• Ribbed and sealed monobloc construction in aluminium alloy. • Stainless steel rope. • Adjustable capacity by means of a worm screw. • Auxiliary safety suspension. • Safety device against load dropping due to the spring breakage (>3kg). • Centrifugal safety device. • Upper rotary suspension with safety hook. • Locking device to block the load at any height. • Adjustable stroke limiting device. • Taper drum rotating on ball bearings. • Cable guide in antifriction material. • Rotary upper hook with ball bearing. • Lining up upper hook. • Visible cable for inspection. • Inert spring drum assembly. • Spring break. Weight Kg: 28,46 Stroke mm : 2500