RH23 / RH33 Retractable Lip Dock Levellers

The RH23/RH33 Dock Leveller can bridge the distance and height between the loading bays and the body of the lorry, using its hydraulic tilting mechanism and telescopic lip. Its 500mm or 1000 mm telescopic hydraulic lip is long enough to allow the dock leveller’s platform to rest firmly on the lorry’s trailer.
This type of dock leveller is especially suitable for facilities where thermal insulation, both internal and external, is very important.

RH31 Loading Ramp | Inkema

RH23-RH33 Loading Dock | Inkema

The Box Model without letter box uses the leveller as a precast element. This system saves costs and time in installing the leveller, as no pit is required. The work involved in preparing the pit beforehand is not necessary, thus making civil work easier and less complicated, and maintaining the same functions and operability as the other systems, such as the Embedded or Suspended type.

Box model without hatch | Inkema

Often it is necessary to consider that trucks have their own loading bridge. For this reason Inkema has also designed theBox Model with a space for the own back bridge of a truck during the loading and unloading of the goods, using a hollow precast element structure. The Precast structure is installed before the floor in the industrial building is completed. A space is left underneath the structure of the Box Model leveller. This allows you to obtain the benefits of the Suspended model and the functionality of the Embedded model, as well as simplifying civil engineering work.

Box model with lost formwork | Inkema

There are 4 standard sizes for the RH22/RH32 Dock Leveller, with different widths for the telescopic lip. We also design and manufacture dock levellers that are up to 4500mm long x 2400 wide x 900 high*.

  • L 2070 x (W 1800/2000/2200) x H 605mm  (For RH23 dock levellers only)
  • L 2570 x (W 1800/2000/2200) x H 605mm 
  • L 3070 x (W 1800/2000/2200) x H 805mm  
  • L 3570 x (W 1800/2000/2200) x H 805mm  

*For other dimensions, please consult Customer Service

The Inkema RH23/RH33 Dock Leveller is composed by three parts: 

  • The platform has a 8/10 mm tear plate top, rolled steel sctions and lateral toeguards.
  • Compact and robust lip made of 13/15 mm thick steel tear plate. The lip is hinged and its end is milled, allowing it to fit against the lorry perfectly and smoothing the lorry’s passage.
  • The lower structure is made from rolled steel sections and the platform and hydraulic group are installed on it.

RH23-RH33 folding loading ramps | Inkema

  1. Telescopic lip (500-1000mm) designed to fit perfectly against the lorry.
  2. Hydraulic equipment: electric motor, hydraulic pump and tank.
  3. Grooved comb system on the front of the machine. Reduces structural stress and increases the life of the dock leveller.
  4. Toeguards for feet protection and black & yellow safety bands.
  5. Lifting cylinders with Ø50mm piston rod and anti-fall safety valve.

All the Inkema Dock Levellers and loading bridges have been calculated and designed pursuant to the following European directives and standards.

The RH23/RH33 Dock Leveller has the following safety features:

  • Emergency stop: Activated by switch or power failure.
  • Fixed and movable toeguards: Prevent feet from being trapped between the platform and the pit.
  • Side bands: Help reduce the risk of collisions.
  • Safety bar: Prevents it from closing during maintenance.
  • Anti-fall safety valves inside the hydraulic cylinder.
  • Platform with anti-slip tear surface on top.


Ask us for more information about RH23 / RH33 Retractable Lip Dock Levellers.


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