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Lifetime warranty on Open Lip Hinge

S-Series - Swing Lip Leveller

The S-Series Swing Lip dock leveller is equipped with an unique open lip hinge and enables an easy and smooth transition between the warehouse floor and truck. The unique closed rear hinge and 2 mm lip thickness is created by using a 80 mm long chamfer. During the loading and unloading process the leveller adjusts itself automatically to the changing floor height of the truck, even if the truck is loaded unevenly.

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  • Safer and Stronger
  • Optimum Safety
  • User-Friendly Control Console
  • Lifetime Warranty
  • Unique Open Lip Hinge
  • Standard 7.5 degrees Angle Lip

Operational Features

Open Hinged Lip Dock Leveller

During the loading and unloading process the leveller adjusts itself automatically to the changing floor height of the truck, even if the truck is loaded unevenly. With dynamic capacities of 6, 8, 10.5 and 12 tons is the S-Series dock leveller extremely versatile. The dock leveller is available in many different sizes and is an excellent choice for almost every dock situation.

loading bay dock products

Lifetime warranty on the Open Lip Hinge

The unique hinged lip has big advantages, thanks to the open construction, accumulation of dirt is impossible. Furthermore, the construction is much stronger than a traditional piano hinge, therefore Stertil provides a lifetime warranty on the open lip hinge. The levellers which are wider than 2,000 mm are equipped with a tapered lip for badly centered trucks.

Standard Leveller

The S-Series dock leveller is equipped with an unique open lip hinge and enables an easy and smooth transition between the warehouse floor and truck. The closed rear hinge and 2 mm lip thickness is created by using a 80 mm long chamfer.

SPL Leveller

The SPL leveller is the new version S-Series leveller and has been developed specifically for renovations and dockhouses. With the special front angle, the SPL can easily replace existing levellers without additional building changes.

  • Standard Leveller
  • SPL Leveller

Optimum safety

In case of premature vehicle departure whereby the forklift truck is still on the 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.

Interlock Operation System

The dock leveller can be positioned perfectly using the three control buttons, and returned to the parked position using the standard auto park function.

There are several advanced control options which provide additional functions 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.

For every Distribution Centre a Dock Leveller

The S-Series offers numerous possibilities customised to your dock for most efficient use. The length of the platform will primarily be determined by the height difference between the warehouse floor and the expected range of truck beds. Easy installation with the S-Series for both the base-supported frame (SP) in a closed pit, or the suspended frame (SF) in an open pit. Read more about the installation methods in our: How to design a loading bay.

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Dynamic capacity SF- SP 6 tons, SFH - SPH 8 tons 
Lenghts (mm)
excluding lip
Working range (mm)*
above dock 
Working range (mm)*
below dock
Frame height (mm)
2000 240 315 585
2200 265 300 585
2500 305 310 585
2800 345 300 585
3000 350 305 585
3500 435 355 700
4000 445 340 700
4500 405 330 700

Platform widths (mm), 1750, 1830, 2000, 2110, 2250
* Calculated with 350 mm lip, 7,5° lip angle and 100 mm bumper projection

F= Frame installation, P= Pit installation, H = Heavy Duty, Long life span 

Technical Specifications

The platform, beams and lip are made from high tensile steel (S355J0 / STEEL 52). Both the platform and the lip have a tear plate surface (8/10 mm and 13/15 mm respectively), making them suitable for 3-wheel forklift trucks. Pre-equipped with cables and cable tree between leveller and control box for a quick and fast installation.

Black Anti-Corrosion Coating and galvanised frame components to protect the dock leveller against all weather conditions. Standard protection is an anti-corrosive coating and paint finish of 80 micrometres total thickness. other colours are available upon request.

Below Dock Control (BDC) is standard on all S-Series levellers. Automatic BDC is an option available and offers evern more convenience for end-cargo loading and unloading. The S-Series is in accordance with the EN 1398 Directive. Optimum safety is provided due to the fact that the S-Series is equipped with a hose burst valve aswell as an electrical emergency stop valve.

Unique Design

The S-Series Lip leveller from Stertil Dock Products offers a unique patented 1-central front cylinder construction which is more stable and in equilibrium than the conventional 2-cylinder alternatives on the market, for maximum safety. This together with the self-cleaning open lip hinge and being available in widths of more than 2,000 mm with a standard tapered lip, means that the S-Series lip leveller is a good all-round solution for any loading bay.

S-series Swing Lip Leveller

Quality that lasts a lifetime!

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