Telescopic lip leveller is a highly practical and reliable solution. The telescopic lip is fully controllable at variable lengths of up to 1000 mm. This makes the dock leveller ideal for efficient loading and unloading end loads at the back of the truck. The long chamfers and the lip angle ensure a smooth transition from the dock leveller to the vehicle floor in every situation.

You can combine the Telescopic lip leveller with a stepped frame base frame, which enables to quickly dock vehicles without opening doors. It offers a solution for complete Cool Chain.

Combi Dock Leveller makes it possible to dock different sized vehicles on the same dock, reducing additional dock investment requirements and save building cost.

The X-Series is standardly supplied with an auto-park function. With a push of the button the leveller is brought back to its start position.

The telescopic levellers guarantees smooth loading and unloading, minimising the risk of damage to goods and to loading trucks. This considerably increases their operating life and cuts down on maintenance.

  • Climate Control for the Food Industry
  • Ideal for End-Loads
  • Optimum Safety
  • Easy to Operate with Intuitive Controls
  • Versatile, Wide range of Lip Lengths & 6-8 t capacities


The platform, beams and lip are manufactured from high tensile steel (S355J0 / STEEL 52). Both the platform and the lip from the 6 tons have a tear plate surface (8/10 mm and 13/15 mm respectively).The platform and lip of the 8 tons series XFH, XPH have a tear plate surface (10/12 mm and 15/17 respectively), making them suitable for 3-wheel forklift trucks. The lip length is 600 mm as standard with a 72 mm chamfer on the front edge and a lip angle of 5.5 degrees.

Black Anti-Corrosion Coating and galvanised frame components protect the dock leveller against all weather conditions. Standard protection is an anti-corrosive coating and paint finish of 80 micrometres total thickness. The unique design includes a central (main) cylinder, front-mounted for maximum lifting efficiency, a fully controllable lip with nylon rollers, a closed rear hinge, and automatic safety legs with damping rubbers.

Wide choice of control box functions with auto park as standard and integrated operation options with the COMBILOK vehicle restraint, dock door or shelter.

Wide Choice of Lip Lengths

Telescopic lip X-Series levellers offer numerous possibilities and can be customised for your loading dock situation. The length of the platform will primarily be determined by the height difference between the warehouse floor and the expected range of vehicle load beds. In order to guarantee smoother loading and unloading with less physical strain, Stertil Dock Products base its sizes on a lower maximum incline than is stipulated by the EN 1398 Directive.

Lenghts MM 2000 2200 2500 2800 3000 3500 4000 4500

Above Dock

600 MM 340 395 345 385 360 375 410 385
1000 MM 365 425 395 435 405 415 450 420

Below Dock

600 MM 380 355 335 325 315 425 370 345
1000 MM 405 380 375 360 350 460 400 365

Frame Height

XF en XP 585 585 585 585 585 700 700 700

Interlock Operation System

The X-Series telescopic lip can be positioned perfectly using the three control buttons, and returned to the parked position using the standard auto park function. There are advanced control options such as door control, shelter control, automated interlock to prevent operation when the dock door is not fully open, and automatic door closure locking until the leveller has been parked correctly.

Optimum Safety, Installation and Maintanence

In case of premature vehicle departure whereby the forklift truck is still on the X-Series telescopic dock leveller, the automatic panic-stop activates. The leveller in most cases remains in operation even after a panic-stop situation. The emergency stop button on the control box can also be operated manually. During maintenance, the dock leveller is held safely in position by means of a special maintenance strut. When the leveller is in parked position, it is automatically supported by two cross-traffic safety legs. The X-Series dock levellers can be installed with a base-supported frame (XP) in a closed pit, or a suspended frame (XF) in an open pit. Both types of installation are simple to carry out. Stertil can provide all the necessary information for construction and installation including drawings.