EFFICIENT LINE

Ergo

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Maximum efficiency on the move

Clean lines and advanced technology come together in ERGO, a compressor designed to deliver high performance with maximum ease of use.

Essential style, evolved soul

Convenient to carry, Ergo Is distinguished by its robustness and high operational efficiency. Equipped with two different pumping units, powered by electric motors, single-phase or three-phase. It is equipped with a monitoring panel complete with interstage pressure gauges, autostop with adjustable pressure switch, automatic condensate drain and rotation direction control.

There are two high-pressure hose connections (232 to 330 bar) and a filter system Maxifilter. Remote Refill Panels, C-Monitor, and the Multigas Analysis System (SAM) are available as options.

Watch it closely

Simplicity comes as standard

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

And now for all the details

3-stage high pressure pumping unit

Aluminum monoblock
Spray lubrication with tang immersed in oil
Suction filter: 10 um
Pipes, fittings and nuts made of AISI 316 stainless steel
Intermediate condensate separator after the second stage
High-pressure final condensate separators
Safety valves after each compression stage
High heat-dispersion die-cast aluminum cylinders with nicasil barrel coating
Forged aluminum connecting rods
Forged steel crankshaft
Stainless steel second and third stage valves
Heavy-duty roller bearings
Hardened steel third stage with 5 segments made of special cast iron
Second and third stages with thrust pads to eliminate lateral forces on the pistons
Filter system Maxifilter

Electric motor

One of the basic parts of the compressor: the motor transfers motion to the pumping unit through the belt. On this model, the single-phase or three-phase electric motor is available from 4 to 5 ,5 kW.

Purification system Maxifilter

The purification system Maxifilter enables reliable treatment of breathing air according to DIN EN 12021 when using original filter cartridges. Placed after the compressor 2nd and 3rd stage separator and before the pressure maintenance valve to create a first fundamental barrier against moisture. Filter capacity with inlet air at 20°C and 200 bar is 890 m³.

Electrical cabinet

ON/OFF switch with motor protection switch.
Electromechanical 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 liters, with silencer; capacity about 3 liters, 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 made for easy maintenance and transportability. Tilting motor carrier plate ensures constant V-belt tension. Protective casing made of thermo-formed material channels cooling air over the cylinders and inter-stage pipes, ensuring high compression efficiency. Control console equipped with inter-stage pressure gauges, 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.

3-stage high pressure pumping unit

Aluminum monoblock
Spray lubrication with tang immersed in oil
Suction filter: 10 um
Pipes, fittings and nuts made of AISI 316 stainless steel
Intermediate condensate separator after the second stage
High-pressure final condensate separators
Safety valves after each compression stage
High heat-dispersion die-cast aluminum cylinders with nicasil barrel coating
Forged aluminum connecting rods
Forged steel crankshaft
Stainless steel second and third stage valves
Heavy-duty roller bearings
Hardened steel third stage with 5 segments made of special cast iron
Second and third stages with thrust pads to eliminate lateral forces on the pistons
Filter system Maxifilter

Electric motor

Purification system Maxifilter

Electrical cabinet

ON/OFF switch with motor protection switch.
Electromechanical 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 liters, with silencer; capacity about 3 liters, 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

Highest air quality is the goal of a compressor Coltri

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 Maxifilter

The Maxifilter is a high-performance purification system designed for use with high-pressure compressors intended for the production of breathing air. It uses a combined molecular sieve and activated carbon filter cartridge, ensuring effective removal of moisture, oil vapors, and other contaminants.

This system ensures that the compressed air meets the standards required for underwater, industrial and emergency use, offering maximum breathing safety and reliability.

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Featured on Efficient Line compressors

Standard Equipment

2 Cylinder connections of your choice of DIN 232, DIN 300 or INT/YOKE 232 bar

2 Filling hoses 1.2 m long

Pressure holding valve

Interstage control manometers

Filter system Maxifilter

Inside cabin temperature with automatic shutdown

Automatic rotation direction control

Pressure switch with automatic shutdown

Oil level control with automatic shutdown

Automatic condensate drain with conveying system into the canister

Frame color Black RAL 9005

Technical specifications.

Type of gas

Breathing air EN 12021 – Nitrox 40% max O2 – Helium – Nitrogen

Suction pressure

Atmospheric max 300 millibars

Pressure rating

250 bar / 330 bar / 360 bar

Operating pressure

250 bar / 330 bar / 360 bar

Max working pressure

232 bar / 420 bar

Allowable temperature range

-10° C ÷ +40° C

Allowable altitude range

0 ÷ 1,500 m SLM

Maximum allowed inclination

6°

Design

Protective Cabinet

Operating voltage, standard

230 V, 60 Hz / 400 V, 50 Hz

Other operating voltages

On three-phase electric motors at 60 hz power (kW / hp) increase by 20%.

230 V, 50 Hz / 440 V, 60 Hz / 230 V, 60 Hz

Oil

Coltri ST 755 Synthetic Oil

Oil change interval

1 year / 1,000 h

Frame

Steel – Color Black RAL 9005 – Powder coated – Scratch resistant

Compressor

Pump group flow rate

Measured while filling a 10-liter cylinder from 0-200 bartolerance +/- 5% at + 20 °C room temperature.

210 EM

210 l/min
12.6 m³/h
7.4 CFM

270 EM

270 l/min
16.2 m³/h
9.5 CFM

235 ET

235 l/min
14.1 m³/h
8.3 CFM

315 ET

315 l/min
18.9 m³/h
11.1 CFM

Purification system

Maxifilter

Cooling air flow

210 EM

1.240 m³/h

270 EM

2.180 m³/h

235 ET

1.440 m³/h

315 ET

2.180 m³/h

Weight

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

210 EM

159 kg
350 lb

270 EM

147 kg
324 lb

235 ET

150 kg
350 lb

315 ET

152 kg
335 lb

Dimensions

(W x D x H)

112 x 63 x 77 cm
44.1 x 23.8 x 30.3 in

Noisiness

210 EM

270 EM

235 ET

315 ET

LpA 78,4 dB

Engine

Power

210 EM

4 kW
5.5 Hp

270 EM

5.5 kW
7.5 Hp

235 ET

4 kW
5.5 Hp

315 ET

5.5 kW
7.5 Hp

Engine type

210 EM

Elettrico monofase

270 EM

Elettrico monofase

235 ET

Elettrico trifase

315 ET

Elettrico trifase

Operating voltage/frequency

Different voltage and frequency available upon request.

210 EM

230 V, 60 Hz

270 EM

230 V, 60 Hz

235 ET

400 V, 50 Hz

315 ET

400 V, 50 Hz

Rated current

210 EM

25.2 A

270 EM

29.7 A

235 ET

16.8 A

315 ET

12.6 A

Engine RPM (RPM)

210 EM

2.850

270 EM

3.510

235 ET

2.840

315 ET

2.850

Protection class

IP55

Compatible Accessories

Discover the options designed for your new compressor