Modern heavy-duty diesel engines operate under extreme conditions, including high thermal load, elevated pressure, and strict environmental regulations. The transition to clean, efficient, and durable heavy machinery depends on lubrication chemistry. As a leading diesel engine exporter and integrated lubrication technology provider, Shandong Longhai Lubrication Technology Development Co., Ltd. works to deliver high-performance engine systems and formulation fluids.
Whether running transportation fleets, heavy mining equipment, or global cargo vessels, engines require chemical agents to control friction, disperse carbon soot, and prevent thermal oxidation. Modern API standards (like CK-4 and CJ-4) have moved from simple friction reduction to complex chemical engineering. Our formulas focus on high-temperature, high-shear (HTHS) viscosity stability, preventing wear under heavy loads.
During operation, modern engines undergo mechanical stress that degrades standard oils. High fuel injection pressures and exhaust gas recirculation (EGR) systems introduce soot particles into the oil, which can cause abrasive wear. Our formulations use dispersant chemistry to suspend soot particles, preventing sludge buildup and maintaining oil flow.
Established in 2009 and headquartered in the industrial hub of Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. is a high-tech enterprise integrating research, development, production, and sales. For over 15 years, we have worked to supply lubricants to the global industrial and heavy-duty transportation fields.
Longhai Technology owns the brand "Century Longhai" and coordinates strategic brand collaborations, such as the British "A Ba" series. Our extensive product portfolio includes diesel engine oil, gasoline engine oil, gear oil, hydraulic transmission oil, anti-wear hydraulic oil, specialized engineering machinery fluid, natural gas engine oil, fully synthetic fluids, automotive urea solutions, antifreeze, and industrial gear lubricants.
To ensure reliability, our brand is backed by product quality liability insurance underwritten by the PICC (People's Insurance Company of China). This guarantees global clients that every batch conforms to international specifications and protects machinery investments under all operating conditions.
Innovation drives our development. Longhai allocates more than 5% of its annual revenue to R&D, collaborating with universities and research institutions to develop new lubrication technologies. Operating from a 131-acre manufacturing complex with a capacity of 200,000 tons per year, we supply lubricants tailored to the requirements of the global market.
Our manufacturing center in Zibo, Shandong, uses automated production lines to ensure precision, reliability, and scaling capacity. Automation minimizes human error, ensures batch-to-batch consistency, and accelerates order completion times.
We maintain additional certifications to meet global standards: ISO Compliance Audit | Precision Laboratory Credentials | National Ecological Standard Certificate
Developing synthetic oil blends that conform to target API, ACEA, and JASO standards.
Supporting trial production batches and scaling to larger quantities to match demand.
Supplying safety data sheets, technical datasheets, and laboratory analysis reports.
Designing container sizes, artwork layouts, and labeling configurations.
Defining client machine parameters, load criteria, and regional climates.
Determining base oil viscosity index and additive package chemistry.
Conducting shear, flashpoint, and oxidation tests on pilot batches.
Blending and packaging products using automated production lines.
Providing technical assistance, field monitoring, and laboratory feedback.
Managing procurement for large machinery systems and industrial distributors requires balancing quality assurance, supply chain consistency, and total cost of ownership. Shandong Longhai addresses these operational challenges through:
Purchasing directly from our Zibo manufacturing center reduces intermediary margins, providing cost efficiency. Direct communication with our factory technicians speeds up custom formulation, packaging adjustments, and certification updates.
We supply required regulatory documentation for import and distribution, including certificate of analysis (COA) documents, safety data sheets (SDS) complying with GHS standards, and compliance records for ISO environmental, safety, and quality audits.
With a 200,000-ton annual capacity, we are positioned to maintain continuous product supply, helping global partners manage inventory risks and mitigate shipping challenges.
Longhai
