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Schaeffer Hydraulic Fluids & Lubricants

Schaeffer HTC Oils

Schaeffer HTC Oils are premium quality, non-detergent, anti-wear, rust and oxidation inhibited lubricants that are specially formulated for use in those critical high precision industrial and mobile type low pressure and high pressure hydraulic systems, rotary vane, rotary screw, reciprocating, axial and centrifugal type air compressor systems, vacuum pumps and blower applications. HTC Oils are particularly suited for hydraulic applications such as plastic injection molding machines, glass transfer systems, heavy presses, numerically controlled machine tools and mobile equipment where excessive operating temperatures are experienced.

HTC Oils are formulated from the finest high viscosity index, severely solvent refined, severely hydro-finished 100% pure paraffin base stocks available. HTC Supreme products also employ superior quality polyalphaoelephin synthetic base oils to provide even greater protection at extreme temperatures and resistance to oxidation and varnish.

Once varnish deposits are formed they can create a host of problems. Once deposited on the metal surfaces of the system, the sticky nature of these deposits can attract wear particles and contaminants to adhere to the metal surface. This sticky abrasive residue can increase overall friction, especially to servo valves resulting in reduced efficiency and responsiveness. Varnish deposits can also result in sticking servo valves which must be cleaned or replaced, restricted oil flow due to clogged or blocked filters and strainers, and poor heat transfer. All of these factors result in increased maintenance costs, system downtime and lost production.

To combat the formation of varnish deposits a carefully balanced premium anti-wear additive package Varnishield^® is blended into these 100% pure paraffin base oils. Varnishield^® is a patented hydraulic fluid additive technology that is designed to prevent the formation and the build-up of varnish deposits, while providing exceptional anti-wear performance, outstanding thermal and oxidation stability, rust and corrosion protection and rapid water separation. The Varnishield^® additive system provides HTC Oil with a high degree of thermal and oxidative stability thus minimizing the formation of sludge and varnish. If any varnish particles do form, the dispersancy of the Varnishield^® additive will keep these particles suspended and prevent them from depositing on critical internal components. This helps eliminate the replacement of components such as filters and valves and the costs associated with these activities.

These formulations are specially designed to deliver superior performance, extended service intervals, reduced leakage and excellent protection of vital equipment.

The unique formulation of Schaeffer's HTC oils provide:

1. Excellent thermal stability.
2. Excellent resistance to oxidation and thermal degradation.
3. A naturally high viscosity index. This results in a minimum change in viscosity that helps prevent excessive leakage, sluggish operation and lower overall efficiency and other deficiencies attributed to low viscosity index oils over wide operating temperature ranges.
4. Excellent film strength. This results in increased wear protection.
5. Excellent operating temperature reduction. 100% paraffin base oils have better specific heat values, (less heat is absorbed) and better thermal conductivity that conventional base oils. These combined properties help reduce operating temperatures.
6. Superior chemical stability.
7. Low volatility. This results in lower makeup requirements due to evaporation loss and less deposit formation.
8. Low carbon forming tendencies.

The trend among hydraulic equipment system OEMs is to design hydraulic systems with increased power output and pressures, while minimizing the oil reservoir size in order to make the systems more compact. This trend coupled with higher oil flow rates relative to the amount of hydraulic fluid present in the system has resulted in higher operating temperatures, which increases the rate of oxidation and thermal degradation of the lubricant- all resulting in the potential for the formation of varnish and sludge deposits in the system.

To further protect components, the friction modified, hydraulic, turbine and compressor formulas are specially formulated to extend equipment life, while providing for extended drain capability and improved energy efficiency benefits. Proprietary additive chemistry like Micron Moly^® and Penetro^® act together to protect components from damage at start-up, during extreme operational parameters and under severe load conditions. These proprietary soluble additives will not settle out or impede filtration due to their unique chemical properties.

Micron Moly^® is a liquid soluble moly that plates itself to the sliding, rolling and rubbing metal surfaces of the hydraulic and compressor systems. This plating action forms a long lasting solid lubricant film on these rubbing, rolling and sliding surfaces. This moly film will withstand pressures up to 500,000 pounds per square inch. Once plated to the sliding, rolling and rubbing metal surfaces the Micron Moly^® not only produces a smooth finish surface, but also reduces friction between the moving parts. This results in less heat being generated, which in turn not only reduces operating temperatures, but also downtime.

HTC Oil can also be used as a slide and way lube, an airline oil for pneumatic systems, as a circulating oil and in those bearing and gearbox applications, where the use of a non-extreme pressure oil is specified.

HTC Oil meets and exceeds the following specifications and manufacturer's requirements: Denison HF-O, Eaton-Vickers I-286-S and M-2950-S; JCMAS HK specification, Eaton-Char-Lynn, Haldex Barnes, Husky, Linde, Rexnord, Bosch Rexroth, Parker Hannifan, Commercial Shearing HD 2/900, Commercial Intertech, Cincinnati Machine P-54, P-68, P-69, P-70, DIN 51 524 Part 2 ; ISO 6743/4 Type HM, Sauer-Sundstrand, Sauer Danfoss U.S. Steel 126,127 and 136, AFNOR E 48-603, Ingersoll Rand, Joy, Kaeser, Gardner Denver, Sullair, Worthington, LeRoi, Quincy and Atlas Copco compressor specifications.

Schaeffer HTC and HTC Supreme oils are available in food grade formulations as well as zinc and zinc-free formulations.

HYDRAULIC, TORQUE, AND COMPRESSOR FLUID PRODUCT LINE

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Schaeffer Manufacturing Co.    |    102 Barton St.    |    St. Louis, MO 63104    |    Phone: (314) 865-4100    |    Toll Free: (800) 325-9962    |    Fax: (314) 865-4107

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