The Hammelmann Corp. Pipemaster is a manually operated, high-pressure hose rotating system. It is used to remove both soft and hard deposits from the insides of pipes and pipelines, including those with bends and vertical sections. A high-pressure supply hose is fixed between the pump and the rotary joint on the hose-rotating unit. A second hose is connected to the rotary joint and runs via the deployment unit into a protective hose leading to the positioning device at the work piece. The rotation of the second high-pressure hose around its longitudinal axis is affected by a chain drive from a pneumatic motor to the rotary joint. The rotation speed can be smoothly adjusted with throttle check valves. Actuating the control lever of the unit causes the hose to start rotating, which in turn produces the forward motion. The hose deployment unit is mounted on a sturdy base plate and includes the height-adjustable control lever to deploy or retract the hose. 800/783-4935; www.hammelmann.com.