
PRODUCT DETAILS
High Precision 42CrMo Steel Sheet Metal Press Brake Upper Dies
Ma'anshan Guangchuan Machinery Knife Mold Technology Co., Ltd. is a professional manufacturer of high-precision press brake upper dies built for industrial sheet metal bending and forming operations. Our upper tooling dies deliver consistent bend angles, smooth forming surfaces and minimal springback across carbon steel, stainless steel, aluminum and alloy sheets. Manufactured from premium 42CrMo and Cr12MoV tool steels with vacuum quenching and precision CNC grinding, these dies offer exceptional wear resistance and anti-deformation performance, boosting bending accuracy and extending tool service life for metal fabrication lines.
- Order(MOQ)
- 1
- Payment
- TT,LC
- Product Origin
- China
- Color
- N/A
- Shipping Port
- Ma'anshan Shipping Port
- Lead Time
- 30 days
Need a custom size or material? Send us your drawing.
Product details
These press brake upper dies feature standardized clamping shanks for drop-in fit on mainstream press brakes. Precision-machined forming edges deliver uniform bending force, reduce material springback error, and ensure stable repeatable quality for high-volume sheet metal production.
Technical Specifications
|
Feature |
Technical Details |
| Material | 42CrMo Alloy Steel, Cr12MoV (SKD11), T10A Carbon Tool Steel (Customizable) |
| Hardness | 45-52 HRC (42CrMo); 58-62 HRC (Cr12MoV), optimized for heavy bending loads |
| Tolerances | Bend Angle Tolerance ±0.5°; Straightness ≤0.02mm/m; Dimensional Tolerance ±0.01mm |
| Die Length | 100mm to 3000mm (segmented or full-length, fully customizable) |
| Shank Type | Standard quick-clamp shank, European style, American style, custom shank profiles |
| Forming Profiles | 90° standard punch, acute angle punch, gooseneck punch, hemming punch, custom profiles |
| Compatible Machines | AMADA, Yawei, Yangli, LVD, Bystronic and other mainstream press brake brands |
| Processing | Vacuum quenching & tempering, deep cryogenic treatment, precision CNC profile grinding |
Main Features
- High Level Forming Precision: CNC profile grinding ensures accurate punch geometry and uniform edge straightness, delivering consistent bend angles along the full working length with minimal deviation.
- Dual-Performance Steel Structure: Optimized heat treatment creates a hard wear-resistant surface and tough impact-resistant core, resisting both surface abrasion and structural deformation under repeated high-pressure bending.
- Standardized Quick-Mount Shank: Universal clamping shank design matches most press brake quick-change tool holders, enabling fast die installation and adjustment to reduce setup downtime.
- Diverse Forming Profile Options: Wide range of standard punch profiles including 90°, acute angle, gooseneck and hemming dies, covering most common sheet metal bending requirements in one tool set.
- Stress-Relieved Stable Structure: Cryogenic treatment eliminates internal residual stress inside the steel, preventing gradual die deformation and maintaining long-term bending accuracy after extended use.
Advantages
- Controlled Material Springback: Precision-machined punch profiles and optimized hardness effectively control sheet metal springback, lowering secondary correction work and improving finished part pass rate.
- Extended Service Lifespan: High wear-resistant steel and surface hardening treatment extend die service life compared with ordinary carbon steel dies, reducing long-term tool replacement costs.
- Fast Setup & Changeover: Standard shank design and segmented die options allow quick tooling changes for different bending tasks, cutting machine downtime and improving production flexibility.
- Wide Material Compatibility: Suitable for bending carbon steel, stainless steel, aluminum alloy, galvanized sheet and other common metal materials with stable forming quality.
- Cost-Effective OEM Alternative: Factory-direct pricing provides OEM-level precision and durability at significantly lower cost, ideal for batch replacement in metal fabrication workshops.
Product Applications
- Machine Compatibility: Hydraulic press brakes, CNC bending machines, servo electric press brakes, panel benders.
- Processable Materials: Carbon steel sheet, stainless steel plate, aluminum alloy, galvanized steel, copper sheet, cold-rolled steel.
- Industry Applications: Sheet metal fabrication, cabinet & enclosure manufacturing, automotive parts, elevator components, steel furniture, electrical equipment housings.
- Typical Bending Tasks: Right angle bending, acute angle forming, hemming & folding, U-channel bending, custom profile forming.

Why Choose Us
- Sheet Metal Bending Expertise: Deep understanding of bending stress mechanisms and wear characteristics, able to recommend optimal material and profile for different working conditions.
- Rigorous Full Inspection Process: Each die undergoes hardness testing, straightness detection and angle verification before delivery to ensure batch consistency.
- Full Customization Capability: Support custom die profiles, lengths, shank types and hardness specifications to match non-standard bending tasks and equipment models.
- Advanced Precision Machining Equipment: Large CNC profile grinders and vacuum heat treatment furnaces guarantee stable batch quality and high dimensional accuracy.
- Targeted Technical Support: Provide professional guidance on die matching, bending parameter setting and daily maintenance to optimize forming efficiency and die lifespan.
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