Designed for easy installation and running. Suitable for installation in any guide rail thichness from 8-16mm. The high capacity of P+Q (upto 1492 +/- 7,5% Kg), and lifts speeds of a 1,5 m/s. Ample moving space (5mm) between roller and guide rail. Smoth braking surface, which does not produce rubbing and wearing of the guide rail in the life of the lift. Reduced dimensions. Allowing installation inside longitudinal beams of 140 mm.