... chamfer for two ends of pipe The machine consists of headstock ,base, cutter-head,clamping device,supporting,carrier roller,hydraulic ... mechanism synchronously finish the approaching, clamping and processing working to the pipe. Except the approaching of sliding ... min15~8015~80Clamping type of pipe clamping deviceCombined clamping by two hydraulic oil cylindersCombined clamping by two hydraulic oil ...