Feature:1. Core parts are manufactured with accurancy, the performance is more stable, and the structure is more reasonable, the piston ring is made of imported materials from Japan, and the life span is 3-4 times longer than ordinary products.2. All stainless steel cooling tube is no rust with good heat dissipation. Valve disc is made of stainless steel imported from Sweden, mechanical performance is 10 times better than ordinary material.3. The oil-free shockproof pressure gauge at the outlet has accurate pressure value and more reliable quality; the shell is sprayed with plastic on the surface, which does not drop or fade, which is better than ordinary painters.4. Pump is equipped with a high-pressure rubber hose, which is suitable for multi-purpose use. The super-pressure double-cylinder double-stage compression used has the characteristics of large displacement and fast air expansion. It can be used not only for diving fire cylinders, but also for car, trucks, and trucks,etc. One machine has multiple uses and a wide range of applications.5. Such air pump is also equipped with universal quick connection and charging connectors. In addition to inflatable bottles, it can also be used for car, motorcycles, electric car and other vehicles. It is suitable for firefighting, diving, leaking detection, pressure tight test, automotive and other applications.Specification:Item Type: Air pump: Yong HengCompressed Medium: AirWorking Pressure: 30Mpa (300bar, 4500psi)Exhaust Volume: 50L/minPower: 1.8kwCurrent: 10 (A)Drive: UnidirectionalSpeed: 2800r/minCooling Method: Water coolingPressure Control: 30mpa automatic shutdown displayDisplay Battery Model: LR44(Not included)Size:Approx. 175mm / 6.9inApprox. 215mm / 8.5inApprox. 350mm / 13.8inApprox. 360mm / 14.2in.Package List:1 x Electric High Pressure Air Pump 30mpa1 x Accessory Bag1 x Power Cord1 x Water Pump1 x Data Display Screen1 x Female Hose1 x Water Pipe1 x English User Manual