Dorman Long Technology
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MYQ5000 Jacking Tower System

The MYQ5000 jacking tower system was designed and supplied to Dorman Long Technology in 2014, to China Petroleum First Construction Company, based in Louyang, China. The tower system primarily intended for the erection of heavy petrochemical vessels, weighing up to 5,000 tonnes and measuring up to 160m high. The MYQ5000 was successfully function tested to 110% capacity (5,500 tonnes) static load tested to 125% capacity (6,250 tonnes) in December 2014 (see picture below).

The MYQ5000 has many new features including self-erect/dismantle, walking with the load, central wireless control of all systems and features 4 No 1,394 tonne capacity strand jacks for lifting. The main features of the MYQ5000 are :

  • Designed to erect petrochemical vessels up to 5,000 tonnes and up to 160m high
  • Vessels can be moved longitudinally and transversely after lifting. In the longitudinal direction the tower and vessel move together along a track.
  • Vessels can be rotated after lifting using a 5,000 tonne capacity swivel incorporated into the modular lifting beam
  • Two tower system for a small foot print on site
  • Free standing without guys to 90m tall, with a single level of guys required for greater heights
  • Lifting speed of 23 m hour using 4 No DL-S1394 strand jacks (1394 tonnes capacity per jack)
  • Longitudinal and transverse movement speeds of 25 m/hour using 4 No DL-CP400 pinned skidding jacks (400 tonnes capacity per jack)
  • Self-erection/dismantling system using a purpose designed 20 m/hour jacking system located at the base of each tower and able to handle 12m tower sections
  • All elements of the tower system have been designed for ease of transport between job sites and for fast assembly & disassembly when on site
  • The tower system can be bolted down to concrete foundations, or supported on load spreading mats
  • Central monitoring and synchronised control of all jacking systems using a customized and wireless version of our DL-P40 computer control system
  • High accuracy GPS stations located at the top of each tower for monitoring tower verticality. The GPS data is integrated into the DL-P40 computer control system.
MYQ5000 promotional video by China Petroleum First Construction Company
MYQ5000 jacking tower systemLoad testing to 125% capacity (6250te)
4 No DL-S1394 strand jacks4 No DL-S1394 strand jacks on the top of the MYQ5000 tower system
4 No DL-S1394 strand jacksStrand guides, recoilers, DL-L320V/2/300/D power pack and DL-CP400 pinned skidding jacks on tower top
DL-CP400 pinned skidding jackDL-CP400 pinned skidding jack
DL-CP400 pinned skidding jack
Self erect systemSelf erect & dismantle system consisting of compression and engagement rams
MYQ5000 tower systemMYQ5000 tower system