QH-12024GH 12m 240mm Chuck 20000W Heavy Duty Tube Laser Cutting Machine The QH-12024GH is a heavy duty tube laser cutting machine built for long and thick wall steel tube. A 12 metre loading length and 240mm large chuck handle full stock lengths without re-clamping, while the 20000W laser source cuts thick wall pipe at production speed. Optional water-assisted slag removal can be specified to flush molten dross out of the tube bore, so parts go from the machine to welding