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Rotary Screw Small & Medium Range Compressor

Standard Features

  • Screw Type, Oil-Injected Air-End, with most modern Asymmetric high efficiency rotor profile, massive bearing construction, ensuring reliable continuous operation upto14 barg pressure.
  • Electric Motor Standard Metric Frame, Three-phase, class F Insulation, 400V 50 Hz, IP 23 Drip proof enclosure, (TEFV IP 54 is standard upto15 HP).
  • Star Delta type with overload protection, delay relays, control circuit fuse, fan motor starter (above 20 HP), mushroom type emergency stop.
  • Air oil cooler, cooling the compressed air about 10°C above ambient
  • Dry type Micronics air filter with cleanable and replacement element
  • Lubrication system, complete with air-cooled oil cooler (suitable for ambient temperature of up to 45°C) Air oil Reservoir, oil filter, Safety Valve, oil Level Gauge, interconnecting piping, Thermostatic mixing valve enabling stable operating temperatures.
  • Fine Air-oil Separator, 2 stage ensuring 1 to 3 PPM oil carry over by weight.
  • Control panel,IP54 enclosure including pressure gauge, Temperature Gauge, filter service indicator, Hour-Meter, Fault indicating lamp, start/stop/Reset switches.
  • Acoustic canopy for the reduction of the noise level down to 76 to 82 dBa.
Pressure Options
Electric Moter Drive Options
Motor starter options
Compressor cooling options (oil cooler & after cooler)
Multi-compressor controls
Technically oil-free air options

» Medium pressure 5 to 13 Barg
» Low Pressure 3 to 5 Barg for pneumatic and process applications

» IP 23 or IP 54/55 enclosures
» Explosion – Proof enclosures, Nema Frame Motors
» Customer supplied Motor Drives
» Variable – Speed – Motors

» Full Voltage starters
» Star-Delta Starters
» Soft Starters, Digital or analogue type & Auxiliary by-pass contactors.
» Main disconnect Switch
» Short- Circuit Breakers
» Vacuum Switch Contactors

» Combined Capacity Control (Upper Range Modulation) down to partial capacities of 50% (adjustable). When air demand is further reduced the Control switches automatically to unloaded operation with Low power consumption-and automatic timed- stop and Auto – start on renewal of air demand. This system ensures stable control with reduced dependence on air receivers and relative Power Saving during periods of low air Demand.

» Power saving ‘’TURN-VALVE” Control, Stepless proportional capacity control at stable discharge pressures with minimum power consumption at part load, independent of receiver volumes. The simplest and most efficient Capacity Control in rotary Air Compressors from 100% down to 0% flows, for plants having large fluctuations in
compressed air demand

» Variable Speed Capacity Control

Sequencers to control any number of Screw or other type of compressors in a coordinated way with minimum total power consumption. The Central sequencer oversees the automatic start, load-unload and shut-down of all compressors according to system
demand and maintains the required system air pressures, with minimum amount of power. Optional Man-Machine interfaces are provided for remote monitoring and control

» “TECHNICALLY OIL-FREE air compressor sets incorporating the screw compressor, refrigerated or dessicant type air-dryer, microfiber air/oil separators with 1 micron prefiltration and 0.01 micron afterfiltration, thus reducing the oil content down to 0.01 PPM by weight. Activated-Carbon oil-vapors adsorbers are available to provide less
than 0.003 PPM oil residue.

» Oil carry over barriers combine all the above indicated purification and filtration stages in addition to a baffle-type volumetric liquid carryover barrier to prevent contamination of critical systems, by accident carry over

Rotary screw small and medium range (7.5 to 150 hp)

MODEL 7 BAR 8 BAR 10 BAR 12 BAR Motor Power HP Length MM Width MM Height MM Weight kg Air Conn.
M3/ MIN Delivery CFM M3/ MIN Delivery CFM M3/ MIN Delivery CFM M3/ MIN M3/ MIN
IA MAC 7.5 0.85 30 0.76 27 0.65 23 0.51 19 7.5 870 790 1120 286 3/4″
IA MAC 10 1.19 42 1.10 39 0.96 34 0.79 28 10 870 760 1120 292 3/4″
IA MAC 15 1.78 63 1.67 59 1.47 52 1.27 45 15 870 760 1120 351 3/4″
IA MAC 20 2.56 87 2.29 81 1.98 70 1.64 58 20 870 760 1120 489 3/4″
IA MAC 25 3.17 112 3.95 104 2.55 90 2.12 75 25 1470 1115 1175 504 1 1/4″
IA MAC 30 3.68 130 3.43 121 3.00 106 2.55 90 30 1470 1115 1175 517 1 1/4″
IA MAC 40 5.07 179 4.76 168 4.16 147 3.60 127 40 1470 1115 1175 610 1 1/2″
IA MAC 50 6.29 222 5.83 206 5.15 182 4.47 158 50 1450 1600 1480 650 1 1/2″
IA MAC 60 7.48 264 7.05 249 6.29 222 5.41 191 60 1850 1600 1480 1050 2″
IA MAC 75 10.00 353 8.61 304 7.70 272 6.63 234 75 1850 1600 1480 1250 2″
IA MAC 100 13.50 477 12.95 457 11.50 404 9.90 349 100 2340 1740 2000 1760 2 1/2″
IA MAC 125 16.50 582 15.70 555 13.90 490 11.80 418 125 2340 1740 2000 1890 DN 80
IA MAC 150 19.60 692 17.80 628 16.30 575 14.30 505 150 2340 1740 2000 2350 DN 80

 

Rotary screw large range (175 to 300 hp)

MODEL 7 BAR 8 BAR 10 BAR 13 BAR Motor Power HP Length MM Width MM Height
MM		 Weight
kg		 Air
Conn.
M3/
MIN		 Deliv-ery
CFM		 M3/
MIN		 Deliv-ery
CFM		 M3/
MIN		 Deliv-ery
CFM		 M3/
MIN		 M3/
MIN
IA MAC 175 23.5 850 763 763 19.2 678 17.5 618 175 2460 1740 2100 3200 DN 80
IA MAC 200 24.9 879 24.1 851 21.8 770 19.80 699 200 2460 1740 2100 3450 DN 80
IA MAC 250 30.6 1080 29.4 1038 26 918 24.30 858 250 2860 1740 2100 3720 DN 100
IA MAC 300 35 1236 34.7 1225 28.3 1000 25 883 300 4250 1740 2100 5100 DN 100