COMPRESSOR COLTRI ELECTRIC FORCE FOUR

The FORCE FOUR model meets professional needs that require large charging capacities in hot, poorly ventilated environments or tropical countries. It is equipped with an intuitive control panel and electric motor. The pumping unit, a choice of 3 most powerful, is exposed to ensure a better cooling cycle. It is equipped with the Hyperfilter purification system mounted on a stand-alone system, with automatic condensate drainage. For longer filter life, the Tornado high pressure dryer is recommended.

Available as options: the Presec system for filter saturation control, Megafilter oversized filter cartridges, and 2- or 4-outlet remote refill panel.

4-stage high pressure pumping unit.

• Monobloc in aluminum,
• Crankshaft 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.
• Low oil pressure switch.
• 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

Electric motor

One of the fundamental parts of the compressor: the motor transfers the motion to the pumping unit through the belt. Single-phase 7.5 kW or three-phase 7.5 to 11 kW electric motor is available on this model.

Purification at the highest level.

Compressor control and automatic condensate drainage system

• Motor protection switch.
• Fixed calibration pressure switch 232 or 300 bar.
• Autostart with pressure differential 15 bar. (optional)
• Transformer.
• Drainage of all separators between individual stages and also of the final separator during compressor operation (standard drainage interval every 15 minutes for a period of 6 seconds).
• Timer for automatic condensate drain.
• 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.

Interstage pressure gauges are mounted in the compressor frame. 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.

Standard equipment

• 4 Filling connections of your choice of DIN 232, DIN 300 or INT/YOKE 232 bar
• 4 filling hoses of 1.2 m in length
• Pressure maintenance valve
• Interstage control gauges
• Double PED certified Hyperfilter filter system
• Purification system on “stand-alone” structure
• Automatic condensate drain
• Oil level control with automatic shutdown
• Oil pump
• Frame color Black RAL 9005

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                                            250 bar / 330 bar / 360 bar

Max working pressure                                     420 bar

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

Permissible altitude                                         0 ÷ 1.500 m SLM

Max permissible tilt                                        15°

Design                                                             Cabinet aperto

Operating voltage, standard                            230 V, 60 Hz (elettrico monofase) 400 V, 50 Hz (elettrico trifase)

Other operating voltage                                  230 V, 50 Hz / 440 V, 60 Hz / 400 V, 60 Hz

(On three-phase electric motor at

60Hz the power (kW / Hp)

increases by 20%)

Oil                                                                   Synthetic Coltri Oil ST 755

Oil change interval                                          Every year / 1,000 h

Frame                                                              Steel thickness 1.5 mm – Color RAL Black 9005 – Powder coating – scratch-resistant