Smart

The evolution of the species.

SMART breathing air compressors represent the evolution of the Standard, one of the best known and best-selling models in the world.

3-stage high pressure pumping unit.

  • Monobloc in aluminum,
  • Crankshaft in forged steel
  • Splash lubrication
  • Forged aluminum connecting rods
  • Main roller bearings
  • Roller connecting rod bearings
  • 1st and 2nd stage cylinders in aluminum with hard nicasil coating
  • 2nd and 3rd stage slide guide cylinders in aluminum with hard nicasil coating
  • 3rd stage cylinder in special treated steel.
  • Stainless steel intake and exhaust valves
  • Interstage cooling pipes in stainless steel
  • Separator after the 2nd and 3rd stage
  • Safety valves after each stage
  • Maxifilter filter system

The purity of the air is achieved.

The Maxifilter purification system enables reliable treatment of the breathing air according to DIN EN 12021¹ when using original filter cartridges. Placed after the last compressor separator and before the pressure maintenance valve, it has the separator after the 2nd and 3rd stage to create a first, fundamental barrier against humidity. The filtering capacity with inlet air at 20 ° C and 200 bar is 620m³.

Motor

One of the fundamental parts of the compressor: the motor transfers the motion to the pumping unit through the belt. On this model is available the single-phase or three-phase electric motor from 3 to 5, 5 kW.

Chassis

Essential and compact, this frame is designed to facilitate portability. The tilting motor-holder plate guarantees the constant tension of the V-belt. The protective casing in thermo-formed material conveys the cooling air on the cylinders and on the inter-stage pipes. This guarantees a high compression efficiency.

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.

The details that matter

The compressor features a compact frame with handles for easy transport.

Standard equipment

2 Cylinder connections to choose from DIN 232, DIN 300 or INT / YOKE 232 bar
2 whips 1.2m long
Pressure maintenance valve
Maxifilter filter system
Carrying handles
Frame color Blue RAL 5015

Technical data

Type of gas

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

Intake pressure

Atmospheric max 300 millibars

Nominal pressure

250 bar / 330 bar / 360 bar

Working pressure

232 bar / 300 bar / 330 bar

Max working pressure

232 bar (elettrico monofase) – 420 bar (elettrico trifase)

Permissible ambient temperature range

-10° C ÷ +40° C

Permissible altitude

0 ÷ 1.500 m SLM

Max permissible tilt

Design

Basic

Operating voltage, standard

230 V; 50 Hz / 400 V; 50 Hz

Other operating voltage

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

Oil

Synthetic Coltri Oil ST 755

Oil change interval

1 year / 1,000 h

Frame

Steel thickness 1.5 mm – color RAL 5015 – Powder coating – scratch-resistant

Compressor

Charging rate

Measured during 10 liters cylinder filling from 0-200 bar tolerance +/- 5% at + 20° C ambient temperature.
125 EM

125 l/min
7.5 m3/h
4.4 CFM

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
8.2 CFM

315 ET

315 l/min
19.9 m3/h
11.1 CFM

Purification system

Maxifilter

Cooling air flow, min.

125 EM

1.710 m3/h

210 EM

1.240 m3/h

270 EM

1.400 m3/h

235 ET

1.440 m3/h

315 ET

2.180 m3/h

Weight

Standard model. Weight and dimensions may vary depending on accessories.
125 EM

93 kg
205 lb

210 EM

100 kg
220.4 lb

270 EM

105 kg
231.5 lb

235 ET

95 kg
209.4 lb

315 ET

105 kg
231.5 lb

Dimensions

(W x D x H)

100 x 46 x 70 cm
39.4 x 18.1 x 27.6 in

Motor

Power

125 EM

3 kW
4 Hp

210 EM

4 kW
5.5 Hp

270 EM

5.5 kW
7.5 Hp

235 ET

5.5 kW
7.5 Hp

315 ET

5.5 kW
7.5 Hp

Type

125 EM

Single-phase electric

210 EM

Single-phase electric

270 EM

Single-phase electric

235 ET

Three-phase electric

315 ET

Three-phase electric

Operating voltage/frequency

Different voltage / frequency available on request.
125 EM

230 V, 50 Hz

210 EM

230 V, 50 Hz

270 EM

230 V, 50 Hz

235 ET

400 V, 50 Hz

315 ET

400 V, 50 Hz

Rated current

125 EM

18 A

210 EM

24 A

270

25.5 A

235 ET

15 A

315 ET

20 A

Speed (RPM)

125 EM

2.800 1/min

210 EM

2.800 1/min

270 EM

2.840 1/min

235 ET

2.840 1/min

315 ET

2.840 1/min

Protection class

IP55 (TEFC)

The available models of Smart

(Non-standard models available upon request)

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