Chicago Pneumatic Piston Compressors - Addison, IL
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Hankison Products

FS Curtis Rotary Screw Base and Tank Mounted Compressors

STANDARD EQUIPMENT

  • Air End Manufactured To ISO 9001 Standards
  • Heavy Duty NEMA Design Motors
  • NEMA 1 Control Panel With Starters
  • 115 Volt Control Transformer
  • Dual High Temp Shutdown Switches
  • Temperature Gauge
  • Liquid Filled Pressure Gauges
  • Hour Meter
  • Start-Stop/Reset Buttons
  • Load/Unload Switch
  • Start-Stop Control 5-7 1/2 HP
  • Timed Dual Control 10-20 HP
  • Timed Dual Control with Modulation 25-50 HP
  • On line-Off line with Modulation 50-300 HP
  • Vibration Isolators On Sub-Base 50-300HP
  • Drive Guard
  • Thermostatic Oil Temp Valve
  • Minimum Pressure Valve
  • Side by Side Coolers
  • Multi-Stage Oil Separator Unit
  • Safety Valve On Separator Tank
  • ASME Code Air Receiver For Tank Mounts
  • Low dBA, 100% Duty Cycle
  • Intake Filter 5-30 HP
  • Heavy Duty Intake Filter 40-300 HP
  • Heavy Duty Oil Filter with Bypass
  • Factory Fill Synthetic Lubricant

LEAK FREE DESIGN
With substantially reduced fittings along with high quality steel tubing and o-ring sealed hydraulic connections, Curtis units are designed to eliminate potential leaks.

  • ENERGY EFFICIENT CONTROL SYSTEM
    For proven maximum energy savings Curtis offers on line-off line or start-stop control with delay off timer. Optional modulation may also be added (Modulation is standard on 25 HP+). During unload cycle sump drops to low pressure resulting in an additional 10-12% electrical savings over conventional systems when in idle mode.

    INSTRUMENTATION
    Display includes discharge and sump pressure gauges, temperature gauge, hour meter, dual high air/oil shutdown switches with light, start-stop/reset buttons, dual control switch, no load start switch, standby light, and power-on light.

CONTROL CABINET
Conveniently located with hinged access door. Built-in across the line magnetic motor starters with thermal overload protection ensures long motor life. 115 volt control circuit transformer is provided for safe operation. Standard NEMA 1 Rated cabinet and electrical controls are U.L. and CSA listed. All electrical components are standard off the shelf for easy replacement.

ELECTRIC MOTORS
The R/S Series is designed using off the shelf motors and drive train parts. Heavy duty NEMA design motors with a 1.15 to 1.25 service factor are used to ensure dependable long life.

SIDE BY SIDE AIR/OIL COOLERS
This arrangement allows for very low approach temperatures vs. less efficient "stacked" design. This increases overall efficiency and provides for a cooler running compressor. Thermostatically controlled oil bypass valve insures proper oil temperature to extend air end life. Side by side coolers also offer easy access for cleaning.


"R/S" ROTOR PROFILE

INCREASED EFFICIENCY - The CURTIS "R/S" Profile with it's high precision finish offers the shortest possible sealing line to ensure minimal internal losses. This design along with low rotational speeds give you maximum CFM output per energy dollar. The "R/S" profile allows for extra CFM output even at pressures as high as 175 PSIG.

LONG LIFE-LARGE DIAMETER BEARINGS
Large cylindrical roller bearings are designed for years of continuous service. Precision ball bearings with angular thrust contact provides twice the needed thrust loading. Bearings are a significant part of any air end and Curtis puts an emphasis on their long life bearings.

OIL SEPARATORS
VERTICAL MULTI-STAGE SEPARATION - First stage separation is achieved by offset air/oil inlet and special baffling which centrifugally separates 95% of oil from air.

Second stage separator element is sized so that even under maximum capacity flow, the velocity through the filter is less than 1 ft./sec. for maximum efficiency. Our separator element will last longer due to our unique oversized design. This oil separation system provides virtually oil-free air.

ASME CODED, VERTICAL SEPARATOR TANK saves space and reduces turbulence to prevent oil carryover. Separator tank is equipped with oil-fill vent plug, oil level sight glass, safety relief valve, and minimum pressure check valve.

 

Base Mounted 5-300HP
  CFM CFM CFM CFM lbs lbs      
MODEL
PRICE
HP
100 psi
125 psi
150 psi
175 psi
W/end
No/end
L
W
H
RS 5A
5
19
18
15
N/A
N/A
165
32
22
20
RS 7A
7.5
27
26
23
N/A
N/A
175
24
22
20
RS 10
10
42
39
34
28
350
N/A
27
27
34
RS 15
15
67
58
48
44
790
640
60
30
43
RS 20
20
88
82
71
61
1135
985
60
30
43
RS 25
25
108
104
92
80
1210
1060
60
30
43
RS 30A
30
125
118
106
100
1375
1100
60
30
43
RS 30
30
140
130
118
97
1425
1150
60
30
43
RS 40
40
191
173
150
129
1630
1425
72
42
50
RS 50
50
225
212
186
172
1955
1750
72
42
50
RS 50AD
50
225
215
186
170
2030
1825
42
72
46
RS 50-D
50
240
222
195
165
2130
1925
42
72
46
RS 60-D
60
280
275
236
212
2570
2170
48
76
62
RS 75-D
75
365
329
305
270
3140
2690
54
84
62
RS 100-D
100
465
458
363
340
3400
3950
54
84
62
RS 125-D
125
600
570
516
440
5320
4750
66
84
71
RS 150-D
150
760
706
583
546
5550
4750
66
84
71
RS 200-D
200
960
860
770
680
5985
5285
70
90
71
RS 250-D
250
1170
1073
970
N/A
9700
9000
75
96
80
RS 300-D
300
1450
1298
1150
N/A
10000
9300
75
96
80

 

 

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