subject: Double Girder Crane: An Overview [print this page] Almost in all the industries, heavy loads are handled and conveyed for various processes. Double Girder Cranes are used for the purpose. The extensive usage of Double Girder Cranes in the industries has made the design, development and manufacturing of these cranes a really important aspect. Used for material handling in various industries, the Double Girder Cranes can lift heavy weights ranging from 0.5-100 tons. The span of the Double Girder Cranes ranges from 0.5-50 meters and the range for the lift is 0.5-35 meters.
Some Features Of Double Girder Cranes:
The Double Girder Cranes are packed with advanced features some of which are listed as follows:
Consist of two torsion-free box girders which make them suitable for lifting and transporting loads over a wide span.
Heavy duty end carriage joints ensure positive contact of all four wheels with the track
Main girder profiles optimally produced using computers to achieve maximum performance with minimum deadweight
Designing Of The Double Girder Cranes:
Design: In accordance with standards like IS-807, IS-3177 or IS 4137 considering the safety factor with respect to the appropriate class of duty
Motors:
Suitable for frequent starting, reversing & braking in accordance with IS-325
Motors totally enclosed in dust proof construction
Foot/flange mounted TESC/TEFC
Square cage motors with integrated safety brakes, insulation class F, IP54 protection for hoisting, CT & LT motions
Brakes: Single/dual-disc/shoe electromagnetic/EHT brakes with features like automatic braking on power failure (Fail Safe)
Gearbox:
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
Helical/Spur gear designed for adequate strength and optimum wear resistance for smooth operation & long life
Electrical Panel:
Modular design, easy to install, minimal maintenance requirements, reliable operation and fuse less circuitry
Ducted wiring and compact terminals
Motor overload protection to prevent overloading.
Limit Switch: Safety limit switches for stoppers provided to prevent over traveling in all motions
Painting: Two coats of primer before assembly & two coats of synthetic enamel after testing
Optional Features In Double Girder Cranes:
VVF drive for variable speed
Soft starter
Slip ring motors
Wireless radio remote control
Shrouded DSL system for power feeding
Flameproof and cabin operated
SUMO MATERIAL HANDLING SYSTEMS is a well-established name among the various Manufacturers and Suppliers of Double Girder Cranes. The company also offers a wide range of other Industrial Products such as numerous other Crane Types, Magnets and Hoists. For more details regarding the company and its offerings, one can log on to www.sumocranes.co.in.
