Rack and Pinion Jacks

Hats off to such smooth lifting and high efficiency – in plant engineering, container construction, within the workshops or the building trade. For pulling and pushing, horizontal moving or vertical supporting of loads of up to 10 t. Precision guarantees long service life and this will result in cost saving. Only precisely machined racks and high quality gear parts are used – so optimum toothing quality can be achieved with the lowest possible material wear, resulting in low costs.

Only one jack is closing and opening the shutter in such a way – the Sluice gate jack SCH-W – the reliable one among the tested products. This is guaranteed by the spur gear with formed gearwheels, precisely milled crank gear, crank gear, medium and rack pinions… but unique: only Pfaff-silberblau has developed a spring-loaded safety crank which safely provides permanent pressure when required.

Cast aluminium crank with folding handle. Spring operated load pressure brake is silent in operation and weather-resistant, no ratchet required. 250mm radius for use on jacks up to 5000kgs capacity.

This crank is used with a double acting pawl assembly and is suitable for indoor applications. The crank is of cast steel with folding handle and incorporates two conical nylon or brass brake discs, dependant on duty, which act as a friction brake. Two versions are available both with 17mm square hole.

Similar to the SIKU crank this unit has a selector unit which allows either the raise or lower positions to be selected. The crank can either be turned through 3600 (as the SIKU crank) or operated in short ratchet type movements which is especially suited for use in confined spaces.