Explore our elite range of heavy-duty industrial lubricants developed under rigorous international standards for modern heavy machinery.
In the highly demanding landscape of global industrial manufacturing and logistical operations, the role of mechanical lubrication has transitioned from simple friction reduction to a critical science of asset preservation and thermal management. Shandong Longhai Lubrication Technology Development Co., Ltd., established in 2009 in the industrial hub of Zibo, Shandong, stands at the absolute vanguard of this evolution.
For more than 15 years, our research facilities have focused on addressing the multi-layered mechanical challenges of modern gear assemblies. Heavy-duty gearboxes operate under increasingly confined spaces, dealing with higher torques, shock loads, and extreme operating temperatures. Selecting the correct gear oil supplier is no longer a generic procurement decision; it is a critical strategy to avoid costly downtime, reduce the Total Cost of Ownership (TCO), and achieve ultimate operational sustainability.
Our flagship brands, including "Century Longhai" and our strategic international collaboration brand, the British "A Ba" series, are built on premium base oils combined with proprietary molecular additive systems. These formulations guarantee advanced shear stability, high viscosity indices, and robust resistance to micro-pitting, oxidative breakdown, and sludge accumulation.
Driving industrial efficiency across boundaries through scaled manufacturing and continuous research investment.
The global industrial gear lubricant market is undergoing a major technological transformation, driven by three primary trends:
Longhai Technology monitors these industry demands closely. Our research lab partners with academic institutions to refine oil shear stability under cyclic stresses, helping clients future-proof their heavy machinery.
Deploying intelligent manufacturing and automated blending processes to ensure batch-to-batch consistency and competitive delivery times.
Industrial procurement departments globally face a major challenge: finding a supplier that can guarantee consistent quality across every batch. At Shandong Longhai, we solve this supply chain risk through our state-of-the-art 131-acre manufacturing center, designed to meet the strict standards of Factory 4.0.
Our modern filling systems operate using precise volumetric metering. This ensures a strict filling accuracy margin of 1‰ to 2‰. By implementing automated volume control, we have boosted overall filling speeds by 20% to 35%, ensuring we meet large commercial orders quickly without sacrificing accuracy.
Our production floor features closed-loop automated blending systems. Sensors monitor real-time temperature, pressure, viscosity, and additive distribution during the blending phase. This digital control eliminates manual error, guaranteeing that every drum of API or ISO compliant lubricant leaving our dock matches the exact specifications of the initial lab-approved sample.
Customized formulation engineering, dynamic packaging, and turn-key brand development for global distributors.
Fully synthetic and semi-synthetic lubricant formulations tailored to specific vehicle/equipment requirements, climatic conditions, or regional market positioning to meet international standards such as API/ACEA.
We support small-scale trial batches through to high-volume commercial production runs. Our flexible lines cover engine oils, industrial gear oils, transmission fluids, and special application lubricants with customized filling specs.
Certified under ISO 9001, ISO 14001, and OHSAS 18001 standards. We provide certified lab documentation and third-party inspection reports to ensure total chemical safety compliance for customs entry worldwide.
We provide full-service dynamic packaging support, label graphic design, container configuration selections, and localized technical documentation to help you build a strong, credible brand image.
Collaborative assessment of mechanical targets, operating climates, viscosity curves, and target market guidelines.
Developing optimized additive blends and testing base oil compatibility in our precision laboratories.
Rigorous trial testing including shear stability, extreme pressure load index, and anti-foaming behavior analyses.
High-efficiency automated blending and high-speed filling, packed securely for international transit.
Ongoing batch tracking, fluid analysis support, certification renewals, and secondary generation formulation development.
Trust in industrial lubrication is built on verification. Longhai Technology maintains a strict quality control workflow that ensures complete compliance with global specifications.
Our facility has passed the ISO-9001-2015 Quality Management System, ISO-14001 Environmental Management System, and ISO-18001 Occupational Health and Safety Management System. In addition, our automated transmission fluid has achieved official Mercedes-Benz Certification, reflecting our commitment to meeting strict automotive OEM standards.
For added security and reliability, the entire "Century Longhai" product family is backed by quality liability insurance issued by **PICC (People's Insurance Company of China)**. This provides our global customers and local distributors with complete confidence in the quality of our formulations.
We combine foreign production methodologies with advanced raw testing technologies. This ensures our lubricants remain stable under extreme pressure, reducing equipment wear and extending drain intervals.









How our gear oils and industrial fluids perform across critical, high-load operational scenarios globally.



Mining environments subject gear assemblies to heavy dust, vibration, and high shocks. Under these conditions, standard lubricants can quickly lose viscosity. Our Heavy-Duty L-CKD gear oil contains shear-stable polymers and anti-wear additives that protect gear teeth from surface damage under shock loads, keeping heavy excavators and draglines running smoothly.
Wind turbines operate in remote areas and face wide temperature swings. This requires high-viscosity synthetic gear oils with low pour points to prevent startup wear in freezing conditions, while resisting oxidation during hot summer days. Longhai's PAO-based synthetic lubricants extend maintenance intervals, reducing high costs associated with remote wind farm servicing.
Heavy-duty trucking fleets require gear oils that maintain viscosity over long highway distances while helping improve fuel economy. Our specialized transmission fluids are formulated to reduce drag and resist thermal oxidation, protecting gear teeth and bearings over extended run times.
Rolling mill gearboxes operate under intense heat and risk water contamination. Standard oils can break down and emulsify under these conditions. Our industrial gear oils are formulated with excellent demulsibility, allowing quick separation from water to maintain a protective lubricating film on heavily loaded gears.
Inside Shandong Longhai's advanced production facilities, testing laboratories, and logistics center.



Get technical answers to common queries regarding gear oil performance, specifications, and supply chain management.



Our business philosophy centers on the principle: "dare to explore, innovate continuously, survive by quality, and promote development by efficiency." We work closely with global industrial partners, providing customized formulations, fluid analysis, and technical support to optimize equipment performance.
Whether you require bulk industrial gear oils, customized OEM packaging, or technical advice on fluid selection, our engineers are here to assist. Contact Shandong Longhai to learn more about our high-performance lubricants.








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