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Custom Punch & Die Components Made from Your Drawings
Sundi MFG manufactures custom punches, die inserts, and stamping tool components based on your drawings.
We support piercing, blanking, trimming, forming, and progressive die applications with stable machining quality, suitable materials, and surface treatments for longer tool life.
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Custom punch and die components made from your drawings.
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Tool steel, HSS, powder steel, and carbide options for different working conditions.
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Tight clearance control to help reduce burrs, chipping, and edge rollover.
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Polishing and coating support for better wear resistance and longer tool life.
- Quote within 8 hours
- 7-15 Days Lead Time
- STEP / DXF / IGES Accepted
- Strictly Confidential (NDA Supported)
Common Punch & Die Problems We Help Solve
In stamping and forming production, small tooling problems can quickly lead to burrs, chipped edges, poor part quality, and unexpected downtime.
We help customers improve tool performance through proper material selection, precision machining, surface finishing, and coating support.
01
Premature Chipping & Breakage
- Using suboptimal tool steel or carbide grades, unrelieved Wire-EDM residual stress, and lacking proper deep cryogenic treatments to stabilize microstructure.
02
Poor Fit & Misalignment
- Suppliers failing to hold strict micron-level tolerances, resulting in excessive concentricity runout and perpendicularity deviations between punches and dies.
03
Galling & Material Pick-up
- Substandard surface roughness (Ra) creates excessive friction. Additionally, failing to pre-polish the substrate before PVD treatments causes poor adhesion, leading to premature coating delamination.
04
Complex Profile Inaccuracy & Uneven Clearance
- Inaccurate indexing between the punch shank and profile, and thermal distortion during inferior wire EDM or profile grinding, destroying tight contour tolerances.
Custom Punch & Die Components We Manufacture
We manufacture custom punches, dies, and stamping tool components based on your drawings.
From carbide punches to HSS tool steel punches, forming dies, and shaped profiles, we help customers replace worn tooling, reduce downtime, and keep stamping production stable.
- Strictly Confidential (NDA Supported)
Tungsten Carbide Punches & Dies
Carbide punches and die components for high-wear stamping, abrasive materials, and long production runs.
Carbide punch, Carbide die button, Carbide die insert
HSS & Tool Steel Punches and Dies
HSS and tool steel punches for blanking, piercing, trimming, and general stamping applications.
HSS punch, SKH51 punch, Coated punch
Deep Drawing & Forming Punches and Dies
Drawing die, Forming die, Deep drawing punch
Custom Profile & Shaped Punches and Dies
Spline punch, Torx punch, Profile punch
Punch & Die Applications for Precision Stamping
We manufacture custom punches, die inserts, and forming components for different stamping applications.
From connector terminals to lead frames and deep-drawn parts, our tooling helps improve cutting quality, reduce burrs, and keep production stable.
Connector Terminal Stamping
Semiconductor Lead Frame Stamping
Deep Drawing & Enclosure Forming
Tool Materials & Coating Options
Choosing the right material and coating is important for punch life, edge stability, and stamping quality.
We select carbide, tool steel, HSS, or coated solutions based on your drawing, strip material, thickness, stamping speed, and expected tool life.
- Strictly Confidential (NDA Supported)
| Material / Coating Type | Available Options |
|---|---|
| Tungsten Carbide Materials | FUJILLOY, EVERLOY, Sumitomo, GESAC, and Ceratizit. (Specific Grades: F10, F20, TFS06, VD12, EF10, KD20, MC20) |
| Tool Steel Materials | SKD11, SKH51, ASP23, and custom powdered tool steel options. |
| Coating Options | DLC, Hard Chrome, TiCN, and custom anti-galling coatings based on SPM. |
| Custom Selection | Based on your drawing, strip thickness, required tool life, and stamping conditions. |
Punch & Die Manufacturing Capabilities
We use Wire EDM, EDM sinking, optical profile grinding, CNC grinding, and precision machining to manufacture custom punch and die components based on your drawings.
These processes help us control profiles, holes, sharp corners, cavities, clearances, and surface quality for different stamping applications.
Wire EDM
Achieving ultra-precise mating clearances for your custom punch and die sets. Perfect for complex geometries and tight-tolerance carbide machining.
Precision Grinding
Delivering flawless surface finishes and razor-sharp cutting edges on every custom punch. Ensures zero-burr shearing performance.
Die-sinking EDM
High-precision spark erosion for intricate die cavities and block profiles. Ensuring absolute concentricity for your complete punch and die assemblies.
Our Equipment List
Our equipment includes machines from Seibu, Sodick, MAKINO, OKAMOTO, AMADA, Haas, Hurco, and Beijing Jingdiao, helping us control profiles, sharp corners, cavities, holes, clearances, and surface quality for different stamping die applications.
Precision Inspection
for Punch and Die Quality
Before shipment, each punch and die component is checked according to the drawing and key tolerance requirements.
We inspect critical dimensions, profiles, cutting edges, surface finish, and fit-related features to help ensure stable assembly and reliable stamping performance.
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Cutting edge sharpness and zero-micro-chipping verification on every punch.
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Exact profile matching and radii inspection via high-resolution optical comparators.
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Sub-micron die clearance and cavity dimension verification.
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Concentricity checks for pilot punches and standard tool shanks.
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Surface finish (Ra) and micro-crack inspection under high-magnification microscopes.
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Coating thickness and adhesion inspection for anti-galling performance.
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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 your punch and die components?
We primarily utilize premium micro-grain Tungsten Carbide (such as FUJILLOY and EVERLOY) for extreme wear resistance, and high-toughness Powdered Tool Steels (like ASP23 or SKH51) for heavy-duty impact requirements. We can tailor the material and PVD/CVD coatings to your specific strip material and stamping SPM.
What manufacturing tolerances can you achieve for stamping tooling?
Utilizing advanced Wire EDM and optical profile grinding (PG), we routinely achieve strict sub-micron mating clearances. Our overall machining tolerances are consistently controlled within ±0.001mm to ±0.002mm, ensuring zero-burr shearing for precision electronic and semiconductor components.
What is the typical lead time for custom punch and die orders?
Standard or mildly customized tool steel components typically take 7-10 days. For highly complex geometries or specially coated tungsten carbide tooling, lead times generally range from 10 to 15 days, depending on your drawing specifications and current material inventory.
How can I extend the lifespan of punch and die components?
Regular maintenance, proper lubrication, and using high-quality materials with excellent wear and temperature resistance can help extend the lifespan of punch and die components.
What are the different types of punch and die?
Common types include blanking dies, bending dies, drawing dies, and coining dies, each designed for specific forming or cutting tasks in the manufacturing process.
