Explore our top-performing industrial lubricants, high-load gear fluids, and engine protection formulations engineered to meet international API and ACEA certifications.
Established in 2009 and headquartered in Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. is a high-tech enterprise integrating R&D, production, and sales. With over 15 years of industry experience, we have built a complete industrial chain system dedicated to providing high-quality lubrication solutions for the global industrial and transportation fields.
As a reliable lubricant manufacturer, Longhai Technology owns its own brand "Century Longhai" and the international strategic cooperation brand British "A Ba" series of products. Underwritten by the People's Insurance Company of China (PICC), our products cover diesel engine oil, gasoline engine oil, gear oil, hydraulic transmission fluid, anti-wear hydraulic oil, special machinery engine oil, full synthetic oil, automatic transmission oil, and other industrial grease varieties.
Why modern global enterprises choose Shandong Longhai as their primary chemical and lubricant supply chain partner.
We source Group II hydrotreated and Group III synthetic base oils combined with world-class additive packages (Infineum, Lubrizol, Afton, Chevron Oronite) to design lubricants that exhibit superior oxidation stability, high viscosity index, and optimal shear stability under high loads.
Our filling production line uses metering principles that ensure high filling accuracy of 1‰-2‰. The line increases packaging speeds by 20%-35% compared to conventional standards, guaranteeing robust supply chain throughput and on-time shipment deliveries.
Every batch produced under the "Century Longhai" and British "A Ba" brands is insured by PICC (People's Insurance Company of China). This strategic policy guarantees absolute reliability and trust, minimizing operational liabilities for international distributors and bulk buyers.
Longhai Technology prioritizes research and technological innovation, allocating over 5% of its annual revenue to R&D. By establishing joint innovation laboratories with leading technical universities and chemical research centers, we continuously optimize the chemical profiles of our synthetic oils to meet the demands of modern high-performance machinery.
Navigating the global transition to high-efficiency, low-carbon, and synthetic lubrication technologies.
We are actively developing synthetic ester-based and vegetable-derived biodegradable lubricants. Designed for offshore drilling, forestry, and water conservancy operations, these fluids prevent severe environmental damage in the event of accidental leaks without sacrificing anti-wear protection.
To meet the demands of the automotive transition, our labs have introduced specialized EV thermal management fluids and ultra-low viscosity transmission fluids. These formulations provide insulation, material compatibility, and extreme high-speed bearing protection.
Utilizing high-quality synthetic PAO (Polyalphaolefin) base oils, our premium range achieves up to three times the service life of conventional mineral lubricants. This reduces waste oil generation and maintenance overheads, aligning with global corporate sustainability goals.
Engineered to withstand extreme environments, from sub-zero arctic temperatures to high-temperature tropical mining zones.
Our heavy-duty diesel oils (API CK-4, CJ-4) and L-CKD heavy-duty gear fluids are specifically designed for continuous operation in construction machinery. Our formulas combat soot buildup, prevent ring sticking, and provide micro-pitting resistance for gearboxes under cyclic shock loads.
Engineered for high-efficiency rotary screw and reciprocating compressors, our synthetic compressor oils prevent carbon and varnish deposits at high discharge temperatures. This guarantees trouble-free operation for up to 8,000 service hours, reducing filter clogging and downstream contamination.
Longhai premium anti-wear hydraulic oil safeguards high-pressure pumps running under severe conditions. With high thermal stability and excellent demulsibility, our hydraulic fluid easily separates water, ensuring consistent pressure transmission and minimal component corrosion.
Our Zibo laboratory is equipped with state-of-the-art instruments to ensure international regulatory compliance.
To achieve certifications including ISO 9001-2015 (Quality Management), ISO 14001 (Environmental Management), and ISO 45001/18001 (Occupational Health & Safety), Longhai maintains strict testing regimens. Our automatic transmission fluid lines hold international Mercedes-Benz approvals, demonstrating compatibility with leading OEM requirements.
Tailor-made formulation development, packaging designs, and label compliance to expand your local brand footprint.
Develop synthetic, semi-synthetic, or mineral lubricants customized for target equipment specs, temperature ranges, and viscosity indexes complying with API/ACEA and global standards.
Our operations adapt to dynamic batch sizes, accommodating trial runs and large-scale industrial blending across diesel oils, gear fluids, and hydraulic lubricants.
Provide detailed SDS sheets, chemical properties declarations, and third-party laboratory verification to ensure smooth customs clearance and import compliance.
Custom packaging options range from 1L, 4L, 18L jugs to 200L metal drums, complete with multi-lingual screen printing, security closures, and branded logistics labelling.
Our streamlined procurement flow guarantees supply chain efficiency, quality control, and technical support.
Demand Analysis
Formula Development
Sample Lab Testing
Production & Delivery
After-Sales Support
A transparent look inside Longhai's modern mixing plants, inventory logistics warehouses, and testing laboratories.
In-depth responses to critical questions commonly raised by chemical purchasing managers, distributors, and engineers.
L-CKC and L-CKD are Chinese industrial standards equivalent to ISO 12925-1. L-CKC is designed for medium-load gear drives working under mild to moderate operational environments. L-CKD is engineered for heavy-duty industrial gears, utilizing synthetic base oils and advanced sulfur-phosphorus EP (Extreme Pressure) packages. This helps prevent micro-pitting under severe shock loads and high thermal stress.
API CK-4 offers significant upgrades over API CI-4, providing enhanced shear stability, oxidation resistance, and soot-control properties. CK-4 diesel engine oil is formulated to support modern diesel engines featuring after-treatment systems (DPF, SCR, EGR). It protects emissions control components while maintaining engine cleanliness and supporting extended drain intervals.
We operate fully automated filling lines governed by volumetric and weight-based metering systems. This maintains packing accuracy between 1‰ and 2‰, preventing product leakage or container discrepancies. The computerized systems accelerate throughput by 20%-35%, enabling us to fulfill bulk orders (containers) within 15 to 25 business days from Zibo, Shandong.
Yes. Our in-house research laboratory develops customized synthetic base oil profiles (utilizing PAO, Esters, and premium Group III bases). This allows us to adjust pour points below -45°C for extreme arctic operations, or modify viscosity indexes up to 180+ to ensure adequate oil film thickness in high-temperature metal casting plants.
Our facility holds ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications. Additionally, our automated transmission fluid line carries official OEM approvals, such as Mercedes-Benz certifications, ensuring full alignment with strict international standards.
We export lubricants in various package volumes: 1L, 4L, and 5L plastic containers for automotive retail; 18L, 20L pails for medium industrial fleets; and 200L steel drums or IBC tanks (1000L) for bulk industrial users. All containers are packed, pallets are shrink-wrapped, and shipments are loaded into standard containers at Qingdao or Tianjin ports.
Certifications, approvals, and compliance records proving our manufacturing capabilities.
Premium turbine oils, refrigeration formulas, motorcycle special oils, and high-performance synthetic engine lubricants.
Operational photos showing our logistics processes and heavy machinery applications.
Contact Longhai's technical formulation group today for a comprehensive lubrication evaluation, fluid analysis advice, or customized private label quote.
Longhai
