Road construction machines


  • Bitumen spray technology

SMA 500GM bitumen spray machine

For spraying primer and bitumen emulsions


  • Bitumen spraying machine on a tandem trailer chassis with an insulated 500 L mountable tank including vehicle lighting, car coupling, maximum speed 100 km/h
  • Binding material pump with pressure relief valve and hydraulic drive to enable back suction and circulation of binding material, no direct belt drive.
  • The exhaust from the diesel engine heats the binding material pump and the 500 L binding material tank is warmed by a propane gas burner system. The manual gas burner system is equipped with all safety devices and piezoelectric ignition.
  • The insulated tank has a removable lid with an inspection hole, thermometer and a float level indicator FULL-EMPTY.
  • A compressed air cleaning system with a small compressor and a solvent wash unit are included for cleaning the binding material pump and the bitumen hoses.
  • The delivery includes a 5 m spray hose and spray lance for applying the binding material.


Technical details:

Description SMA 500GM on trailer chassis SMA 500GM Stationary designed
Item no. 0345 0000 0345 0100
Diesel engine Product: Hatz 1B20 with electric starter Product: Hatz 1B20 with electric starter
Diesel engine power 3,1 kW at 3.000 1/min 3,1 kW at 3.000 1/min
Drive of the binding material pump Hydraulic Hydraulic
Max. capacity of binding material pump Approx. 16 L/min Approx. 16 L/min
Power of propane gas heating-system Approx. 20 kW Approx. 20 kW
Propane gas bottle holder For one 11 kg propane gas bottle For one 11 kg propane gas bottle
Compressed air cleaning system Electric compressor with 20 L pressure tank Electric compressor with 20 L pressure tank
Approx. length 3.800 mm 2.200 mm
Approx. width 1.700 mm 1.200 mm
Approx. height 1.600 mm 1.100 mm
Approx. deadweight 880 kg 450 kg
Total permissible weight 1.300 kg —–

Subject to technical changes.

Thanks to many years of cooperation of Mr. Maximilian Straßmayr, co-founder and former managing director of Straßmayr GmbH Adlwang Austria, who held the position as the technical manager in the field of bitumen emulsion and patch technology, we successfully established ourselves in the market and complete numerous projects with success.

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