Rebar Bending and Cutting for Bridges and Tunnels

In bridge and tunnel construction, rebar bending and cutting demand precision, strength, and adaptability. From massive main girders to curved tunnel linings, every bar must meet exact specifications. Gongda, a trusted exporter based in Hefei, Anhui, China, offers heavy-duty machinery engineered for these challenging tasks.

Handling Large Diameters and High Strength Rebar

Bridges and tunnels often require rebar up to 50 mm in diameter, with high yield strength. The GWH50CG Rebar Arc Bending Machine is built for this. It bends bars up to 50 mm, producing large-radius arcs essential for tunnel arches and bridge approach curves. For enhanced control and efficiency, the upgraded GWH50CZN adds a frequency-converted drive, allowing smooth speed adjustments to match different steel grades and bending angles.

For cutting, the GQ70A Rebar Cutting Machine delivers a 160-ton shear force, handling A3 round steel up to 70 mm. This power ensures clean cuts even in dense rebar mats, reducing prep time on site.

Precision Arc Bending for Tunnel Segments

Tunnel linings and support arches require accurate, repeatable arcs. The SKDZWH-36 CNC Rebar Arc Bending Machine takes precision further. It handles bars up to 40 mm with servo control and a touch-screen PLC, letting operators program multiple bend sequences. This is ideal for producing identical curved segments for tunnel sections, minimizing material waste and labor.

For cutting longer bars into manageable lengths, consider pairing the CNC bender with a band saw like the GD-350ZD (not listed in this article's product data, but available in our range). However, for heavy-duty shearing, the GQ70A remains a robust choice.

Choosing the Right Equipment for Your Project

Selecting machinery depends on your rebar diameter, bending radius, and production volume. For large-diameter arc work, the GWH50CG or GWH50CZN are reliable. For high-volume, automated precision, the SKDZWH-36 offers CNC flexibility. Cutting capacity should match your bending feed—consider the GQ70A for bars up to 70 mm.

Evaluate your typical rebar sizes and daily output needs. Our team can help you match the right combination. All Gongda machines are factory-tested and supported by our export team in Hefei.

Ready to upgrade your bridge or tunnel rebar processing? Contact us on WhatsApp or email export@gongda.com for a tailored quote.