Attached to the press brake’s moving slider (active forming part)
Pushes down to press sheet metal into the lower die
Sets the workpiece’s shape, bending angle, and rounded edges
Reduces material springback and avoids damage to bent parts
Hardness: HRC45–HRC50
Strong, tough, and wear-resistant
Handles heavy loads and frequent use without breaking
Lasts long and ensures consistent bending
Standard Straight-Edge Punch: Most common, for regular 90° bends and straight edges (works with mild steel, galvanized steel).
Standard Acute Punch: Smaller angle (85°–88°), for precise small bends and reducing springback (good for stainless steel).
Gooseneck Punch: Curved design, for deep U-shaped parts and avoiding damage to bent edges.
Sash Punch: For specialized box and pan bending tasks.
Arc & Radius Punch: Rounded shape, for bending arcs and smooth edges (prevents scratches on thin sheets).
Custom Irregular Punch: Made to order for unique, non-standard bending needs (e.g., automotive parts, cabinets).
Fits major global press brake systems: Amada-style (Euro), Trumpf-Wila, and American style clamping.
Works seamlessly with your existing equipment (no extra adapters needed).
Match Material Springback: Mild steel (little springback) → 86°–88° punch; stainless steel (more springback) → 85° punch.
Match Workpiece Shape: Straight bends → standard punch; U-shapes → gooseneck punch; arcs → radius punch; box/pan → sash punch.
Fit Your Press Brake: Choose a punch that matches your machine’s clamping system (Amada, Trumpf-Wila, etc.).
Check Height & Stroke: The punch’s height must fit the machine’s slider stroke (too tall/short causes problems).
Handle Bending Force: Pick a punch strong enough for your material’s thickness and type (overloading breaks tools).
Precision Ground: Every tool is ground to ±0.02mm tolerance (perfect alignment, consistent accuracy).
Long-Lasting: High-grade materials mean less sharpening and replacement (cuts maintenance costs).
Customizable: Made-to-order tools based on your drawings and material thickness (e.g., stainless steel).
Country/Standard Organization | Standard Code | Corresponding Grade |
China (GB) | GB/T 3077 | 42CrMo or 42CrMo4 |
USA (AISI/ASTM) | ASTM A29 | 4140 |
International Organization for Standardization (ISO) | ISO 683-1 | 42CrMo4 |
Germany (DIN) | DIN EN 10083 | 1.7225 (or 42CrMo4) |
Japan (JIS) | JIS G4105 | SCM440 |
UK (BS) | BS 970 | 708M40 (EN19) |







Nanjing Alas International Co., Ltd. is a professional industrial tooling manufacturer focused on shear blades, bending dies, shredder blades, and custom wear parts. We offer full application engineering, material selection, setup guidance, and after-sales support to global customers.
Tell us your requirements, and our engineering team will provide professional solutions for blade specification, tool life optimization, and cost-effective production.
