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  • Product Name: Direct Drive Series(RCD)
  • Product No: Direct Drive Series(RCD)
  • Added time: 2015-12-19
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MODEL

Displacement / pressure

m³/min/MPa

Screw speed

r/min

Motor speed

r/min

Motor Power

KW

Noise

dB(A)

Dimensions

(L*W*H)mm

Weight

kg

RCD-20A 2.5/0.7 2300 1450 15 63 1120*810*1260 630
2.4/0.8 2266
1.9/1.0 1912
1.6/1.25 1715
RCD-25A 3.2/0.7 2850 1450 18.5 63 1120*810*1260 680
3.0/0.8 2700
2.4/1.0 2400
2.1/1.25 2150
RCD-30A 3.8/0.7 3450 1450 22 78 1230*950*1410 780
3.6/0.8 3222
3.2/1.0 2825
2.5/1.25 2550
RCD-40A 5.0/0.7 4405 1450 30 78 1230*950*1410 850
4.7/0.8 4130
4.3/1.0 3582
3.6/1.25 3198
RCD-50A 6.7/0.7 3000 1450 37 75 1450*1030*1520 1030
6.5/0.8 2900
5.7/1.0 2400
5.2/1.25 2200
RCD-60A 7.5/.07 3300 1450 45 75 1450*1030*1520 1100
7.5/0.8 3300
6.7/1.0 3000
5.5/1.25 2400
RCD-75A/W 9.2/0.7 4300 1450 55 78 2000*1450*1600 1450
8.8/0.8 4150
8.2/1.0 3900
7.5/1.25 3500
RCD-75AD/W 10.5/0.7 2300 1450 55 68 2000*1450*1600 1650
9.8/0.8 2150
8.8/1.0 1900
7.5/1.25 1600
RCD-100A/W 14.1/0.7 3100 1450 75 72 2000*1450*1600 1850
13.1/0.8 2900
11.8/1.0 2500
10.0/1.25 2200
RCD-125A/W 16.5/0.7 3650 1450 90 75 2000*1450*1600 2050
15.6/0.8 3450
14.0/1.0 3100
12.1/1.25 2612
RCD-150A/W 21.3/0.7 2250 1450 110 75 2800*1600*2080 2200
20.0/0.8 2128
17.8/1.0 1848
15.1/1.3 1608
RCD-175A/W 24.7/0.7 2621 1450 132 75 2800*1600*2080 2400
23.2/0.8 2462
20.7/1.0 2129
17.7/1.3 1848
RCD-200A/W 29.8/0.7 2900 1450 160 78 2800*1600*2080 3000
28.2/0.8 2753
25.2/1.0 2396
21.7/1.3 2082
RCD-250A/W 34.1/0.7 3465 1450 185 78 2800*1600*2080 3500
32.3/0.8 3272
29.1/1.0 2850
25.2/1.3 2482
RCD-300W 40.3/0.7 3500 1450 220 75 3800*2100*2400 4200
38.2/0.8 3332
34.4/1.0 2900
29.9/1.3 2700
RCD-350W 44.2/0.7 3800 1450 250 75 3800*2100*2400 5000
40.3/0.8 3500
37.7/1.0 3200
32.6/1.3 2900
RCD-400W 55.0/0.7 2850 1450 315 75 3800*2100*2400 6000
52.3/0.8 2600
47.1/1.0 2300
40.7/1.3 2050

 

Detailed description: 

5:  6 gear ratio of screw rotor is employed for all RCB series,with the oversize diameter rotor,ultra low rotate speecand low energy consumptionithe high effciency mechanical characteristic of big air displacement can beachieved,the efficiency is 5% ~ 15% higher than the counterpart product of other brands and the rotate speed ofscrew is 35% lower than the counterpart product of other brands.lt features durability,low-noise and otheradvantages.
Intelligent display controI:More convenient in supervision by working with air compressors.Overall management
can be done from office computers.

 

PERFORMANCE TABLE OF ROT-COM COMPRESSOR UNIT (50 HORSE POWERS)

Content

RCD-50A

Other
Motor Power(kw) 37kw 37kw
Motor speed(r/min) 1450r 1450r
Working pressure(Mpa) 0.8Mpa 0.8Mpa
Screw extruder speed(r/min) 3000r 4300r
Screw gear ratio 5:6 5:6
Displacement(m³/min) 6.5m³ 6.0m³
Exhaust temperature(℃) 85℃ 93℃
Noise(dB(A)) 72dB(A) 75dB(A)

 

A.Precision oil and gas separator

Precision efficient oil and gas separator using vertical antagonistic device separation adsorption gravity, reduce the the displacement oil content in the compressed air, compressed air quality, oil content control below 3ppm.

B.Minimum pressure valve

Starts, the minimum pressure valve is kept closed in order to maintain the desired pressure within the system, until the value reaches the set pressure 0.45Mpa opened only; shutdown, the pressure valve is closed to prevent air reflux.

C.Capacity Adjustment intake valve

Providing system required compress air consumption, automatically regulate the intake volume increase and decrease, reach the capacity adjustment effect, reduce the power consumption, save energy, better able to reduce operating cost ( about 10% ).

D.Screw machine

Properties advanced third generation ofαtype asymmetric 5:6 gear ratio screw host, reduce the rotor clearance pressure drop, reduction of high pressure gas leakage back quantity, increase the volume efficiency, efficiency of gear ratio and 4:5 beyond 4:6 teeth than the old rotor.

E.Electric machinery

High-quality brand-name motor, protection grade class IP54, class F. 

High performance sources:

 

Our RCD series volume type compressor host, with αtype asymmetric 5:6 gear ratio of large diameter screw rotor, using large multi bearing design, which makes each bearing bears less power, stability of the screw axial force and radial force which is more balanced, achieve reduce bearing power load, thereby extending the bearing and main engine service life.

 

High efficiency output:
 

Big rotor low speed so that each unit brake horsepower relative can produce more gas. In practice, we put between the rotor and the void called " leaked Road King ", " small rotor leakage Road King " than the greater trochanter of the much larger, and the rotor to turn faster bearing wear more big, drag coefficient is bigger, coupled with the gear or belt friction. Small rotor efficiency loss greatly increased energy consumption. RCD series of large-diameter rotor low speed large capacity, creating advantages, beyond peer horsepower competitors. 

The service life of the compressor depending on: 

Screw steel host - > > > speed bearing screw rotor rotor diameter and speed determines the exhaust volume. In theory, this means to produce the same amount of air compression chamber, the smaller the small rotor must be relatively large compression chamber of large rotor to rotate faster. The rotor is your compressor to replace parts of the most expensive, and it also determines most of the running costs.

 

Project

4 to 6, toothed

5 to 6 toothed

Number of teeth

Shaped teeth less pressure large rotor gap

Rotor gap to reduce the pressure drop, reducing the amount of the high pressure gas leak back to increase the volumetric efficiency.

Bearing spacing

Pitch longer, running, gear and rotor short-lived flexing

Spacing shortest, flexing minimum, the diameter of the rotor design

Air sealing line

Rotor reduce the flow of compressed gas back to the gas seal line, but the bearing is approaching the end of its useful life, the bearing clearance to expand gas seal line produces severe wear, reduce efficiency, and even burned body

Unused gas seal line, the number of teeth to maintain the efficiency of the design of the rotor

 

 

5 to 6 the advantages of the toothed

 

(1)Back to the blow hole small

(2)Yin and yang rotor airtight better

(3)The same outer diameter of the rotor, its displacement to a large

(4)The rotor high precision by experiment that when the gap will be reduced to 1% of the volumetric efficiency increase 0.01mm. 

 Note:

 1.A Said air-cooled;

 2.W Said water-cooled;

 3.The Company continue to study the product improvements, the right to retain design changes, such as the specifications are subject to change without notice, please understand.

 

Address: Longgang District, Ailian Industrial Zone (Lo Steel Industrial Park) Tel:0755-89626333 Fax:0755-89626533
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