Bicycle ERW Steel Tube Bending Machine, High‑precision Bending Equipment For Bicycle Frame ERW Welded Steel Pipe Mass Production
News 2026-08-25
ERW electric‑resistance welded steel tubes are widely adopted for bicycle frames. Compared with seamless tubes, ERW steel tubes bring obvious cost advantages for bicycle manufacturers. Nevertheless, the welding seam is a critical weak point during bending. When processed by general bending machines, ERW tubes often suffer seam cracking, tube collapsing and wrinkling. Damaged seams on frame components will bring hidden fracture risks under riding load, resulting in high scrap rate and after‑sales risks for manufacturers.
The Bicycle ERW Steel Tube Bending Machine realizes targeted technical iteration for ERW welded pipe characteristics. Its CNC system integrates special‑purpose bending modules for welded tubes. Users can set welding‑seam positioning angles, so that seams can avoid heavy‑extrusion zones in bending progress to greatly reduce cracking risks. Optimized clamping dies, anti‑wrinkle dies and follow‑up dies evenly distribute stress on thin‑wall ERW tubes, effectively preventing flattening and wrinkling and protecting welding seam integrity.
The machine supports 3D programming and 3D drawing import. It realizes multi‑segment continuous spatial bending for frame main tubes, down tubes, top tubes, rear fork tubes, handlebar tubes and seat support tubes. Massive parameter files of different bicycle models can be saved inside the system. Fast model change‑over is realized by one‑click program loading, cutting debugging time greatly and adapting to both multi‑variant small‑batch and large‑volume orders.
Built with heavy welded frame and stress‑relief aging treatment, the machine runs stably in long‑time continuous production without shaking, ensuring consistent bending angle and radius for bulk ERW tube products. It supports various sizes of ERW round tubes, covering thick mountain‑bike frame tubes, thin lightweight road‑bike tubes and high‑strength e‑bicycle frame pipes. Fully‑automatic servo feeding, servo rotation and auto‑bending reduce manual errors, improve qualification rate and cut raw‑material waste.
This machine is popular among bicycle‑part factories and OEM bicycle manufacturers for producing frames and structural pipes for mountain bikes, road bikes, city bikes and e‑bikes. Facing rising raw‑material costs, reliable ERW tube bending equipment enables manufacturers to adopt cost‑effective ERW welded steel tubes while maintaining product quality, strengthening their competitiveness in global bicycle supply chains.
