| After-sales Service: | Online Support |
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| Warranty: | 24month |
| Lubrication Style: | Lubricated |
| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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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.
Product feature
For more details, please contact us
Two-Stage Compressor Air End
1. Dependable, high-performance two-stage air end for maximum power savings, Delivers more air
2. Reduces power consumption
3. Extends air end bearing life
4. 460v motor coupled to air end via non-lubricated, flexible coupling
Fiberglass Fluid Filter
1. Aircraft-quality media provides better filtration
2. Up to 20% more efficient than conventional paper elements
3. Lengthens life of the compressor
Heavy-Duty Air Intake Filter
1. Provides finest inlet filtration in the industry (99.95%+ overall efficiency/0.4 micron)
2. Keeps fluid clean and extends life of other internal components
3. Reduces pressure drop throughout the operating life, resulting in energy savings
Enhanced Serviceability for Air-Cooled Oil Cooler and Aftercoolers
1. Easy to remove panels provide access for cleaning coolers
2. Motor Coupled to Air End Through Non-Lubricated, Flexible Coupling
3. Simplifies installation and start-up
Easy Maintenance
1.Access to all critical components even with a sound enclosure installed
Time Proven End-to-End Design
1. Reduces pressure drop through stages
2. Easy serviceability
Air-fluid separation
1. ASME psi rated tank
2. ASME pressure relief valve
3. Pleated air-fluid separator element for lower initial pressure drop
Cooling
4. Air-cooled units use mounted and piped aftercooler with quiet fan
5. Water-cooled units feature an air-in-shell, water-in-tube aftercooler design
Technical Parameters
| Model | Air Delivery (m3/min) | Power (kW) |
Noise (Db) |
Outlet diameter |
Dimension (mm) | Weight (Kg) |
|||
| 0.7Mpa | 0.8Mpa | 1.0Mpa | 1.3Mpa | L * W * H | |||||
| RK30APMII | 4.3 | 4.1 | 3.5 | 2.7 | 22 | 68 | G11/2 | 1500x1000x1350 | 650 |
| RK40APMII | 6 | 5.9 | 4.7 | 3.9 | 30 | 68 | G11/2 | 1500x1000x1350 | 700 |
| RK50APMII | 7.1 | 6.9 | 5.8 | 5.4 | 37 | 68 | G11/2 | 1500x1000x1350 | 750 |
| RK60APMII | 10 | 9.5 | 7.8 | 6.8 | 45 | 72 | G2 | 2100x1300x1650 | 1250 |
| RK75APMII | 13 | 12.5 | 9.2 | 7.5 | 55 | 76 | G2 | 2100x1300x1650 | 1300 |
| RK100APMII | 15.5 | 15.2 | 12 | 10.2 | 75 | 76 | G2 | 2100x1300x1650 | 1350 |
| RK125APMII | 19.8 | 19.5 | 15 | 14 | 90 | 76 | DN80 | 2500x1650x1900 | 2700 |
| RK150APMII | 24 | 23 | 19.2 | 16 | 110 | 76 | DN80 | 2500x1650x1900 | 2800 |
| RK180APMII | 27.5 | 27 | 23.7 | 19 | 132 | 78 | DN80 | 2500x1650x1900 | 3000 |
| RK220APMII | 33 | 32.5 | 27.5 | 22.5 | 160 | 78 | DN80 | 3000x1900x1950 | 4300 |
| RK250APMII | 39 | 36 | 32 | 27.5 | 185 | 78 | DN80 | 3000x1900x1950 | 4400 |
| RK275APMII | 43.5 | 41 | 35.5 | 31.5 | 200 | 78 | DN100 | 3600x2200x2200 | 5000 |
| RK300APMII | 51.5 | 48.3 | 38.5 | 35.5 | 220 | 82 | DN100 | 3600x2200x2200 | 5500 |
| RK350APMII | 54 | 51 | 45 | 38 | 250 | 82 | DN100 | 3600x2200x2200 | 6000 |
| RK380APMII | 60 | 57 | 50 | 43 | 280 | 82 | DN125 | 4000x2300x2300 | 6800 |
| RK420APMII | 65 | 62 | 56 | 50.5 | 315 | 82 | DN125 | 4000x2300x2300 | 7000 |
| RK480APMII | 75 | 73 | 64 | 55 | 355 | 82 | DN150 | 4200x2200x2350 | 8500 |
| RK540APMII | 84 | 82 | 72 | 61 | 400 | 82 | DN150 | 4200x2200x2350 | 9000 |
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Packaging & Shipping
Shanghai Rocky Machinery Co, Ltd. was established in 2003 and has18 years of experience in the air compressor industry. lt is an innovativeenterprise integrating production, trade, service, research and development.
Our company dominates strong technical skill, advancing manufacture equipmentand testing device, execute strictly of ISO9001 quality management system.As a CE certificated manufacturer, our Oil-free series air compressor alsoreaches Germany TUV Class 0 standard Main products have passed the testing of national technical authorities.energy consumption level has reached the international advanced level.
With more than 120 skilled employees and 18 senior engineers, eachproduction process is performed standardly and strictly. Germanytechnology and 14 years export experience have helped us to gain morethan 30 loyal overseas agents, and our valued customers have spreadacross more than 130 countries.
Rocky will continue to promote technological innovation and progress inline with the mission of "innovation reflects value", and achieve win-winresults with global partners, suppliers and employees. Create a newworld of "energy saving, envir-onmental protection and intelligence" inthe field of air compressors.
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 Rocky air compressor factory or working site.
5.All kinds of technical documents in different languages.
FAQ
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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