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Mattie 450 75kw Compressor

Special Offer

Refurbished Price [?]
£ 4,950 (+ VAT)
Special Price
£ 3,950 (+ VAT)
Special Price (sold as seen) [?]
£ 1,950 (+ VAT). Available for immediate collection.
Special offer ends
14 December 2017 14:00 GMT while stocks last
Stock No
AT0104J
Model
ERC 450
Serial
3804
CFM/Kw
460 @ 115 psi // 75
Compressor Type
Rotary Vane - 41,572 run hours
Other Info
Auto load / offload operation
Location
Our central warehouse, Aldridge, West Midlands
Weight (kgs)
kg
External Dimensions (WxDxH mm)
2310 x 850 x 1260

Description

Mattei 450 rotary vane compressor

Today, Mattei's rotary vane compressors benefit you from more than 50 years experience in the design and construction of rotary vane compressor technology. This has resulted in the continuing improvement of both the performance and operation of these exceptionally durable compressors.

Unrivalled Performance & Durability:

Mattei advancements in technology and materials offer the best value in premium quality air compressors found anywhere. Imagine “bearingless” air ends that last up to 100,000 hours (2 to 3 times the life of rotary screw compressors) without needing an overhaul, unrivalled super quiet operation and the most energy stingy designs in the industry. 

Proven Design

MATTEI compressors distinguish themselves through durability, reliability and efficiency featuring a modern compact design and exceptionally quiet operation. In MATTEI compressors all the main components, such as oil chamber, separator, air filter, non return and pressure regulating valve, are an integral part of the machine and make up a single unit. The compressor is directly connected to the electric motor to form a single unit that compresses air at only 1,800 rpm or less. The cooling assembly, includes both oil cooler and after cooler. These compressors are 'ready for use' air stations, only needing to be connected to the electrics and air main.

Product Quality:

Quality is ensured by the use of the best possible materials. The rotor is made from spheroidal cast iron; the stator from Meehanite® cast iron and the vanes from special cast iron to ensure long operating life and stability. The vanes are lightened by deep parallel holes and a curved surface to ease their sliding in the stator slots and are real mechanical 'jewels'. Benefit from oversized dry air intake filters; the oil separator filter (rated 10,000 hours) features borosilicate fibers; oil and compressed air radiators made from aluminum; the coupling is flexible with rubber elements and all O-rings are made from Viton®.

Precision machining is carried out with the most modern and precise production tools, and accurate dimensional checks are made of all components before assembly. Every finished Mattei air compressor is subject to strict international testing standards (ISO 1217) to ensure consistently high product quality and performance.

Mattei compressor operation

The air is drawn in 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).
 
Finally the air is cooled in the radiator and the condensate is eliminated by a condensate drain.

Maintenance

Maintenance operations only include changing the oil at predetermined intervals, cleaning or replacing the air filter and cleaning the radiator. Benefit from half the oil volume of rotary screw types, and oil separating filters that can reach 10,000 working hours, for significant savings over the life of the machine.

Reliability

These compressors are designed for industrial use 24 hours a day and 12 months a year at constant pressure. Mattei compressors' running often exceeds 100,000 working hours.

Bearingless airend

Much like the connecting rods on your engines crankshaft, the heart of the Mattei rotor stator unit (RSU) is the rotor which is simply supported by two (2) white metal Babbitt bushings that routinely deliver >100,000 hours of life. Screw type compressors use up to six (6) radial and thrust bearings engineered for only 50,000 hours (ASME B-10) of life.

Operating mode

Thanks to a modulating proportional intake valve that supplies air at constant pressure, these compressors can even work without air receivers. This method automatically adapts to system demands and is ideal for applications with little storage or continuous high air demands.

Automatic loading

Load/Off Load maintains line pressure within a minimum/maximum pressure range, and the compressor may stop and restart according to air demand. Ideal for applications with adequate air storage tanks or large variations in air demand.

Load regulation

This regulation allows Mattei compressors to modulate within a set pressure range (for example, ± 4-5 psi). Should the air demand decrease, the compressor will off-load and stop, with evident energy savings. Ideal for applications with little storage and large variations in demand.

pdf icon Print / Download Mattie 450 75kw Compressor Datasheet

Photographs taken prior refurbishment. Our refurbishment service is not available on all machines.