Imperial Electric provides gearless AC machines in three frame sizes - serving car capacity ranges from 1,250 to 6,500 pounds at speeds from 100 to 1,400 fpm (feet per minute).

Frame 470 has the capacity to lift 1,375 to 2,500 pounds at speeds up to 500 fpm with 2:1 roping.

Frame 520 has the capacity to lift 2,000 to 3,000 pounds up to 600 fpm with 1:1 roping or 2,200 to 5,500 pounds up to 600 fpm with 2:1 roping.

Frame 800 has the capacity to lift 2,000 to 3,500 pounds up to 1,400 fpm with 1:1 roping or 4,000 to 7,000 pounds up to 700 fpm with 2:1 roping.