derrick crane machine manufacturing & exporters in india rajasthan udaipur

SUPPORT INFO +91-9828056125

Manufacturers and Exporters of : MARBLE & GRANITE PROCESSING MACHINES

DERRICK CRANE

MODEL: DC (20 TONS To 50 TONS)

Rational structure i e boom, Central mast and refers are made out of Heavy duty structural steel frame work duly stress relived. The base of central mast is fixed to the winch assembly which in turn rotates on specially designed Thrust Bearing anchored to the Central Foot by means of bolts grouted in Concrete Foundation of rock. The winch assembly comprises of special crane duty motor connected to helical speed reducers and reduction gear box dipped oil bath and gear meshed are coupled up to a grooved steel drum. Electro hydraulic brakes are used to central the smooth lifting of weight. The winch assembly rotates on specially designed thrust bearing by mean of multiple step down gears built into the winch foot. Wire rope is of 6 x 37 construction 16mm in dia. Electric operations are controlled with Push Button Control unit Independent from the position of winch assembly. Limit Switches for Rotation Boom lowering lifting & load lowering and lifting are provided to ensure accident free operation.

TECHNICAL SPECIFICATION
Metric Tons	Swing Speed	Boom Lifting Speed	Weight Lifting Speed	Wire Rope	Boom Lifting Power	Weight Lifting Power	Swing Power	Total Installed Power
30	1.2 Mtrs./Mins.	1.79 to 7.1 Mtrs./Mins.	2.77 to 11.02 Mtrs./Mins.	18 MM	18.5 KW/25 HP	18.5 KW/25 HP	3.7 kw / 5 HP	39.2 KW/ 56 HP
40	1.0 Mtrs./Mins.	1.1 to 5.6 Mtrs./Mins.	1.75 to 8.7 Mtrs./Mins.	20 MM	22 KW/30 HP	22 KW/30 HP	5.5 kw / 7.5 HP	50 KW/ 68.5 HP
50	0.9 Mtrs./Mins.	1.0 to 5.4 Mtrs./Mins.	1.5 to 8.5 Mtrs./Mins.	22 MM	30 KW/40 HP	30 KW/40 HP	7.5 kw / 10 HP	69 KW/ 91 HP

DIMENSIONAL DATA
	Overall			Boom Position		Derrick Capacity
Metric Tones	Boom Length	Mast Height	Tie Lenght	Min. Length from Center Mast	Min. Length from Center Mast	Max. Capacity at 15* Angle	Max. Capacity at 82* Angle
30	40	19.2	26.0	12.0 Mtrs.	40.0 Mtrs.	30 Mt	25 Mt
30	50	27.5	38.0	14.0 Mtrs.	50.0 Mtrs.	30 Mt	25 Mt
40	40	21.0	28.0	12.0 Mtrs.	40.0 Mtrs.	40 Mt	30 Mt
40	50	27.5	38.0	14.0 Mtrs.	50.0 Mtrs.	40 Mt	30 Mt
50	40	21.0	28.0	12.0 Mtrs.	40.0 Mtrs.	50 Mt	38 Mt
50	50	27.5	38.0	14.0 Mtrs.	50.0 Mtrs.	50 Mt	38 Mt


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