ELECTRIC CHAIN HOIST
FRAME
Rugged steel frame shaped to occupy minimum headrooms, ensures permanents alignment of spindles and gears, encloses and protects the load chain wheel. Detachable steel cover totally encloses the gears. Hand chain wheel cover protects the hand chain wheel and brake unit.
HOOKS
Hooks are of forged alloy steel. Top hook swivels on balls housed in cross head. For chain, bottom hook rotates on balls housed in a crossed head swivel. For chain hoists with 2 falls bottom hook rotates on balls housed in hook holder & is supported by bottom black frame.
SAFETY LATCH
Every bottom hook is equipped with a safety latch – a safety latch for top hook is an optional attachment.
LOAD CHAIN WHEEL
Made from spheroidal graphite iron, has pockets accurately cast to receive calibrated load chain. Bottom block wheel for chain hoist with two falls are fitted with needle rollers.
LOAD CHAIN
Alloy steel Grade 80 to International standards. All chain are electrically resistance welded & heat treated to give ductility, toughness and wear resistance. Accurately calibrated, pitched and polished to ensure free movement. Each link is tested to twice the safe working load and can withstand shock load
GEARS
All Gears are accurately machine cut from alloy steel and case hardened to ensure long life.
BEARINGS
Load wheel mounted on needle and rollers housed in bush bearing thus reducing effort required for hoisting.
LOAD BRAKE
The precision self actuating screw disc type mechanical brake engages Instantly and provides uniform performance with rated capacity. When lowering, load is under perfect control at all times, that is exceptionally valuable where accurate movement is demanded for spotting loads. Ratchet wheels are hardened and surfaces ground to maintain parallelism, with adequate thickness to engage properly with pawl.
LUBRICATING
Totally enclosed gear case is packed with sufficient grease during assembly.
TESTING
The chain hoists are tested for 50% overload at works in support of which test certificates are issued.
