Premium grade motor oils, high-efficiency turbine fluids, and extreme-load gear lubricants engineered to deliver superior wear protection and operational efficiency.
In modern high-performance manufacturing, the industrial air compressor is a core utility. Operating continuously under challenging pressure ratios and temperature cycles, these machines require highly specialized lubrication interfaces. Compressor mineral oil remains the operational backbone for over 70% of global industrial installations, balancing cost-efficiency with excellent lubricating film stability, seal compatibility, and reliable thermal characteristics.
Understanding user intent and operational parameters is vital. Standard lubricants often break down rapidly under oxidative stress, generating carbon deposits (varnish) that clog oil-separator filters, seize valves, and trigger high-temperature shutdowns. To prevent such failure pathways, Shandong Longhai Lubrication Technology Development Co., Ltd. custom-formulates refined mineral-based lubricants. By utilizing high-viscosity-index Group II and Group III base stocks, combined with advanced anti-wear, rust-prevention, and oxidation-inhibiting additives, we deliver lubricants that ensure system longevity and optimal efficiency.
Compressor mineral oils are categorised primarily by ISO VG (Viscosity Grade) ratings, typically ranging from ISO VG 32, 46, and 68 up to 100 or 150 for heavy reciprocating cylinders. Choosing the correct grade is vital: too low, and the lubricating film breaks down under temperature, causing metal-to-metal contact on screw rotors; too high, and fluid friction increases, leading to energy loss and high start-up torque.
Specially developed for high-speed oil-injected rotary screw air compressors. These low-viscosity oils allow fast heat dissipation and smooth circulation while maintaining high seal efficiency.
Optimized for reciprocating piston compressors. Formulated to withstand the extreme localized heat and pressure within piston cylinders, reducing carbon buildup on the valves.
Engineered for application environments with high humidity where rapid demulsibility (water separation) is essential to protect sliding mechanisms from corrosive oxidation.
Established in 2009 and headquartered in Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. is a high-tech enterprise integrating research, development, precision blending, and global distribution. For more than 15 years, our engineering teams have developed specialized lubricants, creating a robust, vertically-integrated industrial supply chain.
We market under our proprietary brand "Century Longhai" and our strategically partnered international line, the British "A Ba" series. Our dynamic product catalogue covers diesel engine oil, gasoline engine oil, gear oil, hydraulic transmission fluid, anti-wear hydraulic oil, motorcycle lubricants, and specialized industrial fluids.
To assure our global clients of reliable quality, all Century Longhai formulations are covered by quality insurance underwritten by the People’s Insurance Company of China (PICC). This protection underscores our commitment to E-E-A-T principles and mechanical safety.
Industrial installations demand different properties depending on regional weather patterns, atmospheric pollution, and duty cycles.
In regions such as Southeast Asia and coastal South America, air compressors draw in highly humid air. This moisture condenses in the oil separators. Our mineral oils are blended with advanced demulsifiers, which quickly separate water from the oil, allowing operators to drain excess water and maintain a robust oil film to prevent corrosion.
In Middle Eastern industrial zones, ambient temperatures frequently exceed 45°C, raising compressor discharge temperatures. Under these conditions, standard oils oxidise and break down. Longhai’s compressor oils use Group II hydrocracked base oils, providing excellent thermal-oxidative stability and preventing varnish build-up.
Compressors in mining, quarrying, and cement manufacturing ingest ambient dust, which speeds up mechanical wear. Our lubricants contain specialized ashless dispersant packages that keep microscopic particles suspended, preventing them from grouping together and scratching rotary screws or cylinder liners.
Our large-scale manufacturing infrastructure in Zibo, Shandong guarantees delivery reliability and consistent quality for international distributors.
Operating a 131-acre high-tech blending complex, Longhai maintains an annual capacity of 200,000 metric tons. Our facilities feature automated blending systems controlled by central management software, ensuring that each batch meets exact viscosity and chemical specifications.
Our filling lines use weight-based filling systems, which are suitable for a wide range of container sizes from 1-litre bottles to 1000-litre IBC totes. This technology ensures a filling accuracy of 1‰ to 2‰. By upgrading this equipment, we have increased packaging speed by 20% to 35%, helping us fulfill large export orders quickly.
Our quality management systems are certified to ISO 9001-2015, ISO 14001 environmental standards, and ISO 45001 occupational health guidelines. We have also earned Mercedes-Benz approval for our automotive transmission line. Every batch of compressor oil undergoes strict testing in our laboratory, verifying viscosity index, flash point, pour point, and demulsibility before dispatch.
Longhai invests over 5% of its annual revenue in R&D, collaborating with research institutions to develop next-generation compressor lubricants.
As industrial machinery advances, compressor manufacturers are designing smaller units that run at higher speeds and pressures. These compact systems put more stress on lubricants by increasing operating temperatures and reducing oil sump capacities. Our technical roadmap focuses on addressing these demands through targeted development:
We are researching the integration of organo-metallic nanoparticles. These particles form a protective tribo-film on metal surfaces, reducing friction and wear under boundary lubrication conditions during system startup and shutdown cycles.
By blending Group II base stocks with modern synthetic esters, we are creating hybrid lubricants with high solvency. This design keeps oxidation byproducts in solution, preventing varnish deposits on rotors, valves, and oil coolers.
To support sustainable operations and comply with strict environmental regulations, our labs are developing biodegradable compressor lubricants that maintain performance in environmentally sensitive areas without compromising equipment protection.
From initial design to global delivery, we support our partners with customized formulations, flexible filling options, and brand development services.
We evaluate your compressor models, operating conditions, target market requirements, and compliance standards.
Our laboratory blends base oils and additives to achieve the target viscosity index, oxidation stability, and demulsibility.
Samples undergo rigorous tests, including ASTM oxidation stability tests, to verify long-term performance.
We blend the approved oil in our automated facility, ensuring accurate packaging and labeling to your specifications.
We provide ongoing batch documentation, customs compliance support, and technical advice for your distribution teams.
Our OEM/ODM capabilities allow international brand owners and industrial distributors to source tailored lubricants direct from China. Whether you need Group II mineral oils for standard rotary screw compressors, or heavy-duty formulations for high-pressure pistons, we adapt the oil properties to your target markets.
We provide comprehensive packaging design, private label printing, and technical documentation support (including SDS and technical data sheets) to help you build a strong brand presence. Our flexible packaging configurations range from 4-litre canisters for maintenance workshops to 200-litre drums and 1000-litre IBC containers for large industrial operations.
Our commitment to quality is verified by recognized international management certifications, ensuring consistent product performance.
ISO 9001 System
ISO 14001 System
ISO 45001 System
Mercedes-Benz Certification
PICC Quality Insurance
Answers to technical questions about compressor mineral oil selection, system maintenance, and ordering logistics.
Inside our Zibo, Shandong facilities, where we maintain strict quality control at every stage of the manufacturing process.
Get in touch with our engineering and export team to request technical datasheets, order samples, or discuss custom blending requirements.
Whether you require standard mineral formulations for regional distribution, or custom blends for specific operating environments, our team in Zibo, Shandong provides full technical support. We assist with custom formulas, packaging design, SDS documentation, and shipping logistics.
Manufacturing Center: Zibo, Shandong Province, China (Shandong Longhai Lubrication Technology Development Co., Ltd.)
Certifications: ISO 9001:2015 | ISO 14001:2015 | ISO 45001:2018 | Mercedes-Benz Factory Approval
Explore our range of heavy-duty diesel oils, hydraulic transmission fluids, worm gear oils, and specialized high-efficiency air compressor lubricants.
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