Munk Schmitz - Strahlanlagen & Strahltechnik

Problast 40 DV
(4.8 mm blast nozzle, vacuum pump)

Machine type
Mobile pressure-fed air blasting machine with blast gun (closed-circuit blasting machine)

Rust removal, descaling, paint stripping, weld andmould cleaning, roughening and etching of rollers


  • Blast gun for simultaneous blasting and recovery of blast media and dust
  • Pressure vessel / Storage hopper for reclaimed blast media
  • Reclaimer (air cyclone) for separation of re-usable blast media from the recovery air flow
  • Dust collector with dust bin for dust cleaning of recovery air flow
  • Vacuum generator for generation of recovery air flow
  • Maintenance unit for control of blasting pressure

Blasting method: pressure-fed
Vacuum generation: vacuum pump
Blast cycle duration (max.): 20 – 25 min

Air consumption (at 6.3 bar): 1.4 m³/min
Energy consumption: 3 kW
Coating: RAL 5015

Dimensions (L/W/H): 1,100/600/1,850 mm
Empty weight: 280 kg
Hose length: 6 m

Blast gun: Ø 61 mm
Blast nozzle (boron carbide): Ø 4.8 mm
Effective blast track width: 18 – 20 mm

Blast media grit size recommended:

  • metallic 0.2 – 1.1 mm
  • non-metallic 0.1 – 1.1 mm

Blast media throughput at 6 bar:

  • metallic 4 kg/min
  • non-metallic 2 kg/min

Blast media storage capacity with 30 l vessel:

  • metallic 100 kg
  • non-metallic 50 kg

Filter area: 5.5 m²
Dust separation efficiency: > 99.9 %

Which kind of blast media?

With closed-circuit blasting systems all kinds of recyclable blast media can be used such as aluminium oxide, glass beads, ceramic beads, steel grit, plastic media etc. One-way abrasives such as slags are not suitable.

Blast media

Extensions à la Carte

Problast® machines may be equipped with various options including: