WTZ Roßlau develops and constructs single-cylinder research engines. These modular research engines make it possible to use different piston diameters and crankshaft strokes, and extend across a cylinder volume displacement range of about 2…50 litres. Applications from commercial vehicles to ship engines can be covered in this way. The WTZ receives support from the state of Saxony-Anhalt within the framework of research projects.

Single-cylinder research motors are generally used to optimise the thermodynamics of combustion behaviour, or to validate the engine components as a precursor to complete engine development. The goal is to achieve the best level of efficiency with the lowest possible emissions and the longest service life.

WTZ Roßlau will be investigating the potential of hydrogen as a fuel for future gas engines in the next few years.

Our current programme covers the following engines:

  • Piston stroke (mm): 180 … 275
  • Cylinder bore (mm): 160 … 200
  • Max. cylinder pressure (bar): … 220
  • Effective output (kW): 100 … 270
  • Piston stroke (mm): 180…215
  • Cylinder bore (mm): 160…185
  • Max. cylinder pressure (bar): 400
  • Effective output (kW): 100…260
  • Piston stroke (mm): 240 … 300
  • Cylinder bore (mm): 160 … 240
  • Max. cylinder pressure (bar): … 220
  • Effective output (kW): 150 … 300
  • Piston stroke (mm): 320 … 450
  • Cylinder bore (mm): 250 … 350
  • Max. cylinder pressure (bar): … 400
  • Effective output (kW): 300 … 812


  • Faster development time for the multi-cylinder model series
  • Quick and uncomplicated variation of test components, saving both money and time during conversions
  • The test bay and the engine can be tailored to the particular requirements of the customer
  • Low test stand costs
  • Less need for test components and operating materials