How Do I Take Off A Mailbox Lock?

A mailbox lock is a type of cam lock, named after its application, mainly used for centralized mailbox groups. Its technical requirements emphasize the need to minimize the mutual opening rate as much as possible to meet the security requirements in dense environments.

The lock achieves locking function through the mechanical structure of the lock body, lock cylinder, and lock cam. The lock body is usually made of metal material, and the lock cam completes opening and closing operations by rotation or pushing.

There are two styles of mailbox lock structures: one is the wafer tumbler type and the other is the pin type. The wafer tumbler type structure is simple and easy to use and is a commonly used design method by manufacturers. The pin-type mailbox lock adopts a combination structure of five to seven rows of copper pin arrangements, which is more complex in structure and can achieve a mutual opening rate of one-thousandth to one-ten-thousandth.

The commonly used sizes include a lock diameter of 19mm and effective lengths of 16mm, 20mm, 25mm, and 30mm, respectively.

 

Basic meaning

A mailbox lock refers to a lock whose internal structure controls the rotation of the lockcam. Generally speaking, this type of rotating cam lock has a simple structure and is easy to process. It is often used on important objects such as mailbox locks, filing cabinets, toolboxes, etc. The mailbox lock is a cam lock, which is also a switch cabinet door lock commonly used on electrical cabinet doors.

Specification:

There are four commonly used size specifications:

1. D19x L16 refers to a lock diameter of 19mm and an effective length of 16 mm.

2. D19 x L20 refers to a lock diameter of 19mm and an effective length of 20 mm.

3. D19 x L25 refers to a lock diameter of 19mm and an effective length of 25 mm.

4. D19 x L30 refers to a lock diameter of 19mm and an effective length of 30 mm.

 

Surface treatment / Plating

1. Electroplating bright chromium, neutral salt spray test can reach more than 48 hours

2. Electroplated nickel, neutral salt spray test can reach more than 12-24 hours

3. Electroplated zinc, neutral salt spray test can reach more than 12-24 hours

4. Electrophoretic or painted black, neutral salt spray test can reach more than 72 hours

 

 

How to disassemble & assemble

1. Disassemble the old lock:

Use a Phillips screwdriver to remove the fixing screws at the end of the lock.

Remove the lock cam and gasket, use a wrench to remove the fixing nut, and then take out the old lock.

2. Install a new lock:

Insert the new cam lock into the installation hole and fit it with accessories such as washers and snap rings.

Screw in the nut and tighten it, being careful not to tighten it too tightly, which may cause difficulty in rotating the lock.

Install the locking cam and gasket, align them in the direction, and screw them in to fix.

3 Testing and Adjustment:

Insert the key to test whether the rotation is smooth and confirm that the lock cam extends and retracts normally.

If the lock rusts or rotates slowly, a small amount of lubricating oil can be added for maintenance.

 

For more questions about mailbox cam locks, please feel free to ask us.