Bending Dies for Hydraulic Press

Bending Dies for Hydraulic Press
Bending Dies for Hydraulic Press

We manufacture Bending Dies for Hydraulic Press to bend sheet metal edges. Bending Dies for Hydraulic Press are used in metalworking industries

Bending dies for a hydraulic press are specialized tooling components used in conjunction with the press to perform bending operations on sheet metal or other materials. These dies are designed to shape the workpiece into the desired bend angle and configuration. Here are some key aspects to consider when it comes to bending dies for a hydraulic press:

  1. Types of Bending Dies: There are various types of bending dies available, depending on the specific bending requirements. Some common types include:
    • V-Dies: These dies have a V-shaped groove that allows for bending at different angles by adjusting the position of the material within the groove.
    • U-Dies: These dies have a U-shaped channel that is used for creating U-shaped bends or channels in the workpiece.
    • Radius Dies: These dies have a curved shape that enables the creation of bends with a specific radius.
    • Hemming Dies: These dies are designed for creating hemmed edges or folds in the workpiece, typically used for joining two panels together.
  2. Material Compatibility: Bending dies should be selected based on the material being bent. Different materials have different characteristics, such as hardness, thickness, and ductility, which influence the type of die required. It’s important to choose bending dies that are compatible with the specific material to ensure proper forming without damage.
  3. Die Dimensions and Profiles: Bending dies come in various dimensions and profiles to accommodate different bending needs. The dimensions of the die, such as width and height, should be suitable for the size of the workpiece and the desired bend angle. The die profiles can vary, such as sharp V-shapes, rounded curves, or specific radii, to achieve the desired bending results.
  4. Die Construction and Material: Bending dies are typically made from hardened tool steel to withstand the forces and pressures involved in bending operations. The die material should be selected based on factors such as the material being bent, the bending forces involved, and the desired lifespan of the die. Proper heat treatment and surface coatings may be applied to enhance the durability and wear resistance of the dies.
  5. Mounting and Compatibility: Bending dies need to be securely mounted onto the hydraulic press to ensure accurate and consistent bending results. The mounting mechanism should be compatible with the specific press model and allow for easy installation and removal of the dies. It’s important to ensure proper alignment and stability of the dies within the press to avoid misalignment or slippage during bending operations.
  6. Tooling Maintenance and Replacement: Bending dies, like any other tooling components, require regular maintenance to ensure optimal performance. This may include periodic cleaning, lubrication, and inspection for wear or damage. Over time, bending dies may wear out and require replacement, especially if they become worn or damaged beyond repair. Having spare dies readily available can help minimize downtime during maintenance or replacement.

It’s important to consult the manufacturer’s documentation or seek guidance from tooling experts to select the appropriate bending dies for your specific hydraulic press and bending requirements. They can provide valuable insights and recommendations based on factors such as material thickness, desired bend angles, and the specific press model being used.

Bending Dies for Hydraulic Press

Bending dies for a hydraulic press are specialized tooling components used to shape and bend sheet metal or other materials when operated in conjunction with a hydraulic press. These dies are designed to apply controlled force to the material, causing it to bend or form into a desired shape. Bending dies come in various configurations to accommodate different bending tasks and requirements. Here are some key aspects of bending dies for hydraulic presses:

Types of Bending Dies:

  1. V-Die: A V-die consists of two matching dies, one with a V-shaped groove and the other with a corresponding V-shaped punch. It is commonly used for creating straight-line bends, and the angle of the V-die can be customized to achieve various bend angles.
  2. U-Die: A U-die, also known as a channel die, has a U-shaped groove and is used for forming channels, troughs, and U-shaped bends in the material. It is suitable for applications where a straight-line bend is needed with a U-shaped profile.
  3. Edge Bending Die: Edge bending dies are designed for bending the edges of a sheet or plate material to form a flange. They are often used in applications such as making boxes or enclosures.
  4. Offset Bending Die: Offset bending dies allow for bends that are not in a straight line. They are used when you need to create bends at different distances from the edge of the material.
  5. Hemming Die: Hemming dies are used for creating hems or folds along the edge of a sheet metal component. This is common in automotive applications for sealing edges and providing stiffness.
  6. Radius Bending Die: These dies have a rounded profile and are used to create bends with a specific radius, often used in architectural and decorative metalwork.

Key Considerations for Bending Dies:

  1. Material Type and Thickness: The type of material being bent (e.g., steel, aluminum, or stainless steel) and its thickness influence the design and strength of the bending dies.
  2. Bend Angle: Consider the required bend angle, as different dies are designed for specific bend angles, and you may need custom dies for non-standard angles.
  3. Die Opening Width: Ensure that the die opening width matches the material’s width to be bent. It should be slightly wider to allow for material flow during bending.
  4. Die Material: Bending dies are often made from hardened tool steel or other wear-resistant materials to withstand the high forces involved in bending.
  5. Die Design: The design of the die, including the shape of the groove or profile, must match the desired bend shape.
  6. Press Capacity: Ensure that the hydraulic press used is capable of providing the required bending force for the material and die being used.
  7. Safety: Always prioritize safety when using hydraulic presses and bending dies. Ensure that appropriate safety measures, such as guards and safety procedures, are in place.

Bending dies are critical components in metalworking and fabrication processes, allowing for the precise shaping and forming of sheet metal and other materials. Choosing the right type and design of bending die is essential for achieving accurate and consistent results in hydraulic press bending operations.

Bending dies are essential components of hydraulic press brakes, playing a crucial role in shaping sheet metal into various forms and angles. These dies are paired with punches, which directly apply force to the sheet metal, to create the desired bend.

Types of Bending Dies

There are several types of bending dies, each designed for specific applications and sheet metal thickness ranges:

  1. V-Dies: These are the most common type of bending dies, suitable for a wide range of sheet metal thicknesses and bend angles. They feature a V-shaped groove that provides support and guidance during the bending process.
  2. U-Dies: These dies are primarily used for bending thinner sheet metal, typically up to 1/8 inch thick. They feature a U-shaped groove that provides more support than V-dies, preventing the sheet metal from buckling or deforming during bending.
  3. Offset Dies: These dies are used to create bends with an offset, meaning the bend line is not perpendicular to the edge of the sheet metal. They are commonly used for creating channels, ducts, and other components with angled bends.
  4. Gooseneck Dies: These dies are specifically designed for bending the ends of tubing and pipes. They feature a rounded profile that matches the curvature of the tube or pipe, preventing distortion during bending.
  5. Wipe Forming Dies: These dies are used for creating bends with a smooth and burr-free surface. They utilize a wiping action, where the punch slides along the die surface, eliminating any rough edges or imperfections.

Material Selection for Bending Dies

The material used for bending dies depends on the specific application and the type of sheet metal being bent. Common materials include:

  1. Tool Steel: This is a common choice for bending dies due to its high hardness, wear resistance, and durability. It can withstand the repeated stress and impact of bending operations.
  2. High-Carbon Steel: This material offers a balance of hardness and toughness, making it suitable for bending less demanding applications.
  3. Cast Iron: This material is often used for larger bending dies due to its low cost and good wear resistance. However, it is not as strong as tool steel.
  4. Carbide: This material is used for high-volume production applications where extreme wear resistance is required. It is extremely hard and durable, but also more expensive than other materials.

Design Considerations for Bending Dies

The design of bending dies is critical for achieving precise and consistent bends. Factors to consider when designing bending dies include:

  1. Bend Angle: The die’s profile must match the desired bend angle accurately.
  2. Sheet Metal Thickness: The die must be appropriately sized for the thickness of the sheet metal being bent.
  3. Material Properties: The die material must be compatible with the material being bent to prevent material damage or wear.
  4. Clearance: Proper clearance between the punch and die is crucial to prevent interference and ensure smooth bending.
  5. Surface Finish: The die’s surface finish should be smooth and free from defects to prevent marking or scratching the sheet metal.

Maintenance of Bending Dies

Proper maintenance of bending dies is essential to extend their lifespan and ensure consistent bending performance. Regular maintenance practices include:

  1. Cleaning: Regularly clean the dies to remove debris, dirt, and metal shavings that can accumulate and affect bending accuracy.
  2. Inspection: Inspect the dies for any signs of wear, damage, or defects. Replace or repair damaged dies promptly to prevent further deterioration and potential hazards.
  3. Lubrication: Lubricate the dies regularly to reduce friction and wear. Proper lubrication can significantly extend the life of the dies.
  4. Sharpening: Sharpen cutting edges of wipe forming dies to maintain their effectiveness and prevent burrs.
  5. Storage: Store dies properly to prevent damage and corrosion. Use appropriate protective coatings and storage racks.

By selecting the appropriate die material, designing dies carefully, and maintaining them properly, metal fabricators can ensure that their hydraulic press brakes produce precise and consistent bends for various sheet metal components.

EMS Metalworking Machinery

We design, manufacture and assembly metalworking machinery such as:

  • Hydraulic transfer press
  • Glass mosaic press
  • Hydraulic deep drawing press
  • Casting press
  • Hydraulic cold forming press
  • Hydroforming press
  • Composite press
  • Silicone rubber moulding press
  • Brake pad press
  • Melamine press
  • SMC & BMC Press
  • Labrotaroy press
  • Edge cutting trimming machine
  • Edge curling machine
  • Trimming beading machine
  • Trimming joggling machine
  • Cookware production line
  • Pipe bending machine
  • Profile bending machine
  • Bandsaw for metal
  • Cylindrical welding machine
  • Horizontal pres and cookware
  • Kitchenware, hotelware
  • Bakeware and cuttlery production machinery

as a complete line as well as an individual machine such as:

  • Edge cutting trimming beading machines
  • Polishing and grinding machines for pot and pans
  • Hydraulic drawing presses
  • Circle blanking machines
  • Riveting machine
  • Hole punching machines
  • Press feeding machine

You can check our machinery at work at: EMS Metalworking Machinery – YouTube


  • Beading and ribbing
  • Flanging
  • Trimming
  • Curling
  • Lock-seaming
  • Ribbing
  • Flange-punching