KMT's waterjet cutting heads - Reliability under extreme conditions
Key focus on maintenance friendliness
How waterjet cutting heads work
The cutting water is transported through special high pressure tubing, which is partially flexible, allowing for the movements of the cutting head. The head consists of a pneumatically controlled needle valve and a nozzle tube, at the end of which, a special conus fits a jewel orifice is (most commonly diamond or sapphire) mounted with a special nut. It is in this very nozzle that velocities of Mach 2-3 are achieved.
For abrasive applications, beneath the water orifice, a special abrasive head is used for mixing the sand with the high pressure water. The movement of the cutting head is usually controlled by a CNC controller of the cutting table.
Leak holes protect the nozzle body, nozzle tube and nozzle nut from damages and indicate clearly which connection has to be tightened or which seal has to be replaced. The unique design allows for replacing the seal in under 5 min.
The strong economical performance of KMT Waterjet's abrasive cutting head, in addition to easy maintenance, and reliability have yet to matched. The simple design enables tool free nozzle replacement in a matter of seconds – time consuming centering procedures are a thing of the past. As the lifetimes of the three main wear parts differ from each other, they are designed to be replaced separately. The ACTIVE AUTOLINE™ I is a complete unit including the nozzle valve and nozzle tube.
