Screw production is a meticulous process that demands precision and durability. At the heart of this process lies the high quality screw second punch, a critical tool used during the cold heading or forming stage to shape and define the screw's head accurately. As an expert in tooling and mold solutions, Haiyan Hengxinyu Mould Co., Ltd. provides advanced second punches tailored for high-speed and high-precision applications.
This article explores the importance of a high quality screw second punch, product parameters, and its applications, ensuring manufacturers achieve consistent performance and productivity.
A high quality screw second punch is a precision tool used in screw production machinery to form the screw head after the first punch. It shapes the drive recess, such as Phillips, Torx, or hexagon, and defines the final head geometry. The second punch's material and processing precision directly impact the durability and appearance of the finished screw.
1. Superior Strength and Durability:
Made from high-grade raw materials (e.g., M2, SKH9, M42), second punches withstand impact and high friction during screw forming.
2. Enhanced Precision for Screw Head Definition:
Accurate forming ensures screw compatibility across applications—whether in automotive, electronics, or construction.
3. Longer Tool Life and Reduced Downtime:
Quality punches help manufacturers maintain consistent production with fewer replacements, minimizing downtime.
Here are the product parameters we offer at Haiyan Hengxinyu Mould Co., Ltd. to ensure durability and performance for all common screw types:
| Parameter | Specification |
|---|---|
| Material | M2, SKH9, M42, HSS |
| Coating | TiN, TiAlN, AlCrN |
| Hardness | HRC 62-66 |
| Surface Finish | Polished, mirror-finished |
| Punch Shape | Phillips, Pozidriv, Torx, Tri-Wing, etc. |
| Tolerance | ±0.003 mm |
| Size Range | φ3.0mm – φ15.0mm |
| Application | Screw head forming in cold heading machines |
1. Precision Forming:
Second punches with close tolerances ensure that every screw head produced matches required standards.
2. Efficiency in Mass Production:
High resistance to wear and heat supports continuous use in automatic multi-station machinery.
3. Smooth Finish for Fasteners:
Polished surfaces reduce friction and prevent sticking, resulting in clean, flawless screw head shapes.
Advanced Manufacturing Techniques: CNC machining and precision grinding.
Custom Punch Design: Tailored dimensions for non-standard screws.
Steel Quality Assurance: Use of premium-grade materials guarantees reliable strength.
Coating Technology: Titanium nitride and other coatings extend functional life.
1. What factors determine the lifespan of a high quality screw second punch?
The punch material, coating type, hardness, and the accuracy of cold heading machine setup directly impact its lifespan. Regular maintenance also plays a key role in maximizing tool life.
2. Are high quality screw second punches suitable for stainless steel screw production?
Yes, especially when using materials like M42 with coatings such as TiAlN or AlCrN, which offer enhanced wear resistance during the processing of hard metals like stainless steel.
3. Can I order custom-sized second punches for special screws?
Absolutely. At Haiyan Hengxinyu Mould Co., Ltd., we offer customization services based on your specific dimensions, drawings, or application needs.
If you are looking to improve screw production efficiency and quality, our high quality screw second punch solutions ensure reliable and high-performance results. For more information or a quotation, contact Haiyan Hengxinyu Mould Co., Ltd. today.