• DNR Corporation

EDM Oils

DNR Corporation offers EDM Oil. This is DNR spark SPO-A, a long life EDM oil with following application: this is a high quality, low viscosity dielectric fluid designed to perform flawlessly over a broad range of metal removal rates. The low viscosity of DNR spark SPO-A provides uniform cooling of both electrode and work piece while allowing rapid settling of the metal particles. It works as an insulator but deionises quickly, at applied potentials, to conduct the spark discharge. This is a dielectric fluid for general purpose mould and die work where good flushing, close tolerances and optimum rates of metal removal are important. It widely out-performed the common EDM fluids more than tenfold in oxidation stability characteristics, sludge formation and service life. Data (typical values): viscosity @ 40ºC - 2-3 CST; specific gravity @ 60ºF - 0.77; flash point - 108ºC; aniline - 99.99; odour - nil; colour (saybolt) - +30. Advantages: desirable dielectric properties along with low electrical conductivity; good heat transfer properties for proper quenching of melted metal; low viscosity for uniform cooling and optimal flushing and separation; low volatility reduces excessive topping-up; low level of fuming; no unpleasant odours; and outperforms common EDM fluids more than tenfold in oxidation stability, sludge formation, and service life.