Finotek's  hydraulic hand pump design makes it much operation reliability and manufacturers hydraulic hand pump as per 7/8"-14UNF-2A, or 3/4"-16UNF threaded port cavity industrial standard.   Finotek cartridge hand pump is cartridge threaded screw in assembly type for hydraulic units, it is very convenient to install the pump and will be able to be replaced directly in the hydraulic manifold blocks. This hand pump is generating the hydraulic pressure by pushing and pulling a steel shaft or handle. The steel parts of the pump is manufactured in high strength carbon steel, the pump frame and beam is made of casting iron by a mold. The cartridge hand pump produced by Finotek is strictly testing before package, the testing method including, the pressure holding (leakage testing), which is keeping the pressure inside the pump and counted the time of pressure drops, longer will be better. All of the pumps should be qualified to our specific testing time, say more than 3-10minutes depends on the different flow rate and client requirements. Technical information: Main Raw Materials:High strength carbon steel or casting Iron  Power:By hydraulic oil  Brand:Finotek or OEM  Max. Operation Pressure:21Mpa Max. Flow Rate:Please see ordering code Connection type:Threaded, cartridge style  Oil Medium Temperature:-30 to +80cel. for NBR O-rings Oil Medium:Mineral oil as per DIN51 524, VDMA 24 568 or rapeseed oil, Viscosity 10 - 400 CST  Recommended Medium Filtration:ISO 4406 Standard, cleanliness class:20/18/15 More information: http://www.finotek.com ; http://www.finotek.com/hydraulic-hand-pump