SKU: 41077694334

Mobil Rarus™ 829 | ISO VG 150 Synthetic Compressor Oil | Orbit SA

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Description

Mobil Rarus™ 829 | ISO VG 150 Synthetic Compressor Oil | Orbit SAMining Industry Compressor Oils All Mobil Lubricants Mobil Rarus 800 Series Supreme Performance Synthetic Compressor Oil Mobil Rarus 829 Supreme Performance Air Compressor Oil ISO VG 150 Fully Synthetic PAO ISO VG 150 FULLY SYNTHETIC Rotary Screw Rotary Vane Extended Drain Mining & Industrial Fully Synthetic PAO Extended Drain Capability Mobil Rarus 829 is the ISO VG 150 grade in the supreme performance Rarus 800 Series a fully synthetic PAO

Mobil Rarus™ 800 Series — Supreme Performance Synthetic Compressor Oil

Mobil Rarus™ 829

Supreme Performance Air Compressor Oil | ISO VG 150 | Fully Synthetic PAO

ISO VG 150 FULLY SYNTHETIC Rotary Screw Rotary Vane Extended Drain Mining & Industrial

Fully Synthetic PAO — Extended Drain Capability

Mobil Rarus 829 is the ISO VG 150 grade in the supreme performance Rarus 800 Series — a fully synthetic PAO compressor oil delivering significantly longer drain intervals, lower operating temperatures and outstanding deposit control versus mineral-based compressor oils in the same viscosity grade.

ISO VG 150 is the heavier grade in the Rarus 800 Series — specified for rotary screw and rotary vane compressors that require higher viscosity oil, including larger-bore compressors, high-discharge-temperature applications and equipment operating in high-ambient-temperature environments such as Southern African mining sites. The fully synthetic PAO base stocks deliver outstanding thermal and oxidation stability, exceptional deposit control and an extended drain interval capability that mineral ISO 150 compressor oils cannot match.

Product Overview

Mobil Rarus™ 829 is a supreme performance fully synthetic air compressor oil based on polyalphaolefin (PAO) base stocks — engineered for rotary screw and rotary vane compressors requiring ISO VG 150 lubricant. The PAO formulation delivers significantly superior performance to mineral-based compressor oils: lower carbon deposit formation, better water separation, lower operating temperatures, extended drain intervals and outstanding performance over a wide temperature range.

In South African mining and industrial operations where air compressors run continuously in high-ambient-temperature environments, the Rarus 829's extended drain capability and superior deposit control translate directly into lower maintenance costs, fewer unplanned shutdowns and longer compressor service life versus mineral ISO 150 compressor oils.

The companion grade Mobil Rarus 827 (ISO VG 46) covers the most common rotary screw compressor specification. Rarus 829 (ISO VG 150) is the correct choice where the compressor OEM specifies a heavier viscosity grade — always confirm from your OEM service manual before ordering.

Rarus 827 vs Rarus 829 — Grade Selection

Both grades are fully synthetic PAO — select by viscosity grade specified in your compressor OEM manual

Rarus 827 — ISO VG 46

— Most common rotary screw specification

— Standard ambient temperature applications

— KV @ 40°C: 46 cSt · KV @ 100°C: 7.5 cSt

— Pour point: -45°C

Rarus 829 — ISO VG 150 (this product)

— Heavier grade for specific OEM requirements

— High-ambient-temperature or high-discharge-temp applications

— KV @ 40°C: 150 cSt · KV @ 100°C: 15.5 cSt

— Pour point: -39°C

Always confirm the correct grade from your compressor OEM manual before ordering. Contact Orbit Industrial for grade selection assistance.

Performance Benefits

Extended Drain Intervals

PAO base stocks deliver significantly longer drain intervals than mineral-based ISO 150 compressor oils — reducing the frequency and cost of oil changes on large compressor installations in mining and industrial facilities where oil changes require shutdown and are a significant maintenance event.

Outstanding Deposit Control

Excellent resistance to carbon deposit formation on compressor valves, separators and after-coolers — the primary failure mode that causes unplanned shutdowns and costly component replacements in continuous-duty air compressors in mining environments.

Lower Operating Temperatures

The synthetic PAO base stocks run cooler than mineral oils at equivalent viscosity — reducing compressor discharge temperatures, lowering thermal stress on oil and compressor components and extending the effective service life between maintenance interventions.

Excellent Oxidation & Thermal Stability

PAO base stocks are inherently more resistant to oxidation and thermal degradation than mineral base stocks at equivalent viscosity — maintaining oil integrity at the elevated discharge temperatures of heavy-duty ISO 150 compressor applications in high-ambient-temperature mining environments.

Good Water Separation

Excellent water separability removes condensed water from the compressor oil sump — preventing the oil/water emulsification that accelerates corrosion of compressor internals and reduces oil film strength in compressor bearings and rotors.

Rust & Corrosion Protection

Outstanding rust and corrosion protection for compressor internal surfaces — protecting bearings, rotors, coolers and downstream piping from the corrosion accelerated by the combination of moisture and high operating temperatures in continuous-duty mining compressors.

Typical Applications

Rotary Screw Compressors — ISO VG 150

Rotary screw air compressors specifying ISO VG 150 — larger-bore compressors, high-discharge-temperature applications and compressors in high-ambient-temperature environments where the OEM specifies a heavier viscosity grade than the standard ISO VG 46.

Mining Site Compressors

Continuous-duty air compressors on South African mining sites — Northern Cape open pit mines and underground operations — where high ambient temperatures, continuous shift operation and the need for extended drain intervals make synthetic ISO VG 150 compressor oil the correct specification.

Rotary Vane Compressors — ISO VG 150

Rotary vane compressors specifying ISO VG 150 — where the heavier grade provides adequate film thickness for vane tip lubrication in larger-bore and high-temperature vane compressor applications.

Industrial Compressors — Extended Drain

Any rotary screw or vane compressor requiring ISO VG 150 where extended drain intervals are desired — manufacturing plant, process industry, food and beverage and pharmaceutical compressed air systems where synthetic performance is required.

Technical Properties

Property Test Method Value
ISO Viscosity Grade ISO VG 150
Base Stock Fully Synthetic PAO
Kinematic Viscosity @ 40°C ASTM D445 150 mm²/s
Kinematic Viscosity @ 100°C ASTM D445 15.5 mm²/s
Viscosity Index ASTM D2270 143
Pour Point ASTM D97 -39°C
Flash Point (COC) ASTM D92 260°C
Density @ 15.6°C ASTM D4052 0.858 kg/l

Typical properties — not guaranteed specifications. Source: ExxonMobil Product Data Sheet.

Pack Sizes & Procurement

Available Pack Sizes

5 USG (18.9L)

Workshop & small compressor supply

55 USG (208L) Drum

Price on request

Request Quote

Orbit Industrial supplies Mobil Rarus 829 synthetic compressor oil across South Africa. Request a bulk quote →

Orbit Industrial Supplies is an authorised ExxonMobil distributor — supplying genuine Mobil Rarus synthetic compressor oils to mining, manufacturing and industrial operations across South Africa. Mobil Rarus 827 (ISO VG 46) → · Full compressor oil range → · Request a quote →

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 41077694334

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