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https://www.jinggongmachine.com/products/pipe-bending-machine.html

The cnc pipe bending machine for sale is used to make a circle, curve, or spiral for workpieces. It is widely used in such fields as the petroleum industry, chemical engineering, hydroelectricity, shipbuilding, steel structure, machine making and so on. 
One machine can not only produce one size, it depends on the machine designing. Our pipeline bending machine is a piece of special equipment designed for section bar producers. The automatic pipe bending machine can be used to bend the section bar into round, arc or other shapes of workpieces. 

Parameters Of  china pipe bending machine
ItemParameters
Bending-resistance modules of section270-2000(cm³)
Max. Resistance of material245Mpa(asQ235A)
Outward bending for channel steelModel of channel steel: 50
Min. Bending diameter: φ3500mm
Inward bending for channel steelModel of channel steel: 40
Min. Bending diameter: φ3500mm
Steel tubeMax. Section: φ426mm×16mm
Min. Bending diameter: φ15000mm
Min. Section: φ90mm×8mm
Min. Bending diameter: φ3000mm
Flat bending for band steelMax. Section: 200mm×60mm
Min. Bending diameter: φ3000mm
Upright bending for band steelMax. Section: 500mm×75mm
Min. Bending diameter: φ4800mm
Working speed2-3m/min
Motor powerHydraulic pump: 22kw
Supporter motor: 0.75kw×2  0.18kw×2
Dimension4880mm×3200mm×2000mm(length×width×height)
Total weightAbout 36000 kg
Or you can buy Jinggong sandwich panel machine.