The ACT-4 mast-climbing work platform uses the firm's advanced cylindrical technology for fast, smooth, and safe elevation of the platform. With a 4000-lb. capacity, the product is suited for specialized contractors like repointers and bricklayers. The platform can extend to nearly 47 ft. using cantilever and bridge sections. It reaches a height of 550 ft. using a ground base and has a lift speed of 16 per minute. It is simple to operate and requires minimal maintenance.