:: BALANCED SPUR GEAR HAND CHAIN HOISTS ::
FRAME :
Rugged steel frame shaped to occupy minimum headroom, ensures permanent 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 hoist on single fall of chain, bottom hook rotates on balls housed in a cross head swivel. For chain hoists with 2 falls the bottom hook rotates on balls housed in hook holder & is supported by bottom block 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 hoists with two falls are fitted with needle rollers.
LOAD CHAIN :
Alloy steel Grade 80 to international standards. All chains 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 loads.
GEARS :
All gears are accurately machine cut from alloy steel and case hardened to ensure long life.
BEARINGS :
Load wheel mounted on needle 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, a 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.
HAND CHAIN WHEEL :
Hand chain wheel having bore with multistart threading and pockets accurately cast to receive calibrated hand chain. Hand chain wheel cover prevents chain from snagging and fouling.
LUBRICATION :
Totally enclosed gear case is packed with sufficient grease during assembly.
TEST :
BRAD chain hoist are tested for 50% overload at works in support of which test certificates are issued.
:: FEATURES ::
GENERAL:
ACTIVE Speed reducers are manufactured in different types and sizes and ratio in adopter types as well as in solid foot mounted type and vertical flange mounted type of industrial requirement. ACTIVE speed reducers are of robust, efficient and reliable due to its
standared design and constructions. ACTIVE speed reducers are available in a range from 28.60 mm to 431.80 mm (1 1/8" to 17")
centre distance with ratio of 5:1 to 70:1 of reductions.
GEAR HOUSING :
Gear Housing of ACTIVE speed reducer is made of close grain cast iron material with maximum cooling fins on both sides with maximum surface are
coverd to atmosphere for improved efficiency. Bearing housing are perfectly bored to achived proper alignment. The housing is totally dust proof and oil tight.
WORM :
The Worm of ACTIVE speed reducer is solid with shaft it means of single piece made of high graded alloy steel, accurately generated, hardened, ground and polished.
WORM WHEEL :
The Worm Wheel of ACTIVE speed reducer is made of cast phosphorous bronze, on cen tre cast iron boss, which is pressed and keyed on the ground and polished high graded alloy steel made shaft which can permit high torque and bending load. The teeth of worm wheel are accurately hobbed on "Gear Hobbing Machine" by specially made as worm diameter Hobbed Cutter.
OIL SEAL :
Oil Seal ( FANNER Make "Pionior" Brand ) are used of superior quality to ensure oil tight.
BEARINGS:
The Worm & Worm Wheel shaft are supported on the Ball or Roller Bearings of standard make of ample capacity to take rotating and thrust load.
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