Groove pulley

for cables

This pulley with electromechanical overload detection is a simple and robust device for many winch applications in all fields (construction, industry...). • - Easy installation • - Outdoor use – 10°C / +50°C. • - Electromechanical operation. Acts as a simple switch. IP67 contact. • - Setting range: 110 to 125 % of nominal load. • - Factory calibration. Use: • - The pulley can detect an overload in the wire rope thanks to a contact sensor (6 mm stroke). • - Bellow the nominal force, the pulley is held by one (or more) prestressed spring(s). Above this force, the pulley moves compressing the spring and contacting the sensor. • - The initial setting of the spring and the triggering force are set at the factory. • - The detection occurs between 110 and 125% of the nominal load. • - The trigerring depends on the effort between the two falls (one of which being always in line with the spring). • - If this angle is 90°, the triggering force is compared to the force in one fall. • - If this angle is 180°, the triggering force is compared to the force in two falls. • - Acceptable assembly for 90 ° = from 85° to 95°, for 180 ° = from 160° to 200 °. These wire ropes angles must be respected in order to have an accuracy greater than 95 %. Technical characteristics Fitted pulleys 100 kg Thread diameter mm - 133 Wire rope strength (angle b/2 falls) kg, 180° - 50 Wire rope strength (angle b/2 falls) kg, 90° - 100