Skidding System

skidding-system-1 skidding-system-2

Our Skidding System has a maximum capacity of 500 Tons, and can move in two opposite directions due to its push/pull grip mechanism

Combined with the diesel power-pack the system can easily be used for outdoor projects


Skidding is an ancient transportation technology. The Egyptians built their pyramids by use of a skidding technique to move stones of impressive dimensions and weight. Over the years a variety of skids were used to move heavy structures, mostly by using skid-tracks and lubricated skid materials.

Technical Basics

With the 'PC Controlled Hydraulic Compensated Skidding Technology' we have added a major innovation to the skidding method:

  1. Hydrospex has introduced the use of a skidshoe that is pushed over a skidtrack by a hydraulic push-pull cylinder. Special PTFE coated blocks are placed on the skidtracks to reduce friction. The PTFE coating guarantees a friction of less than 5%.
  2. To compensate for uneven foundation surfaces a hydraulic lifting cylinder has been installed. This cylinder lifts the object from its support and it compensates the load during travelling. This results in a constant spread of the level  and the load.

Strand Jack L2000

strandjack-preparation strandjack-preparation2

Our Strand Jack System has a maximum lifting capacity of 800 Tons. This system is the latest comes with an SCC (Smart Cylinder Control), which provides the ability to provide controlled lifts.

Strand Jack Specification.

  1. The HSL2000 is a 200 metric ton Strandjack that can be used for lifting and pulling purposes. It has 19 strands per unit, each with a diameter of 15.7 mm.
  2. With our advanced and easy to operate  SCC control system a maximum of 60 units can be used at the same time. Even with units of different capacities the SCC system keep all units in synchronized motion during lifting and lowering
  3. The standard HSL2000 is delivered with electrical operated single outlet power pack with a 7.5 kW electric motor. This gives the HSL2000 a lifting speed of approximately 8 meters per hour. When higher lifting speeda are required we will supply a power pack of 11 or 15kW.

Stranjack capacity

  1. system consisting with maximum lifting of 800 Tons.
  2. The Strand Jack is equipped with an over centre valve, stroke transducer, pressure transducers and proximity switches for computer control.
  3. While in operation, it is possible to replace grips in both the top and bottom anchor.
  4. The Strand Jack configuration is from such a design that is possible to replace  the complete assembly (cylinders and all other mechanical parts) as long it is possible  to maintain the load in the bottom anchor.
  5. All running surfaces on the hydraulic cylinders are executed with corrosion protecting, hard coating. This makes the Strand Jacks suitable to work in marine environment

How is it more effective than using a crane?

A 350 Ton crane with all its accessories can weigh around 250 Tons. Mobilizing and de-mobilizing the crane, assembling the booms, positioning the crane in restricted areas can also lead to very great difficulties.

The jack is smaller equipment weighing only around 5 tons, One operator can control the entire operation. The existing structures can be used to support the jack. This makes the installation and use of the Strand Jack much easier.

As the radial distance between the crane and the load point increases, it considerably reduces the lifting capacity of the crane.

The jack applies the lifting force exactly in-line with the point of load, capacity is fully utilized.

Even the tandem use of two cranes is very difficult operation.

A number of jacks can be operated simultaneously by SCC to lift very large loads of thousands of tons.

A crane normally uses a single strand hoist with pulley sheaves to lift the load.

Strand jack uses multiple strands to lift the load. This adds to the redundancy and safety.
In restricted areas where cranes do not have access, strand jacks are the best.