The swivelling-jib-crane SK4 has a load capacity of 75 kg and an operating radius of 4 m. With shorter arms (less operating radius) a higher load is possible.

The jib consists of an inner and an outer arm, made of aluminium hollow profiles. The arms are connected by a double joint with roller bearings. The outer arm is able to swivel by 180° at the inner arm due to the double joint. The area swept by the jib is 13.5 m² and can fully be used – there is no “dead” zone.

The pneumatic drive and the control are positioned at the rear end of the jib-crane, close to the pivot bearing, which reduces the height of construction and the mass moment of inertia. The cable is guided horizontal from the drive to the front end of the jib and there redirected downside to the gripping device.