole positioning flange combination structure. This design not only secures the door panel but also enhances the lock body’s resistance to rotation and loosening under long-term vibration and frequent operation conditions. Unlike standard rotary locks that rely solely on the installation nut to clamp the door panel, this product incorporates an independent anti-rotation positioning flange. The positioning flange is securely fixed to the door panel through two mounting holes, allowing the rotational torque generated during the locking and unlocking process to be directly transmitted to the door panel by the flange, rather than relying entirely on the friction between the installation nut and the door panel. This structural improvement reduces the risk of rotation, positional displacement, or loosening of the lock body over long-term use. The lock body is made of SUS304 stainless steel, making it suitable for electrical enclosures, equipment boxes, maintenance doors, control cabinets, and other industrial equipment subjected to continuous vibration and impact.
- Hole Size: M22*20mm
- Material: Main Body SUS304
- Protection Level: IP65
- Neutral Salt Spray Test: Up to 3000h
- Compliance Standards: DIN EN / IEC 61373, IEC / EN 60529.
- Usage Scenarios: High-speed train vehicle equipment cabinets, EMU equipment cabinets, subway vehicles, light rail vehicles, urban rail vehicles, railway locomotives, undercarriage equipment boxes, vehicle skirts, roof equipment compartments, HVAC maintenance doors, electrical control cabinets, battery equipment cabinets, braking system equipment boxes, traction system equipment boxes, auxiliary power equipment cabinets, external maintenance covers for the vehicle body, internal technical equipment cabinets, wall panel maintenance openings, ceiling maintenance openings.
Detailed Specifications
| Image | Model | Lock Cylinder Specification | Locking Height and Length | Material | Download |
|---|---|---|---|---|---|
| C3-1535-247-LH-A1 | Custom lock cylinder | Customizable to any size | SUS304/316 optional |
FAQ
Can you send samples?
Yes, we can provide a few free samples for the customer, but we hope that the shipping cost can be covered by you.
Does ForndLock offer custom Compression Lock OEM/ODM?
Yes, we support customization of materials, structures, surface treatments, lock cylinder types, and markings for Compression Locks to meet project requirements.
What is the minimum order quantity?
The general minimum order quantity is 200 PCS, but if stock is sufficient, flexible supply can be provided based on actual demand, with no minimum order quantity restriction.
What is the purpose of red and green markings?
It allows maintenance personnel to directly identify the locking status from the front of the lock. Under normal design, green indicates that the lock is fully closed and compressed, while red indicates that it is open or not fully secured, thereby reducing the risk of missing unlocked panels during inspections.
Can other railway tool lock cylinders be replaced?
Yes. It can be configured with square, triangular, double-tooth, or other railway-specific tool drive forms according to project requirements, to meet the access management needs of different operators, vehicle manufacturers, and maintenance systems.
Why does this lock have two additional mounting holes on the flange?
The two-hole flange is primarily used for mechanical positioning and preventing the rotation of the lock body. The torque generated by the operation of the lock cylinder is transmitted through the flange to the door panel, which can reduce the risk of rotation or loosening of the lock body after prolonged use.
Why is a locking flange needed when there are already mounting nuts?
The installation nut is primarily responsible for axial clamping, while the flange mainly restricts rotation. Separating these two functions can enhance the installation stability of the lock body in environments with vibration and frequent operation.
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