ROYCO 770 is a super clean synthetic hydraulic fluid developed to meet the
severe duty demands of today's military and industrial equipment. Rust
inhibitors are utilized to provide protection to ferrous components and
modern additive technology is employed for oxidative stability, corrosion
inhibition, and antiwear protection. ROYCO 770 is designated as a P-15
protectant according to the Mil-STD-2073-1D standard.
ROYCO 770 is intended for use in severe duty applications requiring
extremes in environment and/or extended time periods between operation
such as tank and howitzer recoil mechanisms and hydraulic systems, snow
removal, earth moving and heavy duty construction equipment, and
industrial robotic hydraulic systems. ROYCO 770 is especially recommended
in applications where rust protection together with a high flash point can
afford an extra margin of safety and fire protection. ROYCO 46 is also a suitable
lubricant for precision gearboxes where a low starting torque in cold
temperature is required and in applications where it is necessary to pump
semi-fluid grease through extremely small orifices.
MIL-PRF-46170 Type I
Royco 770 Properties:
Kinematic Viscosity @ 100°C, cSt
Kinematic Viscosity@ 40°C, cSt
Kinematic Viscosity@ -40°C, cSt
Kinematic Viscosity@ -54°C, cSt
Flash Point, °C
Fire Point, °C
Pour Point, °C
Total Acid No., mg KOH/g
Specific Gravity, (15.6°C)
Gravimetric Filtration, mg
Trace Sediment, ml
Water Content, % wt
Water Sensitivity, % trans.
Evaporation, % loss 300°F/22 hrs.
Synthetic Rubber Swell, “L”, 158°F/168 hrs.
4-Ball Wear, mm2 scar
10 Kg/1200 RPM/1 hr/75°C
40 Kg/1200 RPM/1 hr/75°C
Solid Particle Contamination, auto counter, particles/litre
• Excellent rust and corrosion inhibition
• Outstanding antiwear properties to extend life
ROYCO 770 should not be used in aviation hydraulic systems without prior
evaluation and should not be used in systems in contact with natural
rubbers. Intermixing ROYCO 770 with petroleum base stocks will reduce fire
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information, pricing and availability.
Royco and all
associated logo's are registered trademarks of Anderol Inc.
Distributed by QCLubricants, Inc. All Rights Reserved.