Explore our flagship industrial oils designed to exceed OEM performance specifications.
Years of Tribology Expertise
Tons Annual Blending Capacity
Cities Across Global Markets
Automated Blending Precision
Understanding the molecular science behind boundary lubrication and wear mitigation in high-pressure hydraulic pumps.
Modern hydraulic systems operate under increasingly severe mechanical stresses, featuring higher pressures, tighter clearances, and faster cycle times. Under boundary lubrication conditions, when fluid films thin out, contact between metal asperities is inevitable. To prevent catastrophic wear and adhesive scuffing, our hydraulic oils utilize state-of-the-art additive chemistry.
We deploy optimized combinations of Zinc Dialkyldithiophosphate (ZDDP) and ashless anti-wear technologies. Under localized friction-induced heat, these molecules react with metal surfaces to form a protective tribofilm. This microscopic layer acts as a sacrificial barrier, absorbing shear stress and preventing direct metal-to-metal contact.
Furthermore, our formulations focus on high thermal-oxidative stability. When exposed to heat and oxygen, standard base oils polymerize into sludge and varnishes, clogging dynamic orifices and valves. Our Group II and Group III hydro-cracked base stocks are fortified with advanced phenolic and aminic antioxidants, extending oil drain intervals by up to 250% compared to conventional oils.
| Technical Parameters | ISO VG 32 | ISO VG 46 | ISO VG 68 |
|---|---|---|---|
| Kinematic Viscosity @ 40°C (cSt) | 28.8 - 35.2 | 41.4 - 50.6 | 61.2 - 74.8 |
| Viscosity Index (ASTM D2270) | 102 | 105 | 105 |
| Flash Point (PMCC, °C) | 210 | 220 | 235 |
| Pour Point (°C) | -30 | -27 | -24 |
| FZG Damage Stage (Fail Stage) | Pass 12 | Pass 12 | Pass 12 |
Optimized formulations tailored for extreme climates, subterranean extraction, and high-precision manufacturing.
For forestry, mining, and civil construction in cold climates (e.g., Northern Europe, Canada, high-altitude regions), we supply high viscosity index (HV/HVI) lubricants. Standard mineral lubricants thicken under sub-zero starts, causing pump cavitation and cold-start wear. Our oils remain fluid down to -35°C while maintaining viscosity at high operating loads.
In high-risk mining installations, fluid integrity is critical. We formulate fire-resistant anti-wear fluids (HFDU/HFD-R classes) that resist ignition when sprayed under high pressures near electrical arcs or high-temperature furnaces. These systems rely on synthetic esters and ashless chemistry to satisfy both safety standards and environmental regulations.
Modern injection molding systems require steady pressures to maintain micron-level tolerances. Hydraulic fluid oxidation can lead to sticky valves and micro-stuttering. Our premium anti-wear hydraulic oil offers superior shear stability, preventing viscosity breakdown under intense pressures to ensure consistent, highly repeatable cycle times.
Established in 2009 and headquartered in Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. is a high-tech enterprise integrating research, development, precision blending, and global logistics. Over 15 years of continuous industrial growth, we have developed a complete upstream-to-downstream lubrication supply chain, enabling us to deliver premium solutions across global industrial sectors.
Our strategic operations center on our own domestic brand, "Century Longhai", along with our premium international joint brand, the British "A Ba" series. Our comprehensive product portfolio includes diesel engine oil, gasoline engine oil, gear oil, hydraulic transmission oil, anti-wear hydraulic oil, motorcycle special oil, and automatic transmission fluid (ATF). To guarantee maximum customer confidence and reliable quality, all of our products are insured globally by PICC China People's Insurance Company.
Combining raw material integration, smart blending processes, and deep harbor logistics to secure your oil supply.
Spanning 131 acres, our advanced production base is built for high-capacity, high-precision demands. Equipped with automatic metering systems, our filling lines deliver an accuracy margin of 1‰-2‰, accelerating production output by 20% to 35% compared to manual installations. This speed directly reduces lead times for bulk international purchase orders.
Our location in Zibo, Shandong, provides immediate access to major petrochemical refinery bases and bulk shipping corridors. This proximity enables us to source raw base oils and premium additives reliably, minimizing risks related to material shortages and volatile transit costs. Standard container shipments route directly through Qingdao Port, ensuring secure shipping lanes worldwide.
With an annual blending capacity of 200,000 tons, our factory easily scales up to meet sudden increases in global demand. This capacity lets us maintain stable safety stocks of critical base oils, protecting international supply agreements against raw material shortages and sudden logistics disruptions.
Rigorous quality protocols audited under ISO standards and major OEM specifications.
Quality stability is the foundation of Shandong Longhai's business philosophy. We maintain certifications for ISO 9001:2015 (Quality Management System), ISO 14001:2015 (Environmental Management System), and ISO 45001:2018 (Occupational Health & Safety Management System). Our automatic transmission lubricants hold formal Mercedes-Benz approvals, demonstrating our technical compliance with demanding OEM requirements.
Every raw material batch undergoes strict laboratory verification, including ICP-OES elemental analysis and FTIR chemical mapping, to verify additive concentrations. We also run routine physical tests checking pour points, kinematic viscosities, copper strip corrosion (ASTM D130), and foaming tendencies (ASTM D892) to verify performance limits.
Our precision laboratories work closely with domestic technical universities and research institutes to continually refine and optimize our anti-wear formulations, ensuring they exceed next-generation industrial requirements.
From custom anti-wear formulas to high-volume bulk packaging, we support every step of your private label expansion.
We develop semi-synthetic, fully synthetic, and mineral formulations to meet specific viscosity targets, extreme temperatures, and strict regional environmental regulations.
Select from 1L, 4L, and 18L retail pails up to 200L metal drums and flexible IBC tanks. Our production line accommodates customizable label branding and container designs.
We formulate to conform with DIN 51524 (Part I, II, III), Eaton Vickers, Denison HF-0, HF-1, HF-2, and Cincinnati Machine P-68, P-69, and P-70 specifications.
Our team manages export documentation, customs clearance, safety data sheets (SDS), GHS labels, and multimodal container shipping for a streamlined supply chain.
Define viscosity grades, operating parameters, and regional compliance needs.
Adjust base oils and additive balances in our laboratory to optimize performance.
Verify wear resistance, water separation, and thermal limits under physical stresses.
Execute automated raw material blending, packaging, and printing.
Coordinate customs documentation and arrange sea freight shipments.
Preparing for next-generation eco-friendly hydraulic systems and predictive fluid monitoring.
As global regulations tighten on environmental safety, industrial operators are transitioning to biodegradable fluids. We are investing in unsaturated and saturated synthetic ester bases (HEES) that offer excellent anti-wear performance and high biodegradeability. These formulations protect machinery operating in protected environmental zones, marine harbors, and open forestry areas.
While ZDDP additives are highly effective wear preventatives, they can degrade yellow metals (bronze, brass) in high-temperature piston pumps and can damage filtration systems. Our technical roadmap focuses on developing advanced ashless (zinc-free) anti-wear additives. These non-heavy-metal mixtures extend pump life, prevent filter clogging, and reduce environmental impact upon disposal.
Industrial machinery increasingly relies on real-time sensors to track oil health. We optimize our base fluid chemistry to prevent micro-foaming, electrostatic discharge, and varnish buildup, ensuring high compatibility with electronic condition sensors. This stability prevents false sensor readings and supports accurate predictive maintenance schedules.
Next-generation hydraulic systems demand pressures exceeding 400 bar, which accelerates mechanical shear. We are developing proprietary polymer shear stabilizers that maintain stable viscosity under intense mechanical stresses, preserving thin-film protective barriers in critical zones.
Expert answers to common engineering, blending, and procurement inquiries.
A full range of specialized automotive, industrial, and heavy-duty oils for diverse global operations.
Longhai