rak-40N with start-stop function

Safer working thanks to the start-stop function – the rak-40N® drain and sewer cleaning machine

The rak-40N® is regarded as the all-round workhorse among drain cleaning machines. The basis for that is the external clamping jaw system, which lets the jaws be changed in a matter of seconds. The external jaws also make room for a continuous, one-piece drive shaft inside the machine, through which the cable is guided. Neither moisture nor dirt can travel along the rotating cable into the interior of the rak-40N®.

How the start-stop function works

On a conventional drain cleaning machine you select the direction of rotation at the switch, and from then on the shaft turns continuously. The clamping lever only decides whether the jaws grip the cable or not – the shaft itself keeps running, even when you release the lever.

On the rak-40N® the switch merely presets the direction of rotation. The shaft stays still at first. Only when you press the clamping lever, so that the jaws grip the cable, does the drive start up. Release the lever and the shaft stops.

The drive therefore turns only while you actively call for it. That avoids idling between working steps and keeps the machine at a standstill during every pause.

Thanks to this design, the rak-40N® runs on permanently lubricated ball bearings that make later re-greasing unnecessary. The motor built specifically for the rak-40N® offers high starting and breakdown torque, which keeps the machine steady in operation. The shaft driving the cable turns at 670rpm, placing the rak-40N® among the high-speed drain cleaning machines – an advantage in particular when working with chain knockers.

The drive lever on the longitudinal axis can be locked in place and then serves as a carrying handle, which makes the machine easier to move.

The rak-40N® is used in pipes from 30 to 150mm with 16mm and 22mm cables. The optional adapter drums and adapter hoses also allow 8mm and 10mm cables to be run, opening up smaller pipe diameters as well.

Technical data

• Machine: splash-proof, radio-interference suppressed, with start-stop function
• Motor: 0.75kW / 1hp, 230V / 50Hz, VDE 0530
• Cables: suitable for 16mm and 22mm, with optional adapter also 8mm and 10mm (adapter and cables not included in the scope of delivery)
• Max. working length: approx. 70m with 22mm cables
• Working range: 30–150mm, less with smaller cables
• Mains cable: 5m, oil- and acid-resistant
• Bearings: permanently lubricated ball bearings
• Speed: 670rpm
• Housing: cast aluminium frame with impact-resistant plastic side covers
• Dimensions: LxWxH 530mm x 200mm x 500mm
• Weight: approx. 24kg

Product safety information

Always wear suitable gloves and safety goggles when cleaning drains, to protect yourself from waste water, and follow the enclosed instruction manual.