Electromech Engineers Stacker Cranes

 

With increased cost of land and construction of built up area, industries requiring to stock substantial volumes of their products or inputs, especially if they are diverse and palletized, are looking into material handling systems which maximize utilization of warehouses by volume instead of by floor area, besides of course swift retrieval and stocking. This concept has become urgent in metros and mini metros, with spiralling cost of land and construction.

The above has been traditionally achieved by Fork Lifts, either battery or diesel operated operating in conjunction with an appropriately designed racking system. This method has the following disadvantages.

  • Exhaust fumes if diesel Fork Lifts are employed
  • Battery charging station if battery operated Fork Lifts are employed
  • Specialist maintenance crew for both
  • Limitation in storage by height (limited by fork travel) reducing storage space by volume
  • Increased aisle width (consequent to turning radius of the fork lift), reducing storage space by area

 

Stacker Crane - Mast and Main Girders are clearly visible in this photograph.

Stacker Crane - This picture portrays the functioning of the fork in a typical warehousing operation.

Electromech Engineers has developed Double Girder Stacker Cranes overcoming all above drawbacks. Essentially a stacker consists of -
  1. A pair of Main Girders spanning the entire ware-house with cross travel rails mounted atop.
  2. A pair of End Carriages on which the Main Girders rest.
  3. A motorized trolley moving along the main girders with a sub-trolley mounted atop the main trolley. The sub-trolley has a hoisting mechanism that can also rotate about its own axis. 
  4. A rigid fixed mast suspended from the sub trolley.
  5. A movable mast with adjustable forks running on the fixed mast on rollers.

 

General Arrangement drawing for a Stacker Crane working in conjunction with a typical racking system.

 

On this basic platform, several additional features could be incorporated to meet individual requirements, such as -
  1. Manual movement of sub-trolley
  2. Micro speeds on all motions
  3. Sub-hoisting of the movable mast
  4. Cross traverse of the fork assembly alone
  5. Manual or motorized fork gap adjustment
  6. Drives with Variable Frequency Control, ensuring ramping of acceleration and decelration on all travel motions
  7. Cabin operation, with cabin movable mast or stationary at ground level
  8. Fully computerised Automatic Storage and Retrieval System (ASRS) integrated with the warehousing system

 

Stacker Crane

For us to provide you with a meaningful and cost effective proposal we shall need the following information -
  • Drawing of the racking system (if existing)
  • Ware-house plan and cross-sectional elevation (entry and exit doors clearly marked and dimensioned) alongwith zoning details of the racking system
  • Pallet size(s)
  • Maximum product size and weight
We are also in a position to supply the entire racking system  in association with a partner specializing in the same. 

Electromech Engineers in association with a partner have designed, manufactured and supplied several such ware-housing systems.Clients include Hindustan Aeronautics Limited, Alfa Laval, Larsen & Toubro, Grindwell Norton Limited, Navneet Publications (India) Ltd.

Please contact us with your requirements and we will be happy to give you a quote for our products.
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