The SPR-6SM spray unit with a screw pump is used for application of various pre-mixed wall putty (particle size up to 2 mm), glues and bitumen. The SPR-6SM model has a frequency converter that smoothly regulates the pump output. The device can be easily used to make differently structured putty surfaces. To properly spray materials, the spray unit must have compressed air at 400-600 L/min (3-6 bar).
The casing is made from stainless steel. The putty spray unit has a bag wringer of fibreglass-plastic. The device can be conveniently moved due to its light weight and easy disassembly.