Lubricant Additive Supplier
Adequate lubrication is a crucial element when working with diverse equipment, as it safeguards your assets and enhances productivity. As your reliable supplier of industrial lubricant additives, He Ao offers a comprehensive range of lubricating oil additives tailored for various applications. We collaborate with you to identify your specific requirements based on your unique objectives, developing customized solutions that can effectively support your operations.
At He Ao, we take pride in delivering high-quality solutions that significantly enhance the performance of your lubricants. We focus on optimizing performance by providing additives suitable for industrial applications of any complexity, thereby transforming the way you work. Our aim is to establish long-term partnerships with our clients, supporting their operations both now and in the future.
Lubricant additives are referred to additive products with a single or several characteristics, which are used to improve certain specific properties of lubricating oil. We offer the following industrial lubricant additives, which can be used individually or combined to create a custom lubricant that gets the job done.
The following is an overview and description of some common lubricant additive single agents:
1. Detergents :
Primary Chemistry: Primarily comprised of metal soaps (salts), such as sulfonates, phenates, or salicylates, often formulated as overbased compounds to provide acid-neutralizing reserve (TBN - Total Base Number).
Core Functions:
Cleaning: Chemically neutralize acidic compounds (e.g., sulfuric/nitric acids from combustion blow-by, oxidation byproducts) before they can cause corrosion or form harmful deposits.
Solubilization: Disperse and keep insoluble oxidation products, combustion residues (soot), and other sludge precursors suspended within the oil, preventing them from agglomerating and forming deposits on hot surfaces.
Problems Solved: Prevents the formation of harmful varnish, lacquer, and sludge deposits on critical engine parts (piston rings, grooves, under-crown, valve train). Reduces corrosive wear and loss of efficiency due to sticking rings. Maintains oil cleanliness and operational stability over time.
2. Dispersants:
Primary Chemistry: Non-metallic, ashless polymeric compounds characterized by a polar "head" group and a long hydrocarbon "tail".
Core Functions:
Suspension: The polar head adsorbs onto small insoluble particles (soot, oxidized oil, sludge precursors). The long hydrocarbon tail solubilizes the particle in the oil, creating a steric barrier that prevents particles from clumping together (agglomerating).
Inhibition of Deposition: By keeping particles finely dispersed and colloidally stable, dispersants prevent them from settling out and forming harmful deposits on cooler engine surfaces (e.g., valve covers, oil galleries, filters).
Problems Solved: Prevents sludge formation in oil passages and critical areas, avoiding oil starvation and premature wear. Ensures contaminants remain suspended for removal by the filter. Crucial for engines operating under severe conditions or with high soot loads (e.g., modern turbocharged diesel engines).
3. Antioxidant and Corrosion Inhibitor (ZDDP):
Primary Chemistry: Zinc Dialkyldithiophosphates (ZDDPs). Contain Zinc (Zn), Phosphorus (P), and Sulfur (S).
Core Functions:
Antioxidation: Acts as a radical scavenger, terminating the chain reaction of oil oxidation initiated by heat and reactive oxygen species, slowing the formation of acids and sludge.
Wear Protection: Forms sacrificial anti-wear films (primarily Zinc/iron phosphates and polyphosphates) on metal surfaces under boundary lubrication conditions (high load, low speed). Prevents direct metal-to-metal contact.
Corrosion Inhibition: Protects yellow metals (copper, brass, bronze) from acidic attack and corrosion.
Problems Solved: Significantly extends engine and component life by preventing oxidation-induced oil thickening, varnish, acid formation, and corrosive wear. Protects high-load components like cam lobes, lifters, and valve trains from scuffing and wear. Mitigates bearing corrosion.
4. Extreme Pressure and Antiwear:
Primary Chemistry: Sulfurized hydrocarbons, phosphorus compounds (e.g., phosphate/phosphite esters), chlorinated compounds (less common due to corrosion concerns), and organic compounds containing sulfur and phosphorus (S/P).
Core Functions:
EP/AW Film Formation: Under extreme pressure and friction-induced high temperatures, the additive reacts chemically with the metal surface. It forms low-shear-strength sacrificial films (e.g., iron sulfides, iron phosphates) on asperity peaks.
Friction Reduction: These sacrificial films prevent direct metal-to-metal welding, reducing friction, heat generation, and severe surface damage.
Problems Solved: Prevents catastrophic scuffing, scoring, galling, pitting, and seizure of heavily loaded components operating under boundary or extreme pressure lubrication conditions (e.g., gears, hypoid differentials, synchronizers in manual transmissions).
5. Friction Modifier:
Primary Chemistry: Organic molecules (e.g., fatty acids, esters, amides, organo-molybdenum compounds like MoDTC) with a strong polar head and a long hydrocarbon chain.
Core Functions:
Adsorption: The polar end chemically or physically adsorbs strongly onto metal surfaces.
Hydrocarbon Barrier: The long hydrocarbon chains align perpendicular to the metal surface, creating a slippery, low-friction boundary layer (often monolayers thick).
Friction Reduction: This ordered hydrocarbon layer readily shears under sliding conditions, reducing friction primarily under lower speed/load boundary/mixed lubrication regimes.
Problems Solved: Improves fuel economy by reducing parasitic friction losses within the engine. Helps reduce low-speed chatter, noise, and vibration. Contributes to smoother operation under stop-start conditions and during initial lubrication phases.
6. Antioxidant:
Primary Chemistry: Includes hindered phenolics, aromatic amines (aminic antioxidants), ZDDP, and organo-sulfur compounds. Often used synergistically.
Core Functions:
Oxidation Inhibition: Primarily function as radical scavengers (hindered phenolics/amines) or peroxide decomposers (ZDDP/organo-sulfur). They interrupt the free-radical chain reaction process of hydrocarbon oxidation initiated by heat, oxygen, and catalytic metals.
Problems Solved: Prevents premature thickening and viscosity increase of the oil. Minimizes the formation of acidic oxidation products and corrosive compounds. Reduces sludge, varnish, and lacquer deposition. Extends oil service life and protects engine components from oxidative degradation.
7. Viscosity Index Improver:
Primary Chemistry: Long-chain, high molecular weight polymers (e.g., olefin copolymers (OCP), polymethacrylates (PMA), styrene butadiene (SBC), hydrogenated styrene-isoprene (HSD)).
Core Functions:
Viscosity Modulation: Polymer chains coil tightly in cold oil (minimal thickening). At higher temperatures, polymer chains uncoil and expand significantly, physically blocking oil flow and imparting more thickening effect.
Viscosity-Temperature Stability: This molecular expansion counteracts the natural tendency of oil to thin as it heats up, improving its Viscosity Index (VI).
Problems Solved: Allows the formulation of multi-grade oils (e.g., 5W-30, 15W-40). Ensures adequate viscosity (and film strength) for lubrication at high operating temperatures without causing excessive drag or poor starting/pumping at low temperatures. Crucial for year-round operation and protection across wide temperature ranges.
8. Anti rust Additive:
Primary Chemistry: Polar organic acids (e.g., succinic acid derivatives), salts (e.g., sulfonates, amines), and nonionic surfactants.
Core Functions:
Surface Affinity: Adsorb strongly onto metal surfaces via polar attraction.
Moisture Barrier: Form a protective hydrophobic molecular film that physically blocks water and atmospheric oxygen from contacting the metal surface.
Passivation: Some types promote the formation of protective metal oxides/carbonates.
Problems Solved: Prevents rust formation on ferrous (iron/steel) parts caused by moisture ingress during operation, shutdowns, storage, or transport. Protects critical engine components (bearings, crankshafts, hydraulic pumps) from corrosion pitting and degradation.
9. Pour Point Depressant (PPD):
Primary Chemistry: Polymer-based dispersants/co-crystallizers (e.g., polymethacrylates, alkylated naphthalenes).
Core Functions:
Wax Crystal Modification: Co-crystallize with or adsorb onto wax crystals that naturally form as oil cools below its cloud point. They alter the crystal morphology (shape and size) and inhibit the formation of large interlocking wax networks that solidify the oil.
Problems Solved: Improves low-temperature fluidity by significantly lowering the pour point (the temperature below which the oil becomes semi-solid and won't flow). Ensures oil can still be pumped to critical engine components during cold starts in winter conditions, preventing dry starts and wear.
10. Antifoam:
Primary Chemistry: Silicones (polydimethylsiloxanes) or organic polymers.
Core Functions:
Lower Surface Tension: Reduce the surface tension of the oil-air interface where bubbles form.
Bubble Destabilization: Promote the coalescence (merging) of small air bubbles into larger ones that rise rapidly to the surface and burst.
Film Disruption: Weaken the stability of the bubble's liquid film, causing it to rupture quickly.
Problems Solved: Prevents the formation of stable foam during aggressive churning or agitation in the crankcase, transmission, or gearbox. Prevents air entrainment in hydraulic systems. Ensures efficient oil circulation (prevents pump cavitation), effective oil cooling, and accurate oil level indication. Prevents loss of lubrication due to air bubbles instead of oil reaching surfaces.
Precision Engineered Lubricant Additives: Formulated Specifically for Your Application
Heao leverages deep additive chemistry expertise to engineer bespoke lubricant formulations that precisely match your operational needs. We move beyond standard blends, focusing on optimizing single-agent components for superior outcomes.
Read more：
The Comprehensive Guide to Lubricant Additives
The Impact of Electric Vehicle Development on Lubricant Additives and Engine Oil Formulations
