Built Up Hoist Features

Hoist Limit Switches

Rotary geared control circuit, upper and lower limit switch, automatically de-energizing hoist drive at field set extremities of hook travel, plus a weight operated control circuit upper limit switch.

Trolley Wheels

Precision, 1050 steel, double flange with hardened treads and flanges to 320 Brinell. Double spherical, roller-type bearings in modified "MCB" capsules.

Trolley Frame

Fabricated steel, all welded frame, precision bored to ensure consistent true tracking crossbridge operation. Heavy ribbed plate decking provides support of main Hoist-Trolley components. Upper sheave nest is serviceable from top side of main machinery deck. Rubber bumpers included on all corners of trolley.

Hoist Electric Brake

Foot-mounted, self-aligning floating shoe, A.C. thruster, 150% minimum, torque-rated, shoe-type electric motor brake. Brake wheel is mounted on reducer imput shaft.

Trolley Drive

All motors are 60 min., TENV. Class "H" insulation, with klixon, TENV motor with disc brake and helical gear reducer mounted on axle.

Hoist Motor

Foot-mounted, totally ensoled, 60 min. Class "H" min. insulation. Directly connected to hoist reducer via gear coupling.

Hook Block

All fabricated, steel-enclosed housing for maximum safety, with high carbon steel heat-treated 400 Brinell sheaves and roller bearing, forged steel hook with latch.

Drum

Fabricated steel all-welded construction supported on anti-friction bearings and furnished complete with left and right hand grooving for a true vertical plum hook lift.

Hoist Gear Reducer

Fabricated steel, horizontally split housing with through heat-treated (40-45) Rc alloy steel gearing and roller bearing mounted in cartridged. Weston type mechanical load brake up to 50 HP. Ace family of reducers vary from 40 HP to 50 HP.