TRUMPF Type V8 84° Small Single-V Press Brake Lower Die – 100 mm Working Height, 40 Ton/m

Key Features

• TRUMPF Type single-V lower die
• V8 die opening for small V-opening applications
• 84° die angle for precision and controlled bending
• 120 mm overall height
• 100 mm working height
• 20 mm overall width
• 40 ton/m load capacity
• Suitable for thin sheet metal bending
• Suitable for smaller flange and compact workpiece applications
• Narrow V-opening supports tighter bending geometry
• Suitable for precision air bending
• Suitable for CNC press brake production
• Manufactured from 42CrMo alloy steel
• Precision-machined V-opening and working surfaces
• V-opening, die angle, height, width, length, and mounting structure can be customized
• Available in TRUMPF Type, WILA Type, LVD Type, AMADA Type, BYSTRONIC Type, and other customer-specified structures
• Free press brake tooling design service available

Technical Specifications

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Typical Applications

This TRUMPF Type V8 84° single-V lower die is designed for applications requiring a relatively small V-opening and compact lower-tool geometry.

Typical applications include:

• Thin sheet metal bending
• Precision air bending
• Small flange bending
• Compact sheet metal components
• Electrical cabinet parts
• Small enclosure components
• HVAC sheet metal fabrication
• Light machinery covers
• Metal furniture parts
• General precision fabrication
• Repeated CNC press brake production
• Applications requiring smaller inside bend radii
• Workpieces where a large V-opening would be unsuitable

The V8 opening provides a more compact forming geometry than V12, V16, or larger lower dies and can therefore be useful for thinner material and smaller workpiece features.

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V8 Opening for Thin Sheet Metal Bending

The V8 opening is the main functional characteristic of this die.

In air bending, the V-opening influences several important process variables:

• Required bending force
• Inside bend radius
• Minimum flange length
• Material support
• Bend accuracy
• Tooling load

A relatively small V-opening such as V8 can be useful when working with thinner material or when the component has a relatively small flange dimension.

Compared with larger V-openings, the compact V8 geometry can provide:

• Better support for thinner sheet
• Smaller achievable bend radius
• Reduced minimum flange requirement
• More compact tooling geometry
• Greater suitability for small components

However, the correct V-opening should always be selected according to the actual material thickness, material strength, required radius, punch geometry, and bending method.

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84° Die Angle for Controlled Precision Bending

This lower die uses an 84° V angle, which is slightly more acute than common 86° or 88° lower dies.

The 84° geometry can provide additional flexibility for applications where controlled overbending or springback compensation is required.

The final bending angle depends on:

• Upper punch angle
• Punch radius
• Material type
• Material thickness
• Material springback
• V-opening
• Applied bending force
• Press brake settings

For this reason, the die should be selected together with the upper punch and the required final workpiece geometry.

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Compact 20 mm Tool Width

The die has a compact 20 mm overall width.

This is useful for applications where a larger lower-tool body is unnecessary and where a smaller tooling profile provides better accessibility around the bending area.

A compact tool body can help:

• Reduce unnecessary tooling mass
• Improve accessibility around small workpieces
• Fit compact bending setups
• Support small flange and thin-sheet applications

Compared with the V12 narrow-clearance die, this model should be positioned more strongly around small V-opening and thin-sheet precision bending, rather than interference avoidance.

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40 Ton/m Load Capacity

This model has a rated load capacity of 40 ton/m.

Because V8 is a relatively small V-opening, required bending force can increase compared with a larger V-opening for the same material thickness.

Therefore, bending-force calculation is especially important when using small V dies.

The actual forming force depends on:

• Material type
• Sheet thickness
• Material tensile strength
• Bending length
• V-opening
• Punch geometry
• Required angle

The bending force must remain within the rated capacity of the upper punch, lower die, and press brake machine.

For thicker material or higher-force applications, a larger V-opening or reinforced lower die may be more appropriate.

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Product Details & Manufacturing Quality

The lower die is manufactured from 42CrMo alloy steel, providing strength, toughness, and durability for repeated industrial bending operations.

The V-opening and critical working surfaces are precision machined to maintain:

• Accurate V geometry
• Consistent material support
• Stable tool alignment
• Repeatable bending results

For a small V-opening such as V8, machining accuracy is especially important because even small dimensional deviations can affect bend radius, bending force, and final part consistency.

The combination of:

V8 Opening + 84° Angle + 20 mm Width + 40 Ton/m Capacity

makes this die particularly suitable for precision thin-sheet and small-flange bending applications.

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Standard & Fully Customizable TRUMPF Type Lower Dies

We manufacture both standard TRUMPF Type lower dies and fully customized press brake tooling.

The configuration shown on this page represents only one available design. Tool dimensions and mounting structures can be modified according to the customer's machine and bending requirements.

Customization options include:

• V-opening
• Die angle
• Overall height
• Working height
• Overall width
• Working length
• Segmented lengths
• Bottom mounting structure
• Centerline position
• Special relief geometry
• Reinforced tooling structure
• Machine-specific mounting dimensions

We can also manufacture corresponding tooling structures for:

• WILA Type
• LVD Type
• AMADA Type
• BYSTRONIC Type
• Other customer-specified press brake systems

Customers can provide their workpiece drawing, material type, material thickness, press brake information, existing tooling drawing, or required bending result, and our engineering team can provide a free tooling design and bending-solution proposal.

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Free Tooling Design for Small V-Opening Applications

Selecting a small V-opening requires more careful evaluation than simply choosing the smallest available die.

For thin-sheet and small-flange applications, WYS Machinery can evaluate:

Material Thickness
→ Required Inside Radius
→ Minimum Flange Length
→ Required Bending Force
→ Punch Geometry
→ V-Opening Selection
→ Final Tooling Combination

This helps ensure that the tooling provides the required bend while avoiding excessive force or unsuitable part geometry.