Product Details

heavy duty double girder gantry crane 20t

Design, Features & Specifications:

Crane Name		gantry crane
Rated Lifting capacity(t)		5					10
Span(m)		18	22	26	30	35	18	22	26	30	35
Working grade		A5(intermediate)
Lifting Height(m)	Main	10			12		10			12
	AUX
Working Grade		A5(intermediate)
Speed(m/min)	Main hook	12.3					14.6
	AUX hook
	Crab Traveling	44					43.7
	Trolley traveling	40.1					51.2
Installed Power(Kw)		68.3			76.3		78.3			87.3
MAX. wheel Load(KN)		217	230	243	266	289	247	254	261	325	354
Steel track recommended		P43					QU70
Power		3-phase AC 50Hz 380V

The double girder cranes are used when heavy loads, wide spans or high working frequency are required than single girder gantry crane. Double girder gantry cranes consist of two torsion-free box girders and four legs to achieve perfect construction stability. This makes double girder gantry cranes especially suitable for lifting and transporting loads over 10 T and for span of more than 25m,load capacities up to 500 T and with spans up to 50 M.

The profiles of the main girder are optimally produced using a integrated technology which is weldless , so that maximum performance with a minimum of deadweight can be achieved.

Standard Features:

Motors: The motors are used specially crane duty suitable for frequent starting , reversing & braking in accordance with ISO 9001:2000 ISO 14001:2004.Motors are totally enclosed in dust proof construction foot / flange mounted TESC / TEFC , Sq. cage motors with integrated safety brakes, insulation class F, IP54 protection for hoisting, CT & LT motions.

Brakes: Independent Hydraulic Brake make the crane more safe and easier to control

Gear Box : The entire gear boxes are made of accurate hob cut helical / spur gears & pinions having hardness 250 to 350 BHN made from carbon alloy steel. All gears & pinions running on antifriction type ball / roller bearings in totally enclosed oil bath giving constant splash lubrication. The helical / Spur gear designed for adequate strength and optimum wear resistance for smooth operation & long life.

Wheels: The wheels of crane crab ,main beam and end carriage are produced in our special Vacuum casting workshop (No sand inclusion technic) ) which make our wheels more elastic and outer surface hard-wearing and durable.

Electrical Panel : -Modular design, ease to install and maintain, reliable operation, fuse less circuitry, ducted wiring and compact terminals. Motor overload protection to prevent overloading.

Limit Switch: Safety limit switches for stoppers will be provided to prevent over traveling in all motions.

Painting: -Two coats of primer before assembly & two coats of synthetic enamel after testing.

Optional Features :

Variable speed through VVF Drive
Soft starter
Slipring motors
Wireless Radio Remote control
Shrouded DSL system for power feeding
Flameproof
Cabin Operated
PLC automatic Control system