Industrial Air Compressors

Small - Medium 100 Series 200 Series 400 Series 500 Series 1000 Series Medium - Large 2000 Series 3000 Series 4000 Series 8000 Series High Energy Saving M.I.E.M. OPTIMA Series MAXIMA Series Heat Recovery Multicomp II Maestro MicroC

Accessories for Compressed Air

HTMD Dryers
MD Dryers
Filters
Receivers
Condensate Drains

400 Series

The Range

AR	AS	ER	ERS

These rotary vane compressors with installed power of 4 and 5,5 kW, air delivery of 0,53 and 0,75 m3/min and working pressure of 10 bar are the ideal solution for small-sized industries, crafts and professional workshops that require high quality compressed air.

Technical Specifications

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Operating Principle

The air is sucked by means of a filter and passes through a modulating proportional valve that regulates the air delivery according to the demand. This valve automatically maintains the working pressure at constant levels.

Therefore, the air enters the compression chambers or vanes that the stator, the rotor, the vanes and the covers have formed. This rotor is installed eccentrically to the stator and is equipped with longitudinal grooves in which the blades slide. It is the centrifugal force that pushes the blades against the stator's wall.

An efficient oil injection system guarantees a perfect holding among the moving parts, cooling and lubrication. An oil film on the stator's inside surface prevents the moving parts from wearing by avoiding a direct contact with the blades.

Air compression is triggered by the volume reduction of the vanes in the stator during rotation. By passing through mechanical and coalescing separation stages, the mixture of compressed air and oil is purified until the maximum oil carry-over in the air does not exceed 3 ppm (parts per million).

Advantages

LOW ENERGY CONSUMPTION

The energy consumption of air delivery per m³/min of these compressors is among the lowest of their category. The ERS versions' regulating system includes modulation, shutdown and automatic start-up with pressure switch, which allows an economic operation of the system.

AUTOMATIC CONTROL OF AIR DELIVERY

Once sucked, the air passes through a valve that regulates the volume of air getting into the compressor. This valve is activated automatically by the inside pressure.

Thus, the compressor supplies the required air at constant pressure. This means that the compressor can work even without an air receiver (ER versions).

DIRECT COUPLING

This is obtained with a flexible coupling between motor and compressor without any need for belts. It is without gears or roller bearings needing maintenance.

CONTROL PANEL

The control panel is simple and practical and includes an hour counter, a start-up button and an emergency button, a safety automatic stop for motor overload and a thermostat for compressor high temperature.

THE 400 SERIES RANGE

ER: basic version
ERS: version with a 200 litre receiver
AS: version with a receiver and a plastic sound reducing cover
AR: silenced base mounted version with on/off pressure switch

AIR QUALITY

Compressed air is pulse-free and is supplied continuously and at constant pressure, thus allowing operation even without a receiver.