Two-post lift now come with three-stage arms Rotary introduces three-stage arms as options for its SPO10 and SPO12 symmetrical two-post lifts. The three-stage arms both extend and retract farther than two-stage arms, providing a greater overall pick-up envelope. Both the front and rear arms of the SPO10 and SPO12 are three-stage models, and are equipped with thread-up adapters that can be adjusted incrementally, for maximum flexibility. These adapters can be used alone or in conjunction with stackable adapters. The SPO10 has a rated lifting capacity of 10,000 lbs., and the SPO12 can lift up to 12,000 lbs.