Industrial Low Pressure Rotary Screw Air Compressor
Model: UD45A-2(bar) , UD45A-3(bar) , UD45A-5(bar)
1. Application Industry:
For those which exhaust pressure need 2bar - 5bar. The minimum can reach 1.5bar.
1 ) Chemical Fiber & Textile
2 ) Glass industry
3 ) Biological fermentation
4 ) Cement transportation
5 ) Chemical engineering
2. Energy Efficient:
1 ) Saving 30% energy than normal pressure
2 ) Specially designed air end for low pressure: to reduce exhaust pressure resistance and keep high performance.
3 ) Forced lubrication for Oil pump: to make sure enough oil injection under low pressure and keep optimal oil gas mixing ratio.
3. Characteristics:
1 ) Working pressure: from 1.2bar to 5.5bar
2 ) Four stage motor in direct connection, with big rotor: low rotary speed, to insure machine high performance.
3 ) Enlarged oil gas separator: to make sure oil contamination is between 2 to 3 ppm.
4 ) Enlarged above 30% oil cooler area : to make sure machine good running in summer without overheat.
5 ) Independent designed air end and pressure ratio: to maintain optimal ratio power.
6 ) EPC intelligent control system: automatically adjust air flow according to customer 's needs.
7 ) Continuously working without stop machine
8 ) specific power low to 2.2kw/m3/min
4. Technical Parameters : UD45A-2(bar) , UD45A-3(bar) , UD45A-5(bar)
| Item | Unit | Model |
| UD45-2 | UD45-3 | UD45-5 |
| Compress media |
| Air | Air | Air |
| Air flow | m³/min | 16.0 | 13.7 | 9.8 |
| Suction pressure | MPa(A) | 0.1 | 0.1 | 0.1 |
| Work pressure range | MPa(G) | 0.12~0.25 | 0.18~0.35 | 0.38~0.55 |
| Discharge temperature | ºC | Ambient temperature +10 | Ambient temperature +10 | Ambient temperature +10 |
| Oil content | ppm | ≤1 | ≤2 | ≤2 |
| Discharge air granularity | μm | ≤1 | ≤1 | ≤1 |
| Outlet dimension |
| DN 125 | DN 125 | DN 50 |
| Cooling type |
| Air cooling/Water cooling | Air cooling/Water cooling | Air cooling/Water cooling |
| Ambient temperature | ºC | ≤46 | ≤46 | ≤46 |
| Drive type |
| Gear drive | Gear drive | Direct drive |
| Nominal power of motor | kW | 45 | 45 | 45 |
| Insulation Grade of motor | IP | 55 | 55 | 55 |
| Protection Class of motor |
| F | F | F |
| Temperature rise |
| B | B | B |
| Working type |
| S1 continuous working | S1 continuous working | S1 continuous working |
| Motor voltage | V | 380 | 380 | 380 |
| Frequency | Hz | 50 | 50 | 50 |
| Start type |
| Fix speed/VFD | Fix speed/VFD | Fix speed/VFD |
| Noise | dB(A) |
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| Dimension | mm | 2600×1460×2080 | 2600×1460×2080 | 1350×1150×1450 |
| Weight | Kg | 3400 | 2450 | 1300 |
Brief of company.
Since founded in Shanghai in 2002, UNITED OSD has established itself as a leading developer and manufacturer of compressed air solutions in China. In 2013, UNITE OSD became a joint-venture with Hitachi as both parties share the same business philosophy which is to take quality as priority. Aimed to be a famous and trustable brand in the world, UNITED OSD will, as always, make every effort to innovate products tech and expand brand influence.
Company history
The story begins with the Sun family starting their journey of compressor business more 30 years ago. Mr. Sun QiMin, The founder of UNITED OSD company with sagacious perspective and gut devoted himself into this field leaded and trained a massive of outstanding compressor elites scatting almost every corner of mainland China with more than 100 branches, people in compressor industry honored him as "Management Master".
Like every successful enterprises gone through many roughly paths, Mr. Sun Yunchuan, a well-trained engineer and talented professional manager with over 20-year experience in company management and governance once served as a leader of AIRTOP GROUP. His knowledge and vision help UNITED OSD pull through many difficulty and hardships and turn the table in the fierce competition environment.
The idea of establishing UNITED OSD derived from 15 years ago, Mr. Sun QiMin and Mr. Sun Yunchuan met every year and shared their dreams to each other till the opportunity come in 2002 arrived is the third shareholder Wu XiangXin, a new blood. Once serve as COO for several compressor companies now he is the head of Peking Branch. 10 years of sales and service experience forge this man to be elite in marketing and governance. With his enthusiastic attribute, a joint-venture set up.
The Brand "UNITED" was also a company culture and guideline to every member.
"Dream on passion" is their spirit. UNITED OSD people will continue their efforts and dedicate to increase social responsibility in return for many years of success and endeavor to evaluate the brand awareness for offering a bright future to every stakeholder.
Products.
UNITED OSD, a pioneer in air compressor technology, is proud to offer a wide range of compressors from 5.5KW-630KW, 0.69m3-120m3, including screw air compressor both fixed speed and variable speed, low-pressure compressor, two-stage screw compressor, and oil-free scroll compressor, which can suit various customer requirements. Every machine goes through a process of a full ex-factory inspection to by the professional consultants/engineers.
Advantages
1. Stable & Reliable
UNITED OSD always takes quality as priority. To ensure high-reliability, many key parts are imported from America and Europe. Each machine has to pass a series of serious tests before shipment to achieve the best performance in various work conditions.
2. Energy-saving
UNITED OSD is committed to energy-saving. Large-diameter rotors are used to ensure high output and lower-power consumption. Models from 5kw-45kw are with level 1 energy-efficiency which is the highest level. For big models, UNITED OSD has developed two-stage screw compressor which was designed specially for energy-saving.
3. Innovation Technology
UNITED OSD has its own Development and Research Center which is committed to innovate its technology. UNITED OSD has obtained many patents in air compressor design. Our unique and reasonable layout reduces the machine running temp. Clever design by assemble moisture separator and after cooler together can save space and energy and reduce leakage.
4. Customer Service.
UNITED OSD takes the lead in providing 2 years warranty for the complete machine in the industry in China. Instant and warm-hearted service wins the trust customers and friendship, and thus long-term business. Free technical training is also available.
