MULTIS HYDRO MJ530 Series are specially designed for the machine tools which make deep holes or treat while cooling the cutting edge. With low price and supreme quality, Multis Hydro MJ530 Series adopted 'Silicon Carbide' vs 'Silicon Carbide' as standard seal materials so that these can run very long life even there are lots of slurry in the cutting oils. And the double labyrinth drain box installed inside, will protect the bearing even there is a leakage of the cutting oils. We also have 90 degree circuited products. As the spring and the cutting oils are segregated, it can enable the stable operation by preventing the swirling resistance of cutting oil and pressure drop.