Professional Custom Mold Making & Die Manufacturing for Sheet Metal Stamping and Plastic Injection Molding
Zhejiang Zhengna Technology is a leading custom mold and die manufacturer in China, specializing in precision tooling solutions for sheet metal stamping and plastic injection molding. With ISO certification and advanced manufacturing capabilities, we provide end-to-end mold and die services from design to production.
We design and manufacture precision stamping dies for sheet metal components, including progressive dies, compound dies, transfer tools, and form tools. Our expertise covers complex geometries and high-volume production requirements.
Our plastic injection mold manufacturing services include hot runner systems, cold runner molds, multi-cavity molds, and family molds for various plastic materials and applications.
Advanced CNC machining and precision tooling for custom mold and die manufacturing
Our comprehensive manufacturing capabilities ensure precision and quality in every custom mold and die we produce:
| Capability Category | Equipment & Technology | Specifications | Applications |
|---|---|---|---|
| CNC Machining | CNC Milling Machines, CNC Lathes, CNC Machining Centers | ±0.005mm tolerance, Up to 5-axis machining | Mold bases, Core/cavity machining, Electrode manufacturing |
| EDM (Electrical Discharge Machining) | Wire EDM, Sinker EDM, Hole Drilling EDM | ±0.002mm precision, Surface finish Ra 0.2μm | Complex geometries, Hardened steel machining, Fine details |
| Grinding & Finishing | Surface Grinders, Cylindrical Grinders, Polishing Equipment | Flatness within 0.001mm, Surface finish to mirror polish | Mold surface finishing, Slideways, Guide pillars |
| Design & Engineering | CAD/CAM Software (SolidWorks, AutoCAD, UG NX) | 3D modeling, Mold flow analysis, DFM optimization | Mold design, Cooling system design, Ejection system design |
| Quality Control | CMM, Optical Comparators, Hardness Testers | Measurement accuracy ±0.001mm, Full dimensional inspection | First article inspection, Process validation, Final QC |
| Heat Treatment | Vacuum Heat Treatment, Nitriding, Tempering | HRC 48-62 hardness, Uniform heat distribution | Mold core hardening, Wear resistance enhancement |
We specialize in various types of molds and dies for different manufacturing requirements:
| Mold/Die Type | Best For | Production Volume | Lead Time | Key Features |
|---|---|---|---|---|
| Progressive Dies | High-volume sheet metal parts with multiple operations | 100,000+ pieces | 6-8 weeks | Multiple stations, Automated feeding, High efficiency |
| Compound Dies | Medium-volume parts requiring blanking and forming | 10,000-100,000 pieces | 4-6 weeks | Single station, Multiple operations, Cost-effective |
| Transfer Dies | Large or complex parts requiring multiple operations | 50,000+ pieces | 7-9 weeks | Part transfer between stations, Complex geometries |
| Injection Molds | Plastic components of all sizes and complexities | 10,000+ pieces | 8-12 weeks | Hot/cold runner systems, Multi-cavity, High precision |
| Form Tools | Specialized forming operations (bending, curling, etc.) | 5,000-50,000 pieces | 3-5 weeks | Custom shapes, Specialized forming, Quick turnaround |
| Pierce Tools | Precision hole punching and cutting operations | 10,000+ pieces | 3-4 weeks | Sharp cutting edges, Long tool life, High accuracy |
Our engineering team uses advanced CAD software to create precise digital models, perform mold flow analysis, and optimize designs for manufacturability.
We select appropriate mold steels (P20, H13, S7, etc.) based on application requirements, production volume, and material compatibility.
Precision machining of mold components using 3-5 axis CNC machines to achieve tight tolerances and complex geometries.
Electrical discharge machining for intricate details, followed by grinding, polishing, and surface treatment for optimal finish.
Careful assembly of all components, followed by trial runs and adjustments to ensure perfect performance.
Comprehensive inspection using CMM and other measuring equipment to verify all dimensions and specifications.
We work with various mold steel grades to meet different application requirements:
| Steel Grade | Hardness (HRC) | Applications | Advantages | Typical Uses |
|---|---|---|---|---|
| P20 | 28-32 | General purpose plastic molds | Good machinability, Pre-hardened | Consumer products, Automotive interiors |
| H13 | 48-52 | Hot work tooling, Die casting | Excellent heat resistance, Good toughness | Aluminum die casting, Hot forging dies |
| S7 | 54-58 | Shock-resistant tooling | High impact strength, Good wear resistance | Punching dies, Forming tools |
| D2 | 58-62 | Cold work tooling | Excellent wear resistance, High hardness | Blanking dies, Shearing tools |
| 420 Stainless | 48-52 | Corrosion resistant molds | Good corrosion resistance, Polishable | Medical devices, Optical components |
| NAK80 | 37-43 | High precision plastic molds | Excellent mirror polish, Pre-hardened | Lens molds, Transparent parts |
Get answers to common questions about our custom mold and die manufacturing services.
We manufacture a comprehensive range of custom molds and dies including: Stamping Dies - progressive dies, compound dies, transfer tools, form tools, pierce tools; Injection Molds - hot runner systems, cold runner molds, multi-cavity molds, family molds; Special Tooling - fixtures, jigs, special machines; Die Components - punches, dies, inserts, guides. We work with various materials including P20, H13, S7, D2, and stainless steels.
Lead times vary based on complexity: Simple dies - 3-4 weeks; Standard injection molds - 6-8 weeks; Complex progressive dies - 8-12 weeks; Multi-cavity hot runner molds - 10-14 weeks. Factors affecting lead time include design complexity, material availability, and required precision. We offer expedited services for urgent projects - contact us with your specific requirements for an accurate timeline.
We accept multiple file formats: 3D CAD files - STEP, IGES, Parasolid, SAT; Native CAD files - SolidWorks, AutoCAD, UG NX, CATIA, Pro/E; 2D drawings - PDF, DXF, DWG; Other formats - STL for 3D printing, JPEG/PNG for reference. Our engineering team can also work from sketches, samples, or verbal descriptions. We provide Design for Manufacturability (DFM) feedback to optimize your design.
MOQ depends on tooling type: Standard molds/dies - typically 1 set (tooling cost + minimum production order); Complex tooling - may require commitment to specific production volumes; Prototype tooling - available for low-volume testing; Production tooling - customized based on projected annual usage. We work with both small startups and large manufacturers - contact us to discuss your specific needs.
We are ISO 9001:2000 certified and maintain strict quality control standards. Our quality system includes: Material certification - traceability for all mold steels; Process control - documented procedures for each manufacturing step; Inspection equipment - CMM, optical comparators, hardness testers; Documentation - complete inspection reports, material certificates, and test records. We comply with international standards for precision tooling.
Yes, we handle all volumes: Prototype tooling - low-cost molds for design validation and testing; Bridge tooling - interim tooling for market testing; Production tooling - high-volume molds for mass production; Maintenance & repair - tool maintenance and refurbishment services. We can scale from prototype quantities to millions of parts, with appropriate tooling strategies for each stage.
We serve multiple industries: Automotive - interior/exterior components, engine parts; Electronics - enclosures, connectors, heat sinks; Medical - device components, surgical instruments; Consumer Products - appliances, tools, household items; Industrial Equipment - machinery components, brackets, housings; Aerospace - precision components, brackets. Our tooling meets industry-specific standards and requirements.
Yes, we offer comprehensive maintenance services: Preventive maintenance - regular inspection and servicing; Corrective repair - fixing damaged or worn components; Component replacement - manufacturing new cores, cavities, or inserts; Tool refurbishment - complete overhaul and upgrading; Spare parts - manufacturing and stocking critical components. We provide service contracts and emergency repair support.
Our DFM process includes: Design review - analyzing part design for moldability; Material selection - recommending appropriate materials; Wall thickness optimization - ensuring uniform thickness; Draft angle analysis - ensuring proper part ejection; Undercut evaluation - identifying potential issues; Gate location optimization - for best filling and appearance; Cooling system design - for optimal cycle times. We provide detailed DFM reports with recommendations.
We ensure precision through: Advanced equipment - 5-axis CNC, precision EDM, high-accuracy grinding; Skilled technicians - experienced mold makers with 10+ years experience; Quality control - 100% dimensional inspection using CMM; Process control - documented procedures for each operation; Temperature control - climate-controlled manufacturing area; Tool calibration - regular calibration of all measuring equipment. We typically achieve tolerances of ±0.005mm or better.
As a leading custom mold and die manufacturer in Zhejiang, China, we combine advanced manufacturing technology with decades of tooling expertise to deliver precision tooling solutions for global customers.
Email: [email protected]
Phone/WhatsApp: +86-13958138997
Location: Zhejiang Zhengna Technology Co., Ltd., Zhejiang, China
Capabilities: Custom Mold Making, Die Manufacturing, Injection Molds, Stamping Dies, Precision Tooling, ISO 9001 Certified
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