Precision machining of connector pins (electrical contact pins)

Precision machining of connector pins (Electrical contact pins)｜High-difficulty machining technology – deep hole processing, long parts, and slit crimp
We machine connector pins for cables and electronic connectors, meeting requirements for small diameters, deep holes, and slit crimps with high precision according to Japanese standards, manufactured at our Vietnam factory.
This product is a connector pin used in cable harnesses and connectors.
The pins have small diameters and deep holes along their length, making them prone to risks such as deformation, cracking or breakage, or tool vibration, thus requiring sophisticated machining techniques and strict quality management.
Furthermore, for products with slits and crimping at the pin ends, we can provide a complete process package – from CNC turning, pin head processing, quality inspection, to mass production.
Key Features
- Machining long pins, deep holes with diameters from φ1.5–φ3mm with high precision.
- Suitable for highly conductive materials such as copper and phosphor bronze used for electrical connectors.
- Capable of slit cutting and crimping – meeting cable crimping requirements.
- Features a process for removing chips and burrs in horizontal and vertical holes, ensuring internal surface cleanliness.
- High reliability: products have been continuously delivered to the same customer for over 10 years.
- Supports gold plating and quality control at each stage to ensure stable output.
Technical Specifications
- Machining dimensions: φ1.5–φ3mm, supporting long parts and deep holes.
- Materials: copper, phosphor bronze, and other highly conductive materials.
- Slit & crimp machining: can be performed according to design requirements.
- Chip – burr removal: thorough removal of chips in horizontal and vertical holes.
- Reliability: products have been used stably for over 10 years.
- Surface treatment: gold plating, anti-oxidation, ensuring stable transmission.
Applications & Usage Areas
- Connector pins for cable harnesses
- Contact pins and crimp pins in precision equipment
- Connector components for automotive electrical systems
- Contact pins in medical devices and measuring equipment
Applicable Industries
- Automotive electrical component manufacturers
- Medical devices and analytical instruments
- Telecommunications and electronics equipment
- Precision equipment assembly companies
- Specialized connector component suppliers
High-precision connector machining services
With our capability to machine long parts, deep holes, and complex crimp slits, coupled with a Japanese-standard quality management system, we provide stable, reliable, and cost-optimized solutions for manufacturers of connectors, electronic devices, automotive, and medical equipment.
👉 Contact us now if you are looking for a machining partner for precision connector pins φ1.5–φ3mm, gold-plated, mass-produced in Vietnam – to Japanese standards.