Rebar Arc Bending Machine (Upgraded)

Overview

The GWH50CZN Rebar Arc Bending Machine (Upgraded) is a heavy-duty, frequency-converted rebar bender built by Gongda (China Rebar Machinery, chinarebarmachinery.com) in Hefei, Anhui, China. The factory is rooted in the electromechanical works of Hefei University of Technology, giving the machine a genuinely engineering-led design lineage rather than a generic assembly-line origin.

This upgraded model handles rebar up to 50 mm in diameter and is designed for continuous arc bending — the kind of work required for tunnel ribs, bridge hoops, dome cages and large-radius curved reinforcement. A frequency-converted drive replaces conventional fixed-speed control, so the operator can match roller speed to bar diameter and bend radius instead of forcing the material through a single fixed rate.

Key Specifications Explained

• Maximum bendable rebar diameter: 50 mm — the upper capacity limit of the machine, suitable for large-diameter main reinforcement.
• Arc bending diameter: R500 and above / unlimited — the machine is not restricted to a fixed radius, so it can produce large-radius arcs and continuous curves.
• Drive wheel speed: 0–43 rpm — stepless, frequency-controlled output speed for controlled feed through the rollers.
• Drive wheel diameter: 270 mm; driven wheel diameter: 270 mm — matched roller geometry for stable, even bending pressure.
• Drive wheel height: 55 mm; driven wheel height: 60 mm — the working face dimensions that determine bar contact and grip.
• Motor: YD132M-4, 11 kW, 0–1650 rpm — a variable-speed motor paired with the frequency converter for smooth torque delivery under load.
• Voltage / frequency: 380 V / 0–50 Hz — standard industrial three-phase supply with variable-frequency operation.
• Dimensions: 1050 × 1020 × 1000 mm — a compact footprint for a machine of this capacity, easing placement in fabrication yards and precast plants.

Applications

The GWH50CZN suits rebar fabrication shops, precast concrete plants, tunnel and metro segment producers, bridge and viaduct contractors, and infrastructure projects requiring curved reinforcement at scale. Typical output includes tunnel arch ribs, circular column hoops, curved slab reinforcement, dome and silo cages, and large-radius bent bars where a standard bender cannot reach the required arc.

Why Buy This Model from Gongda

• Engineering heritage: factory rooted in the electromechanical works of Hefei University of Technology.
• Frequency-converted drive: variable speed control instead of fixed-speed bending, improving consistency across bar sizes.
• 50 mm capacity with unlimited arc radius: one machine covers both large-diameter and large-radius work.
• Export track record: machines shipped to Russia, Spain, Latin America, the Middle East, Southeast Asia and Africa.
• EAC certification available for buyers requiring Eurasian customs compliance.

Shipping, Certification & Support

Gongda ships FOB Shanghai, Ningbo or Qingdao, giving buyers flexible port selection based on destination and freight rates. EAC certification is available where required. Every machine carries a 12-month warranty backed by spare parts support. Sales and after-sales communication is available in English, Russian, Spanish, Arabic, French, Portuguese, German and Indonesian. For pricing, lead time or technical clarification, contact WhatsApp +86 193 9277 7259 or visit chinarebarmachinery.com.