Profile: Stertil UK Ltd specializes in the design, manufacture, installation, commissioning & maintenance of loading bay equipment and industrial door systems. We provide dock levellers & shellers, industrial doors, scissor lifts and rapid roll. The dock leveller platform is formed of a single piece of high-tensile steel plate, not made up of welded sections, and is of a thicker material than most competing products. The s355jo(Fe52) construction gives maximum strength-to-weight ratio whilst retaining torsional flexibility to help reduce deckplate distortion. Our S series dock levellers have a hinged lip which is automatically activated by a second hydraulic ram. It is controlled by a single push button. When the button is pressed the platform rises to its highest position and the lip is extended into place automatically. When the button is released the platform then lowers until the lip rests on the vehicle floor.