Ningbo Fenghua Bolong Machinery Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of cold heading dies in China. Please feel free to buy durable cold heading dies made in China here from our factory. All customized products are with high quality and competitive price.
Core Capabilities
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Capability |
Details |
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Design |
Full 3D modeling, forming simulation, material flow analysis |
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Manufacturing |
Wire EDM, CNC sinker EDM, surface grinders, coordinate measuring machines |
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Heat Treatment |
Vacuum hardening, tempering, cryogenic treatment |
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Surface Treatment |
PVD coatings, plasma nitriding, lubrication coatings |
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Maintenance |
Full reworking, repair, and refurbishment capabilities |
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Integration |
Direct validation on our own production lines - no external machine rental required |
Performance Highlights
Design-to-production in one workflow
Die design and manufacturing are executed under one roof. Engineering changes are implemented without supplier coordination delays - shortening development cycles and reducing communication risks.
Rigorous material control
We select and verify tool steels and carbide grades for each application, matching material properties to forming conditions to ensure consistent die life.
Customized heat treatment and surface engineering
Heat treatment parameters and surface coatings are tailored to each die application - improving wear resistance, hardness, and anti-galling performance based on specific forming conditions.
Validation on our own production lines
All dies are validated on our own cold heading production lines before release. This eliminates the need for external machine rental and ensures performance data reflects actual operating conditions.
Full maintenance support
Die reworking, repair, and refurbishment are performed in-house, reducing downtime and extending die life across multiple production cycles.
IATF 16949-certified facility
Quality systems aligned with automotive industry requirements.
Applications
Automotive Fastener Tooling
Dies for high-strength bolts, nuts, and screws - designed for multi-station forming with optimized wear resistance and dimensional stability.
Special-Shaped Component Tooling
Custom dies for non-standard pin geometries and complex profiles - developed through forming simulation and validated on our own production lines.
Vertical Integration Advantage
We do not outsource die design, manufacturing, heat treatment, or repair. This means consistent quality control across every stage, faster turnaround on modifications, and direct feedback from our own production lines into die design improvements.
Contact Us for Your New Project
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