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Progressiver Gesenkstempel - PG Profilschleifen Präzision
Progressiver Gesenkstempel - PG Profilschleifen Präzision
Custom PG Profile Grinding Progressive Die Punch with ±0.001 mm accuracy, designed for high-speed precision stamping applications.
Progressive Die Punch by PG Profile Grinding
PG punches are ideal for high-speed progressive dies, where stable performance and long tool life are critical.
Progressive Die Punch is customized according to customer drawing or samples. They allows precise control of width, profile shape, step geometry, and edge condition.
PG is able to produce micro punches with widths as small as 2–3 mm. At the same time, it maintains tight tolerances across the full length.

Typical Applications:
Technical Specifications of Precision Stamping Punch
| Parameter | Typical Values / Notes |
|---|---|
| Dimensional accuracy | ±0.001 mm |
| Surface roughness (Ra) | 0.1 – 0.2 μm typical |
| Repeatability | ±0.002 mm |
| Minimum feature size | 0.1 mm edge/slot |
| Maximum part size | Up to 400 mm × 200 mm × 150 mm (depends on machine model) |
| Max material hardness | HRC 68 (tungsten carbide, tool steel) |
Key point: PG excels at small, delicate, or thin-walled parts without deformation.

During the manufacturing process, we apply dimensional inspection and process control. This step ensure consistency and repeatability, making sure our PG grinding punch suitables for both prototype development and repeat production. Hepha Precision support Custom designs, small batch orders, and stable lead times. Therefore, technical drawings are welcome for evaluation. What’s more, each project is handled with a tooling-oriented approach to ensure reliable performance in actual stamping applications.
FAQs
We typically achieve ±0.002 mm tolerance with PG optical profile grinding.For simpler geometries or specific critical features, tolerance can reach to ±0.001mm. Final capability depends on part geometry, material, and profile complexity.
We typically grind radii as small as R0.02 mm (tool steel) and R0.01 mm (carbide).
All sharp corners are produced with a controlled micro-radius for durability and performance.
Yes. We specialize in complex and asymmetric PG-ground profiles, including compound curves and non-symmetrical shapes.
Carbide (Tungsten carbide) KR466,CD650,KD20
SKD11 / D2
SKH9 / M2
DC53
Powder steel
Yes. We regularly support connector molds and precision stamping dies, including fine-pitch and high-wear punch applications.
We accept UG,CAD,DWG files are preferred for complex PG profiles.
Normally 2-3days for production. The actual lead time will according to your design and quantity.
We have no strict MOQ, prototype & small batches are welcomed.
Customer drawings are treated as confidential, used only for production, and never shared with third parties. NDAs are available upon request.
PG optical profile grinding provides significantly higher profile accuracy and repeatability than standard grinding, especially for parts with complex contours and functional edges.
Compared with standard grinding, PG grinding offers:
Superior profile accuracy for curves, angles, and asymmetric shapes
Direct optical profile verification during grinding
Cleaner, sharper cutting edges with controlled micro-radius
Better consistency across multiple identical parts
Standard grinding is well suited for straight surfaces and simple geometries.
However, when the function of a punch or insert depends on precise contour shape, PG optical profile grinding ensures the profile matches the design intent exactly.
For precision molds, connector tooling, and fine-pitch stamping applications, PG grinding often results in more stable performance and longer tool life.







