V16 / V32 85° Centered Two-Face Double-V Press Brake Lower Die

This two-face double-V press brake lower die integrates V16 and V32 openings, both manufactured at an 85° die angle.

Unlike conventional double-V lower dies where two V-grooves are positioned side by side on the same upper surface, the V16 and V32 openings are arranged on separate working faces of the die body.

The illustrated configuration has an overall width of 50 mm, an overall height of 46 mm, and a rated load capacity of 100 ton/m.

This type of structure is particularly useful when two V-openings differ significantly in size. A large V-opening such as V32 requires more shoulder space and die-body material, while a smaller V-opening such as V16 has different geometric requirements. Arranging the two grooves on separate working faces allows the die body to maintain sufficient supporting material and a practical cross-section without unnecessarily increasing the overall tooling width.

Another important feature of this design is its centered mounting configuration. When the selected V-groove is placed in the working position, the centerline of the active V-opening is aligned with the centerline of the lower mounting interface.

This differs from an offset mounting structure, where the V-groove centerline and mounting centerline are intentionally displaced from each other.

The centered arrangement provides a straightforward tooling reference and maintains the working V-groove directly over the mounting centerline during bending.

The V16 / V32 design shown here is one available configuration only. V-opening combinations, angles, dimensions, working-face arrangement, mounting position and complete die geometry can all be customized according to customer requirements.

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Key Features

• Two-face double-V / 2V lower die
• Integrated V16 and V32 openings
• Both V-grooves manufactured at 85°
• V-openings arranged on separate working faces
• Centered mounting configuration
• Active V-groove centerline aligned with mounting interface centerline
• Different from offset-center lower die structures
• Suitable for combinations with significantly different V-opening sizes
• Helps maintain sufficient die-body material around each V-groove
• Supports practical die-body rigidity
• Overall width: 50 mm
• Overall height: 46 mm
• Rated load capacity: 100 ton/m
• Plug-in mounting system
• Custom V-opening combinations available
• Custom center or offset mounting structures available
• Custom dimensions, angles and tool lengths available

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Technical Specifications

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Two-Face Double-V Structure

The V16 and V32 openings are positioned on different working faces instead of being arranged side by side on the same plane.

This structure can be advantageous when:

• Two V-openings have a large size difference
• A large V-opening requires additional shoulder width
• Same-face groove spacing becomes too limited
• Additional supporting material is required around the grooves
• Tooling rigidity needs to be maintained
• Two different forming ranges are required within one die body

By distributing the grooves across different working faces, the available die-body section can be used more effectively.

This allows a relatively compact die to accommodate both V16 and V32 openings while maintaining sufficient material around each working groove.

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Centered V-Groove and Mounting Interface

A defining feature of this die is the relationship between the working V-groove centerline and the mounting interface centerline.

In the illustrated configuration, when either working V-opening is correctly positioned for bending:

the centerline of the active V-groove is aligned with the centerline of the plug-in mounting interface.

This is referred to here as a centered mounting configuration.

The centered structure differs from an offset lower die, where the active V-groove is intentionally positioned away from the mounting centerline.

Depending on the customer's press brake table, die holder, available space and bending application, WYS Machinery can manufacture either:

• Centered mounting configurations
• Offset mounting configurations
• Other customized positioning structures

The mounting geometry should therefore be selected according to the actual machine and tooling interface.

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V16 and V32 Working Openings

The V16 opening provides a medium V-opening suitable for applications requiring a relatively smaller natural inside radius and forming width.

The larger V32 opening provides more forming clearance and can be used for applications involving:

• Thicker sheet material
• Larger natural inside bend radii
• Wider flange-forming requirements
• Reduced forming force compared with a smaller V-opening under otherwise comparable conditions

Because V16 and V32 differ significantly in size, the two-face arrangement provides a practical way to integrate both openings into one lower die.

The final V-opening should be selected according to:

• Sheet thickness
• Material grade
• Tensile strength
• Required bend radius
• Bend angle
• Flange dimension
• Forming force
• Bending method

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Typical Applications

This V16 / V32 centered two-face lower die is suitable for:

• General sheet metal bending
• Mixed-thickness production
• Medium and thicker sheet fabrication
• Carbon steel bending
• Stainless steel bending
• Machinery and equipment manufacturing
• Electrical cabinet fabrication
• Structural sheet metal components
• Applications requiring both medium and large V-openings
• Production requiring efficient switching between two V-opening ranges
• Press brake systems requiring centered lower-tool alignment

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Why Use Separate Working Faces?

When two V-openings are relatively similar in size, both grooves can often be positioned on the same working surface.

However, when the size difference becomes much larger, placing both grooves side by side can create several geometric limitations:

• Insufficient spacing between V-grooves
• Reduced shoulder material
• Restricted support around the larger groove
• Excessively wide die body
• Reduced structural efficiency

A two-face double-V structure provides another solution.

By placing the V16 and V32 grooves on separate working faces, the tooling can maintain:

• More supporting material around each groove
• A practical overall die width
• Better use of the available die cross-section
• Greater flexibility between different V-opening ranges

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Plug-In Lower Die Mounting System

The illustrated lower die uses a plug-in mounting system.

The mounting interface provides a defined connection with the corresponding lower die holder or press brake table.

The centered configuration shown here places the selected V-groove centerline in alignment with the mounting centerline during operation.

The plug-in profile shown in the drawing is only one available configuration.

WYS Machinery can customize:

• Plug-in geometry
• Mounting width
• Positioning profile
• Centered or offset relationship
• Overall die cross-section
• Die-holder compatibility

according to the customer's existing machine and tooling system.

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Custom Double-V Press Brake Dies

WYS Machinery manufactures standard and customized double-V lower dies, including conventional same-face, two-face, centered and offset configurations.

The V16 / V32 tooling shown on this page is one design example rather than a fixed product limitation.

Customers can customize:

V-opening combinations, V-groove angles, working-face arrangement, overall height, overall width, load capacity, groove centerline position, mounting centerline position, bottom profile, tool length and segmentation.

For special applications, customers can provide:

• Workpiece drawings
• Required V-opening sizes
• Material grade
• Sheet thickness
• Required bend angle
• Existing tooling drawing
• Existing tooling sample
• Press brake model

Our engineering team can evaluate the application and recommend a suitable lower die configuration.

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Compatible Press Brake Tooling Systems

WYS Machinery manufactures lower dies for different press brake tooling standards and machine configurations.

Available configurations include:

AMADA / Promecam Type, TRUMPF Type, WILA Type, LVD Type, Bystronic Type, European Type and other customized press brake tooling systems.

The plug-in structure and centered mounting relationship shown in this product drawing represent one reference configuration only.

The V-opening, angle, height, width, mounting profile and centerline relationship can all be customized according to the customer's existing press brake system.

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Standard & Custom Lower Die Solutions

WYS Machinery manufactures a wide range of press brake lower tooling, including:

Single-V Dies · Double-V Dies · Two-Face Double-V Dies · Centered Double-V Dies · Offset Double-V Dies · Multi-V Dies · Acute-Angle Dies · Wide-Opening Dies · High-Tonnage Dies · Special Lower Dies · Custom Press Brake Tooling

This allows the lower die structure to be selected according to the actual bending requirement rather than being limited to a fixed catalog profile.