1. Definition & Issues (The "Why")

In the Cold Heading process, the Cut-off stage is the foundational step. Industry buyers often encounter critical hurdles:

• Deformed Cut Surfaces: Standard shearing often distorts the wire end, leading to eccentric heads or material volume inconsistencies in the final bolt.

• Low Tooling Longevity: Extreme cycle speeds cause rapid chipping of cut-off knives, resulting in frequent and costly machine downtime.

• Burrs and Galling: Rough cuts complicate subsequent forming stages and compromise the aesthetic and functional quality of the fastener.

Vina CNC eliminates these risks with our Unique Cut-off Technology, utilizing ultra-fine grain Carbide knives and precision clamping systems to ensure perfectly square and flat cut ends.

2. Technical Classification (The "How")

• Carbide Heading Dies: Main dies manufactured from premium imported Tungsten Carbide, engineered for high-pressure stability.

• Unique Cut-off Tooling: Proprietary knife and quill designs that eliminate wire-end "drag" and distortion.

• High-Speed Punches: Precision punches and trimming dies designed for high-fatigue resistance in 24/7 production.

• Surface Integrity: Mirror-polished die cavities to facilitate effortless part ejection and extend tool life by 200%.

3. Technical Advantages (The "Proof")

• Precision: Maintaining volume and length tolerances of the cut blank at ±0.01mm.

• Material Hardness: Carbide inserts rated at HRA 88-91 for multi-million cycle durability.

• Metrology: 100% verification using Laser measurement systems and 3D CMM verification.

4. Contact Information

• Company: Vina CNC Professional Services

• Hotline: +84 904609889

• Email: vinacnc.us@gmail.com

• Address: Bac Ninh, Vietnam.