LIS® Tension Units / Track Adjusters (Undercarriage)
Hydraulic tension units (track adjusters) for construction machinery undercarriages.
Central undercarriage components for track tensioning and shock absorption in combination with the idler.
➡️ Use the LIS undercarriage filter to quickly find the correct tension unit for your machine with just a few inputs.
📞 +49 (0)2241 26 56 700
Search for machines (e.g. Komatsu PC200 LC-7)
Position within the undercarriage
Tension units are an integral part of the undercarriage of tracked machines. They are located in the front section of the track frame and act directly between the frame and the idler
➡️ An overview of all relevant components can be found in the main category Undercarriage.
Function of the tension unit
The tension unit (also known as track adjuster, internationally recoil spring assembly) performs two essential functions:
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Track tensioning
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Shock absorption
A correctly matched tension unit significantly contributes to the service life of the entire undercarriage.
Selection by machine and undercarriage data
In professional spare parts applications, the selection of a tension unit is not based on individual dimensions, but on:
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Machine manufacturer and model
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Undercarriage configuration
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Idler specification
The LIS undercarriage filter helps you identify the correct tension unit quickly and reliably.
Tension units for common machine brands
Our tension units (track adjusters) are available for a wide range of common tracked machines and undercarriage configurations. This includes, among others, machines from JCB, Caterpillar, Hitachi, Komatsu, Volvo, Hyundai, Kobelco as well as Doosan (including Solar models) and additional brands.
Final selection is always based on the machine model and undercarriage configuration. Our product range is continuously expanded.
Interaction with other undercarriage components
Tension units operate in functional interaction with other undercarriage components, in particular:
Spare parts & system assignment
Tension units are part of the undercarriage as well as the spare parts for construction machinery
An alternative overview is available in the category Spare Parts → Tension Units
Technical information
Further technical data, detailed dimensions and drawings are available on the respective product pages after customer login.
Advice on undercarriage selection
Unsure which tension unit fits your machine or undercarriage configuration?
📞 +49 (0)2241 26 56 700
Machine and brand names mentioned serve solely to identify compatibility. Operational safety depends on proper installation, manufacturer specifications and the technical information provided in the respective product details.