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| Quantity: | |
|---|---|
Suggestion Dosage
Performance Level | Dosage (%(w/w)) |
L- CKE | 1.5 |
L-CKE/P | 2.0 |
Additive dose
Item | Specification | Test Method |
Appearance | Light yellow transparent liquid | Visual |
Kinematic Viscosity(100℃), mm²/s | Report | GB/T265 |
Phosphorus, %(w/w) | >1.50 | SH/T0296 |
Sulfur, %(w/w) | >10.00 | SH/T0303 |
Flash Point(COC, ℃) | ＞90 | GB/T3536 |
ZT77211 enables lubricants to withstand the combined challenges of high sliding velocities (>15 m/s), boundary lubrication regimes, and localized flash temperatures exceeding 400°C at bronze-steel interfaces. The compound ensures smooth power transmission efficiency while extending oil drain intervals beyond 10,000 operating hours in continuous industrial service.
Bronze-Specific EP Technology: Sulfur-phosphorus compounds with controlled reactivity prevent chemical polishing of worm wheel surfaces.
Thermal Durability: Maintains ISO VG grade within ±5% after 1,000 hours at 120°C in thermal stability testing.
Copper Alloy Preservation: Proprietary triazole derivatives form protective layers on bronze alloys, reducing adhesive wear by 80%.
Foam Performance: Passes ASTM D892 foam sequence I-III with <50ml foam collapse time under 10 seconds.
Elastomer Compatibility: Maintains NBR seal hardness within ±5 points after 1,000-hour immersion testing.
Oxidative Resistance: Multi-functional amine/phenol antioxidants double RPVOT values versus conventional packages.
Heavy Industrial Gearboxes: Critical for cement kiln drives, steel rolling mill screw-downs, and mining hoist systems.
Automated Material Handling: Elevator gear motors, pallet conveyor drives, and automated warehouse crane slewing rings.
Wind Energy Systems: Yaw drive lubrication in offshore turbines and pitch control gearboxes.
Marine Applications: Azimuth thruster gearboxes and deck machinery operating in saline environments.
ZT77211 solves the bronze-on-steel tribological paradox through molecular-level surface modification that reduces worm gear operating temperatures by 15-20°C, translating directly to 5% energy savings. Its proprietary friction modifier system achieves a 0.06 coefficient of friction in block-on-ring testing - 40% lower than standard EP additives. Rigorous FZG scuffing tests demonstrate A/16.6/90 performance at 150°C, exceeding AGMA 9005-E02 requirements. For gearbox OEMs seeking to eliminate premature worm wheel replacement, ZT77211 delivers field-proven durability with comprehensive certifications including DIN 51517-3 CLP, Siemens TLV 901304, and Flender specification 811.
