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Root's Blower - Manual |
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Blower Model Order Code
| MODEL |
CR–350 |
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| CR |
Cutes Root's Blower (For PRESSURE) |
| VCR |
Cutes Root's Blower (For VACUUM) |
| Connection Pipe Size |
14 Inch (350 mm) |
| Capacity |
95 ~ 257 m3/min (Refer To Performance Table) |
| Pressure |
1000 ~ 10000 mmAq |
| Vacuum |
-1000 ~ -6000 mmAq |
| Speed RPM |
600 ~ 1200 RPM |
| Transmission |
V-BELT |
| Noise Level |
87 ~ 99 dB (Refer To Noise Level of Blower) |
| Motor Power |
75 ~ 500 HP (Refer to Performance Curve) |
| Weight |
873.6 KG (Blower Only, Refer To Weight List) |
| Structure |
Refer To Structure & Material List |
| Material |
“W” type: Blower with water cooling for pressure 8000 ~ 10000 mmAq & vacuum -5000 ~ -6000 mmAq
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Usage Of Performance Table
The performance table shows relationships among blower model No., bore, RPM, discharge pressure, actual air volume and shaft power.
1. The air volume shown in the performance table represents a suction volume under standard suction condition (temp. 20℃, absolute pressure 1.0332 kg/cm2, relative humidity 65%)
2. Incase an air flow under the normal condition (0℃/1.0332 kg/cm2 abs) is equivalent to an suction pressure, it can be converted to an air flow under the standard condition by means of the following formula:
Qs = Qn × 1.0732
Qs: air flow under standard condition (indicated in the performance table) m3/min
Qn: air flow under normal condition m3/min
3. An air flow under the discharge condition can be converted to an air flow under standard condition (indicated in the performance table):
| Qs = Qd × |
1.0332 ＋ Pd |
× |
273 ＋ ts |
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1.0332 |
273 ＋ td |
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| Qd: air flow under discharge condition m3/min |
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ts: suction temperature ℃ |
| Pd: discharge pressure kg/cm2 (mmAq/10000) |
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td: discharge temperature ℃ |
4. Seek blower model No., bore, RPM and shaft power of the performance table based on the air flow and required discharge pressure obtained as a result of the aforementioned results.
5. As the selection covers two models, select the smaller for economic, but select the bigger with the advantage of lower RPM.
6. The performance table shows color-distinguished electric motor outputs. Use the electric motors of those outputs.
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Structure & Material List
| NO. |
NAME |
MATERIAL
(JIS / AISI.ASTM) |
NO. |
NAME |
MATERIAL
(JIS / AISI.ASTM) |
| 1. |
Gear Case |
FC25 / A48-40 B |
11. |
Seal Case |
FC25 / A48-40 B |
| 2. |
Oil Splash |
SS41 / * |
12. |
Pulley |
FC25 / A48-40 B |
| 3. |
Oil Plug |
S45C / 1045 |
13. |
Nut |
SS41 / * |
| 4. |
Bearing |
SUJ2 / 52100 |
14. |
Seal |
NBR (Nitrile Butadiene Rubber) |
| 5. |
Bearing Case |
FC25 / A48-40 B |
15. |
Nut |
SS41 / * |
| 6. |
Labyrinth Seal |
SS41 / * |
16. |
Shaft |
SCM440 / 4140 |
| 7. |
Eye Bolt |
S45C / 1045 |
17. |
Main Casing |
FC25 / A48-40 B |
| 8. |
Rotor (Lobe) |
FC25 / A48-40 B |
18. |
Spur Gear |
SNCM21 / 8620 |
| 9. |
Side Cover |
FC25 / A48-40 B |
19. |
Oil Drain |
S45C / 1045 |
| 10. |
Oil Case |
FC25 / A48-40 B |
20. |
Oil Gauge |
S45C / 1045 |
*SS41 = Steel Structural, tensile Strength 41 kg/cm2 |
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Weight List
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CR-40 |
CR-50 |
CR-65 |
CR-80 |
CR-100 |
CR-125 |
CR-150 |
CR-200 |
CR-250 |
CR-300 |
CR-350 |
| 01 |
Blower |
24.2 |
77.2 |
90.2 |
168.2 |
191.6 |
353.2 |
403.0 |
693.4 |
873.6 |
2010.0 |
3850.0 |
| 02 |
Base |
10.0 |
14.4 |
14.4 |
18.0 |
18.0 |
32.6 |
32.6 |
62.2 |
66.2 |
80.0 |
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| 03 |
Safety Cover |
2.4 |
2.8 |
2.8 |
5.4 |
5.4 |
9.8 |
9.8 |
12.8 |
12.8 |
37.0 |
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| 04 |
Inlet Silencer |
0.6 |
12.0 |
13.4 |
20.6 |
21.8 |
42.4 |
43.2 |
122 |
218.6 |
300.0 |
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| 05 |
T Joint |
1.0 |
6.4 |
7.2 |
8.2 |
10.0 |
15.6 |
19.0 |
18.4 |
29.8 |
35.0 |
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| 06 |
Safety Valve |
2.2 |
2.2 |
2.2 |
2.2 |
2.2 |
3.8 |
3.8 |
3.8 |
3.8 |
35.0 |
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| 07 |
Pressure Gage |
0.4 |
0.5 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
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| 08 |
Check Valve |
0.8 |
0.8 |
1.4 |
1.4 |
2.0 |
3.2 |
4.6 |
7.6 |
28.0 |
40.0 |
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| 09 |
Outlet Silencer |
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13.4 |
14.8 |
22.8 |
23.0 |
41.8 |
44.0 |
117.6 |
221.6 |
300.0 |
250.0 |
| 10 |
Expansion Joint |
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3.6 |
4.8 |
4.8 |
6.2 |
9.0 |
10.6 |
15.0 |
25.0 |
40.0 |
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Total |
41.6 |
138.0 |
158.4 |
252.0 |
280.6 |
512.0 |
571.0 |
1053.2 |
1484.8 |
2877.4 |
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| 11 |
Filter Tank |
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25.0 |
28.0 |
36.0 |
40.0 |
57.2 |
62.0 |
108.2 |
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| 12 |
90 Degree Elbow |
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3.4 |
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5.0 |
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13.4 |
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24.8 |
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(Units: KG)
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Features
Three Lobes Reduce Vibration And Noise
Cutes three lobes blower are new series roots type blower. By CNC machine, we made precise rotor's promote performance, lower noise and vibration.
． Wide range for air volume pressure and vacuum.
1. Bore : 25A ~ 350A (1” ~ 14”)
2. Capacity : 0.1 ~ 250 m3/min
3. Pressure : 0 ~ 10000 mmAq
4. Vacuum : -6000
． Stable air flow and less pressure variation.
． Clean air without oil moist.
． Construction simple and easy maintenance.
． Bearings are all lubricated by oil moist to longer life.
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Why You Select Cutes New Three Lobes Root's Blower
Conventional blowers result pressure pluses and vibrations rob power and shorten the life of every bearing, gear and other drive train components.
1. LOWER NOISE
Pressure pulses are the major noise source of blower.
Three lobe's design can efficiently reduce noise by approximately 5 dB.
2. LONGER BEARING LIFE
Less vibration transmitted through the lobe results approximately 20% longer bearing life.
3. LOWER ENERGY CONSUMPTION
Three lobe's deisg control backflow pressure to rotor, so reduce energy consumption.
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