Premium specialized marine, diesel, and industrial oils engineered for severe load and extreme operational parameters.
Founded in 2009 and headquartered in Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. has developed over more than 15 years into a leading high-tech enterprise integrating R&D, advanced blending, and global distribution. Our manufacturing and distribution operations are designed to supply high-performance lubrication products to heavy industries, marine transport, automotive, and logistics fleets worldwide.
Through our proprietary brand "Century Longhai" and strategic cooperation with the British premium "A Ba" series, our formulations target demanding industrial sectors. From high-pressure anti-wear hydraulic fluids to API CK-4 synthetic diesel oils and high-temp turbine lubricants, all products carry insurance through PICC China People's Insurance Company to offer certified operational security.
Global product liability coverage and guaranteed quality.
Customized formulation for extreme operating parameters.
A Comprehensive Technical Whitepaper on Heavy-Duty Tribological Solutions, Safety, and Global Compliance Standards
The global offshore petroleums and marine lubricant sectors face operational challenges driven by extreme pressures, salt-fog corrosion, high mechanical shear, and changing environmental mandates. Modern deep-sea operations require specialized equipment that functions reliably under hundreds of atmospheres of pressure, forcing heavy-duty machinery to operate at thermal limits. Consequently, traditional mineral oils are being replaced by high-performance synthetic lubricants.
These conditions demand lubricants with high shear stability, high viscosity index, and superior resistance to water contamination. In marine propulsion and offshore drilling, lubricants must act as fluid barriers to prevent metal-to-metal contact under boundary lubrication regimes. Digital tribology and predictive maintenance systems are also shifting the market toward real-time wear analysis and sensor-compatible fluids, enabling operators to prolong oil change intervals and prevent machinery failures.
Procurement departments at global industrial enterprises look beyond per-liter purchase costs to evaluate the Total Cost of Ownership (TCO). Fleet operators and plant managers need guarantees regarding:
To address these requirements, Longhai Technology operates fully automatic filling production lines that achieve metering accuracy within 1‰ to 2‰. By increasing filling throughput by 20% to 35%, we help ensure quick delivery timelines for large-volume international contracts.
Industrial machinery requires targeted additive chemistry to prevent premature failure. Our product formulations align with specific industry applications:
A look at our core capabilities, certifications, and support systems designed for global enterprise procurement.
Our facilities operate under ISO-9001-2015 quality, ISO-14001 environmental, and ISO-18001 health management standards, supported by Mercedes-Benz certifications for automatic transmission fluid performance.
We develop fully synthetic and semi-synthetic lubricant formulations tailored to custom viscosity profiles, specific local climates, and operational parameters, with packaging and labeling support.
From initial design to field testing, our engineering teams provide chemical characterization, lab validation, compatibility studies, and on-site oil analysis support.
Longhai's R&D department works to improve oil film thickness and lower coefficient of friction values under high boundary-load conditions. By investing 5% of annual revenue back into laboratory research, we continuously iterate on next-generation base stocks and additive chemistry:
Developing molecular organometallic structures that fill surface roughness on gear teeth, reducing micro-friction and wear under heavy loads.
Utilizing high-molecular-weight polymers that resist mechanical shear, keeping the oil viscosity within target parameters throughout the drain interval.
Designing environmentally acceptable lubricants (EALs) that comply with marine VGP requirements while maintaining standard anti-wear properties.
Every production batch undergoes strict quality control protocols in our testing lab before shipment:
From initial design to field application, we ensure transparent, step-by-step coordination.
Demand Analysis
Formula Development
Sample Testing
Production Delivery
After-Sales Support
Tour our precision laboratories, intelligent production environment, and view our industry quality certificates.
How we tailor formulations, testing, packaging, and logistics for international lubricant distributors.
We engineer fully synthetic and semi-synthetic lubricant formulations tailored to vehicle or equipment requirements, climatic conditions, or target market positioning, meeting international standards such as API and ACEA.
Supporting batches from small-scale trial runs to large-volume commercial shipments, our blending lines cover engine oils, transmission fluids, and industrial lubricants with a variety of filling options.
Certified under ISO 9001 and IATF 16949, we provide third-party lab testing and compliance documentation to support regulatory registration in your destination market.
We offer packaging structure design, label printing, and technical documentation services to help you establish a consistent, premium brand image in your local region.
Technical answers to common questions regarding lubricant specifications, certifications, and procurement logistics.
API CK-4 lubricants offer improved shear stability, oxidation resistance, and aeration control compared to older CJ-4 formulations. This makes CK-4 oils suitable for high-temp engines operating under heavy loads, helping extend drain intervals and protect aftertreatment systems like DPFs.
L-CKC oils are formulated for medium-load industrial gearboxes, while L-CKD oils are designed for heavy-duty systems operating under continuous high loads or shock loading. L-CKD provides stronger extreme-pressure (EP) protection to prevent micropitting and gear teeth scoring.
Our automated blending lines use mass-flow metering systems to ensure precise component addition. Each batch is sampled and tested in our quality control lab for viscosity, water content, and additive distribution against master samples before packaging and sealing.
Yes, our products carry product quality liability insurance underwritten by PICC (China People's Insurance Company), providing operational security and assurance for global distributors and industrial operators.
The key parameters include viscosity stability at target operating temperatures, low carbon residue formation, and water separation capability. High-purity base oils with oxidation inhibitors help prevent valve deposits and maintain compressor efficiency.
A verification of our physical infrastructure, certifications, and quality control systems.
Premium synthetic diesel oils, high-viscosity gear lubricants, and wear-resistant hydraulic fluids.
Longhai
