shophoist easy installation and maintenance standard protector overload device 10-pocket,oblique lay liftwheel for smooth chain operation, constant chain speed and reduced chain wear nema 4, industrial-rated control stati......shophoist easy installation and maintenance standard protector overload device 10-pocket,oblique lay liftwheel for smooth chain operation, constant chain speed and reduced chain wear nema 4, industrial-rated control station gear train lifetime lubricated with non-oxidizing grease alloy load chain for smooth operation and maximum chain life thermally-protected hoist duty motor dual brake system - d.c. plus regenerative rugged cast aluminum alloy hoist frame small, compact design for commercial applications totally enclosed, non-ventilated hoist frame protects the motor from environmental contamination optional impact-resistant chain container is available rigid latch style upper hook prevents tangling of power cord precision bearings used throughout the hoist hardened forged steel latch-style lower hook rotates 360: true vertical lift lifetime warranty