The punching die is a fundamental tool in sheet metal processing, characterized by its ability to deliver high-speed production with exceptional precision.
Firstly, it offers high efficiency. Unlike drilling, punching uses shear force to cut holes instantly, making it ideal for mass production.
Secondly, it ensures superior machining quality. A well-maintained punching die provides clean cutting edges without burrs, minimizing the need for secondary operations.
Thirdly, it is highly economical. Although the initial mold cost exists, the per-unit processing cost is extremely low for large batches.
Lastly, it boasts strong adaptability. By simply changing the punch and die inserts, the mold can produce different hole sizes and complex shapes.
| Parameter | Specification / Typical Value |
| Die Type | Single-station / Multi-station Inline Punching Die; Progressive Notching Die; Perforating Die |
| Applicable Process | Inline punching synchronized with roll former (Servo feeder or mechanical cam linkage) |
| Punch / Die Material | SKD11 (JIS 1.2379 / D2), Cr12MoV, DC53, SKH-51 (High-Speed Steel for small Ø holes), Tungsten Carbide (optional for long-life button dies) |
| Punch Hardness | HRC 60–64 (SKD11/D2); HRC 62–65 (SKH-51) |
| Die Button Hardness | HRC 60–63 (carbide buttons: HRA 89–92) |
| Mold Base Material | 45# Steel / S50C (pre-hardened HRC 28–32) or cast iron |
| Stripper Plate Material | SKD11 or 45# with heat treatment |
| Guide System | MISUMI / PUNCH brand guide pillars & bushings (Ø12–Ø30mm), dual or four-post |
| Punch Hole Diameter Range | Ø2.0 mm – Ø50 mm (round); Custom slotted / oblong / square / keyhole shapes |
| Die Clearance | 5%–10% of material thickness (typical: 0.05–0.15 mm for mild steel) |
| Dimensional Tolerance | Punch position tolerance: ±0.10 mm; Profile cut tolerance: ±0.15 mm |
| Die Life (Est.) | 500,000 – 3,000,000+ strokes (material & maintenance dependent) |
| Surface Treatment | TiN / TiCN / DLC coating optional for improved wear & anti-galling |
| Compatible Material Thickness | 0.3 mm – 6.0 mm (cold-rolled steel, galvanized, stainless, aluminum) |
| Die Set Height (Shut Height) | Custom per press / punch unit (typical: 150–300 mm adjustable) |
| Standard Components | MISUMI, Dayton, Danly, or equivalent per customer request |
| Design Software | AutoCAD, SolidWorks, UG NX, CATIA |
| Manufacturing Process | CNC milling → Heat treatment → WEDM (Wire EDM) → Grinding → Assembly & Trial |
| Certification | ISO 9001:2015; Material & Heat Treatment Certificates provided |
| Packaging | Anti-rust oil + VCI bag + Plywood case |
High Efficiency: Mass production capability, fast processing speed.
Excellent Precision: Stable hole positioning accuracy and consistent size.
Clean Cut Edge: No burrs or deformation if the clearance is set correctly.
Cost-Effectiveness: Low unit cost for mass production, simple structure.
Long Service Life: High wear resistance due to hardened tool steel materials.
Versatility: Can process various shapes (round, square, special-shaped).
We are looking forward to working with you. Please feel free to contact us if you have any inquiry.
