Marine environments impose harsh operational conditions. Sub-sea machinery, deck winches, wire ropes, and propeller shafts are subjected to continuous saltwater exposure, high UV radiation, thermal fluctuations, and massive mechanical shear stresses. Conventional lithium greases fail under water wash-out conditions, leading to rapid component wear, surface pitting, and failure of costly offshore assets.
To overcome these failure modes, premium synthetic marine grease utilizes calcium sulfonate complex thickeners. Unlike lithium-based greases, calcium sulfonate inherently provides exceptional corrosion prevention, extreme pressure (EP) performance, and robust shear stability without requiring excessive chemical additives. This chemistry maintains structural integrity even when contaminated with up to 50% saltwater.
By blending PAO (Polyalphaolefin) and synthetic ester base fluids, our synthetic marine grease maintains an exceptionally high Viscosity Index (VI). This ensures that the lubricating film remains thick enough to prevent metal-to-metal friction under high operating temperatures, yet flows smoothly at sub-zero temperatures encountered in arctic maritime corridors.
Established in 2009 and headquartered in Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. is a high-tech enterprise integrating research, development, formulation engineering, production, and international logistics. For over 15 years, we have built a complete vertical industrial chain, establishing ourselves as a reliable lubrication manufacturer in the global market.
Under our proprietary brand "Century Longhai" and our international strategic partnership brand, the British "A Ba" series, our products cater to specialized and high-demand applications. Our portfolio includes diesel engine oils, gasoline engine oils, gear oils, hydraulic transmission fluids, anti-wear hydraulic oils, special engineering machinery oils, natural gas engine lubricants, full synthetic motor oils, automotive urea solutions, antifreeze fluids, and industrial specialty greases.
To assure global buyers, our entire product portfolio is insured by PICC (China People's Insurance Company), representing a guarantee of quality and commercial reliability. We maintain strict compliance with global quality and environmental standards, paving the way for sustainable machinery operations globally.
We dedicate over 5% of our annual revenue to product research and development. In collaboration with prestigious universities and material science laboratories, we develop custom additive packages tailored for marine, metallurgical, and heavy transportation equipment.
Operating a state-of-the-art production base spanning 131 acres, we maintain a design capacity of 200,000 tons annually. Our production lines feature fully automated blending and precision volumetric filling control systems.
Our packaging facilities utilize automated metering technologies that maintain a filling tolerance of 1‰ to 2‰. This advanced system increases packing speeds by 20% to 35% over traditional systems, assuring timely delivery of bulk wholesale orders.
Shandong Longhai Lubrication Technology operates under a unified quality management framework, holding certifications for:
By conforming to these international frameworks, we ensure our high-performance synthetic marine grease and heavy-duty industrial oils perform under intense conditions, helping global operators minimize unplanned downtime and extend equipment life.
The global shipping sector is under strict regulatory oversight. The US Environmental Protection Agency's Vessel General Permit (VGP) mandates the use of Environmentally Acceptable Lubricants (EALs) in all oil-to-sea interfaces. Synthetic esters provide the base biodegradable building block, ensuring high biodegradability and low toxicity without sacrificing lubrication performance.
With polar navigation lanes opening, marine vessels encounter cold temperatures where conventional mineral oils freeze or solidify. Synthetic hydrocarbon (PAO) marine greases operate reliably down to -50°C, maintaining pumpability in centralized lubrication lines and keeping deck mechanisms functional.
Global mega-ports are employing high-capacity automated gantry cranes and stackers. These harbor-side cranes require greases with high base-oil viscosity, heavy load-carrying capabilities, and salt-spray resistance to limit frequent manual re-greasing cycles.
Marine fleet owners often manage various brands of lubricants, leading to cross-contamination and compatibility failures. By standardizing on our high-performance synthetic calcium sulfonate complex marine grease, fleets can utilize a single grease for electric motor bearings, deck winches, open gears, and rudder posts, reducing storage demands and preventing chemical incompatibility issues.
By dispersing functionalized nanoparticles (such as nano-ceramic or graphene oxide sheets) within the grease matrix, we have developed formulations that fill microscopic surface roughness. This lowers startup torque, reduces boundary friction coefficients, and minimizes wear under boundary lubrication conditions.
Our technical team incorporates advanced water-resistant polymers that form a cohesive structural grid. This prevents the grease from being washed off or dissolving under direct, high-pressure seawater washing, passing ASTM D1264 testing parameters with ease.
Looking to the future of maritime conservation, our laboratory is researching high-stability synthetic bio-esters. These formulations combine rapid environmental breakdown with oxidation stability that rivals standard petroleum-derived lubricants.
We formulate synthetic and semi-synthetic products optimized for specific machinery demands, operational climates, or target market positions. Our custom blends comply with international performance standards, including API, ACEA, and NLGI grades.
Whether you require a highly adhesive tackiness agent for open-sea wire ropes, or low-viscosity greases for cold environments, our engineering laboratory will develop, test, and manufacture your dynamic formulation.
1. Demand Analysis
2. Formula Development
3. Sample Testing
4. Production Delivery
5. After-Sales Support
Advanced wear protection for high-performance petrol engines.
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We always adhere to the management policy of "planning big strategies, focusing on technology, creating high quality, and keeping reputation". We actively optimize plant management and support international distribution, contract blending, and packaging designs.
Whether you require full synthetic calcium sulfonate marine grease, SN/SP passenger car motor oils, or heavy-duty industrial gear fluids, we offer competitive bulk factory rates with consistent quality assured by PICC.
Factory Address: Zibo, Shandong Province, China
Annual Blending Capacity: 200,000 Tons
OEM/ODM Turnaround: Formula validation to delivery in 14-21 working days
Contact our technical team for physical-chemical property sheets, safety data sheets (SDS), or to request a sample batch for laboratory testing.
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