7 best oil-free air compressors

Oil-free compressors are widely used in many applications. These devices are found in the food and pharmaceutical industries, in mechanical engineering and in the home. Since the device works without oil, the output is compressed air of high quality. This is the main advantage of oil-free compressors. Today the Russian market offers a wide range of devices from different manufacturers. Our experts will help you identify the basic selection criteria.

Compressor selection criteria

Design features. Oil-free compressors differ from each other by their design.

1. Spiral models are a simple device where the main fiddle is played by two spirals. One of them is in a static position, while the other is permanently rotating. This is how the air is pumped.
2. A screw compressor consists of two chambers. One of them draws in air from the atmosphere. In the other chamber, two screws rotate in opposition to each other, pumping the air.
3. The piston-operated appliance resembles the operation of an internal combustion engine. Only the piston is driven by torque, which is transmitted through the crankshaft from the electric motor.

Power and performance.The key features of an oil-free compressor are motor power and unit capacity.

1. Small models with power of 0.3-1 kW, producing up to 180 liters of compressed air per minute, will do for working with airbrushes or cleaning of computer equipment.
2. If you need to work with pneumatic tools or conduct painting work, it is preferable to take a more powerful (1.1-1.5 kW) and productive (200-250 l / min) unit.

Receiver.Depending on the type of work performed the receiver size is chosen. The smaller the tank volume, the faster the compressed air drains and the more often the compressor has to turn on. But the large receiver makes the unit heavy and bulky, which is inconvenient for transportation or home use. Therefore, when a small amount of compressed air suitable compressors with an air receiver to 10 liters, and for extensive works better take a model with a reservoir of 20-50 liters.

Ease of movement.When a compressor often has to be moved from place to place or transported, the user pays attention to such moments as weight and overall dimensions.

1. Lightweight models (up to 20 kg) are usually equipped with legs and a handle for carrying.
2. Compressors for heavier duty are equipped with wheels for easy mobility around the workshop or garage.

The package. Compressors are distinguished by the richness of equipment.

1. Beginning masters should take a closer look at the devices, together with which comes an air hose, paint sprayer, guns for blowing and pumping, all kinds of nozzles.
2. Professionals already have the necessary accessories. Therefore, for them it seems preferable to buy only the compressor itself.

We have selected 7 of the best oil-free air compressors in our review. They are easy to find in stores in Russia. When assigning the places, the editorial staff of expertology magazine took the conclusions of experts as a basis, not forgetting the feedback from the domestic consumers.

Rating of the best air compressors without oil

Metabo Power 250-10 W OF

Rating: 4.9

Experts found the optimal combination of performance, mobility and ease of maintenance in the Metabo Power 250-10 W OF compressor. Lightweight unit (24 kg) and compact, single-phase auxiliary power. The manufacturer has made an original design, where he put in the first place the convenience of work. On the instrument panel there are connection outputs and gauges with a clearly readable scale. Of the additional options should be noted the possibility of winding the mains cord and protection against overheating. The model is the winner of our review.

Users in reviews praise the unit for quality construction, optimal layout, quiet operation. The disadvantages include a high price for a minimal configuration.

Advantages

• high-quality assembly;
• convenient control panel;
• quiet operation;
• lightness and compactness.

Disadvantages

• high price.

Kraton AC-300-50-OFS

Rating: 4.8

High efficiency stands out against competitors compressor Kraton AC-300-50-OFS. The model has a coaxial drive, which allows for low power (2 kW) to create a pressure of 8 bar. Up to 300 l/min capacity at the inlet, with compressed air from two compressors stored in a 50 l receiver. The downside of high technical parameters is a heavy weight (40 kg), which limits the movement of the device. Experts have given the model a silver lining in our review.

Russian users note such advantages of the compressor as 3-year warranty, quiet operation, rapid pressure boosting. The disadvantages they attribute to the only outlet for pneumatic tools, unreliable tightening of fasteners.

Advantages

• high performance;
• large receiver;
• quiet operation;
• 3 years warranty.

Disadvantages

• great weight;
• assembly quality is lame.

Fubag HOUSE MASTER KIT

Rating: 4.7

Fubag HOUSE MASTER KIT has the optimal ratio of output (180 lpm), weight (18.2 kg) and price. Experts consider it an excellent choice for summer cottage or garage chores. The model is equipped with an economical electric motor (1.1 kW) and a 24-liter air tank. But most of all potential buyers are attracted by its rich equipment. The manufacturer also supplies a spray gun, hose, blow-off nozzle and tire inflator together with the compressor.

The third line in our review is due to the difficulty of setting up the machine. At first start, the motor refuses to stop after reaching the maximum pressure, only the emergency valve is triggered. The problem is solved by turning the adjusting bolt counterclockwise.

Advantages

• rich equipment;
• low weight;
• good performance;
• reasonable price.

disadvantages

• needs adjustment.

ABAC Start O20P

Rating: 4.6

The Italian ABAC Start O20P compressor is known for its user-friendliness. Experts classify the model to the industrial class for its high efficiency (230 l / min), the ability to adjust the pressure and low weight (14 kg). The advantages include high air quality, corrosion-resistant coating of the air reservoir and cost-effectiveness. The single-cylinder model has a direct drive, which makes it possible to maximize the small power of the motor (1.5 kW). The disadvantage of this Italian compressor is a small air tank (6 liters).

Domestic users are still reserved about the device, they are not satisfied with the high price and a small supply of compressed air. There are no complaints about the quality of assembly, corrosion-resistant coating and performance.

Advantages

• high quality;
• lightness and compactness;
• good performance;
• economy.

Disadvantages

• high price;
• small air reservoir.

greenworks GAC6L

Rating: 4.5

The smallest direct-drive compressor is American greenworks GAC6L. It is equipped with an economical electric motor power of 0.3 kW, which provides an output of 40 l / min. The weight of the device is only 6.8 kg. The unit is ideal for working with airbrush and pneumatic staplers. The compact device has a convenient wide handle for carrying. The compressor can be operated in both vertical and horizontal positions. The amount of incoming air and pressure is adjustable.

Domestic consumers like compactness, lightness, reasonable price and usability. But the noise level does not suit the users, as well as the real maximum pressure level (6.9 bar).

Advantages

• economy;
• lightness and compactness;
• easy handling;
• pressure adjustment.

Disadvantages

• noisiness;
• inflated maximum pressure.

Fubag Smart Air

Rating: 4.4

The multifunctional device is a German development Fubag Smart Air. Compact unit is sold with 6 accessories. The manufacturer also provides a 3 m hose, blowguns for inflating and deflating tires, nozzles for filling balls, mattresses and bicycle wheels with compressed air. With a capacity of 1.1 kW unit has a capacity of 180 l / min, creating a pressure of 8 bar. However, the experts consider the main merits of the model compactness, lightness and good quality. The compressor gets the 6th place in our review because of the small air tank.

Many users find the 2L compressed air supply insufficient. The receiver empties within 8 seconds, so the compressor has to run continuously.

Advantages

• compactness and lightness;
• rich package;
• affordable price;
• high-quality assembly.

Disadvantages

• small receiver;
• noisy operation.

E

TECH KPB 190/6+ON

Rating: 4.3