These are CGS cylinders that have concentric grooves available at the end of the rod for improving load grip. Those models that have more than 30 tonnes of weights are equipped with lifting eyelets for making them portable. Cylinders that weigh more than 50 tonnes are of plunging type and are also equipped with devices for preventing over stroke. There is a coloured zone on the rod that becomes visible 10mm before the ending of piston stroke. All these models can easily operate with offcentred load with nominal capacity of 8 percentage.