Pipe bender Bahco Supertube 540 — manual flat-to-round tube bender, model 540

Bahco Supertube 540 is a manual flat-to-round tube bender designed to reshape flattened metal tubing back to a round profile. Suitable for workshop environments and on-site maintenance, the tool provides controlled mechanical leverage to restore sections of pipe or tubing that have been deformed during transport, storage or installation. The compact, hand-operated design allows use where powered equipment is impractical or access is limited.

Advantages

The Supertube 540 offers precise mechanical control for converting flattened tube sections to their original round form without heat. Its manual operation ensures low noise, no power requirement, and straightforward setup. Constructed for repeated use in professional settings, the tool reduces the need to replace damaged tubing by restoring serviceable geometry. The design emphasises stable support of the tube during bending to minimise further deformation.

Suitable for

• Restoring flattened metal tubing in workshop repair and fabrication
• On-site maintenance where access or power is limited
• HVAC, plumbing and automotive pipe repair tasks involving deformed tubes
• Metalworking shops performing maintenance or prototyping with round tubing

Key specifications

• Operation: manual, hand-operated leverage mechanism
• Function: converts flattened or ovalised tube sections back to round profile
• Application: suitable for steel and non-ferrous metal tubing commonly used in maintenance and fabrication
• Use environment: workshop and field use with limited access to power tools
• Form factor: compact, portable tool designed for single-operator handling

How to use

Position the flattened section of tube in the tool’s support and align the bending elements with the deformed area. Apply steady hand pressure to the lever to gradually reshape the tube, checking the profile frequently to avoid over-correction. Continue incremental adjustments until the tube regains a satisfactory roundness. For long flattened sections, work progressively along the length of the tube, performing repeated passes as needed.

Usage recommendations

Inspect the tube material and wall thickness before use to ensure the manual bender is appropriate for the application. Use clamps or supports to stabilise long pipes during operation. After reshaping, verify the tube for cracks or thinning at the deformed area and replace the pipe if structural integrity is compromised.