RH21 / RH31 Retractable Lip Dock Levellers

The  RH21/RH31 Dock Leveller can bridge the distance and height between the loading bay and the body of the lorry, using its hydraulic tilting mechanism and telescopic lip. Its 500 mm 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. They are the perfect solution for reaching places that the RH1 Dock Leveller cannot access.

Maximum precision in the loading process.

There are 4 standard sizes for the RH21/RH31 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 2060 x (W1800/2000/2200) x H 600mm  (For RH21 dock leveller only)
  • L 2560 x (W1800/2000/2200) x H 600mm 
  • L 3060 x (W1800/2000/2200) x H 800mm  
  • L 3560 x (W1800/2000/2200) x H 800mm

*For other dimensions, please consult Customer Service.

The Embedded Pit type levellers require a sub-frame for them to be secured to the pit. The sub-frame is installed when the pit precast is created. It has the great advantage of only being joined to the pit by welding, which makes it extremely easy to replace, move and/or change it by another machine.Built-in bench | Inkema

The RH21/RH31 Dock Leveller is composed by three parts:

  • The platform consists of a 8/10mm thick tear plate top, rolled steel sections 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.

Retractable loading ramp RH21-31 | 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 RH21/RH31 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 RH21 / RH31 Retractable Lip Dock Levellers.

RH2-RH3 Dock Leveller with Retractable Lip

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