175 HP 132 kW Water Cooled Double Stage Screw Air Compressor for Construction Industry
Model: DDM-175
Free air delivery: 29m3/min
Working pressure: 7 bar 0.7Mpa
Brand of screw air end: Two stage screw type
Control: PLC
Driven: direct
Cooling: by air
Electric motor: 180hp 132KW 380V/50hz/3ph all kind of voltages can be customized
Discharge temperature: less than ambient +8 ℃
Noise: less than 78 dB(A)
Air outlet size: DN80
Dimension: 2800*1828*2150mm
Weight: 4850kg
Technical Parameter
| 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 |
Why two-stage compression is more energy-efficient than single-stage?
According to the working principle of compressor know, isothermal compression isone of the most province work. The curves for the compression process indicator diagram, below 12 '3' for the isothermal compression process, and the vertical form of area of 613"4 indicated work for isothermal compression. Curve 123 "as the primary compression process, and the vertical form of area of 613 4"as the level of compression instruction work.Curve 12,22,2 '3 for two stage compression process, and the vertical form of area is the sum of 6125 and 52' 34 (6122 '34) for the two stage compression indicated work. From here you can see that the isothermal
compression process 613 '4 minimum area (indicated work), but in actual compression process of the compressor can't isothermal
compression, level 13 more compression than isothermal compression' 3 "the power of the area, and two stage compression level of
compression than the power of 2 '23"3 area.
Two-stage compression energy saving case
1.250KW single-stage compressorion type compressor running in the state full loading, the eletricitity cost per hour is about 200 yuan, operating 800 hours per year, the electricity cost is about 1.6 million;
2. Compared with the single-stage compressor,two-stage compression compressor can reduce more than 10% of eletricity consumption. Two-stage compression will save 16 million per year.
The advantages of permanent magnet motors over ordinary asynchronous motors
1. High efficiency: the loss of the excitation system is eliminated and the efficiency is improved
2. High efficiency under low load conditions: The energy efficiency of permanent magnet motors is more than 9% higher than that of conventional asynchronous motors when operating at full load, and as the speed decreases, its energy efficiency remains unchanged;
3. Large overdrive torque: the ratio of the maximum starting torque to the nominal torque of the permanent magnet synchronous motor can reach more than 3 times, while the general asynchronous motor is only 1.6 times
4. The control is more stable: the corresponding time of the permanent magnet motor is less than 50ms, and the gas production can be adjusted in a large range in an instant to stabilize the air pressure;
Air end
More stable, no mechanical transmission failure: the high-efficiency permanent magnet synchronous motor and the screw male rotor adopt an embedded integrated shaft direct connection structure, without gear transmission, completely eliminating the hidden danger of gear pitting or broken teeth; two independent permanent magnet motors are integrated directly Drives two compression hosts, no hidden danger of coupling failure.
More energy-saving: the host is always running at an energy-saving speed
More efficient: high-efficiency permanent magnet motor + no transmission efficiency loss
More comfortable, low operating noise, eliminating the three major noise sources: no motor bearing noise, no gear meshing noise, no coupling transmission noise
More compact: the permanent magnet motor body is small, and the integrated structure saves space
About us
DHH compressor Jiangsu Co., Ltd. is a manufacturer who integrates R & D, manufacturing, sales and service. It was founded in 1996, with 26 years’ experience in this industry. We have five series of products: oil injected, oil-free, medium and high pressure, 2 ~ 5bar low pressure and diesel portable compressor. In 2017 we obtained more than 20 patents with certificate: ISO9001, EU CE. In 2018, we were identified as "high-tech enterprise" and "private-own technical enterprise".
Our Services
1.24/7 after sales service support in different languages.
2.Follow up the feedback of products in 2 months interval by email or call.
3.Guidance of installation and commissioning on site can be provided by factory-trained technicians or local Authorized Service Center.
4.Technical training for customers in DEHAHA air compressor factory or working site.
5.Plenty of original spare parts with proven quality are all available from our central stocks in Shanghai and all distributors’depots.
6.All kinds of technical documents in different languages.
FAQ
Q1:Are you factory or trading company?
A1: We are factory.
Q2:Where is your factory located? How can I visit there?
A2: 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!
Q3: Will you provide some spare parts of the machines?
A3: Yes, of course.
Q4: Warranty terms of your machine?
A4: Two years warranty for Air End, one year for spare part.
Q5: How long will you take to arrange production?
A5:380V 50HZ we can delivery the goods within 14 days. Other electricity or other color we will delivery within 22 days.
Q6:How does your factory do regarding quality control?
A6: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.
Q7: Can you accept OEM orders?
A7: Yes, with professional design team, OEM orders are highly welcome.
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Construction Industry Two Stage Screw Air Compressor 175HP 132kW Water Cooled Images
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