Oil free oilless high pressure Helium compressor booste ADVANTAGE: 1.TOTALLY 100% OIL FREE,NO NEED OIL 2.SUITABLE FOR OXYGEN,HYDROGEN,NITROGEN,HELIUM,ARGON,CNG AND SPECIAL GAS 3.NO POLLUTION ,KEEP SAME PURITY TO INLET GAS  4.RELIABLE AND TOP QUALITY,COMPARABLE WITH USA RIX BRAND. 5.TOP COST PERFORMANCE,LOW MAINTENANCE COST AND EASY TO BE OPERATIONAL, ONLY NEED TO BE CHANGE PISTON RING 6.4000 HOURS PISTON RING WORKING LIFE,1500-200O HOURS WORKING LIFE FOR FINAL STAGE RING 7.TOP BRAND MOTOR,AND CAN BE SPECIAL POINTED ,LIKE SIMENSE BRAND  8.SUPPLY JAPAN MARKET,QUALITY APPROVAL BY JAPAN STRICKLY SYSTEM 9.CE APPROVAL  Principle  1: totally Oil-type reciprocating piston 2 Cooling Type: Air-cooled or water-cooled (3) Power consumption: ≤ 55kw 4 Speed:. 300-660rpm 5 Flow:. ≤ 800Nm3 / h 6 Suction pressure:. 0-0.5Mpa 7 exhaust pressure:. ≤ 10Mpa 8 Compression Level: 1-4 Winds oil-free compressors Product Features: