Sub Frame


Our sub frames are an enhancement of designs developed and computer modelled in conjunction with Anglia Ruskin University. The principal longitudinal members are constructed as a two tier hot rolled steel channel beam frame 300mm deep. Hot rolled steel angle ladder frames are welded above and braced to the channel beam. The longitudinal steel angle components of the ladder frame provide additional support to the floor joists.


Steel members of the ladder frame are located adjacent to and bolted to several of the floor joists. The structure includes siting wheels, leveling supports and detachable telescopic tow bar. All subframes are manufactured in our own workshop by our BS4872 certified engineers and protected in accordance with ISO12944. They also comply with the additional requirements of COP501.

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