The Robertson series 71-B Pulley/Trolley is a fully rebuildable platform highly recommended for commercial applications. The design is made up of all steel components including the sheave, ball bearings, axles, and side plates. The sleek and simple design is made to move a person down a 3/8” - 1/2” cable safely at speeds up to 65mph.

Qualifications:

• Meets NFPA 1983-2012 pulley performance requirements of general use

• Minimum 3 Sigma breaking stregth

• Meets & Exceeds ANSI/ACCT standards

• Independent test rated to 19,000lbs.