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| Warranty: | 24month |
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30% Energy Saving 90 kW 125 HP Variable Speed Industrial Screw Air Compressor
Variable frequency screw air compressor:
1. Constant pressure control: It can realize high-precision constant pressure control with a pressure fluctuation range of 0.01 MPa;
2. Variable frequency soft start: Eliminate the peak current when starting, avoid grid impact, avoid current impact through step-by-step speed adjustment, and improve flexibility
3. Prevent no-load: The compressor is no-load during operation, reducing ineffective energy consumption;
Permanent magnet motors use high-efficiency rare earth magnets, no loss of magnetism at 180°C, and long service life; energy saving is about 6% to 7% compared with ordinary frequency conversion motors;
It can exert the highest efficiency in a wider range and make the air compressor more energy-saving.
Technical Parameters
| Model | Volume flow m3/min | Power (KW) | Noise (DB) | Outlet diameter | Dimension (mm) | Weight (kg) | |||||||
| 0.7Mpa | 0.8Mpa | 1.0Mpa | 1.3Mpa | Length | Width | Height | |||||||
| RDF-30A | 3.7 | 3.6 | 3.2 | / | 22 | 68 | G1 | 1330 | 830 | 1265 | 400 | ||
| RDF-40A | 5.2 | 5 | / | 3.3 | 30 | 68 | G1 | 1330 | 830 | 1265 | 500 | ||
| RDF-50A | 6.5 | 6.2 | 5.6 | 4.9 | 37 | 69 | G1 1/2 | 1500 | 940 | 1415 | 655 | ||
| RDF-60A | 8.0 | 7.3 | 6.0 | 5.9 | 45 | 70 | G1 1/2 | 1500 | 940 | 1415 | 730 | ||
| RDF-75A | 10.1 | 9.5 | 8.7 | 7.3 | 55 | 70 | G2 | 1600 | 1060 | 1470 | 945 | ||
| RDF-100A | 13.6 | 12.8 | 11.3 | 9.2 | 75 | 72 | G2 | 2000 | 1120 | 1590 | 1291 | ||
| RDF-125A | 16.1 | 15.5 | 13.6 | 12.5 | 90 | 72 | G2 | 2000 | 1120 | 1590 | 1421 | ||
| RDF-150A | 21.2 | 19.6 | 17.8 | 15.5 | 110 | 72 | DN65 | 2400 | 1630 | 1980 | 2170 | ||
| RDF-175A | 24.1 | 23.2 | 19.5 | 17.8 | 132 | 72 | DN65 | 2400 | 1630 | 1980 | 2350 | ||
| RDF-220A | 28.8 | 27.8 | 23.0 | 20 | 160 | 72 | DN80 | 2800 | 1828 | 2150 | 3620 | ||
| RDF-250A | 32.5 | 31.2 | 27.5 | 25.8 | 185 | 72 | DN80 | 2800 | 1828 | 2150 | 3920 | ||
| RDF-275A | 34.5 | 34.0 | 30.5 | 28.0 | 200 | 76 | DN80 | 2800 | 1828 | 2150 | 4200 | ||
| RDF-300A | 36.8 | 34.7 | 31.5 | 29.5 | 220 | 76 | DN100 | 3000 | 1900 | 1930 | 4800 | ||
| RDF-350A | 43.0 | 41.5 | 38.0 | 34.9 | 250 | 76 | DN100 | 3000 | 1900 | 1930 | 5200 | ||
| RDF-375A | 51.3 | 50.6 | 46.0 | 41.5 | 280 | 82 | DN100 | 4360 | 2150 | 2258 | 7500 | ||
| RDF-420A | 56.8 | 55.9 | 50.1 | 42.0 | 315 | 82 | DN125 | 4360 | 2150 | 2258 | 7500 | ||
| RDF-475W | 66.1 | 65.4 | 55.1 | 46.0 | 355 | 82 | DN125 | 4360 | 2150 | 2258 | 8000 | ||
| RDF-525W | 75.1 | 74.3 | 64.5 | 54.0 | 400 | 82 | DN125 | 4360 | 2150 | 2258 | 8200 | ||
1.Packing Details: Plywood crate pallet plus foam board and bubble film, Full closed wooden case. 1pcs/each package (for stationary screw air compressor)
2.Shipping method: by sea, by LCL/FCL or as requested
3.Delivery method: FOB, CFR, CIF and EXW etc.
4.Delivery time: in 7-15 days after receiving deposit (customized machines not included)
Shanghai Rocky Machinery Co., Ltd. was established in 2003 and has 18 years of experience in the air compressor industry. It is an innovative enterprise integrating production, trade, service, research and development.
We are professional gas compressors manufacturer since 2003, Germany standard, more than 100 workers, annual sales exceeding 20 million US dollars with 13 years of exporting experience, strict quality control and delivery on time. We not only supply gas compressor including screw air compressor, but also supply spares parts and after-treat machines.
Our main products series as follows.
2. Dry Oil-free Screw air compressor
3. Oil-free water lubricated screw air compressor
4. Oil-free scroll air compressor
5. Oil-free/Oil-lubricated piston compressor
6. Mobile Screw air compressor( Motor driven/ Diesel engine driven)
7. Oxygen/Nitrogen generators/boosters
8. High Pressure Breathing Air Compressor
9. Refrigerant air dryer/ Desiccant air dryer
10. Precision line filter/ water separator
Rocky will continue to promote technological innovation and progress in line with the mission of "innovation reflects value", and achieve win-win results with global partners, suppliers and employees. Create a new world of "energy saving, envir-onmental protection and intelligence" in the field of air compressors.
Q1. Are you trading company or manufacture ?
A: We are professional manufacture of screw air compressor of Taicang,Jiangsu,China. More than 18 years of experience in air compressor manufacturing.
Q2. How long is the delivery time ?
A: For standard voltage ,15 working days. Non-standard ,please contact our sales.
Q3. What's payment term ?
A: T/T, L/C, D/P, Western Union, Paypal, Credit Card, and etc. Also we could accept USD, RMB, Euro and other currency.
Q4. How about your after-sales service ?
A: 1.Provide customers with installation and commissioning online instructions.
2. Well-trained engineers available to overseas service.
3.Worldwide agents and after service avaiable.arrange our engineers to help you training and installation.
Q5. How about your warranty?
A: One year for the whole machine and two years for screw air end, except consumable spare parts.
Q6. Do you have any certificate ?
A: Yes, per different customer's market need ,we can offer CE ,ISO etc certificate.
Q7. What about the maintenance ?
A: First maintenance need to be done after 500Hours, and then every 2000-3000 hours to do the normal maintenance, and consider the actual environment.
Q8. How do you control quality ?
A: 1. The raw materials are strictly inspected
2. Some key parts are imported from overseas
3. Each compressor must pass at least 5 hours of continuous testing before leaving the factory.
Q9. Do you offer OEM service ?
A: Yes.Both OEM & ODM service can be accepted.
Q10.How long could your air compressor be used?
A: Generally, more than 10 years.
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