What does a one-stroke hat channel forming tool produce?

It forms a shallow hat-shaped or stiffening-channel section with a center web, two side walls and two outward flanges. In the COVO application shown here, four bend lines are created during one controlled press brake stroke.

Why use a dedicated hat channel tool instead of standard press brake tooling?

A dedicated tool locates the blank once and controls all four bend lines as one matched profile. For a stable repeat part, this can reduce handling, re-gauging and dimensional variation compared with making the bends in separate setups.

Can one hat channel tool form different sheet thicknesses?

Only when the approved design explicitly allows that range. Channel depth, wall position, radii, shut height, clearance and required force all depend on the material and thickness, so many high-accuracy applications use a dedicated or narrowly qualified setup.

How is the press force for a channel forming tool calculated?

The load must be evaluated from material strength, thickness, working length, number and radius of forming zones, contact sequence and the actual tool geometry. A standard air-bending tonnage chart is useful context but is not sufficient by itself for a matched forming die.

Can COVO make the tool for AMADA, TRUMPF, WILA, LVD or BYSTRONIC-style machines?

The mounting interface can be engineered for common press brake systems, but compatibility is confirmed from the machine model, clamping dimensions, available open height, stroke, load rating and the complete upper-and-lower tool stack.

What information is needed to quote a custom hat channel tool?

Send the finished section drawing or 3D file, material grade, thickness, bend length, tolerances, visible-surface requirements, annual quantity, press brake make and model, tooling interface, available height and any sample or problem photos.

COVO KNOWLEDGE

One-Stroke Hat Channel Forming Tool: Four Bends in One Cycle

Published: 2026-08-06

See how a custom press brake hat-channel tool forms four bend lines in one stroke, where it works best and what data COVO needs to design it.

One-Stroke Hat Channel Forming Tool: Four Bends in One Cycle

A one-stroke hat channel forming tool creates a shallow channel or stiffening profile with four bend lines in one press brake cycle. The blank is located once, a broad upper forming block drives it into a matched lower cavity, and the tool controls the center web, two side walls and two outward flanges as one connected section. The COVO tool shown in the supplied production footage is a dedicated forming set rather than a conventional punch and V-die. Its purpose is not to replace standard air bending for every job. It is designed for a repeat profile where multiple separate bends would add handling, datum changes, accumulated error or clearance problems. Production close-up of the COVO upper forming block, lower cavity tool and sheet positioned before the forming stroke. Direct engineering answer: the geometry visible in the footage is best described as a one-stroke hat-channel or stiffening-channel former. The finished sample contains four formed corners. Exact load, permissible material range, internal die components and final tolerances must be confirmed from the released tool drawing and production trial. What profile does this special press brake tool form? A hat channel has a center web, two approximately parallel walls and two flanges extending away from the channel. Its section resembles a shallow top hat when viewed from the end. Depending on orientation, the same geometry may also be described as a formed stiffener, mounting channel, rail or recessed reinforcement. The profile in the COVO footage is formed from a flat blank. Instead of creating each corner with a separate standard bend, the matched tool develops the complete section during one closing movement. The result is especially relevant when the distance between the two walls, the web width and the relationship between both flanges must remain consistent. Finished sample from the production video: four bend zones form the center web, two walls and outward flanges of the hat-channel section. Structural analysis of the tooling Wide upper body with a defined working projection The upper tool uses a wide, rigid body instead of a slender general-purpose punch. Near its working edge, the geometry narrows into the forming region that enters the lower tool. This construction provides support behind the active profile and gives the designer enough material to manage strength, deflection and the mac

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