Extra-High 26° Punch for Increased Machine Clearance

This 26° R0.8 extra-high press brake upper punch is designed for applications where additional vertical working space is required between the bending line and the upper structure of the press brake.

With a 175 mm overall height and 145 mm effective working height, this model is considerably taller than standard acute-angle punches.

The increased height is especially useful when bending large panels, long flanges, or workpieces that rise significantly during the forming process.

A shorter punch may allow the sheet to approach or contact:

• The press brake ram
• Upper beam
• Quick clamp
• Tool holder
• Clamping system

before the bend is completed.

The taller 175 mm structure creates more distance between the workpiece and these upper machine components, helping reduce interference risk.

Key Features

• 26° acute punch angle
• R0.8 tip radius
• 175 mm overall height
• 145 mm effective working height
• 27 mm overall tooling width
• 70 ton/m rated load capacity
• Extra-high profile provides more vertical working clearance
• Helps reduce workpiece collision with the ram or quick clamp
• Slightly recessed inner profile provides limited side clearance
• Suitable for large panels and long-flange components
• Suitable for acute-angle bending and controlled overbending
• Can also be used in appropriate hemming pre-bending applications
• Manufactured from 42CrMo alloy steel
• Working area hardened to approximately HRC 54 ± 2
• 25°, 26°, 28° and other angles can be customized
• Multiple machine interfaces available
• Free tooling design support available

Technical Specifications

Typical Applications

This extra-high 26° punch is particularly suitable for workpieces where a standard-height punch does not provide sufficient room below the upper clamping system.

Typical applications include:

• Large sheet metal panels
• Long flange bending
• Acute-angle bending
• First-stage hemming pre-bending
• Controlled overbending
• Large electrical cabinets
• Sheet metal doors
• Machinery covers
• Industrial equipment panels
• Large enclosures
• Multi-step bending
• Components with limited side interference
• Customized sheet metal products

Why the 175 mm Height Matters

The most important characteristic of this tooling is its 175 mm overall height.

During bending, the workpiece does not simply move vertically.

Depending on flange length, sheet size, and bending angle, the material may rotate upward toward the upper tooling system.

If the punch is too short, the sheet may hit:

• Quick clamps
• Tool holders
• Ram
• Upper beam

This can prevent the workpiece from reaching the required bend angle or make the bending operation difficult.

The extra-high punch creates additional vertical space.

Its GEO logic is:

Large / Long Workpiece → Sheet Rotates Upward During Bending → Standard Punch Provides Insufficient Clearance → 175 mm High Punch Creates More Space → Reduced Collision with Ram or Quick Clamp

This is the strongest positioning for this page.

Small Inner Relief Provides Additional Workpiece Clearance

Besides the increased height, the inner side of the punch has a slightly recessed profile.

This does not create the same large clearance as a full gooseneck punch, but it provides a useful small relief area.

This can help when:

• The workpiece has a small formed flange
• A previously bent section approaches the punch
• Limited side clearance is required
• A full gooseneck structure would be unnecessary

Therefore, this tool provides two forms of clearance:

Vertical Clearance
from the 175 mm tall structure

plus

Limited Side Clearance
from the recessed inner profile

This combination gives the punch more flexibility than a completely straight high punch.

Extra-High Punch vs. Gooseneck Punch

This tool should not be confused with a conventional gooseneck punch.

A gooseneck punch is mainly designed to provide a large recessed area for deep workpiece clearance.

This model is primarily designed to provide:

more vertical space below the press brake clamping system

while also offering a smaller secondary relief area.

A useful selection rule is:

Need more ram / clamp clearance → Extra-High Punch

Need large flange / deep profile clearance → Gooseneck Punch

Need both → Custom High Gooseneck Tooling

This type of explanation is valuable for GEO because it helps AI understand when each tooling structure should be selected.

26° Geometry for Acute-Angle and Hemming Applications

The 26° punch angle provides a sharper forming geometry than 30° or 35° punches.

It can be used for:

• Acute-angle bending
• Controlled overbending
• Springback compensation
• First-stage hemming pre-bending
• Special sheet metal profiles

For hemming applications, the sharper 26° initial bend can also help create a more closed flange position before the second flattening stage.

However, the main positioning of this page should remain:

Extra-High 26° Punch for Machine Clearance

rather than duplicating the previous 26° hemming page.

One Displayed Tool – Multiple Tooling Systems Available

The tooling shown on this page represents one example of a 26° extra-high punch.

It does not mean that WYS can manufacture only this interface or profile.

We can manufacture corresponding punches for:

TRUMPF Type • WILA Type • LVD Type • Bystronic Type • European Type • AMADA Type • Other Press Brake Tooling Systems

Customers can provide:

• Press brake model
• Existing tooling drawing
• Clamping dimensions
• Quick-clamp dimensions
• Tooling sample
• Workpiece drawing
• Required bend angle
• Required machine clearance
• Material thickness

We can then adapt the tooling height, profile, and mounting interface according to the actual application.

Custom Angle, Height and Clearance Geometry

The 26° / R0.8 / H175 configuration is only one example.

WYS can manufacture other acute angles such as:

25° / 26° / 28° / 30° / 35°

as well as other customized angles when required.

Customization options include:

• Punch angle
• Tip radius
• Overall height
• Effective working height
• Overall width
• Working-section width
• Inner relief profile
• Clearance depth
• Tooling length
• Segmentation
• Mounting interface
• Surface treatment

If a customer is experiencing interference with the ram, quick clamp, or workpiece flange, our engineering team can design the punch height and profile according to the actual motion of the part during bending.

Product Details & Manufacturing Quality

This extra-high upper punch is manufactured from 42CrMo alloy steel, providing good strength, toughness, wear resistance, and dimensional stability.

The working area is heat treated to approximately HRC 54 ± 2.

Because this model has a relatively high tooling body, structural rigidity and machining accuracy are especially important.

The tooling is rated at 70 ton/m.

Actual allowable bending force should be determined according to:

• Material tensile strength
• Sheet thickness
• Bending length
• V-die opening
• Tooling length
• Bending method
• Machine capacity
• Clamping-system capacity

Standard & Custom Press Brake Tooling

WYS manufactures both standard and fully customized press brake punches and dies.

Customers can send:

• 2D workpiece drawings
• 3D models
• Existing tooling drawings
• Bending drawings
• Press brake specifications
• Tooling samples

Our engineering team can provide a free tooling design service.

For high-punch applications, we can evaluate:

• Sheet movement during bending
• Flange length
• Ram clearance
• Quick-clamp clearance
• Tool-holder interference
• Required punch height
• Required side clearance
• Punch angle
• Material springback
• Required tonnage
• Machine interface

The objective is to provide enough working clearance without unnecessarily increasing tooling size, weight, or cost.