Progressive Die Punch – PG Profile Grinding Precision

Progressive Die Punch by PG Profile Grinding

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:

Progressive stamping dies

Precision metal stamping molds

Connector and terminal dies

Automotive and electronic components

High-speed stamping production lines

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.