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Industrial Air Compressors

Lubricated Rotary Screw Air Compressors

Quincy QSI Series | 125 HP - 350 HP


If your plant is operating 24 hours a day, you simply cannot afford to lose production time due to failures. You need the reliability that only a rotary screw compressor having over 25 years of loyal service can offer: the Quincy QSI® .Many of the QSI compressors that we have sold over the last twenty years are still service, and we are not surprised at this state of affairs. Indeed, the QSI is designed to be highly reliable. For example, think of the volumetric pump that provides appropriate lubrication of oil to the rotor and bearings or of the oversized and robust air filter which is standard on the QSI series but is optional on other brands. The QSI it highly effective with a rotor that produces a maximum air flow while requiring only minimal power. Carefully study the QSI’s characteristics compared to its competitors. Remember that your 24/7 production requirements can only be filled by a compressor that will not let you down: The QSI! For optimum performance, consider Quincy’s unique "Power $ync".

 

Standard equipment

• Axial flow intake case.
• Triple discharge bearings.
• Full-flow pump.
• Alarm and full stop indicator.
• 3 phase, 460 or 575 volt engine, 60 Hz and 1800 rev / min.
• Magnetic starter with full voltage of 460 volts (for QSI 750), mounted and wired
• Quick release connector with flexible protector compliant to OSHA.
• Reinforced steel base frame.
• Separation of air / fluid in two stages.
• Full flow 10 micron filter.
• Reinforced inlet filter.
• Auto or dual controls.
• Percentage capacity indicator.
• QuinSyn synthetic lubricant (food grade optional at no cost).
• Complementary cooler near 5 degrees with moisture separator and collector.
• Integrated check valve.
• Hour Meter
 


 

At A Glance Up Close
Available with Power$ync 90-1500 cfm
Air or water cooled 100-150 psig
Best specific power 130,000 hour design
Sound level as low as 66 dBA TEFC & NEMA options
10-Year Royal Blue Warranty Industrial Duty Direct Drive
Premium Serviceability 5.7″ full-color display

 

QSI 90-225 Technical data

Model FLOW DBA HP Length inches Width inches Height inches Weight lbs
100 PSI 125 PSI 150 PSI
QSI 90
(20 HP)
90 88 84 68 20hp 61.1 33 49.3 1250
w/tank           69 33 73.8 1500
QSI 120
(25 HP)
117 114 111 68 25hp 61.1 33 49.3 1300
w/tank           69 33 73.8 1550
QSI 140 (30 HP) 136 135 130 68 30hp 61.1 33 49.3 1350
w/tank           69 33 73.8 1600
QSI 190
(40 HP)
184 184 183 69 40hp 70.4 33 68.63 2094
QSI 225 
(50 HP)
225 220 224 69 50hp 70.4 33 68.63 2094

 

QUINCY QSI SERIES 245I - 500I ROTARY SCREW COMPRESSORS

Performance 245i 220i 300i 250i 370i 335i 500i 440i
Flow in acfm 100 psig 243 N/A 286 N/A 365 N/A 500 N/A
Motor HP 50hp 60hp 75hp 100hp
110 psig 242 N/A 285 N/A 364 N/A 498 N/A
Motor HP 50 HP 60 HP 75 HP 100 HP
125 psig 240 206 240 240 361 335 495 436
Motor HP 60 HP 50 HP 60 HP 60 HP 100 HP 75 HP 125 HP 100 HP
150 psig 238 N/A 234 N/A 358 N/A 433 N/A
Motor HP 60hp 60hp 100hp 125hp
Open/Enclosed Sound (dBA) 79/66 79/66 77/68 77/70
Connection (NPT) 1.25” 1.25” 2” 2”
Length inches (mm) 84 (2134) 84 (2134) 91 (2311) 91 (2311)
Width inches (mm) 45 (1143) 45 (1143) 54 (1372) 54 (1372)
Height inches (mm) 74 (1880) 74 (1880) 75 (1905) 75 (1905)
Open Weight pounds (kg) 3050 (1429) 3250 (1565) 4050 (1883) 4250 (2019)
Enclosed Weight pounds (kg) 3250 (1520) 3450 (1656) 4250 (1973) 4450 (2109)

 

QUINCY QSI 125-350 PERFORMANCE DATA

  Full Load M3/min @7.58 BAR Motor hp/rpm Rotor Diameter in/mm Length in/mm Width in/mm Height in/mm Weight lbs/kg
QSI-600
(125 HP)
630 17.84 125hp/1800 10.04/255 102/2591 56/1422 60.25/1530 4500/2045
QSI-750
(150 HP)
745 21.1 150hp/1800 10.04/255 116/2946 68/1727 76.25/1937 7500/3409
QSI-1000
(200 HP)
1014 28.71 200hp/1800 12.64/321 120/3048 76/1930 73.25/1861 9000/4091
QSI-1250
(250 HP)
1269 35.93 250hp/1800 12.64/321 132/3353 80/2032 89.25/2267 10300/4682
QSI-1500
(300 HP)
1521 43.07 300hp/1800 12.64/321 132/3353 80/2032 89.25/2267 10500/4773


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