I. Introduction:
 
Two-stage compressed oil-injected screw air compressor possesses the air end with a reasonable pressure ratio, ultra-small leakage, ultra-low noise. It combines the primary compression rotor and the secondary compression rotor in a housing and is driven directly by the front gear so that each stage of the rotor can achieve the optimum line speed, matching to the free air delivery during the operation.  Meanwhile the reasonable pressure ratio can effectively reduce the compressor leakage, therefore, the compression efficiency is much higher than the single-stage compression. So, compared to single-stage compression, two-stage compression is more energy-efficient.
 
Two-stage compressed oil-injected screw air compressor, at the same power, comparing to the single-stage compressed oil-injected screw air compressor is with more than 12% ~18% of free air delivery. In other words, for the same free air delivery, two-stage compressor can save 15% of the power than the single-stage compressor. The bearing capacity of the rotor and bearing is small, with big rotor diameter, low speed, so the operation speed is more reliable.
 

II. Technical specification
III. CE & ISO Certificates:


Package photos:




On-site photos:


IV. Company Introduction
SHANGHAI HONEST COMPRESSOR CO., LTD.  is one UK wholly-owned compressor company, which was situated in shanghai in 2004, based in technical cooperation with European air end manufacturer and British O.S.G. OSG Shanghai specializes in manufacturing the world-class screw compressors and air purification equipments.
In order to meet customers' expectations and requirements, OSG shanghai integrates the compressing system to embody the merits of reliability, energy saving, silence, convenience.  OSG Shanghai had obtained the compressor production license (certificate No: XK06-010-00597), quality certificate and general machinery certificate, ISO 9001:2008 certificate and CE certificate.
 OSG has established a nation-wide service system of 40 offices, and provided comprehensive services, such as consulting, training, repairing, spare parts supplying, etc. OSG shanghai also do OEM for trading companies and agents, according to their requirements.
 OSG shanghai welcome customers and engineers all over the world to study, train and cooperate. Welcome to OSG Shanghai.
 
 
V. Company Advantages
1.Enormous potentiality, long history
Shanghai Honest Compressor Co., Ltd. is one British wholly-owned enterprise. Currently in China, OSG has set up three major manufacturing bases (Shanghai Honest Compressor Co., Ltd, Zhejiang Ulite Tools Co.,Ltd., Guangdong OSG welding), five Manufacturers. Meanwhile we cooperate with the European world-advance air end manufacturer. OSG shanghai possesses a complete production, sales and after-sales service system. OSG has 40 offices and more than 80 after-sales service centers, and products are sold to more than 20 countries.
 
2. Advanced configuration, world-renowned components, abundant production experience.
    The control system is the most advanced. The controller is designed and manufactured by Schneider, France. It is equipped with the large Chinese-English liquid crystal display screen. It can monitor more than 20 main operating parameters, and has the functions of fault recording, maintenance and alarm shutdown. It can achieve efficient intelligent control, unattended.
Remote control: the computer processor can directly check the user's real-time operating system. Combine the reliability, energy saving, practicality in one. remote control can start, stop, load, unload the compressor and also other local control can be carried out. The operation, alarm and fault and relative local information can be monitored. (detailed description followed)
Remote control function:
Multiple compressors remote centralized control: reduce system pressure, reduce energy consumption, real-time monitoring.
Dual pressure setting: Two system pressure bands can be set manually or automatically to optimize energy use and reduce operating costs.
Delayed secondary shutdown: This function controls the motor to run only when needed, allowing the motor to run less and minimize the energy consumption.


6:  FAQ
 
1. Q:Are you a factory or trading company? 
A: We are a factory.
2. Q:Where is your factory located? How can I visit there? 
A: Our factory is located in shanghai,china.Or you can take train to Shanghai Station.All our clients, from home 
or abroad, are warmly welcome to visit us!
3. Q:How does your factory do regarding quality control? 
A: "Quality is priority. we always attach great importance to quality controlling from the very beginning to the 
very end. Our factory has gained ISO9001:2008  authentication.

 7: Contact ways
Shanghai Honest Compressor Co., Ltd
1071,YONGXIN ROAD ,XUHANG TOWN,JIADING DISTRICT,SHANGHAI,CHINA
Tel: 86-21-69177205  Fax: 86-21-69177182
Phone:0086-18916970085 or 0086-13501933254
 
 
Web:osgcompressor.en.made-in-china.com