Discover our range of premium-grade commercial transmission and industrial gear oils engineered to protect precision components under extreme conditions.
The global transmission and gear oil market is experiencing a profound paradigm shift. Driven by structural advancements in automotive engineering, heavy industrial manufacturing, and renewable power systems, the demand for highly specialized lubricants has reached unprecedented heights. Modern gearboxes operate under increasingly higher rotational velocities, smaller tolerances, and higher thermal stress loads than ever before. Choosing the right formulation is no longer a matter of simple maintenance; it is a critical strategy for asset preservation and operational efficiency.
According to current market intelligence, the global market for industrial gear oils is expected to experience steady compounding growth, fueled by rapid industrialization across Asia-Pacific, Latin America, and Eastern Europe. Heavy-duty transportation sectors, mining complexes, metal forging factories, and wind turbines demand specialized extreme-pressure (EP) agents, superior thermal stability, and low temperature fluid behavior. As a leading manufacturer, we address these complex global requirements through cutting-edge chemical research and advanced blending technologies.
Modern industrial equipment routinely subjects gears and bearings to extreme micro-pitting, oxidative breakdown, and thermal degradation. In heavy applications such as commercial transport and wind power generation, standard mineral gear oils often suffer viscosity loss under shear stress, leading to metal-on-metal friction and eventual equipment downtime.
Our engineered solutions mitigate these vulnerabilities by integrating high VI (Viscosity Index) base oils and advanced sulfur-phosphorus additives. This chemical synergy builds a persistent molecular barrier on metal contact surfaces, reducing friction coefficients and extending mechanical life cycles even under severe shock loads.
Understanding base stock selection and chemical additive technology is key to choosing the correct gear lubricants.
Formulated using premium API Group II, III, and IV (PAO) synthetic base oils. Our synthetic formulations yield exceptionally high viscosity indexes, ensuring fluidity in arctic environments while preserving robust oil film strength at high operating temperatures.
Active sulfur-phosphorus chemistry protects components under boundary lubrication conditions. Additives react with metal asperities to form a sacrificial protective film that prevents welding and micro-pitting under high shock loads.
Engineered to prevent permanent shear degradation. Our lubricants retain their specified SAE grade throughout their service life, maintaining design clearances and system volumetric efficiency.
Shandong Longhai Lubrication Technology Development Co., Ltd., established in 2009 in Zibo, Shandong, is a premier Chinese developer, manufacturer, and global exporter of high-performance lubricants.
Over the past 15 years, we have built a complete industrial lubricant chain, producing premium automotive and industrial fluids. Our product catalog features diesel and gasoline engine oils, specialized transmission and gear oils, hydraulic transmission fluids, compressor lubricants, marine system oils, and eco-friendly automotive urea solutions. These formulations are marketed under our home brand "Century Longhai" alongside the British strategic brand "A Ba" series, with product quality underwritten by PICC (China People's Insurance Company).
Our 131-acre manufacturing center has a annual production capacity of 200,000 tons. Equipped with fully automated blending and metering filling lines, we have improved packaging throughput by 20% to 35% while keeping filling tolerances under 0.2%. Our testing facility allows us to run extensive ASTM analysis on mechanical shear, anti-foaming properties, high-temperature oxidation stability, and copper strip corrosion, ensuring batch consistency.
Our processes adhere strictly to quality management and environmental safety protocols. We hold certifications including ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018. Notably, our automated transmission fluid lines have received official Mercedes-Benz approvals, demonstrating our compliance with strict European OEM requirements.






Shandong Longhai maintains advanced manufacturing systems, strict quality assurance protocols, and verified compliance certificates.

















A look into our joint innovation laboratory, modern warehousing, and high-precision testing infrastructure.









We deliver end-to-end custom blending and toll packaging services for global brands, tailored to your exact market and technical needs.
Our chemists formulate custom lubricants tailored to specific vehicle specifications, local climates, and targeted price points, meeting international certifications including API, ACEA, and relevant ISO standards.

We support small-scale batch testing as well as large-scale contract packaging. Our flexible packaging lines fill container sizes ranging from 1-liter cans for retail to 1,000-liter IBC containers for commercial bulk supply.

We help build your brand with label design, package shape engineering, regulatory compliance consulting, and shipping logistics, helping you go from concept to market-ready product.

Our standardized import and customization procedure ensures clear milestones, consistent quality checks, and prompt shipping.
1. Consultation & Needs Review
We analyze target machinery applications, load requirements, viscosity targets, and regional import regulations.
2. Lab Blending & Chemistry
Our testing lab blends custom samples using designated base stocks and performance additive chemistry.
3. Performance Evaluation
Samples undergo physical testing, including shear stability, wear scar diameter, and extreme pressure testing.
4. Bulk Run & Filling
Upon confirmation, we initiate automated bulk blending, in-line filtration, and container filling.
5. Shipping & Logistics
Our team handles customs documentation and dispatch, offering port-to-port logistics support.Expert answers to common questions about gear lubricants, chemical specifications, and maintenance practices.
Review our comprehensive selection of industrial fluids, engine oils, and specialty transmission lubricants.