Custom Die & Mold Components Manufacturer
Sundi MFG manufactures precision die and mold components based on your drawings, samples, or application requirements.
We support punches, die inserts, guide components, forming parts, wear parts, and custom stamping tool components for demanding production environments.
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Custom punches, die inserts, guide parts, and mold components from drawings.
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Precision machining for stamping dies, molds, and industrial tooling.
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Tool steel, HSS, powder steel, and carbide materials available.
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Finishing, coating, and heat treatment support for longer service life.
- Quote within 8 hours
- 7-15 Days Lead Time
- STEP / DXF / IGES Accepted
- Strictly Confidential (NDA Supported)
Common Die & Mold Component Problems We Help Solve
Small tooling issues can quickly lead to burrs, chipped edges, poor part quality, and unexpected downtime.
We help improve die performance through proper material selection, precision machining, surface finishing, and coating support.
Premature Chipping & Breakage
Punches, die inserts, or forming edges fail too early, causing burrs, scrap parts, and unplanned downtime.
Common causes: wrong material selection, poor heat treatment, EDM stress, sharp edge weakness, or insufficient surface finishing.
- material matching, controlled machining, edge preparation, polishing, and coating support for better wear resistance.
Poor Fit & Misalignment
Small dimensional errors in punches, guide parts, inserts, or plates can cause poor assembly, side loading, and unstable die performance.
Common causes: poor tolerance control, runout, perpendicularity errors, or unmatched clearance between working parts.
- tight tolerance machining, accurate matching, and drawing-based inspection before delivery.
Galling & Material Pick-Up
Sticky materials can build up on punch and die surfaces, increasing friction, burrs, surface marks, and tool wear.
Common causes: rough surface finish, unsuitable coating, poor polishing, or material mismatch.
- surface polishing, coating selection, and finish control to reduce friction and improve tool life.
Burrs & Unstable Part Quality
Unstable cutting clearance or worn tooling can create heavy burrs, edge rollover, and inconsistent stamped parts.
Common causes: inaccurate punch-to-die clearance, worn die buttons, poor insert fit, or unstable die support.
- precision clearance control, custom punch and die matching, and replacement components made to your drawings.
Custom Die & Mold Components We Manufacture
We manufacture custom punches, dies, guide components, plates, inserts, and stamping tool components based on your drawings.
From carbide punches to forming inserts and precision mold parts, we help customers replace worn tooling, reduce downtime, and keep production stable.
- Strictly Confidential (NDA Supported)
Punches & Dies
Precision punches, die buttons, and die inserts for blanking, piercing, trimming, and forming applications in stamping dies.
Punches, die buttons, die inserts, carbide punches, piercing punches, forming dies
Guide, Spring & Fastening Components
A complete range of guide components, springs, and fastening parts designed for accurate alignment, stable operation, and dependable die assembly performance.
Guide posts, guide bushings, ball cages, springs, retainers, fastening parts
Stripper & Ejection Components
Stripper, ejector, and return components for controlled material release, smooth part removal, and stable die operation.
Stripper plates, ejector pins, return pins, knockout pins, pressure pads
Die Plates & Support Components
Die plates, backing plates, retainer plates, and support components for stable die structure and accurate component positioning.
Die plates, backing plates, retainer plates, support plates, spacer blocks
Inserts & Forming Components
Custom inserts and forming components for bending, drawing, shaping, and special profile stamping applications.
Forming inserts, mold inserts, bending inserts, drawing dies, custom inserts
Wear & Precision Custom Components
Wear-resistant and custom precision components made to drawing for demanding die, mold, and industrial tooling applications.
Wear plates, carbide wear parts, custom mold components, precision machined parts
Tool Materials, Heat Treatment & Coating Options
The right material, hardness, and surface treatment directly affect punch life, edge stability, wear resistance, and stamped part quality.
Based on your drawing, strip material, thickness, production speed, and expected tool life, we help select suitable carbide, tool steel, HSS, powder steel, and coating solutions for your die and mold components.
- Strictly Confidential (NDA Supported)
| Material / Treatment Type | Available Options |
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| Tungsten Carbide Materials |
FUJILLOY, EVERLOY, Sumitomo, GESAC, Ceratizit, and equivalent carbide grades for high-wear punch and die applications. Specific grades: F10, F20, TFS06, VD12, EF10, KD20, MC20. |
| Tool Steel & HSS Materials | SKD11, SKH51, ASP23, ASP60, DC53, D2, M2, and custom powder metallurgy steel options for different cutting, forming, and wear conditions. |
| Heat Treatment & Hardness Control | Vacuum heat treatment, stress relief, cryogenic treatment, and hardness control based on working load, edge strength, and wear requirements. |
| Coating & Surface Treatment Options | DLC, TiCN, TiN, CrN, hard chrome, nitriding, polishing, and custom anti-galling coatings to reduce friction, material pick-up, and premature wear. |
| Custom Material Selection | Selected based on your drawing, strip material, thickness, stamping speed, required tool life, and current wear or failure problems. |
Manufacturing Capabilities for Custom Die & Mold Components
We use Wire EDM, EDM sinking, optical profile grinding, CNC grinding, and precision machining to manufacture custom die and mold components from your drawings.
These processes help us control profiles, holes, sharp corners, cavities, clearances, and surface quality for stamping and forming applications.
Wire EDM
For complex profiles, narrow slots, sharp corners, and high-precision punch and die shapes.
Precision Grinding & Precision Finishing
For tight tolerances, stable dimensions, smooth surfaces, and better edge quality.
Die-sinking EDM
For cavities, shaped profiles, internal features, and hard-to-machine details in die components.
CNC Machining
Precision machining for die plates, mold blocks, inserts, holes, pockets, and reference surfaces before final finishing.
Our Equipment List
Our equipment includes Wire EDM, EDM sinking, CNC grinding, optical profile grinding, machining centers, and inspection instruments.
This helps us control profiles, cavities, holes, clearances, and surface finish for different die and mold component applications.
Precision Inspection for Die & Mold Component Quality
Before shipment, each custom die and mold component is inspected according to your drawing, tolerance requirements, and key functional features.
We check critical dimensions, profiles, holes, cutting edges, surface finish, and fit-related areas to help ensure stable assembly and reliable tooling performance.
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Drawing-based dimensional inspection for punches, inserts, plates, and custom components.
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Profile, radius, slot, hole position, and cavity feature checks by suitable inspection methods.
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Cutting edge, clearance-related surfaces, and fit areas checked for stable assembly.
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Concentricity, perpendicularity, and runout checks for pilot punches, guide parts, and precision pins.
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Surface finish, edge condition, and visible defect inspection under magnification when required.
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Hardness, coating, or special inspection reports can be arranged based on project requirements.
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Inspection reports can be provided based on your project requirements.
Why We Provide Engineer-Reviewed Quotes
We do not rely on automated algorithms for custom tooling. Every submitted drawing is meticulously reviewed by our engineering team to assess machining feasibility, verify material selection, and identify potential tolerance risks. This ensures you receive a highly accurate price, a realistic lead time, and a manufacturing plan tailored for your punch and die projects.
Our Ordering Process
We are a direct-to-factory manufacturer, not a brokered quote platform. Every component is engineered, machined, and inspected in-house at Sundi. This ensures complete control over technical precision, production lead times, and data security from your initial drawing to final delivery.
Send RFQ
Submit your 2D/3D CAD models and technical specifications via our secure online form or direct email.
Review & Quote
Our technical team evaluates your drawings for manufacturability and provides a detailed, data-driven quotation within 12 hours.
Confirm Order
Finalize technical parameters, confirm tolerances, and lock in the production schedule prior to contract sign-off.
Production
CAM programming is executed, and production begins across our specialized CNC, EDM, or stamping lines.
Quality Inspection
In-process dimensional checks and a comprehensive final inspection ensure all parts meet specified tolerances before leaving the floor.
Packaging & Shipping
Components are meticulously packed using dedicated protective materials to prevent transit damage and shipped globally.
Case Presentation
FAQs
What materials do you use for die and mold components?
We commonly work with tungsten carbide, tool steel, HSS, powder metallurgy steel, and other wear-resistant materials. Material selection depends on the drawing, strip material, thickness, stamping speed, and expected tool life.
Can you manufacture die and mold components from drawings?
Yes. We manufacture custom punches, dies, inserts, guide parts, plates, and precision mold components based on customer drawings, samples, or application requirements. STEP, DXF, IGES, PDF, and 2D drawings are accepted.
What tolerances can you achieve?
Tolerance depends on the component size, material, geometry, and processing method. For precision punch and die components, we review the drawing first and confirm the achievable tolerance before production.
What is the typical lead time for custom die and mold components?
Lead time usually depends on material availability, component complexity, heat treatment, coating, and quantity. Simple components can be faster, while complex custom parts may need more production time. We will confirm the lead time after reviewing your drawings.
How can I extend the lifespan of punch and die components?
Tool life can be improved through proper material selection, heat treatment, edge preparation, polishing, coating, and correct punch-to-die clearance. If you share your current wear problem, we can help suggest a more suitable solution.
What types of die and mold components do you manufacture?
We manufacture punches, die buttons, die inserts, guide components, springs and fastening parts, stripper and ejection components, die plates, support parts, forming inserts, wear parts, and custom precision components.
Can you provide coating or surface treatment?
Yes. Depending on the working condition, we can support polishing, DLC, TiCN, TiN, CrN, hard chrome, nitriding, and other surface treatment options to reduce friction, galling, and premature wear.
Can you provide inspection reports?
Yes. Inspection reports can be provided based on your drawing and project requirements. We can check key dimensions, profiles, holes, surface finish, and fit-related features before shipment.