Bio-Ultimax 1000 is a readily biodegradable biosynthetic formula, which performs like mineral oil-based hydraulic fluids, but are environmentally friendly. With oxidation performance comparable to full synthetics, this is one of the safest hydraulic fluids for the environment, according to the manufacturer, Renewable Lubricants. Ideal for stationary or mobile environments, Bio-Ultimax super high Viscosity Index (VI) fluids are proven in systems up to 10,000 psi and in systems with ultra-fine filtration.

To ensure performance and long life, Renewable Lubricants developed the stringent IsoGreen filtration standard, which meets or exceeds the Rexroth pump guidelines for hydraulic fluids. Non-toxic, zinc-free formulations contain no heavy metals.  In addition to enhancing performance, Bio-Ultimax helps companies achieve their sustainability goals. They are ideal for use in all types of hydraulic systems including trash compactors, waste and recycling collection vehicles, hydraulic pumps, pile driving equipment and more.

With a higher VI than synthetics, Bio-Ultimax 1000 has improved thermal shear stability and increased load capacity. Their extremely low volatility increases the flash and fire safety features, making them safer to use.  A direct replacement for mineral oil-based hydraulic fluids, Bio-Ultimax is ideal for hydraulic systems where low toxicity, biodegradability, and non-bioaccumulation properties are required.

These patented bio-based hydraulic fluids are formulated to perform in high- and low-pressure hydraulic systems that require Anti-Wear (AW), anti-rust, anti-oxidation, anti-foam and demulisibility properties. With patented antioxidants, these biosynthetics provide improved performance in oxidation stability over standard plant/vegetable/HETG and unsaturated HEES type fluids. They are highly inhibited against moisture and rusting in both fresh and sea water, and pass A and B sequences of the ASTM D-665 Turbine Oil Rust Test. Formulated to provide a longer seal life with reduced oil leakage, this environmentally friendly, zinc-free product meets or exceeds high-pressure pump requirements.

Very little wear was encountered in field studies and in accelerated pump tests using bio-based formulations pump stand tests and pressures and temperatures ranging from 2,000 to 3,000 psi and from 150°F to 210°F.