Reciprocating Compressor

QRDS: High Efficiency and Clean Air

Still using liquid ring compressors to meet your oil-less compressed air needs?

Take a look at compressors that are more efficient and less costly. Take a look at the QRDS series of oil-less reciprocating compressors. Available in 5-30 hp models, QRDS compressors provide pressure capability up to 100 psig. With compressor operating speeds in the 855-1020 rpm range, the QRDS runs slower and cooler than competing single-stage oil-less compressors. That gives you higher compression efficiency, lower maintenance costs and longer service life.

The QRDS compressor is capable of maintenance-free operation for up to three years. Check out the maintenance schedule for details. Hospitals, pharmaceutical and food processing companies, laboratories, and dental offices all rely on Quincy QRDS compressors for clean, oil-less air. They know Quincy Quality means reliability, with lower costs over a longer life.

Inside the QRDS

Standard features, basic compressor

  • Cast-iron crankcase and main bearing carrier for strength and durability
  • One-piece cast iron connecting rods for strength and rigidity
  • Totally sealed, prelubricated bearings for long life
  • Hard-coated and precision-honed aluminum cylinders and heads with deep fins for efficient heat    dissipation
  • Aluminum pistons facilitate heat dissipation and balancing
  • All-polymeric reinforced PTFE piston and rider rings for low friction
  • Hard-coated and Teflon impregnated valve plates for long life
  • Stainless steel reed valves for long life and high efficiency
  • Integral counterweights on crankshaft for smooth operation
  • Cast iron compressor pulley with integral fan for optimum cooling
  • Lubricated and sealed needle bearings for the piston pins
  • Free-floating piston pins designed for all connecting rods (Patent Pending)
  • HAT switches in head, HAT wiring kit module
  • Integral air-cooled 15°F approach aftercooler

Standard features, tank and base mounted units

  • ODP motor
  • OSHA-style beltguard
  • Pressure switch for start-stop control
  • Pressure switch set 80-100 PSIG
  • Inlet filter/silencers

Standard features, tank mounted units

  • ASME pedestal-type receivers (Cal OSHA 462-M approval)
  • ASME coded pressure relief valves
  • Manual tank drain and service valve
     

QRDS Facts and Figures

Model

HP

No. of
Cylinders

Bore & Stroke
(Inches)

75 psig

CFM FAD/RPM
100 psig

Weight
(lbs)

QRD-S 5

5

2

4,000 x 2,375

20,0/859

17,5/813

270

QRD-S 7.5

7.5

2

4,750 x 2,375

33,5/950

28,5/859

275

QRD-S 10

10

2

5,250 x 2,375

42,2/956

36,3/864

280

QRD-S 15

15

3

4,750 x 2,375

60,5/1155

51,0/1020

415

QRD-S 20

20

3

5,250 x 2,375

69,0/1020

65,1/1020

450

QRD-S 30P

25

4

5,250 x 3,000

109,1/1020

95,5/930

700

QRD-S 30P

30

4

5,250 x 3,000

N/A

103/1020

700

QRDS Dimensional Information

Approximate dimensions in inches*

HP

Height

Width

Length***

Weight (lbs)**

Base Mount

5

32.32

28.44

49.41

580

7.5

32.32

28.44

49.41

630

10

32.32

28.44

49.91

670

15

33.91

30.25

51.12

895

20

33.91

30.25

52.22

970

25/30

39.95

43.05

62,00

1365/1405

Simplex 80 Gallon Tank Mount

5

50.89

26.44

67.58

780

7.5

50.89

26.44

67.58

830

10

50.89

26.44

67.58

870

Simplex 120 Gallon Tank Mount

5

59.82

29.81

73.07

1030

7.5

59.82

29.81

73.07

1080

10

59.82

29.81

73.07

1120

15

58,90

29.79

75.33

1345

20

58,90

29.79

75.33

1420

Duplex 240 Gallon Tank Mount

5

65.82

52.89

89.12

2270

7.5

65.82

52.89

89.12

2370

10

65.82

52.89

89.12

2450

15

67.02

57,00

92.08

2900

20

67.02

57,00

92.08

3050

*See QRDS Technical data sheet for exact dimensions, nonpedestal receiver (120-gallon, pedestal-mount optional).

**Weights will vary with optional equipment.

***Length includes 1" NPT ball valve.

All performance data meets CAGI/PNEUROP PN2CPTC2 and PN2CPTC3 acceptance test codes for electrically and I.C. engine-driven packaged displacement air compressors.

Options

  • 208, 230, and 460 volt magnetic starters (mounted and wired)
  • TEFC and high-efficiency motors Dual control Intake mufflers
  • Isolation pads
  • Electric tank drain
  • Galvanized receivers
  • NEMA 4 controls
  • Automatic alternating duplex control panels (mounted and wired)
  • Head unloaders for constant speed operation

QRDS Maintenance Schedule

  • The QRDS compressor is designed for maintenance-free operation for three years or 10,000 hours of operation (whichever passes first), when it is operated at 100 psig.
  • This maintenance schedule applies to the compression and rider rings, low-pressure and high pressure wrist pins, connecting rod and main shaft sealed bearings, and the valve assemblies

QRDT: Setting the Oil-less Standard

The QRDT is a two-stage, air-cooled compressor with pressure capability up to 150 psig. With an air-cooled intercooler as standard equipment and operating speeds in the 780-1020 rpm range, the QRDT runs cooler and slower than competing single-stage oil-less compressors. That gives you higher compression efficiency, lower maintenance costs and longer service life. That's why hospitals, pharmaceutical and food processing companies, laboratories, and dental offices all rely on Quincy for clean, oil-less air.

The QRDT compressor is capable of maintenance-free operation for up to three years. Check out the maintenance schedule for details.

Inside the QRDT

Setting the Standard - Standard features, basic compressor

  • Cast-iron crankcase and main bearing carrier for strength and durability
  • One-piece cast iron connecting rods for strength and rigidity
  • Totally sealed, prelubricated bearings for long life
  • Hard-coated and precision-honed aluminum cylinders and heads with deep fins for efficient heat dissipation
  • Aluminum pistons facilitate heat dissipation and balancing
  • All-polymeric reinforced PTFE piston and rider rings for low friction
  • Hard-coated and Teflon impregnated valve plates for long life
  • Stainless steel reed valves for long life and high efficiency
  • Integral counterweights on crankshaft for smooth operation
  • Cast iron compressor pulley with integral fan for optimum cooling
  • Lubricated and sealed needle bearings for the piston pin
  • Free-floating piston pin designed for both the high-pressure rod and low-pressure rods (Patent Pending)
  • HAT switches in head, HAT wiring kit module
  • Air-cooled intercooler
  • Integral air-cooled 15°F approach aftercooler

Standard features, tank and base mounted units

  • ODP motor
  • OSHA-style beltguard
  • Pressure switch for start-stop control
  • Pressure switch set 110-125 PSIG
  • Inlet filter/silencers
  • Standard features, tank mounted units
  • ASME pedestal-type receivers (Cal OSHA 462-M approval)
  • ASME coded pressure relief valves
  • Manual tank drain and service valve

Quincy QRDT Facts and Figures

TWO-STAGE, OIL-LESS RECIPROCATING AIR COMPRESSORS

Model

HP

No. of
Cylinders

Bore & Stroke
(Inches)

CFM FAD/RPM
100 PSIG

CFM FAD/RPM
125 PSIG

CFM FAD/RPM
150 PSIG

Weight
(lbs)

QRDT-10

10

3

5,25 x 4,00 x 2,375

38,6/780

38,3/780

38,0/780

 

QRDT-15

15

3

5,25 x 4,00 x 2,375

51,0/1020

50,5/1020

50/0/1020

 

QRDT-30P

20

4

7,12 x 4,00 x 3,00

81,5/705

80,1/705

76,4/645

735

QRDT-30P

25

4

7,12 x 4,00 x 3,00

100,0/870

94,2/825

90,7/780

735

QRDT-30P

30

4

7,12 x 4,00 x 3,00

114,2/1020

104,2/930

102,0/903

735

All performance data meets CAGI/PNEUROP PN2CPTC3 acceptance test codes for electrically and I.C. engine-driven packaged displacement air compressors.

Two-Stage QRDT Dimensional Information

Approximate dimensions in inches*

HP

Height

Width

Length***

Weight (lbs)**

Base Mount

10

33.91

30.25

51.06

840

15

33.91

30.25

51.06

925

20

41.79

43.47

62,00

1295

25

41.79

43.47

62,00

1400

30

41.79

43.47

62,00

1440

Simplex 120 Gallon Tank Mount

10

61.41

31.38

73.07

1290

15

61.41

31.38

73.07

1375

Simplex 200 Gallon Tank Mount

20

75.29

43.47

77,0

1980

25

75.29

43.47

77,0

2085

30

75.29

43.47

77,0

2125

Duplex 240 Gallon Tank Mount

10

67.41

54.95

81.38

2790

15

67.41

54.95

81.83

2960

10 and 15 HP bare compressor weight with flywheel 445 lbs

* See QRD Technical data sheet for exact dimensions

**Weights will vary with optional equipment.

***Length includes 1" NPT ball valve.

Options

  • 208, 230, and 460 volt magnetic starters (mounted and wired)
  • TEFC and high-efficiency motors
  • Dual control
  • Intake mufflers
  • Isolation pads
  • Electric tank drain
  • Galvanized receivers
  • NEMA 4 controls
  • Automatic alternating duplex control panels (mounted and wired)
  • Head unloaders for constant speed operation

QRDT Maintenance Schedule

The QRDT compressor is designed for maintenance-free operation for three years or the following hours of operation when operated at the listed cut-out pressures:

100 psi

10,000 hours

125 psi

  8,000 hours

150 psi

  6,000 hours

This maintenance schedule applies to the compression and rider rings, low-pressure and high pressure wrist pins, connecting rod and main shaft sealed bearings, and the valve assemblies.

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