Pin Usage Precautions: 1. The compression should generally be two-thirds of the total stroke. Insufficient compression results in inadequate forward force, leading to unstable resistance; excessive pressure can cause tube mouth damage, leading to the pin getting stuck. Also, be cautious during assembly to avoid damaging the tube mouth, which may cause the pin to get stuck.

Contact orientation for pin applications.

3. Battery contact tabs or FPC gold fingers paired with Pin needles must be free of dirt and oxidation.

No residual sealing fluid allowed.

The contact surface of the Pin mating must be free from dirt and other contaminants.

No other dirt or residue is permitted.

Avoid touching the plastic partition during the assembly of the Pin.

4. Avoid contact with the plastic barrier during assembly and use of the Pin and pipe mouth.

Avoid touching the plastic partition during the assembly of the Pin.

Pin spring needles may seem like a simple component, but without proper quality control and refined manufacturing processes, they are prone to issues like power loss and pin jamming, or insufficient durability (short lifespan). The process is intricate and detailed, involving turning, electroplating, and assembly, with each step potentially leading to significant pitfalls.

For turning operations, it's essential to use Japanese heart automatic lathes to ensure precision within +/-0.01mm. However, many factories opt for cutting machines, which cannot guarantee the required accuracy. Additionally, the surface finish of turning operations, particularly the internal surface finish, is extremely crucial. The vast majority of factories lack surface roughness testing equipment, leaving no oversight for this vital parameter.

In electroplating processes, the thickness of the coating has a significant impact on costs, TOPlThe gold plating on ink is 16u", whereas most other brands are between 1-2u", which is a significant difference.