Loading Technology

PROMStahl specialises in the design, manufacture, installation and service of loading dock equipment including – hydraulic dock levellers, mechanical dock levellers, dock shelters, dock houses, industrial doors and a wide range of loading bay accessories. Thanks to many years of experience in the loading technology industry and precise knowledge of the needs, we can guarantee the best level of service to our clients.


Make safety your no 1 priority. Thanks to our sophisticated accessories your loading and unloading procedures will be improved with respect to safety, reliability, and efficiency. Optimize your material handling processes by using PROMStahl accessories.

Sectional door

Industrial gates are the elements necessary to ensure the free flow of goods in the loading process. Whether aluminum sectional doors or ISO doors - we offer the best solutions for every company.
Type PPF

Stationary drawbridge leveller

The PPF stationary drawbridge leveller is a new product of PROMStahl’s wide product range. It is suited for internal as well as for external docks and is used if small or medium differences in height between the dock edge and the lorry bed are to be compensated for. The drawbridge leveller is fixed to the ramp head by means of a steel hinge; for the loading or unloading process it is lowered onto the lorry bed by means of an operating rod. The leveller’s weight is compensated for by means of pressure springs so that the PPF can be operated without any problems by one person only. For a nominal width and a nominal length of 2000 mm the drawbridge leveller is always equipped with 2 operating rods to allow operation by two persons.


When not in use the leveller is fixed in vertical position at the ramp edge and locked in this position by means of an automatic safety device. All steel parts of the PPF leveller are available hot-dip galvanized.


The PROMStahl drawbridge leveller meets the requirements of the most recent European standard EN 1398.

Technical drawing

1 = Platform

2 = Steel lip

3 = Pressure spring unit

4 = Operating rod

5 = Safety device

6 = Ramp head

1.250 1.500, 1.750, 2.000 175 245
1.500 1.500, 1.750, 2.000 225 295
1.750 1.500, 1.750, 2.000 265 340
2.000 1.500, 1.750, 2.000 310 390


All dimensions in mm. Load capacity for all sizes 60 kN.

NL = Nominal length, NW = Nominal width, A = Lev. equal. above dock, B = Lev. equal. below dock