High-durability fluids engineered to improve system reliability, optimize heat transfer, and reduce maintenance overheads across critical manufacturing applications.
In modern manufacturing, process engineering, and heavy industry, compressed air is often considered the "fourth utility." From petrochemical refining and pharmaceutical processing to high-volume automotive assembly lines, the continuous operation of rotary screw, reciprocating, and centrifugal air compressors is absolutely critical. However, keeping these machines running at optimal performance requires a deep understanding of fluid dynamics and tribological science.
Globally, industrial facilities face mounting pressure to reduce energy consumption, achieve strict carbon neutrality goals, and limit unscheduled maintenance downtime. Poorly formulated compressor fluids fail to withstand high thermal loads, resulting in oxidative degradation, thermal breakdown, and the formation of sludge, varnish, and carbon deposits on internal components. These deposits insulate cooling systems, restrict fluid pathways, and significantly accelerate wear on rotors, bearings, and valves.
To address these challenges, procurement teams and operations directors are moving away from traditional mineral oils in favor of advanced synthetic technologies. They need specialized lubricants that deliver high oxidation resistance, excellent water separation (demulsibility), and a high viscosity index to ensure consistent film thickness across broad temperature ranges.
As a leading exporter and manufacturer, Shandong Longhai Lubrication Technology delivers tailored formulations that directly address these needs, helping global enterprises achieve high operational efficiency, maximize equipment lifespans, and significantly lower total cost of ownership (TCO).
Established in 2009 and headquartered in Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. is a high-tech enterprise integrating research and development, production, and international sales. Deeply committed to the lubrication industry for over 15 years, our team has built a complete industrial chain system, providing top-tier lubrication solutions for the global industrial, marine, mining, and transportation fields.
As a trusted, high-volume lubricant manufacturer, we market our premium proprietary brand "Century Longhai" alongside our international strategic partnership brand, the British "A Ba" series. We offer a comprehensive product catalog developed to protect critical machinery under extreme operating conditions, including diesel engine oil, gasoline engine oil, gear oil, hydraulic transmission oil, anti-wear hydraulic oil, special engine oil for engineering machinery, special oil for natural gas, full synthetic oil, automotive urea solution, antifreeze, special engine oil for motorcycles, industrial oil, and automatic transmission oil.
To give our global distribution partners and industrial end-users peace of mind, all products are fully insured by the PICC People's Insurance Company of China, providing robust liability coverage and guaranteed quality assurance.
Exploring the molecular design and additive chemistry that define high-performance air compressor lubricants.
We formulate lubricants using premium Group II hydrocracked base stocks, synthetic polyalphaolefins (PAO), and ester chemistry (Group V) to match specific operating environments. This design reduces thermal breakdown and extends oil drain intervals up to 8,000+ hours in rotary screw systems.
Our proprietary formulation chemistry features ashless dispersants and high-potency antioxidants. By keeping oxidation precursors in suspension, our fluids prevent them from settling as hard varnish deposits on critical rotors, separators, and bearings.
Moisture condensation is a common issue in air compressors. Our lubricants are designed with advanced water-separating additives, allowing water to quickly separate and drain off. This prevents corrosive wear and maintains a strong lubricating film.
During compression, air temperatures can exceed 100°C, exposing the fluid to intense oxidative stress. Standard mineral oils oxidize rapidly under these conditions, forming carbon deposits that clog oil filters and damage rotors. Longhai's synthetic compressor fluids utilize custom additive packages that neutralize free radicals, maintaining oil viscosity and protecting components from premature wear.
Low-viscosity friction in our PAO-based and ester-based lubricants reduces fluid resistance, optimizing mechanical efficiency and lowering power consumption. Additionally, we verify that our formulas are fully compatible with common industrial seal materials (such as Viton, NBR, and Fluorosilicone) to prevent leaks and maintain system pressure.
Inside our production facilities: 131 acres, 200,000 tons of capacity, and high-precision automation systems.
Longhai Technology has always prioritized innovation to drive business growth. Each year, we invest more than 5% of our revenue back into research and development. Through strategic partnerships with leading universities and research institutions, we continually improve our lubricant formulations and advance industry standards.
Our modern manufacturing facility covers 131 acres and delivers an annual production capacity of 200,000 tons. Equipped with fully automated blending units and advanced quality control laboratories, we can rapidly customize products to meet diverse client requirements. Our automated filling lines use advanced volumetric metering to achieve a precision rate of 1‰-2‰, ensuring consistent product volume with every run.
This automated packaging technology increases filling speed by 20% to 35% compared to conventional systems. This efficiency allows us to optimize production timelines, ensure consistent packaging quality, and handle high-volume export orders with short lead times.
We manufacture all lubricants in strict accordance with international standards, ensuring stable performance under demanding operating conditions.
Our commitment to quality is backed by comprehensive corporate certifications, including ISO 9001:2015 (Quality Management System), ISO 14001:2015 (Environmental Management System), and ISO 45001 / OHSAS 18001 (Occupational Health and Safety Management System).
Additionally, our automatic transmission fluids have earned official Mercedes-Benz approval, demonstrating our ability to meet the strict technical standards of global OEMs. We source high-grade additives and base oils globally, utilizing advanced production technologies and strict laboratory testing to ensure all products remain stable under challenging thermal conditions, helping clients reduce downtime and maintenance costs.
Every production batch undergoes comprehensive laboratory analysis, including testing for kinematic viscosity (ASTM D445), flash point (ASTM D92), pour point (ASTM D97), copper corrosion (ASTM D130), and foaming characteristics (ASTM D892). This thorough testing process ensures that every shipment meets the specifications required by our industrial partners.
Quality Certificate
Environmental Management
Health & Safety
System Certification
Laboratory Report
Mercedes-Benz Approval
Credit Compliance
Association Endorsement
We provide comprehensive contract manufacturing services to help global distributors develop competitive, high-performance product lines.
We formulate full synthetic and semi-synthetic lubricants tailored to specific vehicle specifications, operating climates, or market positioning, ensuring full compliance with international standards like API and ACEA.
We support both small-scale trial runs and large-scale commercial production, covering everything from engine oils to industrial gear lubricants. We also offer flexible packaging and filling volumes to meet diverse market needs.
We provide comprehensive third-party testing reports, product safety data sheets (SDS), and technical datasheets to ensure smooth compliance with international import regulations.
We assist with customized bottle modeling, label design, and material selection to help you establish a distinctive and professional brand presence in your target markets.
Technical specifications and operating parameters analysis.
Custom additive optimization and base oil selection.
Comprehensive validation of thermal stability and wear protection.
Automated blending and high-precision bulk filling.
Export clearance and shipping coordination.
We design lubricants to deliver reliable, consistent performance in demanding industrial facilities worldwide.
We manufacture a broad range of high-performance lubricants, designed to protect equipment and improve efficiency in demanding industrial applications.
Specially formulated for modern turbocharged gasoline engines, providing robust protection against Low-Speed Pre-Ignition (LSPI).
Provides reliable thermal stability and oxidation resistance, helping extend oil life in modern passenger cars.
Provides reliable wear control and sludge prevention under typical driving and operating conditions.
Protects older passenger vehicle engines against high-temperature deposit formation and oil oxidation.
High-durability engine oil designed to protect heavy-duty diesel engines and improve fuel efficiency.
Helps control soot accumulation and engine wear, extending maintenance intervals for fleet operators.
Protects exhaust gas recirculation (EGR) engines, helping optimize performance and reduce oil consumption.
Formulated to protect heavy-duty industrial vehicles and diesel generators operating under demanding conditions.
A closer look at our raw material logistics, quality control laboratories, and corporate facilities.
The global lubrication industry is undergoing a major shift driven by two primary trends: environmental sustainability and advanced equipment diagnostics. As part of international carbon reduction efforts, industrial operators are looking for ways to lower energy consumption across all manufacturing processes. Choosing a high-efficiency compressor lubricant is a practical step toward achieving these efficiency goals.
Low-friction synthetic fluids reduce parasitic drag on compressor rotors, which directly lowers the electrical energy required to run the system. Over thousands of hours of operation, even minor improvements in mechanical efficiency can lead to significant reductions in overall electricity use.
Additionally, modern fleet managers and plant operators are increasingly adopting predictive maintenance strategies. Rather than relying on fixed oil change schedules, they monitor the actual condition of the lubricant to guide service intervals. By checking metrics such as acid number, copper content, and particle count, they can maximize the use of the fluid while preventing unexpected equipment failures.
Longhai is actively developing the next generation of eco-friendly fluids and advanced synthetic formulations to support these changing industrial requirements, helping our global partners improve efficiency, minimize waste, and maintain reliable operations.
Answers to common technical questions about compressor fluids, maintenance, and formulation selection.
Varnish is typically caused by high temperatures and chemical oxidation of the lubricant. When a fluid degrades, it forms insoluble materials that settle on hot metal surfaces, creating a sticky residue. This varnish can insulate heat exchangers and cause bearings to run hot. Using a high-quality synthetic fluid with reliable oxidation resistance helps prevent varnish and keep internal components clean.
As air is compressed, moisture condenses inside the system. If the lubricant doesn't separate from water effectively, it forms an emulsion that reduces the oil's load-carrying capacity and increases the risk of rust. Demulsibility is the fluid's ability to separate cleanly from water, allowing moisture to settle at the bottom of the reservoir so it can be drained away easily.
Group II mineral oils are processed from crude oil and offer standard performance with typical oil change intervals of 2,000 to 4,000 hours. Group IV Polyalphaolefins (PAO) are fully synthetic hydrocarbons that feature a more uniform molecular structure. PAOs offer better thermal stability, a higher viscosity index, and excellent cold-temperature performance, allowing for drain intervals of up to 8,000+ hours under normal operating conditions.
Viscosity selection depends on the compressor type, operating temperature, and discharge pressure. Rotary screw compressors typically require an ISO VG 32, 46, or 68 fluid, with ISO VG 46 being the most common. Reciprocating compressors, which operate under higher pressure, generally require heavier oils like ISO VG 100 or 150. Always consult the OEM manual for specific viscosity recommendations.
Synthetic esters offer excellent lubricity and thermal stability, but they can cause certain sealing materials, like low-nitrile Buna-N rubbers, to swell or soften. For systems using ester-based fluids, it is best to use compatible seals made of Viton (FKM) or high-nitrile rubber. Our technical team can help you select a fluid that is compatible with your equipment's sealing materials.
Browse our range of high-performance transmission, turbine, and gear oils, designed to protect heavy-duty industrial machinery.
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