V8 / V12 30° Double-V Press Brake Lower Die

This 30° double-V press brake lower die, also referred to as a 2V acute-angle lower die, combines V8 and V12 openings within a single tooling body.

Both V-grooves feature a 30° die angle, making the die suitable for acute-angle forming processes where a narrower groove angle is required than with conventional 85° or 88° lower dies.

The illustrated configuration has an overall width of 50 mm, an overall height of 46 mm, and a rated load capacity of 60 ton/m.

The V8 and V12 openings provide two different forming options within one lower tool. The V8 groove is suitable for smaller-opening acute-angle applications, while the larger V12 groove provides increased forming clearance for thicker material, larger bend radii or bending processes requiring a wider V-opening.

The 30° groove geometry makes this lower die suitable for acute-angle bending, pre-bending, springback compensation, hemming preparation and multi-stage forming, depending on the punch geometry, workpiece and bending sequence.

The illustrated version uses a plug-in mounting system. The V-opening combination, die angle, overall dimensions, tooling length and mounting interface can all be customized according to customer requirements.

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Key Features

• Double-V / 2V lower die structure
• Integrated V8 and V12 openings
• Both V-grooves manufactured at 30°
• Designed for acute-angle bending
• Suitable for pre-bending and multi-stage forming
• Overall width: 50 mm
• Overall height: 46 mm
• Rated load capacity: 60 ton/m
• Plug-in mounting system
• V12 groove provides more forming clearance than the V8 opening
• Two acute-angle V-openings integrated into one tooling body
• Precision-machined V-groove geometry
• Custom V-opening combinations available
• Custom die angles available
• Custom overall dimensions available
• Custom tooling lengths and segmentation available
• Custom mounting profiles available

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Technical Specifications

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30° Acute-Angle Double-V Configuration

Unlike conventional 85° or 88° lower dies, this tooling uses 30° V-grooves to provide the geometry required for sharper-angle forming processes.

This makes the die suitable for applications involving:

• Acute-angle bending
• Pre-bending
• Over-bending for springback compensation
• Multi-stage bending
• Hemming preparation
• Special sheet metal forming

The final bending result depends on the punch angle, sheet thickness, material grade, tensile strength, V-opening, forming force and press brake setup.

The V8 / V12 configuration shown here is one available example. Other 30° double-V combinations can be manufactured according to the customer's bending requirements.

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V8 and V12 Working Openings

The two V-grooves provide different forming characteristics within the same lower die.

The V8 opening offers a smaller forming gap and is suitable for applications requiring a relatively small V-opening.

The V12 opening provides additional forming clearance and can be selected where a larger die opening is required for the material thickness, target bend radius or bending sequence.

This two-opening structure provides greater process flexibility than a single-V lower die when multiple acute-angle forming conditions are used in production.

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Typical Applications

This V8 / V12 30° double-V lower die is suitable for:

• Acute-angle sheet metal bending
• Pre-bending before final forming
• Multi-stage bending processes
• Springback compensation
• Hemming preparation
• Precision flange forming
• Stainless steel sheet bending
• Carbon steel sheet bending
• Electrical enclosure manufacturing
• Metal cabinet fabrication
• Machinery covers and housings
• Custom sheet metal components
• Production requiring two acute-angle V-opening sizes

The appropriate V-opening and tooling geometry should be selected according to the material, sheet thickness, required inside radius, bend angle and complete forming process.

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Plug-In Lower Die Mounting System

The illustrated product uses a plug-in mounting system.

The bottom profile engages with the corresponding lower die holder or press brake table interface to provide accurate positioning and support during bending.

The plug-in structure shown in this drawing represents one reference configuration only.

WYS Machinery can customize the lower die mounting interface according to:

• Press brake model
• Existing lower die holder
• Existing tooling system
• Customer tooling drawing
• Existing die sample
• Required mounting dimensions

The complete lower die cross-section can therefore be adapted to different press brake systems.

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Custom 30° Double-V Press Brake Dies

WYS Machinery manufactures both standard and customized 30° double-V press brake lower dies for different acute-angle bending applications.

The V8 / V12 configuration shown here represents one available tooling design rather than a fixed manufacturing limitation.

Customers can customize:

V-opening combinations, die angles, overall height, overall width, shoulder geometry, V-bottom geometry, load capacity, tool length, segmented length, bottom mounting profile and positioning structure.

For non-standard bending applications, customers can provide:

• Workpiece drawing
• Material grade
• Sheet thickness
• Required bending angle
• Press brake model
• Existing tooling drawing or sample

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

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Compatible Press Brake Tooling Systems

WYS Machinery can manufacture double-V and multi-V 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 mounting structure shown on this page is only one reference design.

The V-opening, angle, overall height, width and complete mounting geometry can all be adapted to the customer's existing press brake and tooling interface.

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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 · Multi-V Dies · 30° Acute-Angle Dies · Other Acute-Angle Dies · Wide-Opening Dies · High-Tonnage Dies · Segmented Dies · Special Lower Dies · Custom Press Brake Tooling

This allows the lower tooling configuration to be selected according to the actual bending process rather than being limited to one standard die structure.