Coltri HD Silent Compressor

Brief product information

Imagine a compressor with large capacity and outstanding durability. What would all this be without absolute ease of use? We believe that's what innovation is all about: making everything easier to realise.

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Silent reaches new heights in terms of sound insulation, managing to stay below the 70 dB threshold during operation. It is built to meet the needs of intensive use and when large capacities are required for refuelling. It is equipped with 4 front feed connections with high pressure hoses and an intuitive control panel. It also has an electric motor and powerful pump units. For longer filter life, the Tornado high pressure dryer is recommended. Optional Presec system for filter saturation control or SAM system for multi-gas analysis and remote filling panel. 4-stage high pressure pump unit.
Technical Specification

Type of gas
Breathing air EN 12021 - Nitrox 40 % max O₂ - Helium - Nitrogen

Suction pressure
Atmospheric, max 300 millibar

Pressure classification
250 bar / 330 bar / 360 bar

Drift pressure
232 bar / 300 bar / 330 bar

Maximum working pressure
420 bar

Permissible temperature range
-10 °C ÷ +40 °C

Authorised height range
0 ÷ 1 500 m above sea level

Maximum authorised gradient
15°

Design
Silenced

Operating voltage, standard
400 V, 50 Hz

Other operating voltages
On three-phase motors at 60 Hz, the power (kW/hp) increases by 20 %.
230 V, 50 Hz / 230 V, 60 Hz / 440 V, 60 Hz

Oil
Synthetic oil Coltri ST 755

Oil change interval
1 year / 1 000 hours

Aries
Steel - Frame colour black RAL 9005 - Powder coated - Scratch resistant

Flow rate of the pump package
Measured when filling a 10 litre bottle from 0-200 bar, tolerance +/- 5 % at +20 °C room temperature.

450 ET
450 l/min
27 m³/h
15.9 CFM

550 ET
550 litres/min
33 m³/h
19.4 CFM

650 ET
650 litres/min
39 m³/h
23 CFM

750 ET
750 litres/min
45 m³/h
26.5 CFM


Cooling, air flow

450 ET
4 050 m³/h

550 ET
4 820 m³/h

650 ET
4 820 m³/h

750 ET
5 590 m³/h


Weight
Standard model. Dimensions and weight may vary depending on accessories.

450 ET
446 kg
983 lb

550 ET
451 kg
994 lb

650 ET
455 kg
1 003 lb

750 ET
463 kg
1 020 lb


Dimensions
(W x D x H)
93 x 124.5 x 168.5 cm
36.6 x 49 x 66.3 inches

Effect

450 ET
7.5 kW
10 hp

550 ET
9 kW
12.5 hp

650 ET
11 kW
15 hp

750 ET
15 kW
20 hp


Engine type

450 ET
Three-phase electric

550 ET
Three-phase electric

650 ET
Three-phase electric

750 ET
Three-phase electric


Operating voltage / Frequency
Different voltages and frequencies are available on request.

450 ET
400 V, 50 Hz

550 ET
400 V, 50 Hz

650 ET
400 V, 50 Hz

750 ET
400 V, 50 Hz


Marking current

450 ET
15 A

550 ET
18,8 A

650 ET
23 A

750 ET
31 A


Engine speed (RPM)

450 ET
2 870

550 ET
2 880

650 ET
2 910

750 ET
2 920


Protection class
IP55

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