FIAC Cosmos 255 - Electric Air Compressor - 50L - 2 HP Motor

This FIAC Cosmos 255 electric coaxial air compressor is characterised by the pumping unit directly mounted on the rotating shaft of the electric motor.

This constructive solution allows to reduce the dimensions and eliminates the power loss caused by the transmission parts. The plastic housing that wraps around the pumping compressor unit, conveys air to cool the pumping unit head and increases the duration of the mechanical parts and the efficiency of the entire unit in terms of amount of air produced, as well as preventing accidental contact with all the moving parts.

The motor features a cast aluminium cylinder head and delivers a maximum power of 2 Hp.

The pumping unit is made of cast aluminium, while the cylinder is made of cast iron.

The lubrication system, known as "splash” system, ensures the circulation of the oil within the pumping unit.

The air compressor features a pressure switch that starts automatically at a pressure of 5 bar and recharges the tank up to 8 bar.

Air output capacity: 170 L/min

Maximum pressure: 8 bar (116 psi)

Noise emissions: 95 dB (A)

Power supply: 220V

Max power: 2 Hp

Electric motor speed: 2850 rpm

The induction motor is characterised by a very long service life and low maintenance requirements.

In fact, this motor is brushless, the brushes being the main component subject to wear in electric motors. The absence of this component grants high durability to the motor.

It is regarded as a top product in terms of reliability, low noise, durability, energy efficiency and maintenance.

Focus on the motor fan

Focus on the motor plastic housing: the black colour of the housing may be subject to changes (e.g. blue or white)

Air intake flow: 170 L/min
Cylinder head type: single cylinder with cast iron cylinder
Suction type: single stage
Lubrication: oil

FIAC technology oil-lubricated coaxial pumping unit made with top quality materials that offer high reliability and wear resistance.

Cylinder made of cast iron

Cylinder head and pumping unit in cast aluminium

The tank has a capacity of 50 L.

Maximum pressure: 8 bar

The air compressor is equipped with a pressure adjusting knob for the output air pressure that can be checked by means of a pressure gauge located immediately below it.

The air compressor also features a pressure switch that starts automatically at a pressure of 5 bar and recharges the tank up to 8 bar

Equipped with two pressure gauges:

• tank air pressure gauge
• output pressure controlled by regulator

Equipped with additional output joint on the tank

It features side handles to ease transport

Focus on the front support foot

Air release valve

Large front handle for transport

Recommendations for use

To ensure maximum durability and efficiency of the machine, the following instructions must be strictly observed. Failure to do so constitutes improper use, with a serious risk of damage to the product (such damage is not covered by the warranty).

• Tank maintenance and condensate drainage: Moisture contained in the intake air accumulates as condensate at the bottom of the tank, due to the thermal processes generated during compression. Drain the condensate after each use by operating the lower drain valve, turning it carefully to avoid sudden discharges of compressed air and liquid. Failure to carry out this maintenance task may lead to internal corrosion of the tank. Furthermore, condensate accumulation reduces the effective air volume, causing abnormal motor restart cycles and the transfer of impurities to connected tools, with the resulting risk of premature damage to the entire system.
• Suitability of extension leads: Do not use unsuitable extension leads. Given the  high motor power, it is essential to ensure a constant power supply. Undersized cabling causes voltage drops that prevent the motor from reaching the correct speed, leading to abnormal overheating and permanent damage to electrical components. Use only cables with a minimum cross-section of 2.5 mm². This cross-section is necessary to handle the high current absorption, especially during start-up.

Unwind the extension lead completely before use. Never use the machine if the power cable is partially coiled or bunched up. Heat build-up due to induction can melt the cable and cause serious electrical damage to the motor or a fire hazard.

• Operating position:  The air compressor must only be installed in environments free from humidity, preferably in dry locations that are fully protected from weather exposure and potential water splashes. Adequate ventilation must be ensured by maintaining a clearance of at least 50 cm between the machine and any wall or obstacle, in order to allow for proper air circulation and effective heat dissipation. The installation area must also guarantee a high level of air cleanliness and be free from dust, fumes, chemical vapours, or flammable gases. Failure to comply with these requirements exposes the product to the following risks:

1. Critical overheating: insufficient ventilation or installation in confined spaces impairs the cooling of the motor and pump assembly, resulting in reduced service life.
2. Safety risks: the presence of volatile or flammable substances may compromise the structural integrity of the machine or the safety of the operator.

• Obstruction of cooling and ventilation systems:  During machine operation, the air compressor must not be covered with sheets, boxes or makeshift casings, as such barriers prevent the air flow required for cooling the internal components. Blocking the ventilation slots causes a rapid rise in operating temperature, with the consequent risk of irreversible damage to the motor and the seals of the pumping unit. If protective covers are used during periods of inactivity, these must be completely removed before any start-up attempt to ensure the full efficiency of the heat dissipation system, thus preventing critical overheating.
• Power supply and connections suitability: The air compressor must be connected exclusively to an electrical socket rated for the motor’s nominal power. Avoid using unsuitable sockets or connections located too far from the main electrical system. Failure to comply with these requirements exposes the machine to insufficient voltage conditions, seriously compromising the start-up phase, causing start-up difficulties, abnormal stresses and the sudden tripping of protective devices (circuit breakers or residual-current devices).
• Shutdown procedure and static pressure management: It is recommended not to leave the tank pressurised during periods of inactivity. After switching off (OFF position), the residual pressure must be released and the drain valve opened, leaving the tank empty in order to promote the evaporation of internal moisture. Maintaining constant pressure, in fact, promotes condensation build-up and accelerates the deterioration of pneumatic components, such as diaphragms and valves, drastically reducing the overall reliability of the system and its operational life.
• Checking the oil level: Before each use, check the oil level in the pumping unit. The level must fall within the range indicated by the oil level indicator or the dipstick, if fitted. Do not operate the air compressor if the oil level is too low, too high or if the oil is contaminated. An insufficient oil level can cause overheating, accelerated wear, seizure of the pumping unit and damage not covered by the warranty. An excessive oil level can cause leaks, oil leakage and oil carry-over into the compressed air circuit.

Operating position: Use the air compressor exclusively in a vertical position, on a flat and stable surface. Use on sloping surfaces may compromise the correct lubrication of the pumping unit.