TRUMPF Type V12 84° Narrow Clearance Single-V Press Brake Lower Die – 100 mm Working Height, 40 Ton/m

Key Features

• TRUMPF Type narrow clearance single-V lower die
• V12 die opening
• 84° die angle
• 120 mm overall height
• 100 mm working height
• 16 mm narrow load-bearing width
• Narrowed working section provides additional workpiece clearance
• Helps reduce lower-die interference with nearby flanges
• Suitable for previously formed and multi-step workpieces
• Particularly useful for compact and geometrically restricted components
• 40 ton/m load capacity
• Suitable for precision CNC press brake bending
• Manufactured from 42CrMo alloy steel
• Precision-machined V-opening and critical working surfaces
• V-opening, angle, height, width, load-bearing section, 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 V12 84° narrow single-V die is designed for applications where the required V-opening is only one part of the tooling requirement.

In many bending jobs, the external shape of the lower die is equally important because nearby flanges or previously formed sections may interfere with a conventional wider tool body.

Typical applications include:

• Precision sheet metal bending
• Multi-step bending
• Previously formed workpieces
• Components with nearby return flanges
• Narrow channels
• Box and enclosure components
• Electrical cabinet parts
• Compact machinery components
• Workpieces with closely spaced bends
• Complex sheet metal profiles
• Clearance-sensitive bending applications
• CNC press brake production

The 16 mm narrow load-bearing section provides additional surrounding space compared with wider lower dies and can improve access to geometrically restricted parts.

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16 mm Narrow Working Section for Additional Clearance

The defining structural feature of this model is its 16 mm load-bearing width.

The working section is narrower than a standard-width lower die, intentionally creating additional space around the forming area.

This design can be particularly useful when the workpiece has:

• Existing flanges close to the bend line
• Previously formed side walls
• Narrow internal channels
• Closely spaced bends
• Limited surrounding space
• Complex return geometry

With a conventional wider lower die, the tool body itself may collide with the workpiece before the next bend can be completed.

The narrowed section helps:

• Increase workpiece clearance
• Reduce tool-to-workpiece interference
• Improve access around the bend line
• Provide greater flexibility in bending sequence
• Accommodate complex or previously formed parts

For this reason, this model should be treated as a clearance-oriented V12 lower die, rather than simply another standard V12 profile.

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V12 Opening for Controlled Precision Bending

The V12 opening provides a practical small-to-medium V configuration for precision press brake bending.

In air bending, the V-opening affects:

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

V12 provides more forming space than V8 or V10 while remaining significantly more compact than V16, V20, or larger V-openings.

This can make it suitable for applications requiring a balanced combination of:

Compact Tooling Geometry + Precision Bending + Moderate V-Opening

The correct V-opening should always be selected according to material thickness, material grade, punch geometry, required radius, bending force, and finished workpiece dimensions.

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84° Die Angle for Springback Control

This lower die uses an 84° V angle.

The slightly acute geometry can provide additional forming range for applications where springback or controlled overbending must be considered.

The final finished angle depends on:

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

For this reason, die angle should be evaluated as part of the complete punch-and-die system rather than treated independently.

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40 Ton/m Load Capacity

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

Because the working section is intentionally narrowed to improve clearance, correct force evaluation is especially important.

The required bending force depends on:

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

The actual working force must remain within the rated limits of the:

• Upper punch
• Lower die
• Press brake machine

For applications requiring higher forming force, WYS Machinery can design wider or reinforced die structures while maintaining the required V-opening and clearance geometry.

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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, working edges, locating surfaces, and mounting areas are precision machined to maintain dimensional consistency.

For this model, particular attention is given to the relationship between:

V12 Opening + 84° Angle + 16 mm Narrow Working Section + 40 Ton/m Capacity

because the die must provide additional workpiece clearance without sacrificing the structural strength required for its intended application.

This makes the tool suitable for customers who need a compact and clearance-oriented lower die rather than a conventional standard-width V12 profile.

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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 dimensions shown on this page represent one available configuration only.

Customers can customize:

• V-opening
• Die angle
• Overall height
• Working height
• Load-bearing width
• Overall tooling width
• Working length
• Segmented lengths
• Bottom mounting structure
• Centerline position
• Clearance geometry
• Relief areas
• Reinforced structures
• 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 drawings, material information, existing tooling drawings, machine specifications, or required bending results, and our engineering team can provide a free tooling design and bending-solution proposal.

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Free Tooling Design for Interference and Clearance Problems

For complex workpieces, choosing the correct V-opening alone may not solve the bending problem.

A standard die may have the correct V12 opening but still interfere with the workpiece because the surrounding tool body is too wide.

For these applications, WYS Machinery can evaluate:

Workpiece Geometry
→ Bending Sequence
→ Interference Area
→ Required V-Opening
→ Required Clearance Width
→ Tooling Strength
→ Required Bending Force
→ Final Custom Die Design

This allows the die to be designed around the customer's actual workpiece instead of forcing the bending sequence to adapt to a standard tooling profile.