Engineered to surpass API, ACEA, and global OEM precision requirements under severe operating conditions.
The global heavy-duty machinery landscape is undergoing an unprecedented technological paradigm shift. Driven by rigorous emissions frameworks such as Euro VI, China VI, and EPA Tier 4 regulations, fleet operators and industrial enterprise conglomerates are compelled to maximize mechanical throughput while minimizing carbon boundaries. Heavy-duty lubricants are no longer simple functional fluids; they are highly specialized components essential to engine structural survival.
In emerging infrastructure sectors across Latin America, Southeast Asia, and the Middle East, high-load operational cycles require lubricants that resist thermal degradation under intense environmental friction. Procurement directors face the dual pressure of extending Oil Drain Intervals (ODI) and safeguarding million-dollar capital deployments against boundary layer failures. As a leading manufacturer and exporter, we address these specific challenges by delivering formulations that maintain exceptional structural integrity over extended operational durations.
A deep exploration into molecular stabilization, shear resistance, and additive activation mechanics.
Utilizing high-viscosity index (VI) base oils augmented with ultra-stable polymer rheology modifiers. This prevents permanent viscosity loss under extreme kinematic strain, ensuring robust hydrodynamic film preservation in heavy-duty diesel and industrial gear applications.
Our formulations integrate advanced antioxidants that combat radical chain propagation under extreme cylinder environments, keeping lacquer, sludge, and carbonaceous deposits from fouling piston rings and valve trains.
Advanced surfactant structures surround combustion byproducts like soot, suspending abrasive particles to prevent agglomeration and abrasive wear on camshafts, lifters, and liner surfaces.
Established in 2009 and headquartered in the industrial hub of Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. has developed into a premium high-tech enterprise combining downstream chemical research, intelligent blending, and global trade logistics. With more than 15 years of industry specialization, the corporation operates an expansive industrial ecosystem dedicated to high-tier lubrication engineering.
Longhai manages its proprietary flagship brand "Century Longhai" alongside the strategic international partnership brand, the British "A Ba" series. Our comprehensive product catalog includes diesel engine oil, gasoline motor fluids, heavy industrial gear systems, high-pressure hydraulic transmission fluids, agricultural specialized lubricants, and green emissions additives such as premium automotive urea and eco-antifreeze. Demonstrating our commitment to operational reliability, all products are comprehensively insured by the People's Insurance Company of China (PICC), giving international buyers peace of mind regarding liability and risk mitigation.
Leveraging German-inspired automated processes to maintain world-class fluid accuracy.
Operating from a state-of-the-art facility spanning 131 acres, our production site is engineered for large-scale output, yielding an annual capacity of 200,000 metric tons. This massive capacity guarantees continuous, uninterrupted supply chains for international contracts and large bulk cargo commitments.
Our filling operations feature advanced volumetric metering systems that execute precise fills with an error margin of just 1‰ to 2‰. This digital precision minimizes chemical waste while accelerating throughput speeds by 20% to 35% compared to standard systems. The resulting efficiency allows us to rapidly fulfill large orders without sacrificing product quality.
Rigorous management controls and factory oversight verified by leading international bodies.
Longhai's manufacturing processes meet strict international quality and environmental management metrics. Our facility has earned ISO 9001:2015 Quality Management certification, ISO 14001:2015 Environmental Management certification, and ISO 45001:2018 Occupational Health and Safety standards.
Our heavy-duty formulas have successfully met stringent OEM test criteria, including formal Mercedes-Benz (MB-Approval) specifications for high-load commercial diesel equipment. These rigorous qualifications confirm that our lubricants deliver dependable engine component protection, even in severe environments.
From base molecular optimization to retail-ready custom packaging, we deliver complete turn-key solutions.
Our chemists modify viscosity indexes, shear stability parameters, and additive treatments to optimize lubricants for regional climates, severe duty cycles, and target market preferences.
Our facility easily scales from initial low-tonnage regional trials to continuous high-volume containerized shipments, adapting seamlessly to changing procurement schedules.
Every custom production run receives comprehensive third-party lab testing and certificate documentation, confirming performance compliance before port departure.
We provide full retail packaging design, detailed regulatory label translation, and global safety data sheet documentation to smoothly launch your private brand identity.
A transparent look inside our multi-stage blending bays, precision analytical facilities, and global shipping warehouses.
Critical engineering answers addressing soot load handling, chemical base stocks, and international supply security.
Our lubricants use high-molecular-weight polymeric ashless dispersants. These additives surround individual carbon soot particles, preventing them from grouping together into larger abrasive masses. This helps control viscosity increase and keeps oil passages clear, preventing wear on high-load components like valve trains and timing systems.
We select base oil groups based on the target performance specifications. Our mineral formulas utilize hydrocracked Group II base oils, which provide excellent stability. For our top-tier heavy-duty diesel engine oils, including CK-4 and fully synthetic formulations, we utilize high-purity Group III synthetic base stocks and Group IV Polyalphaolefins (PAO) to deliver exceptional thermal stability and fluid performance under cold-cranking environments.
TBN indicates a lubricant's capacity to neutralize harmful acidic byproducts created during combustion, especially when using variable-quality fuels. Our premium formulations are engineered with stable alkaline detergents that provide sustained acid neutralization over extended drain intervals, protecting bearing alloys from corrosive wear.
Every production run undergoes strict quality testing in our laboratory. We verify critical properties including kinematic viscosity at 40°C and 100°C, viscosity index, flash point, pour point, Cold Cranking Simulator (CCS) performance, Noack volatility, and ICP-spectrometric additive element distribution, ensuring full compliance with our technical standards before shipment.
We utilize export-grade, high-density polyethylene (HDPE) packaging units treated with fluorinated anti-permeation barriers. Bulk containers are loaded into reinforced shipping structures equipped with secure pallet bracing and moisture absorbers, protecting product purity from ocean air and environmental changes during transport.
Advanced formulations designed to protect critical machinery components and maintain operational efficiency.
Longhai
