Double Girder EOT Crane

The crane will be assembled and tested at our works at ground level, load test and 25% over load test are to be performed at site after erection. Loads shall be arranged by purchaser.

 Testing of Crane

Controlling equipment is provided for operation form the driver cabin thro drum controllers or operation thro pendent push button station.

 Control Equipment

Prevention of development of any undue stain in the platform supports which otherwise may give way due to excessive alternate stresses developed in line shaft with rigid couplings.

Prevention of mis-alignment arising out of differential deflection of crane girders and shafts.

Prevention of mis-alignment of the line shaft due to basic alignment and improper maintenance.

This type of arrangement of providing geared couplings (known as floating shaft arrangement) has the following advantages:

In capacity of transmitting torque it is the smallest in size and weight in comparison with any other flexible coupling.

Simple to align, install and easy to maintain.

Accurately machined for ultimate performance.

Exceptionally long life.

Can be used on reversing service without any noise or vibration.

Crowned teeth are free to align themselves as in ball and socket joint.

It is self-aligning with no bending action at any point of its revolution.

No rubber bushes to require frequent replacement.

No springs to crystallize or break.

Simple in design and composed of a few parts.

The entire transmission system on the cross traverse and long travel gear boxes is designed with use of geared flexible coupling which have the following advantages :

Geared  Coupling

Single Drive Arrangement  & Twin Drive Arrangement are provided as per span of crane.  Each drive comprise of totally enclosed oil lubricated horizontal type gear box, Electric motor and fail safe type brake. In case of single drive out put shaft of gear box extends on both sides which drives one wheel of each end carriage on the principle of floating shaft  In case of twin drive arrgt. out put shaft of gear box extends on one side and drives one wheel of the end carriage.

Long Travel Assly.

3.   Ease of maintenance during break down. Complete wheel assly can be changed in few minutes.   

2.   Wheel load is being transferred through machined  pad  which prevent failure of holding bolts.  

1.   It provide two load bearing surfaces at right angle to take vertical as well as horizontal Load.

The L-Type bearing have following advantages.

The crab frame is fabricated from steel sections and carries hoisting and cross traverse machineries. Double flange carbon steel wheels with support block of L type bearing are provided

Crab Assly

M.S. Chequered plate with hand railing is provided for maintenance of the crane on one side of bridge to the full length of the crane span.

Walk Way 

End carriages are fabricated from rolled steel sections or plates and are provided with diaphragm members, connected to the girders to prevent cross bending. The end carriages will be of Single piece construction which reduces the change of bending during transportation. Rubber Buffers will be fitted on each end of carriages.

End Carriages

Less chance of damage to structure during transportation. 

Ease of maintenance and cleaning.

Stream-lined and aesthetically pleasing appearance.

Low Head-room, which reduces the cost of construction of building

Less Change of Fatigue Stress due to Welding

More Torsional  Rigidity

The girders of the crane with box type construction having following definite advantages :

The Structural parts are fabricated from tested quality steel. Crane Bridge are fabricated to box girder from plates.

Crane Bridge 

 Simplex Double Girder EOT Cranes are designed to IS : 807 & IS : 3177 with suitable factor of safety as per duty class.

Lift   :  6 Mtrs & Above

Span :  Up to 30 Mtr.                          For Higher Capacity & Span please consult us.

Cap  :  Up to 30 Tonnes