Rebar Bender Machine Guide: GW40 / GW45 / GW50

Published by Sell from China · Updated 2026-08-20

Rebar benders bend steel bars into the shapes needed for concrete reinforcement; the right model depends on bar diameter, volume and whether you need automatic or manual operation.

What rebar benders do

Rebar benders bend steel reinforcing bars to angles for foundations, beams and columns. They are rated by the maximum bar diameter they can bend, typically 40mm, 45mm or 50mm.

GW40 vs GW45 vs GW50

  • GW40: bends up to 40mm bar, the standard choice for most sites
  • GW45: handles up to 45mm, a step up for heavier work
  • GW50: up to 50mm for large infrastructure projects

Automatic vs manual

Automatic rebar benders set the angle digitally and run repeat bends quickly, which saves labor on high-volume jobs. Manual benders cost less and suit occasional work.

Choosing for your volume

For a fabrication shop with daily output, an automatic model pays for itself. For small or occasional jobs, a manual bender keeps the investment low. See the full machinery range for options.

Get a recommendation

Tell us your maximum bar size and daily volume, and we will match the right rebar bender.

Frequently Asked Questions

What size rebar can a GW40 bend?

Up to 40mm diameter, which covers most construction work.

Should I choose automatic or manual?

Automatic for high volume and repeat angles; manual for low volume and lower cost.

Do you export benders?

Yes, with CE and export documentation.

Need factory-direct pricing?

Tell us your requirements and get an FOB or landed-cost quote for mini excavators and other machinery.

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