90 litre air compressors
Ninety litres is the size from which low-speed, V-belt-driven twin-cylinder machines dominate our range — built for longer work than small workshop compressors. Fourteen of them still plug into a standard 230 V socket; the rest need a three-phase supply.
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Why 90 litres
ABAC and ATMOS in particular build their workshop compressors on 90 l tanks; WALTER has a vertical ninety-litre tank and a horizontal hundred-litre one. In practice you will not notice ten litres either way — if you are looking for a machine ‘around a hundred’, also take a look at 100 litre air compressors.
Compared with a fifty-litre machine, a ninety-litre one has roughly double the reserve and, above all, different machinery: the belt slows the pump to 750 to 1,400 rpm, the cylinders run cooler and the compressor copes with longer work with an impact wrench, a grinder or a spray gun.
What you will find in this size
ABAC twin-cylinder workshop machines
Most machines come from the ABAC Pro Line, in Extensive, Expert and Export versions, plus the oil-free ABAC Expert Zero for 230 or 400 V. The soundproofed A29B in a cabinet is meant for places where people work right next to the compressor.
Cast-iron pumps
The ATMOS Perfect 4/90 gives 650 l/min, the most in this size. The cast-iron WALTER VWK models have a vertical tank and take up less floor space. Both brands use cast-iron cylinders, which dissipate heat better.
Higher pressure
The 90 l tank also carries two-stage machines: the ABAC A49B at 11 bar, the B59B at 15 bar for mobile tyre fitting and the ABAC Tech ATH at 15 and 20 bar with a continuous-duty motor. Why pressure above 10 bar calls for two compression stages is explained under two-stage air compressors.
How to choose
Work out the air consumption of all the tools that will run at the same time, and add a margin. The machine’s air output — not its intake — should be higher than that demand. A step-by-step guide is in our article Choosing the right compressor size in 3 steps. If even 90 litres is not enough, the next step up is a 150 litre air compressor; all sizes are listed under air compressors.
Frequently asked questions
- Is a 90 l or a 100 l compressor better?
- The difference in air reserve is negligible. Choose by the machine — its air output, voltage and drive — not by ten litres of tank.
- Can a 90 l compressor run a spray gun?
- It depends on the gun and the machine’s air output. Belt-driven twin-cylinder machines with around 250 l/min or more can handle a standard spray gun, with breaks for preparation.
- Is there a 90 l compressor for 230 V?
- Yes, fourteen machines with 1.5 to 2.2 kW. More powerful machines with 3 and 4 kW need a three-phase 400 V supply.
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Black Wind piston compressors
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ATMOS piston compressors
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Walter reciprocating compressors
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Piston compressors ABAC
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Piston compressors ABAC
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Expert Zero compressors
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ABAC reciprocating compressors
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Quiet compressors Super Silent OS
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INDUSTRIAL TECH compressors
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CLR reciprocating compressors
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Combustion compressors
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Screw compressors
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Pressure vessels
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Compressor accessories
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Product sorting
List of products
Oil-lubricated compressor with the biggest tank in the range: 2.2 kW L30P pump from an ordinary socket, 310 l/min, 10 bar, horizontal 90 l tank, 63 kg on wheels. Regulator, two...
The A39B pump on the biggest tank in the range: 2.2 kW on 230 V, 355 l/min at 950 rpm, 10 bar, 90 l tank on castors, 80 kg. Reserve for longer bursts, aftercooler, regulator; 95...
The most powerful single-stage machine in the range: A39B with 3 kW on 400 V, 486 l/min at 1,300 rpm, 10 bar, 90 l tank on castors, 94 kg. Regulator, two gauges, DN 7.2 quick...
The ninety with the A29B pump: 1.5 kW on 230 V, 178 l/min at 750 rpm, 10 bar, 69 kg on castors. In stock; moulded belt guard, aftercooler, regulator; noise 93 dB Lwa and 73 dB...
The only vertical WALTER for a standard socket: the upright tank stands against a wall and occupies a footprint of 63 × 54 cm. Its 340 l/min air delivery is enough for blowing,...
A vertical version for a workshop short of floor space: the upright tank takes up a footprint of 63 × 54 cm and can stand against a wall. The cast-iron twin delivers 340 l/min...
Three-cylinder performance on a footprint of 63 × 56 cm: a vertical version for a workshop that needs more air than the smallest class but has nowhere to put a horizontal...
The only machine on offer with a built-in generator. It supplies compressed air and electric power at the same time.
The smallest complete assembly of the range: a two-stage airend mounted on a horizontal ninety-litre receiver. Place it, connect the supply and the pipework.
A complete assembly: a two-stage airend mounted on a horizontal ninety-litre vessel. The machine arrives assembled — it only has to be placed and connected.
A complete assembly with a horizontal ninety-litre receiver and a direct start. The strongest machine of the range you can place and connect without dealing with star-delta.
The smallest and shortest machine in the category. A ninety-litre tank fits even where there is no room for a two-hundred-and-seventy. A finished assembly, 93 kg.
Low-speed V-twin compressor with the biggest tank in the V30 range: horizontal 90 l tank, 2.2 kW from an ordinary socket, 1,450 rpm, 330 l/min displacement, 10 bar, 72 kg on...
A rotary screw compressor you plug into an ordinary socket — it runs on 230 V, so no three-phase supply is needed. It delivers 272 l/min at 10 bar and measures only 59 dB(A)....
A two-cylinder single-stage ATMOS Perfect 2,2/90 S compressor with a cast-iron LB 30 pump unit, on a vertical 90 l air receiver. It delivers 310 l/min of compressed air at 10...
A three-cylinder single-stage ATMOS Perfect 3/90 S compressor with a cast-iron LB 40-3 pump unit, on a vertical 90 l air receiver. It delivers 408 l/min of compressed air at 10...