Pressure Blast Machine for Dry Abrasive Blasting

    A pressure blast machine is a dry abrasive blasting system that holds abrasive in a pressurised vessel and feeds it, under compressed air, into the blast stream through an abrasive valve. Simple in construction and broad in application, it is the workhorse of industrial rust removal, paint stripping, deburring and surface preparation.

    The impact of the abrasive strips mill scale, rust, weld spatter and old coatings in a single pass, and cuts a uniform surface profile at the same time. That profile is the anchor pattern the coating keys into, and it governs adhesion and the service life of the coating system. Because blasting is carried out in the open or inside a blast room rather than in a sealed cabinet, one unit serves hardware and fastener production, mould and die shops, structural steel fabrication, casting cleaning and stone finishing alike.

    With steel grit in the G-12 to G-16 range (SAE J444) and a working pressure of 6 to 8 bar (87 to 116 psi), the machine will typically reach Sa 2½ (ISO 8501-1) or SSPC-SP10 / NACE No. 2 on the workpiece.

Core Features

    Pressure feed rather than suction: higher abrasive velocity and cleaning rate on the same compressed air supply

Few moving parts — no turbine, no conveyor, minimal wear points

One unit handles any part that fits the blast area, whatever its size, shape or material

Pairs with a dust collector to hold dust emission within workplace limits

Consumables limited to abrasive and compressed air; wear parts are the blast nozzle and abrasive valve

Best suited to batch work and heavy surface preparation

Typical Workpieces

    Rust removal, paint and coating stripping, deburring, satin finishing and surface preparation before painting or powder coating — on hardware and fasteners, moulds and dies, cast iron and aluminium alloy castings, structural steel, plate and pipe, stone and glass