Spreader Beams:
Lifting Rig Design
MDC has experienced lifting engineers that can design complex lifting rigs,
and can aid the client in managing lift projects.
In order for a lift to be undertaken safely, the lifting rig must be designed properly by a competent person to ensure that the lift will be balanced, and the appropriate lifting gear is used for the job.
Issues to consider when planning a lift:
- Weight of Load.
- Position of Centre of Gravity of Load.
- Overall maximum dimensions of Load.
- Position of lifting lugs / lifting points, quantity etc.
- Design of the appropriate lifting gear to suit lifting points and Centre of Gravity.
- Height restriction.
- Risk Assessment.
- Method Statement.
MDC can determine or undertake all of the above points. MDC design custom industrial lifting equipment to the appropriate standards to enable the client to conform to lifting standards.
Case Study 1: Re-location of 48 subsea cable storage pans
 The MDC team re-located 2000 tonnes of subsea cable stored in 48 cable pans, from Southampton U.K. to Portland U.K. by barge.
3 types of lifting rigs were designed to suit the 3 different styles of cable
pan, that carried the pan under its base or from four central lifting lugs.
MDC also provided a Risk Assessment and Method Statement, together with special
Quality Assurance procedures and documentation.
Case Study 2: Floor panel installation at Gatwick Airport
 MDC designed a 6 point lifting rig to lift 20 metre long floor panels during assembly, transport and installaiton.
The one rig was designed to lift floor panels with varying CG positions.
MDC specified the gear to weigh each floor panel prior to lifting. MDC developed
a spreadsheet for the user onsite to calculate the CG position and the length
of slings required to accomodate the position of the Centre of Gravity by taking
the readings from the 6 load cells.
This system was used to successfully undertake
over 120 lifts. |
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