hpdavv protable air compressor 4500psi - 1.5kw - 110v/60hz - manual stop for paintball scuba tank filling pump hpdavv product features - charging rate: 50l/min; 1.0cfm - filling time: about 10-20 minutes to full filling of 1 liter tank - working pressure: 20-30mpa, 200-300bar, 3000-4500psi - electric power: 1.5kw - voltage: 110v/60hz/1p - cooling type: seprated water colling. - pressure adjustment system with automatic stopping function- water cool auto stop - using placese: for rifle pcp airgun paintball tank filling - dimension: 360x180x380mm/11.8x5.9x12.5 inch - weight: 19kg note 1. please add ilubricating oil before you start using the machine first time, lubricate oil recommend: mobil rarus 827 or 829, iso 100/150, sae 40/50 as the lube oil for this type of compressor 2. when running, if the machine vibrates violently, please add pad or towel under the compressor 3. when the compressor working, the colling system must be working at the same time 4. the machine must not be working without oil, so you must pay attention to the level of oil