Precision Punch Pins & High-Hardness Tooling Components: Engineered for High-Speed Performance

Why Choose Senlan Precision for Your Tooling Needs?

Overcoming the Limits of Material Fatigue

In high-volume metal stamping, a single broken punch can halt an entire production line. At Senlan Precision, we manufacture Precision Punch Pins and Mold Components that prioritize Fracture Toughness and Wear Resistance.

By integrating premium Metallurgy with specialized Heat Treatment, we help Tier-1 suppliers reduce maintenance intervals and achieve lower costs per part.

Solving the Real-World Challenges of Tooling Buyers

1. Preventing Premature Chipping & Snapping

• The Issue: Poor toughness in high-hardness steels (HSS) leads to sudden tool failure.

• Our Solution: We utilize Vacuum Heat Treatment and multiple Tempering cycles to ensure a homogeneous microstructure. Our Tungsten Carbide and ASP series components offer the perfect balance between extreme hardness and shock resistance.

2. Micron-Level Concentricity for High-Speed Stamping

• The Issue: Eccentricity in punch pins causes uneven wear and internal stress.

• Our Solution: Utilizing Japanese High-Precision Centerless Grinding and Jig Grinding, we guarantee Concentricity and Cylindricity within ±0.002mm. This ensures smooth movement in the guide bush and extends tool life by up to 40%.

3. Advanced Surface Engineering for Reduced Friction

• The Issue: Heat buildup leading to galling and adhesive wear.

• Our Solution: We offer specialized PVD coatings, including TiCN, AlTiN, and DLC. Combined with a Mirror Finish (Ra 0.1), our surface treatments drastically reduce friction coefficient and improve part stripping.

Technical Specifications & Manufacturing Capabilities

Core Application & Industry Expertise

Our precision components are the backbone of high-performance dies in:

• Automotive Stamping: Connector terminals, lead frames, and structural brackets.

• Electronics & Telecommunications: Micro-pins for high-density connectors.

• Medical Tooling: Surgical instrument components and high-precision pill pressing.

• Aerospace Fasteners: High-toughness forming punches for exotic alloys.

The Value We Bring to Global Procurement

As your strategic OEM partner, Senlan Precision fulfills the 5 pillars of high-end supply chains:

1. DFM Technical Support: We offer advice on R-angle optimization and material selection based on your specific punching pressure.

2. Comprehensive Documentation: Every batch is shipped with a Material Certificate and a detailed Dimension Inspection Report (CMM/Micrometer).

3. 100% Interchangeability: Fully compatible with Dayton, Lane, Misumi, and Fibro standards to ensure seamless tool replacement.

4. Process Stability: ISO 9001 certified workflow ensures that every re-order matches the original specification perfectly.

5. Fast Turnaround: Rapid prototyping for custom profiles with global shipping via DHL/FedEx/UPS.

FAQ – Engineering Insights

Q: How do you ensure the bonding strength of the PVD coating?

A: Our coating process includes a rigorous ultrasonic cleaning and ion-bombardment pre-treatment to ensure the coating will not flake even under high thermal stress.

Q: Can you manufacture ultra-thin punch pins with high aspect ratios?

A: Yes. We specialize in micro-punch pins with diameters as small as 0.2mm, maintaining strict straightness and stiffness through specialized grinding techniques.

Q: Do you offer cryogenic treatment for tool steels?

A: Yes. Upon request, we perform Sub-Zero Treatment to transform retained austenite into martensite, improving dimensional stability and wear resistance for the most demanding applications.

Request a Technical Quote & Failure Analysis

Don't let subpar tooling increase your downtime. Send your drawings (STEP, DWG, or PDF) to Senlan Precision today. Our engineers will review your specs and provide a professional manufacturing proposal within 24 hours.

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