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Sarens entered US Heavy lift and heavy haul space in 2009 by acquiring Rigging International, a company based in California. We officialy changed the name to Sarens USA, INC. in 2012.

Sarens USA, INC has offices in Houston from where we cover the Gulf area, in Wisconsin from where we cover the Midwest, and in Rowesville from where we cover the East coast.


We provide Engineered Heavy Lifting Services

Heavy Lifting

  • We provide Project-based heavy lift services
  • Turnaround maintenance
  • Installation of turbines & generators
  • Erection of steel structures
  • Erection of heat exchangers
  • Installation of mechanical equipment, drums, casing / inlet ducts, vessels, pumps

Heavy Transport Services

  • Out of Gauge and abnormal load transport
  • Project based heavy transport
  • Rental of specialized transport equipment
  • Factory-to-Foundation

Decomissioning and Dismantling Services

Rental Services

  • We provide bare lease as well as operated rentals services
  • Skidding & jacking


  • New nuclear plant construction
  • Operating nuclear plant
  • Small Modular Reactor (SMR)
  • Decommissioning
  • Department of Energy (DOE)
  • Government
  • Thermal power plants
  • Oil & Gas
  • Petrochemical
  • Major civil projects including:
    • Airports
    • Bridges
    • Stadia
    • Ports & yards
    • Oversized heavy haul


  • Hydraulic cranes
  • Cranes ranging from 90T to 3200T
  • Hydraulic jacks
  • Strand jacks
  • Self Propelled Modular Trailers
  • Semi trailers
  • Out of Gauge transport


Sarens USA
10855 John Ralston Rd
Houston, Texas 77044
+ 1 832 536 3669
+ 1 832 615 2678

Sarens USA
9204-A Highway 61
Sorrento, Louisiana 70778
+ 1 225 450

Sarens Nuclear & Industrial Services
122 River Drive
Rowesville, South Carolina 29133
+ 1 803 534 1348
+ 1 803 535 6093

Sarens Nuclear & Industrial Services
1430 South Goodland Road
Hartford, WI 53027
+ 1 414 299 0858

Creators & Explorers - How We Use SarSpin to Achieve Precision Lifting and Positioning
October 2021

Nicknamed the “Sarens Spider,” our in-house designed SarSpin system enables safe, controlled, and precise lifting and positioning, especially when increased accuracy is vital. But don’t let the name mislead you: unlike an actual spider, the SarSpin is a set of hydraulic cylinders with four legs, not eight! This special equipment can handle loads weighing up to 220 tonnes, giving our operators precise control of individual sling loads and stroke adjustments. 

Sarens operators use a central computer to control the SarSpin system, constantly monitoring tension and stroke in each cylinder for precise lifting and positioning. In this way, they guide tensioning and load distribution at all lift points, minimising deformation to a client’s load. SarSpin enables them to compensate for load deflections, level out a load, and optimise load distribution.

A SarSpin setup of three or four hydraulic cylinders can not only be used to control the level of a load, but the position of its outer corners, which is useful during operations like bridge installations. On the other hand, a setup of multiple SarSpin cylinders mounted vertically at each lifting point can be used for load and deflection control of larger loads with multiple lifting points. 

SarSpin are often combined with a customised spreader system to control and equalise the tackle or lifting frame at every lifting point. While they were originally designed to replace spreaders, on most occasions small spreaders are still used to prevent the SarSpin systems from bumping into each other while without a load.

SarSpin takes its place among a robust fleet of Sarens equipment developed for a world where no lift is too heavy or too high. While we could still achieve a lot without the innovative SarSpin system, its use has proven indispensible for many projects. If it weren’t for SarSpin, for instance, deflection control of lighter loads could still be achieved with chain blocks, but these don’t have the advantage of a load and stroke readout. Strandjacks could also be used, but they have a larger stroke and require much more preparation and maintenance.

Meanwhile, controlling a load using a single crane and the SarSpin system offers a valuable advantage: avoiding the use of two cranes for a tandem lift, which in turn reduces costs and increases safety. SarSpin can also replace a typical spreader combination to achieve a lower rigging height. The equalising function of the spreaders, in that case, is replaced by the SarSpin’s load control.

Our SarSpin systems have been used on numerous notable projects over the years, including the Hinkley Point C nuclear site in the UK. There, six 200-tonne capacity SarSpin, combined with the SGC-250 crane, were used to equalise tackle weighing 700 tonnes. An earlier project in Tengiz, Kazakhstan in 2019 also featured an impressive configuration of SarSpin: for that, we lifted a 1.600-tonne capacity frame using twelve 200-tonne and 22 150-tonne SarSpin combined with the Sarens SGC-140 crane.

With the SarSpin and other custom-designed equipment, Sarens has proven time and again to be an innovator in the heavy lifting industry. Our equipment helps clients make great things happen, no matter how complex, heavy, or high.