Mobil SHC PM 320

Specifications

Brand

Mobil (ExxonMobil)

Range

Mobil SHC

Category

Circulating & slideway oils

Viscosity

ISO VG 320

Manufacturer code

201560501030

Availability

On request

Typical characteristics

Manufacturer's description

Mobil SHC™ PM 320, like all Mobil SHC™ PM Series products, is a superior-performance synthetic lubricant specifically designed for the most demanding industrial paper machine circulating systems, providing outstanding protection of gears and bearings operating under severe conditions. Very low pour points and a naturally high viscosity index ensure good low-temperature start-up while maintaining excellent viscosity control at very high temperatures, and the fluids remain shear-stable even under the heavy mechanical shear found in loaded bearings and gears. Selected synthetic base oils combined with a balanced additive system give the series exceptional thermal/oxidative resistance, allowing the higher steam pressures, temperatures and machine speeds typical of high-output paper machines and calendar rolls. Outstanding hydrolytic stability and filterability assure reliable performance in the presence of water and retain effective filtration even at fine filtration levels, while the fluids readily separate water and retain their colour characteristics under severe conditions — reducing filter and maintenance costs, and providing strong rust and corrosion protection, including in vapour spaces above wetted surfaces. Mobil SHC PM Series is recommended for severe industrial paper machine circulating systems, wide-temperature circulation applications such as calendar rolls, systems requiring quick start-up and rapid bring-online, and circulation systems lubricating gears and bearings. Mobil SHC PM 320 is the ISO VG 320 grade, with a kinematic viscosity of 325 mm²/s at 40 °C and 34.7 mm²/s at 100 °C, a viscosity index of 130 and a pour point of -33 °C; the series is offered in ISO VG 150, 220, 320 and 460 grades.

Applications

• Lubrication of severe industrial paper-machine circulating systems.
• Applications involving circulation systems operating over a wide temperature range, such as calender rolls.
• Systems that must be started up and brought on line quickly.
• Circulation systems lubricating gears and bearings.

Performance & benefits

• Represent a technological advance in paper-machine lubrication, with excellent performance in wear protection, oxidation and chemical stability, rust and corrosion protection, colour stability and filterability.
• Prolong maintenance service intervals and can improve machine performance and increase production capacity, resulting in less required maintenance and longer equipment life.
• Excellent wide-temperature performance gives an extra margin of protection at elevated temperatures and better control of feed rates.
• Exceptional wear protection, outstanding oxidation and thermal stability, and effective water separation improve bearing and gear performance and extend oil life.
• Lower filter-replacement costs, cleaner systems, reduced deposit formation and reduced energy consumption.
• Low traction coefficient gives lower operating temperatures, reduced wear, and keeps oil lines and flow-control mechanisms free of deposits.
• Excellent filterability improves oil flow and cooling performance and lowers filter-replacement costs.