Double Girder EOT Cranes (Upto 50 Tons)
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Double Girder EOT Crane is a type of overhead crane that consists of two parallel beams that support a Hoist & Crab / Trolley. Double Girder EOT Cranes are used for heavy duty applications that require high lifting capacity, long span and high service class. Some of the advantages of double girder EOT Cranes are:
- They can lift heavier loads than single girder cranes, up to 200 tons.
- They can span longer distances than single girder cranes, up to 60 meters.
- They can provide more headroom and hook height than single girder cranes, as the hoist is mounted between the beams rather than under them.
- They can accommodate more complex lifting mechanisms, such as magnets, grabs, or rotating hooks.
Double girder EOT cranes are suitable for industries such as steel, power, mining, construction, shipbuilding, and aerospace. They can handle a variety of materials, such as coils, plates, billets, scrap, containers, and machinery. Double girder EOT cranes are designed and manufactured according to the specific requirements of each customer, taking into account factors such as load capacity, span, lifting height, speed, duty cycle, and environmental conditions.
Some of the common components of Double Girder EOT Cranes are:
Bridge Girder Beams: Primary structural component that spans the width of the Crane. It supports the trolley and hoist and connects to the end trucks.
End Trucks / End Carriages: Located at both ends of the Girders, these components house the wheels that enable the crane’s movement along the runway beams.
Movable Hoist: The device that lifts, positions and lowers the load using a wire rope or chain and a hook.
Trolley: The device that carries the hoist along the length of the beam. It can be manual or motorized.
Electrical Systems: Powers the crane’s movements and include motors, controllers and power supply lines
Controls: The interface used by the operator to direct the crane’s movements and lifting operations.
- Robust structural design having optimized structural weight matched by skilled workmanship
- Stabilized structural assembly by virtue of adequate length of end carriages
- Optimally designed main girder having maximum rigidity & strength
- Crane components offering high operating safety and reliability
- Optimum utilization of the available height and space thanks to compact trolley design
- Low headroom or raised up crane as per the shed size.
- Crane manufactured with with perfection in span & diagonal measurements in precise mechanical engineering tolerances to avoid skewing – resulting in minimum wear & tear
- Crane components offering high operating safety and reliability
- Travel Wheels are duly hardened and tempered made of Carbon steel thus increasing life
- Modular design of Hoist enables ease of Maintenance
- Gears & axles made of high strength chrome manganese alloy steel material
- Improved Hook approach
- Particularly high performance as a result of double girder design for high long and cross travel speeds
- CT Power and Control Supply transmission through Drag Chain or independent C track trailing cabling system along the crane girder for ease of operation
- Customized maintenance platform for maintenance of LT Motors / Crab
- Every motion is equipped with electromagnetic braking mechanism
- Operational control with option of Pendent push button or radio remote control
- Usha Martin make wire rope with a minimum factor of safety – FOS of 5
- All supply cables provided with protective earth conductor
- End carriages are equipped with a jacking pad, sweeper plate and derailment guard as standard features to maximise safety.
- For full length maintenance platform walkway with safety railings provided for a person to easily walk
- Variable options of long and cross travel speeds for customized solutions
- Can be supplied with a Bogie or Articulated End Carriages to reduce wheel load on the gantry
- Hoist brakes can be offered with DC Thrusters or Drum Brakes.
- Two stage Limit Switches – to reduce abrupt stoppage of load
- Electromechanical overload device to increase safety
- Frequency drives for varied speeds – fast and slow in hoisting, cross travel and long travel as per Customer requirements
- Radio remote control for operation at a safe distance
- Load display at Hook point for lifted load information
- Can be equipped with multiple safety features like overload protection, emergency stop and optional features like anti-collision system, remote control, siren, focus light etc.
- High customization: Can be tailor made to meet specific needs & requirements as per size, shape, speed & configuration
- Also available in flame proof / spark proof models to cater to hazardous environment applications