Check out the 360 view of the unit below
Superior performance,
even under pressure.Open was created to ensure high performance and business continuity, even in hot climates and critical environments.
The model Open meets professional needs that require large filling capacities in hot, poorly ventilated environments or tropical countries. It is equipped with 4 front filling connections for high-pressure hoses, an intuitive control panel, and electric motor. The pumping unit, a choice of 4 most powerful, is exposed at the rear of the structure to ensure a better cooling cycle.
For longer filter life, the Tornado high-pressure dryer is recommended. Available as options: the Presec system for filter saturation control or the S.A.M. system for multi-gas analysis and remote refill panel.
4-stage high pressure pumping unit
- Aluminum monoblock
- Forced lubrication with low-pressure gear pump
- Suction filter: 10 um
- Pipes, fittings and nuts made of AISI 316 stainless steel
- Intermediate condensate separator after the second and third stages
- Minimum lubricating oil pressure switch
- Safety valves after each compression stage
- Special cast iron cylinders with low roughness lapping
- Forged aluminum connecting rods
- Forged steel crankshaft
- High flow valves for the first, second and third stages
- Heavy-duty roller bearings
- Hardened steel third stage with 6 special cast iron bands
- Second and third stages with thrust pads to eliminate lateral forces on the pistons
- Hyperfilter filter system
Electric motor
One of the key parts of the compressor: the motor transfers motion to the pumping unit through the belt. A three-phase electric motor from 7.5 to 15 kW is available on this model.
Hyperfilter purification system
Placed after the last compressor separator and before the pressure maintenance valve, the Hyperfilter purification system enables reliable treatment of breathing air according to DIN EN 12021¹ when using original filter cartridges. The separator present between the 2nd and 3rd stages of the purification circuit makes it possible to extract as much moisture as possible. The filtering capacity with inlet air at 20°C and 200 bar is 3,050 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 individual stages and also of the final separator during compressor operation
- Timer for automatic condensate drainage device.
- Integrated no-load startup (automatic discharge each time the unit is turned off).
- Condensate collection tank 5 litres, with silencer; capacity about 3 litres, for environmentally friendly disposal of condensate.
- Interstage pressure gauges display the operating pressure for individual compression stages. This pressure information allows the tightness of the valves (inlet and outlet) of each stage to be checked and potential sources of failure to be quickly identified.
Frame
Open frame with vertical development made to facilitate maintenance operations. Oil level and drain reported externally, control console equipped with inter-stage gauges, oil pressure gauge, internal temperature indicator, presence and wrong phase sequence alarm, oil shortage alarm, and run stop and manual condensate drain controls allow easy operation and maintenance of the compressor. Made of steel with scratch-resistant powder coating in RAL 9005 black.
Highest air quality is the goal of a Coltri compressor
Air purity and quality are two indispensable features of our compressors. The air you breathe from Coltri compressors complies with EN 12021:2014 standards: that’s why with them you can work, have fun, practice in absolute safety.
Purification System Hyperfilter
The Hyperfilter is a high-capacity purification system designed for high-pressure compressors intended for the production of breathing air. It consists of two cartridges in series: the first with molecular sieve for moisture removal, and the second with a combination of molecular sieve and activated carbon to remove oil vapours and other contaminants.
This configuration provides greater filtration range and more effective purification, ideal for applications requiring high volumes of breathing air and maximum reliability.
Free freight Australia wide on Coltri compressors