Engineered to ensure optimal viscosity stability, high oxidation resistance, and superior wear protection for critical equipment.
Compressor mineral oils represent the lifeblood of high-capacity pneumatic transmission systems, chemical process gas lines, and industrial refrigeration equipment. Derived from selected paraffinic base stocks and fortified with custom chemical additives, these lubricants provide the thermal stability, demulsibility, and oxidative resistance necessary to handle the severe mechanical loads of modern operations.
At Shandong Longhai Lubrication Technology Development Co., Ltd., we understand that industrial compressors operate under relentless heat, moisture, and pressure. Our mineral oils are specifically refined to limit carbon deposits and varnish buildup on discharge valves and rotary screws. This direct chemical resilience preserves high system volumetric efficiency and reduces the risk of operational disruptions, extending machine operational lifetimes across international manufacturing ecosystems.
Years of Industrial Lubrication R&D
Tons Annual Production Capacity
Global Industrial Hubs Served
Smart Volumetric Blending Precision
Established in 2009 and headquartered in Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. is a recognized high-tech enterprise integrating comprehensive R&D, advanced production, and international logistics. Over 15 years of dedicated specialization in the lubricant sector has allowed us to construct a complete industrial chain system, catering to complex heavy industrial and transportation operations globally.
Under our proprietary domestic brand "Century Longhai" and the international strategic cooperation brand British "A Ba" series, we provide diesel engine oil, gasoline engine oil, gear oil, hydraulic transmission fluid, anti-wear hydraulic oil, special machinery oils, refrigeration oil, and custom mineral air compressor oil formulations. For added customer assurance, our product lineup is fully backed and insured by PICC China People's Insurance Company.
Exploring the unique manufacturing efficiency, technical scale, and material quality advantages that define Shandong Longhai.
Our production base features intelligent filling lines adopting volumetric metering principles. This guarantees a filling accuracy of 1‰-2‰ and increases production speeds by 20% to 35%, ensuring high volume orders are delivered on schedule.
We allocate over 5% of our annual revenue directly back into our lubrication research centers. Partnering with top domestic research institutes and chemical universities, we constantly refine our additive formulas to minimize wear under extreme pressures.
Zibo is a major refining and petrochemical hub in northern China. This geographical positioning gives us continuous, stable access to premium base stocks, reducing cost volatility and supply risks for our international clients.
Our facilities are operated under strict quality management frameworks, having passed ISO 9001:2015 Quality Management System certification, ISO 14001 Environmental Management System certification, and ISO 45001 (18001) Occupational Health and Safety management systems. Furthermore, our formulations have secured rigorous certifications from Mercedes-Benz for transmission lubricants, confirming the chemical stability of our engineering standards.
By using premium base oils and introducing advanced European and American testing apparatuses, we ensure that every batch of compressor oil performs reliably, even under severe temperature variations and moisture-laden environments.
Industrial compressed air systems are subject to demanding operational schedules, making efficiency and minimal downtime critical priorities. For screw compressors, reciprocating compressors, and rotary vane installations, selecting the correct lubricant has moved beyond simple friction reduction to focusing on thermal optimization and deposit prevention.
Under heavy mechanical loads, air compressors generate significant friction-induced heat. Modern formulations are designed to maintain an optimal ISO viscosity grade (typically ISO VG 32, 46, or 68 for rotary screws; ISO VG 100 or 150 for reciprocating cylinders) even under thermal stresses exceeding 100°C. Longhai’s premium mineral formulations utilize highly refined paraffinic base oils with low volatility profiles, minimizing oil carryover into the downstream distribution network.
When mineral lubricants are exposed to high temperatures and atmospheric oxygen, oxidation occurs. This results in the formation of acidic components and insoluble polymeric chains, commonly known as varnish and sludge. These deposits can restrict flow passages and cause separator elements to clog. Our formulation uses select antioxidant packages to interrupt this degradation process, keeping system components clean between scheduled maintenance windows.
Air compressors draw in ambient humidity, which condenses inside the oil circuit during cooling cycles. If a lubricant does not separate water efficiently, it forms a cohesive emulsion. This emulsion impairs oil film strength and accelerates mechanical wear. Our compressor mineral oils are engineered with rapid demulsibility properties, facilitating the separation of water from the oil so that moisture can be drained off cleanly from the reservoir.
How our custom-tailored lubricants perform under demanding mechanical loads globally.
Mining operations require rock drills and mobile compressors to perform under dusty, high-moisture conditions. Our mineral air compressor lubricants protect rotary screws from abrasive particulate ingress and prevent internal system corrosion.
In chemical and petrochemical plants, process gas compressors require chemical inertness and resistance to dilution by gas streams. Our custom formulations preserve lubricating film thickness under these unique conditions.
Stationary air compressors in steel plants and manufacturing assembly lines run continuously. Our mineral oils help prevent valve carbon deposits, lowering energy consumption and maintenance overhead.
From custom viscometric blending to high-volume distribution, we support global brands with scalable manufacturing solutions.
We work with international clients to formulate lubricants that align with localized operating conditions, environmental regulations, and specific equipment requirements. Our services cover engine oils, industrial gear oils, transmission fluids, and compressor mineral oils, with packaging options ranging from 1L bottles to 1000L IBC totes.
Certified to ISO 9001 and IATF 16949 standards, we provide complete technical documentation, product data sheets (PDS), and safety data sheets (SDS) to streamline export compliance and market entry.
1. Demand Analysis
2. Formula Development
3. Lab Sample Testing
4. Commercial Blending
5. Global Logistics & Support
A look inside our manufacturing environment, high-precision laboratories, and storage facilities.
Expert answers to common technical queries about industrial compressor lubrication.
Mineral compressor oils are derived from refined paraffinic crude base oils and are well-suited for moderate operating temperatures and steady load environments. They offer good compatibility with standard elastomers and seals, making them a cost-effective choice for general industrial applications. Synthetic compressor oils (such as PAO or POE formulations) are designed for extreme temperatures and extended drain intervals, but require careful compatibility checks with existing seals.
Rotary screw air compressors typically use ISO VG 32 or ISO VG 46 viscosity grades. The lower viscosity helps ensure rapid heat dissipation and efficient lubricant film formation across the screw rotors. Reciprocating piston compressors, which generate higher localized pressures and operate at lower speeds, generally require higher viscosity grades like ISO VG 100 or ISO VG 150.
Anti-wear additives, such as zinc dialkyldithiophosphate (ZDDP) or ashless alternatives, react with metal surfaces under friction-induced heat. This reaction creates a microscopic sacrificial film that prevents direct metal-to-metal contact, protecting rotor gears and bearings from scuffing and accelerated wear.
Air compressors draw in ambient air, which condenses into water inside the system as it cools. Lubricants with poor demulsibility will form a stable emulsion with this water, reducing the strength of the oil film and increasing the risk of rust. High demulsibility ensures that water separates quickly from the oil, allowing it to collect at the bottom of the reservoir where it can be drained.
Under high discharge temperatures, degraded oil can form carbon deposits on valves and cylinder heads. In extreme cases, these deposits can restrict air flow, increase internal operating temperatures, and become potential ignition points. Utilizing highly refined mineral oils with strong oxidation resistance helps prevent carbon build-up, supporting safer and more efficient system operation.
In standard rotary screw compressors operating under normal load conditions, high-quality mineral lubricants typically offer a service life of 2,000 to 4,000 operating hours. This interval can vary depending on operating temperatures, ambient air quality, and maintenance practices. Regularly monitoring oil condition through fluid analysis helps determine optimal change intervals for your specific equipment.
Explore our wider catalog, including turbine, gear, marine, and high-load transport vehicle lubricants.
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