Aminothioesters Extreme Pressure Lubrication Ep Additives In Grease
Ultra-Stable EP Protection for Gear Oils & Grease Under Extreme Shock Loads
This premium ep additives in grease and extreme pressure additives in gear oils is a brown-red transparent liquid, a multi-effect additive with outstanding anti-wear extreme pressure performance and good anti-oxidation effect. It offers excellent compatibility with other additives and can be used in turbine oil, hydraulic oil, gear oil, internal combustion engine oil, and grease applications to enhance anti-oxidation and anti-wear properties.
Product Introduction
This Aminothioesters EP Additive delivers revolutionary extreme pressure protection through thermally stable N-S-O chemistry. Engineered for >200°C applications, its molecular design forms self-regenerating tribofilms that prevent welding under impact loads exceeding 6GPa. As premium extreme pressure additives in gear oils and ep additives in grease, it resists water washout in the harshest environments.
- Impact Load Armor™
Sustains 100,000 psi (690 MPa) shock loads without welding (ASTM D2596 modified).
- Thermal Stability
Maintains EP properties at 220°C (Four-Ball Test @ 220°C).
- Water Resistance
<3% washout after 10h seawater immersion (ASTM D1264).
- Micro-Pitting Prevention
90% reduction in FAG FE8 micropitting tests.
- Corrosion Barrier
1,000h salt spray protection (ASTM B117).
Application
Target Industries:
Steel mill continuous casting rollers
Mining dragline excavators
Wind turbine main bearings
High-speed rail traction motors
Tunnel boring machinery
Core Applications:
Lithium-complex EP greases (NLGI 2/3)
High-temperature bearing greases (ASTM D3336)
Centralized grease systems (ISO 6743-9 L-XCCHB2)
Sealed-for-life bearings (SKF LGLT2)
Water-resistant greases (DIN 51807-K3P)
Recommended Dosage
When this product is used as an antioxidant, the addition amount is 0.1%-1.0%.
When this product is used as an extreme pressure agent, the addition amount is 2.0%-4.0%.
Characteristics
Parameter | Specification | Test Method |
Appearance | Brownish red transparent liquid | Visual |
Sulfur content % | 29-32 | SH/T0303 |
Kinematic Viscosity @100°C | 13.5-15.5 mm²/s | GB/T265 |
Density (20℃) Kg/ m³ | Actual measurement | GB/T1884 |
Flash point (open) ℃ | ≥130 | GB/T3536 |
Packaging & Storage
Packaging: 200L metal drums or 1,000 kg IBC containers.
Storage: Temperature ≤45°C, avoid direct sunlight.
Shelf life: 24 months in sealed containers.
Handling: Use standard PPE; rinse with detergent if skin contact occurs.
Customization Options
Nitrogen content adjustment (2.5–5.0%)
Low-odor variants (olfactometry <500 OU/m³)
Pre-activated with solid lubricants
Halogen-free formulations (<50 ppm Cl/Br)
Why Choose This Extreme Pressure Additive?
“In tunnel boring machines operating at 250 bar cutterhead pressure, Aminothioesters-enabled greases achieved 10,000-hour bearing life with zero welding failures despite 6GPa impact loads and 95% humidity environments. As ep additives in grease, they outperformed all alternatives.”
– Heavy Equipment Engineering, 2025 Case Study
Third-party validated: Reduces micropitting by 92% in wind turbine main bearings at 5MW load (DNV GL FVA 54/7 validation). Our extreme pressure additives in gear oils show similar performance improvements.
Tribological Breakthrough:
Forms nanostructured Fe₃N/FeS tribofilms with 25GPa hardness – 40% harder than traditional EP additives (nanoindentation ISO 14577-1).
Unique Performance Metric:
Maintains EP protection after 1,000h at 200°C – outperforming conventional additives by 5x (modified ASTM D2596 thermal endurance test). This makes it ideal as ep additives in grease and extreme pressure additives in gear oils for high-temperature applications.
Technical Support
Email:jzsrunda@163.com
