Double Girder Cranes

Double Girder Cranes

Double Girder cranes received form major customers as bulk orders by APEX every year. As a result, the company has successfully managed to refine this particular product over time to reflect changing customer needs and evolving technology.

The figure above shows a 30T Double Girder EOT crane. We manufacture Double Girder Bridge cranes with or without the auxiliary hoisting feature also.

APEX also makes cranes that have a cabin control feature operated thro push button or master controller.

Depending on the Safe Working Load of the crane, the Double Girder Bridge Cranes have either a carriage type travelling mechanism or a bogie type travelling mechanism.

The range of specifications for Double Girder Bridge Cranes along with their standard features are given below.

Specification Description
Safe Working Load 2000 kg to 200,000 kg (or as required by the customer)
Spans 6 m to 40 m (or as required by the customer)
Height of Lift As per customer specifications.
Class of Duty / Standards Class 2(M5), Class 3(M7), Class 4(M8) as per IS 3177 / IS 807. Also available as per FEM, DIN, BS, AISE, ASME or any other applicable international standards.
Speeds Selected depending on client specifications / applications / shed dimensions
Crane Control From floor through Pendant Push Buttons / Open Cabin / Totally Enclosed Cabin Radio Control(Radio remote Control shall be offered as optional on customer choice)
Drive System Single / Twin Drive with Squirrel Cage / Slip Ring Induction Motors, through totally enclosed, oil immersed, helical gearbox.
Motors Foot mounted, IEC Frame Size, Crane Duty motors for all motions.
Brakes Electro Hydraulic Thrusters for all motions. DC/AC Electro Magnetic Brakes or as additional brakes can be provided on request.
Power Supply System For Hoist and Cross Travel through Trailing Cables For Crane through Trailing Cable / MS Angle Iron Conductors / Bare Copper Conductors (depending on customer's choice)

Standard Features of APEX Double Girder Cranes:

Optimum design ensuring minimum Dead Weight, Wheel Loads, Head Rooms and Clearances, reducing building costs.

  • Forged cross travel and long travel wheels on ball / spherical Roller Bearings, resulting in long trouble free service.

  • Hobbed and Run-In Heat Treated Gears machined from High Carbon Steel / Alloy Steels to ensure smooth, silent and durable service.

  • Wide range of Hoisting, Cross & Long Travel Speeds to suit every operational requirement.

  • Amply proportioned Main Girders of Box section, fabricated from IS 2062 plates that undergoes stringent quality testing. All butt welds are 100% radiographed. Main Girders further stiffened with long and short diaphragms.

  • End Carriages are made either from rolled sections or fabricated from plates.

  • Well designed Live Axle Type Runner Wheels on "L" type bearing housings.

  • Rope Drum fabricated from seamless pipes (ASTM A-106 Grade B) or from IS 2062 plates. The Rope Drum is stress relieved and the long seams are 100% radiographed.

  • Standardized sub-assemblies used for complete range ensures quick supply of spares in case of emergencies or routine maintenance.