Established in 2009 in Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. has evolved over 15 years into a leading high-tech enterprise integrating R&D, advanced production, and comprehensive global sales of high-performance lubricants. As a reputable lubricant manufacturer, Longhai Technology operates a dual-brand strategic portfolio, consisting of our proprietary high-end brand "Century Longhai" and our strategic international brand, the British "A Ba" (Abro style) series. We offer a robust spectrum of lubrication technologies designed to meet the rigorous demands of global industrial gear systems, heavy-duty automotive transmissions, and highly specialized machinery.
Our commitment to excellence is fully guaranteed by PICC (People's Insurance Company of China), providing product quality and liability insurance that underscores the reliability of every drop we produce. In a highly competitive global market, we serve as the premier China Abro Gear Oil supplier, delivering advanced extreme pressure (EP) lubricants, synthetic gear formulations, and standard mineral lubricants to industrial enterprises worldwide. Our focus is to maximize the operating lifespan of mechanical components, reduce downtime, and lower the Total Cost of Ownership (TCO) for modern industrial installations.
Operating from our modern 131-acre manufacturing center, Shandong Longhai integrates precision chemistry with advanced digital automation. We employ fully automated blending systems and state-of-the-art metering filling lines that ensure filling accuracy of 1‰ to 2‰. This high-precision capability not only eliminates volume variance but also increases filling speeds by 20% to 35%, ensuring high-speed standardized production and rapid shipping lead times for container-load exports.
Our infrastructure represents a major breakthrough in localized manufacturing efficiency. By maintaining strategic relationships with global base oil refineries and chemical additive leaders (such as Lubrizol, Infineum, and Afton), our supply chain offers unprecedented cost advantages and structural reliability. In an era of volatile logistics and fluctuating base oil costs, Shandong Longhai maintains deep reserves and flexible processing operations, shielding international buyers from supply chain shocks while guaranteeing continuous, on-specification batch-to-batch consistency.
Industrial gearboxes operate under boundary, mixed, and hydrodynamic lubrication regimes. Under high-load and low-speed conditions, the protective fluid film can thin, leading to metal-to-metal contact, friction, heat generation, and component wear (scuffing and pitting). As a premier Abro gear oil factory, Shandong Longhai solves these problems through precise formulation chemistry:
Designed to combat high load-induced micropitting (FZG Fail Stage > 12), preserving gear surfaces and reducing the frequency of replacement parts.
Resists thermal decomposition at temperatures exceeding 100°C, keeping gears clean and free of lacquer and heavy carbon deposits.
Neutral performance against common synthetic rubber seals, preventing leakage, chemical shrinkage, and seal failure in gearboxes.
Shandong Longhai Lubrication Technology caters to global heavy industries, distributors, and brand owners through our comprehensive OEM/ODM customization engine. We support the development of custom lubricant formulations, customized packaging configurations, and detailed laboratory testing validation. Below is our collaborative product development pipeline:
Demand Analysis
Formula Design
Sample Testing
Batch Blending
Global Delivery
Quality reliability is key in industrial lubricant sourcing. Shandong Longhai Lubrication Technology complies with rigorous international operating structures to guarantee absolute batch-to-batch stability. Our facility operates in strict alignment with ISO 9001:2015 Quality Management, ISO 14001:2015 Environmental Management, and ISO 45001:2018 Occupational Health and Safety systems.
Furthermore, our automatic transmission lubricants have received official Mercedes-Benz OEM approvals, indicating our capability to manufacture lubricants that meet the strict limits of leading engine and vehicle designers worldwide. Whether exporting to North America, the EU, Southeast Asia, or Africa, our products are delivered alongside comprehensive safety and analysis documentation, including Certificate of Analysis (COA) documents, Material Safety Data Sheets (MSDS), and strict compliance with national import laws.
Different industrial systems present unique lubrication challenges. Selecting the right gear oil relies heavily on the operating environment, load profiles, and machinery designs. Here are the primary sectors where our gear oils demonstrate superior performance:
1. Heavy-Duty Steel Processing Plants: Steel rolling mill gear drives endure high temperatures, constant vibrations, and potential water ingress. Our L-CKD heavy-duty gear oils protect gear teeth from fatigue cracking and surface wear, preventing downtime in high-temperature environments.
2. Wind Power Turbines: Wind turbine main gearboxes operate under massive torque fluctuations in remote locations, demanding oils with exceptional shear stability and micropitting resistance. Our synthetic formulations protect gears and bearings over extended drain intervals, minimizing high-altitude maintenance costs.
3. Heavy Mining Machinery: Open-cut and underground mining excavators, crushers, and conveyors run in highly abrasive, dusty environments. The robust additive chemistry in our gear oils acts as a barrier, preventing particulate matter from causing scuffing and abrasive tooth wear.
4. Industrial Refrigeration and Air Compressors: Specialized rotary and reciprocating machinery require high demulsibility and fluid seal integrity. Our tailored air compressor and refrigeration oils prevent oil carryover, preserving thermal efficiency in closed-loop systems.
L-CKC and L-CKD are Chinese industrial standards for gear lubricants, aligning with ISO 12925-1 classifications. L-CKC is formulated for medium-load industrial closed gear systems. L-CKD is designed for heavy-duty industrial closed gearboxes operating under extreme loads, high temperatures, and severe moisture exposure. L-CKD offers superior anti-wear, micropitting resistance, and thermal oxidation stability compared to L-CKC.
Under boundary lubrication conditions, hydrodynamic oil films can fail. Extreme pressure (EP) additives, usually sulfur-phosphorus based, react chemically with metal surfaces under extreme frictional temperatures. This forms a thin chemical barrier film that prevents metal-to-metal welding, scuffing, and severe tooth wear, protecting the gears under heavy and shock loads.
Our 131-acre manufacturing center features fully automated, computer-controlled blending systems. Combined with precision volumetric metering filling lines that achieve an accuracy of 1‰-2‰, we ensure raw material ratios remain identical across batches. Additionally, our dedicated QC laboratory tests every single batch for viscosity, flash point, water content, and additive levels before bottling and shipment.
Yes, for extreme temperature operations. Synthetic gear oils (such as PAO-based fluids) offer high viscosity indices, low pour points, and excellent thermal-oxidative stability. This allows them to operate in temperatures where mineral oils would degrade. The longer service life and reduced oil change frequencies of synthetics ultimately lower maintenance costs and reduce equipment downtime.
Shandong Longhai holds ISO 9001:2015 (Quality), ISO 14001:2015 (Environment), and ISO 45001:2018 (Safety) certifications. Our automatic transmission lubricants have received official Mercedes-Benz approvals. In addition, our entire product range is insured by PICC (People's Insurance Company of China) for quality assurance.
At Shandong Longhai Lubrication Technology Development Co., Ltd., we combine technological innovation, quality manufacturing, and a customer-first philosophy. We are dedicated to providing optimal lubrication solutions to keep your industrial operations running efficiently.
Our products are our character, quality is our life. Partner with a leading exporter to optimize your lubrication programs, reduce downtime, and drive operational efficiency with our certified gear oils.
Headquarters: Zibo City, Shandong Province, China
Global B2B Sales Department: [email protected]
Submit your viscosity targets, load conditions, and packaging requirements. Our engineering team will analyze your specifications and respond with customized options and pricing within 24 hours.
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