Import 3-Roller Bending Machine — Buy in wholesale FOB from Supplier in China

The 3-Roller Bending Machine from Comifo Duct Manufacture Machine Co. Ltd. is a powered sheet metal rolling unit available in three models: W750, W1300 and W1600, corresponding to maximum working widths of 750 mm, 1250 mm and 1550 mm. All models handle mild steel up to 1.2 mm thickness. The roller diameters are 63 mm for the W750 and W1300, and 72 mm for the W1600, with minimum bend diameters of 88 mm for the two smaller models and 100 mm for the W1600. The machine is pitched at HVAC duct fabrication shops and general sheet metal workshops requiring cylindrical, conical or arc-shaped profiles.

The three-roller configuration uses two driven pinch rollers and a top-adjustable bending roller, the standard kinematic layout for initial-pinch or double-pinch bending of thin-gauge ferrous sheet. Roller shafts are ground alloy steel, heat-treated to typical HRC 58-62 hardness for wear resistance. The frame is welded steel plate, stress-relieved to prevent distortion under rolling load. Electric drive is through a gearbox and motor arrangement, though the exact motor power and drive type are not stated in the source. Comifo Duct Manufacture Machine Co. Ltd. lists supply capacity at 10 sets per month, with shipment from Guangzhou or Shenzhen ports.

Buyers include HVAC contractors, ventilation duct manufacturers, automotive panel fabricators and general engineering shops. The W750 suits small ductwork and prototype work; the W1600 handles full-width spiral duct segments and large cylindrical tanks. When sourcing, confirm motor specification (kW, voltage, frequency), control type (manual, digital readout, or CNC back-gauge), roller material hardness certificate and whether cone-bending attachments are available. The 1.2 mm x 1550 mm capacity places this in the light-to-medium industrial class, not heavy plate rolling.

Comifo Duct Manufacture Machine Co. Ltd. is headquartered on Jianzhong Road, Tianhe Software Park, Guangzhou, Guangdong Province, China, postal code 510665. The company holds a harbor trust tier on the platform. Its response rate is listed at 0.00% with zero average response hours, indicating either a new listing or inactive response tracking. The company name signals specialisation in duct manufacture machinery, and the W-series 3-roller bending machine is consistent with that focus.

The Guangzhou location places Comifo within the Pearl River Delta manufacturing cluster, with access to Shenzhen and Guangzhou ports for export. The source provides no establishment year, factory floor area, employee count, revenue figure or client reference. Buyers should verify whether Comifo manufactures the W750/W1300/W1600 in-house or sources frames and rollers from subcontractors. Request a factory audit video, ISO 9001 certificate if claimed, and sample bend test reports before committing to an order. Direct technical discussion about roller crowning, shaft deflection and bearing specification will quickly reveal the supplier's engineering depth.