Environmental Denair oil free scroll Air Compressors made in China

 Environmental Denair oil free scroll Air Compressors Product Description  1.specification

Type	DW-4S	DW-7S	DW-11S	DW-15S	DW-18S	DW-22S	DW-30S	DW-37S
Air flow(liter/min)	415	360	830	720	1660	2075	2490	4150
Exhaust pressure(Bar)	8-10
Exhaust temperature(°C)	< ambient temperature+15°C(Air cooling)
Noise(dBA)	72(Air cooling)
Noise(dBA)	50	54	56	58	59	61	64	65
Voltage	380V/3phase/50HZ(Adjustable according to customers’ request)
Weight(kg)	230	360	430	550	680	900	1100	1300

    2.DENAIR Water lubricated oil free sroll air end advantage: Single screw air end advantage LOGO (1) "The two star wheel + a screw structure, which is the ideal force balance (2) The ideal isothermal compression Due to good water heat-conduction-performance , when lubricated water injects into compression chamber, the temperature will drop to less than 45 ℃, close to the suction temperature. (3) Absolutely no oil Replace oil with water, the realization of lubrication, cooling, sealing, four major functions of noise reduction, provides the high quality 100% oil free air, no pollution, emissions of water without special handling, accord with environmental protection requirement. (4) Low noise, small vibration Single screw compressor power balance, little vibration, therefore, no special requirements for foundation. Working cavity spray lubrication of water, no increase-speed gear, so low operating noise. (5) Long life air end rotor bearing can run 50000 hours; Resin materials star wheel can use 2.5 ~ 30000 hours, the compressor life up to 300000 hours.     Packaging & Shipping Pack in Seaworthy Plywood pallet, If just 1 set, load in a 20ft container by LCL.   Our Services   We provide Service spares for 1 yeari such as the following, and we also have 1 year warranty for the whole machine. If the problem is caused by our quality not by user's problem within the year, we could provide free  parts to change.  In common situation, Our air compressor could be used more than 10 years. We're broadening our overseas service system to more countries.  
  Company Information   In 1998, Shanghai office of Denair Group was established and started to sell original Denair Double Screw Air Compressors in Chinese market. We have developed a very good reputation. In 2006, Shanghai Denair Compressor Co.,LTD was established. We set up the R&D center and manufacturing factory in Songjiang District, Shanghai, and Brought in precision technology from Denair Group to develop and produce Denair Series products according to the working conditions. Now Our production ability reaches 200000 sets per year. Our products cover: Belt driven air compressor, direct driven air compressor, variable frequency air compressor, combined air compressor with air filter, air dryer and air tank,  piston air compressor, diesel portable air compressor, high pressure air compressor ,drill rig and so on.     FAQ   How long is your air compressor warranty?         Answer: 1 year. Do you provide After-sales service parts?              Answer: Yes, We could provide consumpable spares. How long could your air compressor be used?      Answer: More than 10 years. How about your price?                                           Answer: Based on high quality, Our price is still competitive. How about your customer service?                       Answer:  We could provide our customers prompt reply.