Heavy-Metal-Free Synthetic Oil Provides Extreme Protection

Pyroshield Syn Hvy & XHvy Open Gear Lubricants are heavy-duty synthetic fluids designed to provide outstanding protection for high-load, heavy-shock applications, such as large shrouded open gears used in the mining, mineral processing and cement industries. Pyroshield Syn Open Gear Lubricants are non-asphaltic and environmentally friendly, containing no heavy metals. Each lubricant features a synergistic mix of Almasol®, LE's exclusive wear-reducing additive, and a unique combination of extreme pressure additives.

LE Offers Pyroshield's Advanced Technology as Solution for Large Shrouded Open Gears

Lubrication Engineers developed Pyroshield Syn Hvy and XHvy Open Gear Lubricants to meet the specific requirements for the lubrication of large shrouded open gears, and to address the main problems associated with traditional lubricants for these gears.

Lubrication Engineers operates under an ISO 9001 Certified Quality System.
Unit of Measure

Benefits and Recommendations

Available Container Size

N/A Drum

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GHS Statement

N/A For commercial and professional use only

Typical Applications

N/A Industries where large open gears are in service, including:
  • Coal-fired power generation
  • Mining (iron, copper and other minerals)
  • Sugar beet processing
  • Cement
  • Ceramics
  • Paint
  • Glass and sand

Beneficial Qualities

  • Increases uptime
  • Lengthens gear life
  • Lowers lubricant consumption
  • Reduces maintenance

Superior Gear Protection
  • Exhibits exceptionally high film strength, helpful for withstanding high-load, heavy-shock applications
  • Carries Timken OK load of 95-lb
  • Achieves 14th stage pass in FZG gear test
  • Creates a film on metal surfaces, preventing destructive metal-to-metal contact
  • Reduces gear temperatures by 5-15%
  • Clings tenaciously to metal surfaces, without accumulating
Environmentally Friendly
  • Contains no lead or heavy metals
  • Can be disposed of like any other nonhazardous petroleum oil
Easy To Use
  • Appears translucent in use, facilitating visual inspection of open gears
  • Does not require equipment to be shut down during conversion from old lubricant to new
  • Can be applied manually or through automatic spray systems
  • Eliminates cleanup-related downtime
Cost Effective
  • Performs better and lasts longer than competitive lubricants
  • Ensures trouble-free operation, fewer failures and less downtime
  • Reduces maintenance costs for repairs, parts and labor
  • Reduces lubricant consumption by up to 80%
  • Reduces energy consumption

Performance Requirements Met or Exceeded

  • AGMA 9005-E02
  • Falk Corporation
  • FFE Minerals
  • Foster Wheeler
  • Fuller Traylor
  • Metso
  • Walchandnagar Industries Ltd, India

Proprietary Additive

N/A LE's proprietary additives are used exclusively in LE lubricants. Pyroshield Syn Hvy & XHvy Open Gear Lubricants contain Almasol.

Almasol® solid wear-reducing additive is able to withstand extremely heavy loads, chemical attack and temperatures up to 1,900ºF (1,038ºC). It is attracted to metal surfaces, forming a microscopic layer but not building on itself or affecting clearances. Almasol minimizes metal-to-metal contact and the resulting friction, heat and wear.

Asset Reliability Solutions

N/A Reliability Solution Products

Customer Testimonials

N/A 9000 Holcim Inc
9000 Kavco Industries Inc

Physical Characteristics - Typical


N/A Purple

Performance Test Results

FZG Fail Stage

N/A 14+

Rust Test 4 hrs @ 60ºC (140ºF), DI H2O, ASTM D665A

N/A Pass

Rust Test 4 hrs @ 60ºC (140ºF), Sea H2O, ASTM D665B

N/A Pass

Copper Corrosion 3 hrs @ 100ºC (212ºF), ASTM D130

N/A 1b


N/A No

SRV-EP @ 50ºC (122ºF), 1 mm stroke, 50 Hz frequency, ball on disc, max load w/o seizure, N, ASTM D5706

N/A 1,200

Pour Point °C (°F), ASTM D97

N/A 12 (54)

Four-Ball EP Weld Point kgf, ASTM D2783

N/A 400

Four-Ball EP Load Wear Index kgf, ASTM D2783

N/A 95

Gravity, ºAPI ASTM D1298

N/A 23.3

Flash Point °C (°F), (COC), ASTM D92

N/A 196 (385)

Viscosity @ 100ºC (212ºF), cSt, ASTM D445

N/A 880.0

Viscosity @ 40ºC (104ºF), cSt, ASTM D445

N/A 28,980

Timken OK Load lbs, ASTM D2782

N/A 95

Viscosity @ 40°C (104°F), cSt, min., ASTM D445

N/A -

Viscosity @ 99°C (210°F), SUS, calculated

N/A 4,104

Viscosity Index min., ASTM D2270

N/A 190

Pyroshield Solution

Wear / Downtime

N/A Some lubricants commonly used for open gear systems are identified only as "cushioning compounds," thus providing poor lubrication, which could result in excessive wear, frequent downtime for repairs, malfunctioning and high operating temperatures.

Pyroshield Solution
Pyroshield Open Gear Lubricants contain a synergistic mix of Almasol®, LE's exclusive wear-reducing additive, and a unique combination of extreme pressure additives. They exhibit exceptionally high film strength that helps them to withstand heavy loads and cushion shock loading in applications where commercial grade lubricants would fail. They also prevent the metal-to-metal contact that can lead to high operating temperatures and destructive wear.

Run-off / Housekeeping / Consumption / Cost

N/A Because many lubricants for open gear systems are not sufficiently tacky, they have to be applied in excessive amounts to provide a thick coating. It is not uncommon for the amount of lubricant applied to far exceed the amount recommended by the American Gear Manufacturers Association. In fact, some operators routinely use two to three times more than the recommended amount. Much of these lubricants will then run off, requiring extensive cleanup and waste disposal. Because of product run-off and the need for a thick layer, many traditional lubricants have to be purchased, used and disposed of in excessive amounts.

Pyroshield Solution
Pyroshield Syn Open Gear Lubricants are extremely tacky. LE's proprietary formulation allows the Pyroshield to cling tenaciously to metal surfaces, without build-up. The use of Pyroshield Syn Open Gear Lubricants has been shown to reduce lubricant consumption by up to 80 percent.

Build-Up / Damage

N/A Some traditional lubricants are tacky enough to adhere to the metal and not run off, but they cause another problem - they build up in the roots of the gear teeth, which can result in bearing stress and damage, as well as possible damage to foundations. In addition to possible damage, the removal of build-up can be messy and time-consuming.

Pyroshield Solution
Unlike these traditional lubricants that experience accumulation requiring periodic removal, LE's Pyroshield Syn Hvy and XHvy Open Gear Lubricants are fluid and will not accumulate. Cleanup is not required, and the use of Pyroshield Lubricants eliminates the possibility of expensive gear damage from unchecked accumulations.

Pyroshield Syn Open Gear Lubricants provide the same outstanding wear protection and reduced consumption provided by LE's Pyroshield 5182, 5180 and 5100 Open Gear Grease, but they have the added ability to flow freely in use. This eliminates the tendency to accumulate on shroud and pinion areas.