SAPI Profi
PROFI injector sandblasters · for workshop and hobby
A small sandblaster for your compressor. Just get started.
The easy way into sandblasting: PROFI injector blasters work with an ordinary workshop compressor from 300 l/min. For rust, old paint and smaller areas, in the hobby workshop as well as in daily professional use.
Made in Germany · since 1970
- from 300 l/minair consumption, suits a workshop compressor
- 25 or 50 Lupright or on wheels
- Boron carbide nozzleservice life up to 1.000 hours
- from 12 kgeasy to carry and store
Principle
How an injector sandblaster works
With an injector machine the hopper is not pressurised. The compressed air only creates suction in the blast head, drawing the abrasive in. That keeps the technology simple, robust and economical.
- 1
Fill
Pour abrasive into the open hopper. The screen holds back coarse debris such as stones or packaging scraps.
- 2
Connect
Connect the air hose to the compressor with the quick coupling. 300 to 800 l/min is enough.
- 3
Blast
Squeeze the pistol grip: air flows through the blast head, creates suction in the mixing chamber and carries the abrasive onto the surface.
- 4
Stop
Release the grip: without air flow there is no suction, and the blast stops instantly.
Injector or pressure blaster?
| Injector (PROFI) | Pressure blaster | |
|---|---|---|
| Hopper | unpressurised, open | pressure vessel |
| Air consumption | 300–800 l/min | from approx. 1,500 l/min |
| Compressor | workshop compressor | site compressor |
| Ideal for | smaller areas, touch-ups | large areas, continuous use |
For large areas and heavy-duty work, our MAMMUT pressure blasting machines are the better choice.
Models
PROFI 1 and PROFI 2
Same technology, same equipment. You simply choose the hopper size: compact and upright, or larger and on wheels.
Injector blaster, 25 litres
PROFI 1
The compact entry model: upright 25-litre hopper on a sturdy tripod, weighing just 12 kg. Ideal for smaller parts and occasional jobs.
- 25 L (unpressurised)
- approx. 12 kg
Injector blaster, 50 litres
PROFI 2
More capacity, less refilling: 50-litre hopper on a mobile frame with rubber wheels and push handles.
- 50 L (unpressurised)
- approx. 19 kg
| PROFI 1 | PROFI 2 | |
|---|---|---|
| Abrasive hopper | 25 L (unpressurised) | 50 L (unpressurised) |
| Design | upright | mobile |
| Air consumption | 300–800 l/min | 300–800 l/min |
| Max. working pressure | 12 bar | 12 bar |
| Blast nozzle | Boron carbide, ø 8 mm | Boron carbide, ø 8 mm |
| Start and stop | Pistol grip | Pistol grip |
| Weight | approx. 12 kg | approx. 19 kg |
| Dimensions | Height 700 mm, hopper ø 300 mm | Height 1,050 mm, hopper ø 450 mm |
Other nozzle diameters on request. Blasting performance depends on the compressor, abrasive and surface.
How it works
Cutaway of the injector blaster
Press the lever, change the air pressure and follow the path of air and abrasive.
Simplified illustration: The animations only explain the working principle. They do not show the machines to scale, and the values and sequences displayed are not measured. The technical data of each machine is what counts.
Schematic illustration for explanation, not measured values.
Injector sandblasting machine: simple and economical
The hopper is not pressurised. The compressed air runs straight through the air nozzle into the blast head and creates suction in the mixing chamber. The blast hose enters the mixing chamber at an angle. This draws the abrasive in well and the air stream carries it along, which improves suction and output.
- CompressorPROFI 1 and PROFI 2 need just 300 to 800 l/min, at a maximum of 12 bar.
- Air hoseCarries the compressed air straight into the blast head.
- Hopper (unpressurised)The abrasive sits in an open hopper, and a screen holds back coarse particles.
- Blast hoseSuction draws the abrasive in and leads it into the blast head at an angle.
- Pistol gripSqueezing the grip starts the air flow and with it the blasting. On release everything stops at once.
- Air nozzle and mixing chamberThe air nozzle accelerates the air, and in the mixing chamber it picks up the abrasive.
- Boron carbide blast nozzleø 8 mm, service life of up to 1,000 hours, even with corundum. Other diameters on request.
Applications
What a PROFI is good for
Rust removal
Remove rust from classic-car parts, wheel rims, garden furniture, gates and tools.
Paint stripping
Strip old paint and coatings before repainting.
Touch-up work
Treat small areas, weld seams and individual spots with precision.
Glass bead blasting and matting
Use glass beads to give surfaces an even matt finish and clean them gently.
Deburring
Cleanly remove burrs and break edges on workpieces.
Wood and stone
Texture wood surfaces, remove old paint, clean and work stone.
Suitable abrasives
- Slag
- Garnet sand
- Glass beads
- Brown fused alumina
- White fused alumina
- Not for metallic abrasives
Scope of supply
Unpack, connect, blast
Included
- Hopper with 25 or 50 litre capacity
- Blast head with boron carbide blast nozzle ø 8 mm
- Pistol grip for starting and stopping
- 3 m blast hose, highly abrasion-resistant, 13 × 3,5 mm
- 5 m air hose 10 × 3,5 mm with quick coupling
- Abrasive screen
Good to know
- Compressor300 to 800 l/min at a maximum of 12 bar. The more air the compressor delivers, the stronger the suction.
- AbrasiveFor all common mineral abrasives and glass beads, not for metallic abrasives.
- ProtectionOpen blasting creates dust. Work outdoors or in a blast cabinet and wear a blasting helmet and protective clothing.
- NozzlesThe boron carbide nozzle lasts up to 1,000 hours. Other diameters are available on request.
More power
PROFI or PROFI TURBO?
The PROFI TURBO machines are the further development of the PROFI. With a more powerful blast head and a high-flow inlet valve, they blast considerably harder, but they also need more air.
- More powerful blast head with boron carbide nozzle ø 10 mm
- High-flow inlet valve
- Hand lever directly on the blast hose, as on pressure blasters
- Air consumption 600 to 1,000 l/min
Frequently asked questions
Questions about injector sandblasters
What compressor do I need for a PROFI sandblaster?
PROFI 1 and PROFI 2 need 300 to 800 litres of air per minute, with a maximum working pressure of 12 bar. An ordinary workshop compressor is enough. The more air it delivers, the more powerful the blast.
What is the difference between an injector and a pressure blaster?
With an injector machine the hopper is not pressurised; the air only draws the abrasive in at the blast head. That needs little air and is simple. A pressure blaster pushes the abrasive out of a pressure vessel and covers large areas faster, but needs a much bigger compressor.
PROFI 1 or PROFI 2: which one is right for me?
The technology is the same. The PROFI 1 has an upright 25-litre hopper and weighs only 12 kg. The PROFI 2 holds 50 litres and sits on a mobile frame, so you refill less often.
What does the PROFI TURBO version offer?
The TURBO machines have a more powerful blast head with a 10 mm nozzle, a high-flow inlet valve and a hand lever on the blast hose. They blast harder but need 600 to 1,000 l/min.
Which abrasives can I use?
All common abrasives such as slag, garnet sand, glass beads, brown fused alumina or white fused alumina. Metallic abrasives are not suitable for injector machines.
How long does the nozzle last?
The boron carbide blast nozzle has a service life of up to 1,000 hours, even with aggressive abrasives such as corundum.
What is included?
Hopper with screen, blast head with boron carbide nozzle ø 8 mm, pistol grip, 3 m blast hose and 5 m air hose with quick coupling. All you need is a compressor, abrasive and protective equipment.
Can I sandblast indoors?
The PROFI machines are open blasters, which creates dust. Blast outdoors or in a blast cabinet. For dust-free work without a cabinet, we offer our vacuum-recovery blasters.
Larger areas to blast?
Compare pressure blasters, fine blasters and dust-free vacuum-recovery blasters, with machine finder and air consumption calculator.
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