Overhead Traveling Crane

Overhead Traveling Crane

Power - Master Overhead Travelling Cranes designed & manufactured in accordance to IS: 3177 & IS: 807 are available in medium duty and heavy duty classification with below configuration.

(We also make heavy duty class IV cranes for steel plants as per IS : 4137-1985)

Classification :
  • Electrically operated Overhead Travelling (E.O.T.) Crane
  • Hand operated Overhead Travelling (H.O.T.) Crane
  • Single Girder Crane
  • Double Girder Crane
  • Underslung Crane

Depending on capacity & span fabricated from standard I-Beam or plate welded Box type with diaphragms, designed to sustain all stresses arising due to vertical and lateral forces with impact. Steel plates used for bridge girders and diaphragms are as per IS: 2062.


Fabricated from rolled steel sections or plates and welded together to form a box with suitable stiffening wherever required. End Carriage consist two nos. double flanged solid forged wheels for long travel motion. These wheels are mounted on axle with anti-friction spherical roller bearings.


Hoisting is through Power - Master make Wire Rope Electric Hoist for single girder crane or Crab for double girder crane. The crab frame is made of steel plates and rolled sections in welded construction.


The wheels of each end carriage are driven by independent synchronized drive system mounted near each end carriage. The drive system comprises of crane duty electric motor, gearbox and brake.


In case of double girder crane a full length chequered plate platform is provided with safety hand railing on one side of the crane and two short platforms at each end carriage for the maintenance purpose.


Sheet metal fabricated dust proof control panel houses contactors for all motions, MCB and other electrical components arranged logically.


Shrouded Bus Bar conductor with current collector arms.


Limit Switches are provided to prevent over hoisting and over traveling. Rubber buffers are provided at the four ends of end carriages and crab (for double girder crane) to prevent the over traveling of crane in L.T. & C.T. motion.


Floor operated through suspended pendant push button station for all motions.

Optional Features against requirement :
  • Cabin operated cranes
  • Crane operation through wireless remote control
  • Flameproof cranes
  • Crabs with auxiliary hoist
  • Cranes with Variable Frequency Drive (VFD)

Under Slung cranes are distinguished by the fact that they are supported from the roof structure and run on the bottom flange of runway girders. Under Slung cranes offer excellent side approaches, close headroom and can be supported on runways hung from existing building members if adequate.





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