FAQs

• High-quality press brake tooling is typically made from 42CrMo or 42CrMo4 alloy steel, which provides excellent strength, wear resistance, and toughness. This material performs reliably under high bending forces and repeated production cycles.

Heat treatment improves the strength, hardness, and durability of tooling. Processes such as quenching, tempering, and induction hardening help maintain structural toughness while the working surface achieves high wear resistance. Bendmax applies controlled heat treatment processes to ensure stable tooling performance.

In addition to high-precision press brake tooling, Bendmax provides a complete range of solutions to support efficient and accurate sheet metal bending operations.

Our product range includes:

Press Brake Tooling
Bendmax manufactures high-precision punches and dies made from premium 42CrMo alloy steel, designed for durability, accuracy, and compatibility with major press brake systems such as Euro, Amada, and Trumpf styles.

Press Brake Cylinders
High-performance hydraulic cylinders designed for press brakes, ensuring stable force transmission, smooth movement, and reliable long-term operation.

Clamping Systems
Quick and secure clamping systems allow fast tool changes and precise tool positioning, helping operators improve efficiency and reduce machine downtime.

Crowning Systems
Mechanical or hydraulic crowning systems compensate for machine deflection during bending, ensuring consistent bending angles across the full length of the workpiece.

Other Press Brake Accessories
Bendmax also supplies a variety of accessories, including tool holders, adaptors, and positioning devices, helping customers optimize bending performance and flexibility.

By offering integrated tooling and machine support components, Bendmax helps manufacturers improve bending accuracy, productivity, and overall production reliability.

The most common defect is springback, where the metal slightly returns to its original shape after bending. It often leads to incorrect bend angles and requires compensation during design or setup.

• 1. Identify Deformation Risks Before Bending
• 2. Control Deformation by Material Selection
• 3. Reduce Deformation Through Proper Bending Parameters
• 4. Prevent Deformation Through Part Design Optimization
• 5. Minimize Deformation with Proper Bending Sequence
• 6. Process Control Methods to Prevent Deformation
• 7. Preventing Deformation in Prototyping and Mass Production
• 8. When Deformation Cannot Be Fully Prevented
• 9. Practical Checklist to Prevent Sheet Metal Deformation in Bending

Bending angle variation is a common issue in sheet metal forming and is usually caused by material thickness variation, differences in material strength, press brake deflection, improper V-die selection, or tooling wear. These factors can affect the bending force and springback, resulting in inconsistent bending angles along the workpiece.

To minimize these issues, Bendmax manufactures high-precision press brake tooling using premium 42CrMo alloy steel, combined with controlled heat treatment processes. The tool body hardness is maintained at HRC 30–35, while induction hardening increases the working surface hardness to HRC 54–60, ensuring stable performance and long service life.

In addition, Bendmax provides engineering support to help customers select the correct punch, die opening, and tooling configuration, helping achieve consistent bending angles and improved production efficiency.

Press brake tooling is generally classified into standard tooling and special tooling, depending on whether the bending application requires common geometries or customized forming solutions.

Standard tooling is designed for general sheet metal bending operations and is widely used in most fabrication workshops. These tools follow common industry standards and are often available from stock, allowing for faster delivery and easy replacement.

Typical examples of standard tooling include:

• Straight punches for general bending operations

• Gooseneck punches for clearance bending of formed parts or box shapes

• Standard V-dies (single V, double V, or multi-V dies)

• Radius punches and dies for controlled bending radii

• Four-way dies for flexible V-opening selection

Standard press brake punches are commonly manufactured with industry-standard bending angles such as 30°, 60°, 75°, 78°, 85°, and 88°, which are suitable for common bending methods including air bending and bottom bending.

Special tooling, on the other hand, is designed for complex workpieces or specialized forming operations that cannot be achieved using standard tools. These tools are typically engineered according to the customer's part geometry, material thickness, and bending sequence.

Common examples of special tooling include:

• Hemming and flattening tools for edge folding

• Offset bending tools (Z-bending tools)

• Corrugating tools for forming wave or rib structures

• Embossing tools for reinforcement ribs or patterns

• Box bending punches designed for deep box profiles

• Window punches for bending parts with interference areas

Bendmax provides both standard press brake tooling and customized special tooling solutions. With strong engineering support and precision manufacturing capabilities, Bendmax can help customers select standard tooling for common bending tasks or design special tooling based on drawings or samples to improve bending efficiency, accuracy, and production reliability.

Selecting the correct V-die is critical for achieving accurate bending angles, protecting the workpiece surface, and ensuring efficient production in sheet metal fabrication.

Common types of press brake V-dies include:

• Single V-dies, which are commonly used for general bending applications.

• Double V-dies, providing two V openings in one die for improved flexibility.

• Multi-V dies, allowing multiple V openings to support different sheet thicknesses.

• Radius dies, designed to produce specific bending radii on the workpiece.

• Special forming dies, used for applications such as hemming, flattening, offset bending, or other complex forming operations.

When selecting the correct V-die, several factors should be considered, including sheet thickness, material type, bending radius, and required bending angle. A common guideline is that the V-opening should be approximately 6–10 times the sheet thickness, which helps achieve stable bending results and prevents excessive tonnage or material damage.

Bendmax provides a wide range of standard and special press brake dies, including single V, multi-V, and custom forming dies. Contact us now!

Common tooling systems include European (Promecam/Euro style), Amada style, and Trumpf style. Bendmax manufactures tooling compatible with multiple press brake systems used worldwide.

Surface marks can be minimized by using mark-free dies, wing bending tooling, or protective films, along with proper machine setup. Bendmax provides specialized tooling solutions designed for mark-free bending applications.

Selecting the right tooling depends on sheet thickness, material type, bending angle, and part geometry. Bendmax engineering support can help evaluate bending applications and recommend suitable punch and die solutions.

Standard tooling that is available in stock can usually be delivered within 3–5 days, while custom tooling generally requires 20–25 days, depending on design complexity. Bendmax maintains stock for common tooling to support fast delivery.