TTS-2/85 Series Tensioner

2-track system

The MDL TTS-2/85 Series Tensioner is a 15Te line pull, 2-track system for the installation or recovery of cables, umbilicals and other flexible products. The caterpillar tracks are fitted with ‘V’ shaped pads and operate by gripping the product between the opposing track carriages with hydraulic cylinders.

The system is compact in size with the top track rotating out of the firing line to provide a large area for accepting the product.


Closed – 5.0m x 2.2m x 3.5m (LxBxH)
Open – 5.0m x 2.86m x 3.1m (LxBxH)



Operational mode
2 – track mode

Track contact length

Max grip

Max squeeze/m

Max pull force (idler end)
15Te at 0.09 CoF
11.9Te at 0.07 CoF

Product speed
Variable to 1,200m/hr (at 60Hz supply)

Tension control
10 – 100%

Product Capacity

Product range
50 – 620mm OD (may require additional track pad sets)

Maximum pad opening

Ancillary Equipment

Electro-hydraulic powerpack
3.5m x 2.4m x 2.5m (LxBxH)
Weight - 6.5Te

Control van
3.0m x 2.4m x 2.5m (LxBxH)
Weight – 4.0Te

Spares container
3.0m x 2.4m x 2.5m (LxBxH)
Weight – 6.0Te

Hose & Cable Package

20m set from powerpack to tensioner unit
20m power cable from powerpack to control van
20m power cable from powerpack to vessel

Lifting Equipment

1 x lifting rigging set for tensioner
1 x lifting rigging set for all ancillary equipment

Assumed Conditions

Up to 100%

Marine/high salinity

Power Requirements

Supply 1 (main system)
3 phase 440V, 60Hz, 250 amp supply at full load

Additional Information

Tracks driven by hydraulic motor/brake/gearbox drive assembly to deploy or retrieve the product. The two track carriages are mounted in the main structural frame. This is connected to the mounting frame with low shear mounts and load cell pins for accurate product load information.

Both tracks open hydraulically to load/unload product and close to grip the product when operational. The track carriages are mounted on kingpins so that they can pivot if the outside product diameter tapers. Supplied with a dedicated electro – hydraulic power pack, which drives the track motors and operates the track cylinders. Remote operator’s control panel which can be fitted within an existing control room or dedicated cabin.

Quick connect/release package of interconnecting cables and hoses completes the basic system. Standard and custom track pads can be supplied to suit client product requirements.

Unit is road transportable or can be shipped in 40 foot flat rack containers. Facility for data logging and remote interrogation subject to set-up and bandwidth on-board vessel.

Note: For purchasing the unit can be offered with electric drives.

T 85 T85 02