Ningbo Fenghua Bolong Machinery Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of fine blanking dies in China. Please feel free to buy durable fine blanking 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 |
V-ring geometry, clearance optimization, forming simulation |
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Manufacturing |
Wire EDM, CNC sinker EDM, profile grinding, precision measurement |
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Heat Treatment |
Vacuum hardening, tempering |
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Surface Treatment |
PVD coatings, polishing, anti-galling treatments |
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Maintenance |
Full reworking and refurbishment capability |
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Integration |
Direct validation on our own blanking lines - no external testing required |
Performance Highlights
Complete in-house design and manufacturing – Die design, manufacturing, heat treatment, and surface coating are executed under one roof - enabling rapid engineering changes and consistent quality control.
Precision clearance control for edge quality – Wire EDM and precision grinding ensure punch-die clearance is held to 0.5–1% of material thickness - the key to achieving 100% sheared bright surfaces.
Carbide and tool steel expertise – We select and process carbide grades and tool steels optimized for fine blanking applications - balancing wear resistance, toughness, and edge retention.
Tailored heat treatment and surface engineering – Processes are customized for each die application, ensuring optimal hardness, wear resistance, and anti-galling performance.
Validation on our own blanking lines – All dies are validated on our own fine blanking production lines before release - ensuring edge quality and dimensional accuracy meet specifications.
Full maintenance support – Die reworking, repair, and refurbishment are performed in-house, reducing downtime and extending die life.
IATF 16949-certified facility – Quality systems aligned with automotive industry requirements.
Applications
Automotive Safety Component Tooling
Dies for brake backplates, clutch plates, and seat belt components - with smooth edges and tight flatness for safety-critical assemblies.
Precision Gear and Mechanism Tooling
Dies for gears, precision mechanisms, and industrial components - producing near-net shapes with consistent edge quality and dimensional accuracy.
Vertical Integration Advantage
We design, manufacture, and maintain fine blanking dies in-house - ensuring consistent edge quality, fast response to design changes, and direct feedback from our own blanking lines into die improvements.
Contact Us for Your New Project
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