High-performance specialized formulations developed for extreme thermal environments, advanced wear protection, and continuous industrial operations.
Positioning high-performance screw compressor fluids at the center of energy-efficient industrial manufacturing.
Screw air compressors consume up to 10% of all industrial electricity worldwide. High-efficiency synthetic lubricants minimize friction losses, delivering up to 3-5% electrical energy savings compared to conventional oils, helping manufacturers achieve localized carbon footprint reductions.
Modern rotary screw compressors operate at high pressures (up to 15+ bar) and discharge temperatures exceeding 100°C. Advanced additives eliminate varnish deposition and carbon crusting on rotor surfaces, ensuring zero-clearance sealing is sustained over long intervals.
Premium synthetic formulations (PAO/Ester blends) extend drain intervals from 2,000 hours (mineral oils) to 8,000+ hours under extreme operational conditions. This significantly lowers maintenance frequency, waste oil disposal volume, and total cost of ownership (TCO).
Established in 2009 and headquartered in Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. is an industry-recognized high-tech enterprise integrating R&D, production, and domestic/international sales. Over more than 15 years, we have built a complete upstream-to-downstream lubrication manufacturing ecosystem, producing premium products designed for global industrial applications and heavy-duty machinery.
Our core brand portfolio includes our proprietary brand "Century Longhai" alongside the international strategic cooperation brand, the British "A Ba" series. Our comprehensive product catalog spans diesel engine oil, gasoline engine oil, gear oil, hydraulic transmission oil, anti-wear hydraulic oil, specialized engineering machinery lubricants, natural gas engine oil, fully synthetic fluids, automotive urea solutions, antifreeze, motorcycle oils, industrial process oils, and automatic transmission fluids (ATF).
To assure absolute commercial security and peace of mind for our international distributors, all products are fully backed and quality-insured by PICC China People's Insurance Company, guaranteeing reliable performance under the most rigorous conditions.
Engineered at a molecular level to handle thermal shearing, moisture contamination, and oxidative stress.
Our screw air compressor oils utilize highly refined hydrocracked Group III base oils or premium polyalphaolefins (PAO Group IV) as their structural foundation. Unlike mineral oils containing unstable unsaturated double bonds, PAO-based synthetics offer superior thermal-oxidative stability, preventing the formation of varnish, carbon, and sludge on hot discharge valves and rotors.
Deposits inside a rotary screw compressor's air-end block can lead to catastrophic bearing failures. Our custom-formulated screw compressor oils utilize advanced ashless (metal-free) additive packages. This prevents the abrasive mineral ash deposits typical of engine oils when exposed to high heat and metal contact surfaces.
Providing custom viscosity matching (ISO VG 32, 46, 68) for all compressor architectures and working parameters.
For delicate electronics assembly lines requiring completely oil-free downstream air, our low-volatility lubricants minimize vapor carryover, reducing the load on coalescing air filters and eliminating chemical contamination.
Compressing active industrial gases can lead to severe catalytic reaction oil degradation. Our synthetic fluids resist chemical dilution and maintain viscosity under continuous exposure to acidic fumes and organic gases.
Heavy dust ingestion degrades conventional oil rapidly. Our high-efficiency dispersants prevent particulates from agglomerating into abrasive sludge, protecting bearings from premature wear.
Quality and reliability verified by global safety and operational management standards.
Developing custom formulations matched to local climates, equipment profiles, and market standards.
We formulate fully synthetic, semi-synthetic, and premium hydrocracked compressor oils to match specific vehicle or heavy machinery requirements, regional climates, and target pricing, ensuring compliance with international API, ACEA, and DIN specifications.
Our packaging facilities accommodate everything from 1L, 4L, and 18L cans up to 200L metal drums and 1,000L IBC containers, complete with multi-language labeling and custom box printing to simplify global distribution.
Discuss Custom SpecificationsA step-by-step path from technical consultation to global export delivery.
Tour our state-of-the-art facilities in Zibo, Shandong.
Expert guidance on choosing, replacing, and maintaining industrial screw air compressor fluids.
Oxidation occurs when base oil molecules are exposed to high operating temperatures (above 90°C) in the presence of oxygen, moisture, and wear metals. The double carbon bonds in standard mineral oils react with oxygen, polymerizing into insoluble organic acids, varnish, and sticky sludge. Shandong Longhai's fully synthetic oils employ premium Group III or PAO base stocks that lack these reactive double bonds, extending oxidative stability and keeping rotors clean.
Viscosity selection depends on your equipment's operating pressure, expected ambient temperature range, and manufacturer recommendations. ISO VG 46 is the standard choice for most rotary screw compressors operating under typical factory environments. ISO VG 32 is preferred for sub-zero environments or extreme cold-starts to minimize drag, whereas ISO VG 68 is recommended for high-pressure systems or heavy-duty operations in hot, tropical climates.
Our standard hydrocracked fluids are rated for up to 4,000 hours of operation under clean factory conditions. Our high-performance fully synthetic PAO/Ester lines operate efficiently for up to 8,000 to 10,000 service hours, provided regular fluid analyses are conducted. Working in dusty, high-humidity, or chemical-heavy environments will shorten these service windows.
Humid intake air condenses into water droplets inside the compressor's air-end circuit as it cools. If the oil has poor demulsibility, the water will emulsify into the fluid, forming a milky mixture that degrades oil film strength, promotes bearing corrosion, and accelerates oxidation. Longhai's advanced demulsibility package separates water rapidly, allowing it to collect at the bottom of the sump for easy draining.
Yes, ashless (metal-free) lubricants are highly recommended. Conventional lubricants often contain metallic wear-protection additives (such as Zinc Dialkyldithiophosphate, or ZDDP). Under high temperatures, these metallic elements form hard ash deposits that build up on precision rotors and block separator filter pores, causing pressure drops and increased power draw. Ashless fluids eliminate this issue, extending separator filter life.
Explore our complete product catalog supporting heavy-duty diesel engines, gearboxes, transmissions, and industrial systems.
Our dedicated team is ready to support your bulk ordering, custom formulation, and distribution needs.
Whether you need a custom formula to meet regional environmental regulations, private labeling packaging design, or bulk imports, we provide complete, transparent support from testing samples to delivery.
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