Open

Great performances,
even in charging.

Open meets professional needs that require large charging capacities in hot, poorly ventilated or tropical countries. It is equipped with 4 front filling connections for high pressure hoses, an intuitive control panel and an electric motor. The pumping unit, chosen from the 4 most powerful, is exposed in the rear part of the structure to ensure a better cooling cycle. For longer filter life, the Tornado high pressure dryer is recommended. Available as optional: the Presec system for filter saturation control or the SAM system for multigas analysis and remote charging panel.

4-stage high pressure pumping unit.

  • Monobloc in aluminum,
  • Gooseneck in forged steel
  • forced lubrication on the 4th stage cylinder by gear pump
  • Oil filtration
  • Aluminum connecting rods
  • Main roller bearings
  • Roller connecting rod bearings
  • 1st, 2nd and 3rd stage cylinders in special cast iron
  • 4th stage cylinder in special treated steel.
  • Stainless steel intake and exhaust valves
  • Interstage cooling pipes in stainless steel
  • Separator after the 2nd, 3rd and 4th stage
  • Safety valves after each stage
  • Oil level sensor
  • Prepared for Hyperfilter filter system

Purification at the highest level.

Placed after the last compressor separator and before the pressure holding valve, the Hyperfilter purification system enables reliable treatment of the breathing air according to DIN EN 12021¹ when using original filter cartridges. The separator present between the 2nd and 3rd stage of the purification circuit allows to extract the greatest possible humidity. The filtering capacity with inlet air at 20 ° C and 200 bar is 4300 m³.

Electrical cabinet

  • ON / OFF switch with motor protection switch.
  • Digital electronic pressure switch that stops the compressor at the final pressure.
  • Drainage of all separators between the individual stages and also of the final separator during compressor operation
  • Timer for automatic condensate drain.
  • Integrated no-load start (automatic drain every time the unit is switched off).
  • 5 liter condensate collection tank, with silencer; capacity of about 3 liters, for the ecological disposal of condensate.
  • Interstage pressure gauges display the working pressure for the individual compression stages. This pressure information allows you to check the tightness of the valves (inlet and outlet) of each stage and to quickly identify potential sources of failure.

Chassis

Open frame with vertical development designed to facilitate maintenance operations. The oil level and drain reported outside, the control console equipped with inter-stage pressure gauges, the oil pressure gauge, the internal temperature indicator, the presence alarm and incorrect phase sequence, the lack alarm oil and the start, stop and manual condensate drain commands allow easy management and maintenance of the compressor.

Simplicity comes standard.

Imagine having a compressor capable of great performance and endowed with extraordinary solidity. What would all this be without absolute simplicity in managing it?
We believe that innovation is for this: to make everything simpler.

The highest air quality is the goal of a Coltri compressor.

Air purity and quality are two essential characteristics of our compressors. The air you breathe from Coltri compressors complies with the EN 12021: 2014 standards: this is why you can work, have fun and exercise with them in absolute safety.

Specifications

Standard equipment

  • 4 filling connection to choose from DIN 232, DIN 300 or INT / YOKE 232 bar
  • 4 filling hose 1.2m long
  • Pressure maintenance valve
  • Interstage control gauges
  • Double PED certified Hyperfilter filter system
  • Cabin internal temperature with automatic switch-off
  • Automatic condensate drain
  • Automatic direction of rotation control
  • Electronic pressure switch with automatic shutdown
  • Oil level control with automatic shutdown
  • Oil pump
  • Automatic condensate drain with conveyor system in the tank
  • Frame color Blue RAL 5015

Motor

 

Open 450 ET

Open 550 ET

Open 650 ET

Open 750 ET

Three-phase electric
7.5 kW – 10 Hp
2,870 engine revolutions (RPM)
230/400 V
50/60 Hz
16.8 / 9.7 A
2,870 engine revolutions (RPM)
400/690 V
50/60 Hz
15 / 8.7 A
Three-phase electric
9 kW – 12.5 Hp
2,880 engine revolutions (RPM)
230/400 V
50/60 Hz
33 / 18.8 A
2,880 engine revolutions (RPM)
400/690 V
50/60 Hz
18.8 / 11 A
Three-phase electric
11 kW – 15 Hp
2,910 engine revolutions (RPM)
230/400 V
50 Hz
39.8 / 23 A
2,910 engine revolutions (RPM)
230/400 V
60 Hz
36.5 / 21.1 A
2.91 engine revolutions (RPM)
400/690 V
50/60 Hz
23 / 13.3 A
Three-phase electric
15 kW – 20 Hp
2,920 engine revolutions (RPM)
230/400 V
50/60 Hz
53.7 / 31 A
2,920 engine revolutions (RPM)
400/690 V
50 Hz
31 / 17.9 A
2,920 engine revolutions (RPM)
400/690 V
60 Hz
28.5 / 16.5 A

Pumping group

Open 450 ET

Open 550 ET

Open 650 ET

Open 750 ET

Range:
450 l / min
27 m³ / ha
15.9 CFM (ft³ / min)
Number of laps:
1,050 RPM
Range:
550 l / min
33 m³ / h
19.4 CFM (ft³ / min)
Number of laps:
1,250 RPM
Range:
650 l / min
39 m³ / h
23 CFM (ft³ / min)
Number of laps:
1,250 RPM
Range:
750 l / min
45 m³ / h
26.5 CFM (ft³ / min)
Number of laps:
1,420 RPM

Operating pressure

Open 450 ET

Open 550 ET

Open 650 ET

Open 750 ET

From 232 to 420 bar
3,300 to 6,100 PSI
From 232 to 420 bar
3,300 to 6,100 PSI
From 232 to 420 bar
3,300 to 6,100 PSI
From 232 to 420 bar
3,300 to 6,100 PSI

Charging times

Open 450 ET

Open 550 ET

Open 650 ET

Open 750 ET

4.30 minutes

(10 l tank empty
at 0-200 bar)

4 minutes

(10 l tank empty
at 0-200 bar)

3 minutes

(10 l tank empty
at 0-200 bar)

2.40 minutes

(10 l tank empty
at 0-200 bar)

Noisiness

Open 450 ET

Open 550 ET

Open 650 ET

Open 750 ET

95 dB (Lwa guaranteed)
92 dB (Lwa measured)
72 dB (Lpa measured)
95 dB (Lwa guaranteed)
92 dB (Lwa measured)
72 dB (Lpa measured)
95 dB (Lwa guaranteed)
92 dB (Lwa measured)
72 dB (Lpa measured)
95 dB (Lwa guaranteed)
92 dB (Lwa measured)
72 dB (Lpa measured)

Dry weight

Open 450 ET

Open 550 ET

Open 650 ET

Open 750 ET

356 kg / 784 lb
361 kg / 796 lb
365 kg / 804 lb
373 kg / 943 lb

Dimensions

Open 450 ET

Open 550 ET

Open 650 ET

Open 750 ET

90.5 x 105.2 x 153 cm
(B x W x H)
35.6 “x 41.4″ x 60.2 ”
(W x D x H)
90.5 x 105.2 x 153 cm
(B x W x H)
35.6 “x 41.4″ x 60.2 ”
(W x D x H)
90.5 x 105.2 x 153 cm
(B x W x H)
35.6 “x 41.4″ x 60.2 ”
(W x D x H)
90.5 x 105.2 x 153 cm
(B x W x H)
35.6 “x 41.4″ x 60.2 ”
(W x D x H)

Optional

Remote Charging Panel – Single press

Remote charging panel. Available with 4 connections to choose between QR DIN 232 bar, QR DIN 300 bar or QR INT / YOKE.

Included in the product:

  • 4 cylinder connections
  • 1 Manometer
  • 4 HP filling hoses 1.20 m – 3.9 ft
  • 1 HP hose 3 m – 9.8 ft

Remote Charging Panel – Double Press

Remote charging panel. Available with 2 QR DIN 232 bar connections and 2 QR DIN 300 bar connections.

Included in the product:

  • 4 cylinder connections
  • 1 Manometer
  • 4 HP filling hoses 1.20 m – 3.9 ft
  • 1 HP hose 3 m – 9.8 ft

Remote refill panel with lever taps – Single pressure

Remote charging panel. Optionally available with: 4 QR DIN 232 bar connections or 4 QR DIN 300 bar connections or 4 QR INT / YOKE DIN 232 bar connections.

Included in the product:

  • 4 cylinder connections
  • 1 Manometer
  • 4 HP filling hoses 1.20 m – 3.9 ft
  • 1 HP hose 3 m – 9.8 ft

Remote charging panel with lever taps – Double pressure

Remote charging panel. Available with 2 QR DIN 232 bar connections and 2 QR DIN 300 bar connections or 2 QR DIN 300 bar connections and 2 QR INT / YOKE connections.

Included in the product:

  • 4 cylinder connections
  • 1 Manometer
  • 4 HP filling hoses 1.20 m – 3.9 ft
  • 1 HP hose 3 m – 9.8 ft

Filling connections

DRV DIN 232 bar
DRV DIN 300 bar
DRV DIN 232 bar con manometro
DRV DIN 300 bar con manometro
DIN / INT adapter

DRV INT/YOKE 232 bar

Presec, filter control system

The Presec system is connected via a probe to the first filtering cartridge and detects its saturation status by transmitting the relative switching signals to the indicator based on the status. If the filter cartridge runs out, the compressor switches off and cannot be started until the cartridge is replaced.

SAM Multigas Analysis System

The Coltri Multigas Analysis System is a measuring instrument capable of monitoring air quality. Its application includes continuous monitoring of environmental gases, hyperbaric chambers, safety, medical, air quality.

Tornado cooler

The TORNADO chiller is an accessory for our recharging stations dedicated to professional use that operates between the separators and the filtering system. Available in 350 or 420 bar version.

HOW TORNADO WORKS

The incoming hot and humid air passes through the evaporator of this machine, where it cools.

This allows the moisture to condense. The condensate is then easily removed from the separator, ensuring a general improvement in the operation of the charging station over time and the longevity of its filters.

Allows up to 3 times longer filter life.

Filling hoses

Available in 1.5, 2, 3, 4, 5, 8 and 10 meters.

The available models of Open

(Non-standard models available upon request)

Discover Open at 360 °