55kW 75HP Two Stage Energy-saving Stationary Oil-injected Screw Air Compressor Compressor tornillo
Two-stage compression energy saving principle:
Oil-injected screw air compressors use two-stage compression to improve the energy efficiency of the compressor. The two-stage compression screw main engine adopts two-stage segmented compression, namely the first-stage compression and the second-stage compression. After the first-stage compression, the oil and gas can be fully mixed between the stages to reduce the suction temperature of the second-stage compression, thereby reducing power consumption.
The double-stage compression main engine reduces the compression ratio of each stage, reduces the internal leakage, improves the volumetric efficiency, reduces the bearing load, and improves the life of the main engine.
●Double-stage compression replaces single-stage compression, the exhaust volume is increased by nearly 15%, and the energy saving effect of up to 15% can be achieved.
The compression ratio of each stage is small, the compression ratio of each stage reduces the bearing load, the leakage is smaller, the volumetric efficiency is high, the vibration is low, and the noise is low.
●Under the same power, the two heads bear the load, the bearing is less stressed and the service life is longer.
Model: DDM-75
Free air delivery: 12.3m3/min
Working pressure: 8bar 0.8Mpa
Brand of screw air end: Two stage screw type
Control: PLC
Driven: direct
Cooling: by air
Compression oil amount:65L
Cooling air volume: 16000m3/h
Electric motor: 75hp 55KW 380V/50hz/3ph all kind of voltages can be customized
Rotating speed:1500r/min
Start method:Frequency conversion start
Discharge temperature: less than ambient +8 ℃
Noise: less than 76 dB(A)
Air outlet size: DN50
Dimension: 2900*1470*1625mm
Weight: 1780kg
Technical Parameter
1.power frequency
| MODEL |
Air flow Capacity (m³/min) |
Power
(kW)
|
Noise
(DB)
|
Outlet
Diameter
|
Dimension
( mm)
|
Weight
(Kg)
|
| 0.6Mpa |
0.7Mpa |
0.8Mpa |
1.0Mpa |
1.3Mpa |
| DD-75 |
15.80 |
14.70 |
13.00 |
9.50 |
8.60 |
55 |
70 |
DN50 |
2300x1300x1830 |
1534 |
| DD-100 |
18.80 |
17.40 |
15.50 |
12.80 |
10.00 |
75 |
72 |
DN50 |
2300x1300x1830 |
1700 |
| DD-125 |
21.30 |
20.70 |
19.50 |
16.50 |
13.00 |
90 |
72 |
DN65 |
2550x1630x1850 |
2080 |
| DD-150 |
26.50 |
26.30 |
25.00 |
20.00 |
18.80 |
110 |
72 |
DN65 |
2550x1630x1850 |
2120 |
| DD-175 |
34.00 |
32.60 |
30.00 |
24.00 |
20.00 |
132 |
78 |
DN80 |
3000x1828x2310 |
4850 |
| DD-220 |
41.00 |
38.00 |
37.00 |
29.60 |
24.50 |
160 |
78 |
DN80 |
3000x1828x2310 |
5000 |
| DD-250 |
44.00 |
41.00 |
40.00 |
34.00 |
31.00 |
185 |
78 |
DN100 |
3460x1940x2230 |
5900 |
| DD-275 |
48.00 |
44.00 |
45.00 |
40.00 |
33.00 |
200 |
78 |
DN100 |
3460x1940x2230 |
6200 |
| DD-275 |
55.00 |
51.00 |
50.00 |
43.00 |
38.00 |
220 |
80 |
DN125 |
3860x2130x2380 |
8500 |
| DD-350 |
60.00 |
57.00 |
56.00 |
47.00 |
43.00 |
250 |
80 |
DN125 |
3860x2130x2380 |
8650 |
2.Permanent magnet
| Model |
Air Delivery (m3/min) |
Power (kW) |
Noise (Db) |
Outlet diameter |
Dimension (mm) |
Weight (Kg) |
| 0.7Mpa |
0.8Mpa |
1.0Mpa |
1.3Mpa |
Length |
Width |
Height |
| DDM-30 |
4.50 |
4.20 |
3.40 |
2.60 |
22 |
68 |
G1 |
1440 |
830 |
1265 |
840 |
| DDM-40 |
6.05 |
5.80 |
4.18 |
4.00 |
30 |
68 |
G11/2 |
1600 |
940 |
1410 |
950 |
| DDM-50 |
7.50 |
6.80 |
6.00 |
4.60 |
37 |
68 |
G11/2 |
1600 |
940 |
1410 |
1050 |
| DDM-60 |
10.50 |
9.90 |
6.80 |
5.71 |
45 |
72 |
G2 |
2000 |
1120 |
1590 |
1560 |
| DDM-75 |
13.60 |
12.30 |
10.15 |
7.00 |
55 |
76 |
DN50 |
2900 |
1470 |
1625 |
1780 |
| DDM-100 |
16.00 |
15.50 |
12.80 |
10.20 |
75 |
76 |
DN50 |
2900 |
1470 |
1625 |
2000 |
| DDM-125 |
20.70 |
19.50 |
16.15 |
13.20 |
90 |
76 |
DN65 |
3400 |
1757 |
1860 |
2700 |
| DDM-150 |
24.80 |
24.00 |
20.20 |
15.21 |
110 |
76 |
DN65 |
3400 |
1757 |
1860 |
3000 |
| DDM-175 |
29.00 |
28.00 |
23.20 |
18.70 |
132 |
78 |
DN80 |
3750 |
1900 |
1980 |
4650 |
| DDM-220 |
34.00 |
32.50 |
28.00 |
23.10 |
160 |
78 |
DN80 |
3750 |
1900 |
1980 |
4850 |
| DDM-250 |
39.00 |
38.00 |
32.00 |
27.70 |
185 |
78 |
DN100 |
3900 |
2100 |
1980 |
5900 |
| DDM-275 |
43.20 |
42.00 |
38.10 |
31.90 |
200 |
78 |
DN100 |
3900 |
2100 |
1980 |
6200 |
| DDM-300 |
48.51 |
46.20 |
41.20 |
31.60 |
220 |
82 |
DN100 |
4260 |
2182 |
2170 |
6200 |
| DDM-350 |
52.50 |
51.00 |
45.80 |
37.20 |
250 |
82 |
DN100 |
4260 |
2182 |
2170 |
6500 |
Successful Project
FAQ
1.Why customer choose us?
DHH COMPRESSOR JIANGSU CO.,LTD.with 23 years old history,we are specialized in Rotary Screw Air Compressor.Germany Standard and 13 years exporting experience help us won more than 30 loyal foreign agents.We warmly welcome your small trial order for quality or market test.
2.Are you a manufacturer or trading company?
We are professional manufacturer with big modern factory in Qidong,China,with professional design team.Both OEM & ODM service can be accepted.
3.Where is your factory located? How can I visit there?
Our factory is located in Qidong City, Jiangsu Province, China. We can pick up you from Shanghai, it's about 1 hour from Shanghai
Pudong Airport to our factory. Warmly welcome to visit us!
4.What's your delivery time?
380V 50HZ we can delivery the goods within 14 days. Other electricity or other color we will delivery within 22 days,if urgently order, pls contact our sales in advance.
5.How long is your air compressor warranty?
One year for the whole machine and two years for screw air end, except consumable spare parts and we can provide some spare parts of the machines
6.How does your factory do regarding quality control?
Quality is everything. we always attach great importance to quality controlling from the very beginning to the very end. Our
factory has gained ISO9001:2015 authentication and CE certificate.
7.How long could your air compressor be used?
Generally, more than 10 years.
8. What's payment term?
T/T,L/C,D/P,Western Union,Paypal,Credit Card,and etc.Also we could accept USD, RMB, Euro and other currency.
9.How about your customer service?
24 hours on-line service available.48 hours problem solved promise.
10.How about your after-sales service?
(1) Provide customers with installation and commissioning online instructions.
(2) Well-trained engineers available to overseas service.
(3) Worldwide agents and after service available.
