Explore our industrial-grade synthetic and semi-synthetic formulation series engineered for maximum power protection under extreme load conditions.
A vehicle's differential plays a crucial role in transferring engine torque to the wheels, allowing them to turn at different speeds during cornering. This mechanism operates under immense pressure, particularly in hypoid gear designs where sliding friction is extremely high. To prevent metal-to-metal contact, micro-pitting, and thermal breakdown, high-performance differential fluid must possess exceptional shear stability and load-carrying capacity.
As a leading China differential fluid manufacturer, our formulations are engineered with sophisticated Extreme Pressure (EP) additives. These additives chemically react with gear surfaces under localized high-temperature conditions to create a sacrificial protective layer. This layer prevents wear under API GL-5 severe shock-load conditions, protecting gears in heavy duty commercial haulage and performance automotive systems alike.
At Shandong Longhai Lubrication Technology Development Co., Ltd., we categorize our premium lubricants into three core formulations designed for distinct operational conditions:
Established in 2009 and headquartered in Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. is an accredited high-tech enterprise integrating R&D, production, sales, and comprehensive OEM/ODM supply chains. Deeply involved in the lubricant industry for more than 15 years, the company has built an end-to-end industrial chain, delivering high-performance lubrication engineering globally.
Longhai Technology operates its proprietary brand "Century Longhai" alongside our international strategic partner brand, the British "A Ba" series. Our portfolio spans diesel engine oil, gasoline engine oil, gear oil, hydraulic transmission oil, anti-wear hydraulic oil, specialized engine oil for engineering machinery, marine/natural gas engine oil, automotive urea solutions, antifreeze, and industrial gear lubricants. All strategic products are backed by PICC China People's Insurance Company quality assurance.
Leveraging the robust industrial ecosystem of Shandong to provide globally competitive drivetrain oil solutions.
Our production facilities stretch across 131 acres, featuring automated temperature-controlled blending vessels. The computerized metering filling system delivers filling accuracy of 1‰ to 2‰, boosting production speeds by 20% to 35% over conventional plants to ensure rapid container turnarounds.
By reinvesting more than 5% of annual revenues back into R&D laboratories, we maintain critical partnerships with elite domestic chemical engineering universities. These labs carry out vital ICP metal wear analyses, CCS cold-cranking tests, and foam stability profiles to customize products for high-performance applications.
Situated in Zibo, Shandong, our plant benefits from direct access to China's major raw material clusters, base oil refinery hubs, and the Port of Qingdao. This proximity translates to reduced shipping costs and reliable logistics schedules for overseas distributors.
Longhai Technology implements international automotive and chemical manufacturing standards. We have completed ISO 9001:2015 quality system certification, ISO 14001 environmental management system certification, and OHSAS 18001 health management system protocols.
Furthermore, our automatic transmission and gear formulations carry official Mercedes-Benz OEM certifications. This demonstrates our product quality can reliably stand up to intense real-world driving environments. We also offer full compliance support to global buyers, providing GHS-compliant Safety Data Sheets (SDS), REACH validation documents for European markets, and customs certifications.
Leverage our state-of-the-art facilities to create customized lubricants that match your market's exact equipment specs.
Tailored synthetic and semi-synthetic lubricant recipes designed around your local climate and performance specs (API, ACEA, JASO, SAE viscosity grades).
Scalable capacities that comfortably handle small trial runs or mass-volume industrial contract blending. We offer flexible packaging sizes from 1L bottles to 1,000L IBC tanks.
Our quality control program operates under strict ISO 9001 and IATF 16949 standards, backed by third-party testing reports from SGS/Intertek.
Full support for brand packaging, label design, logistical customs filing, and technical training sheets (PDS/SDS) to streamline your retail launch.
Industrial-grade gear and differential lubrication engineered to perform in the toughest global environments.
Long-haul trucks operating with heavy loads require hypoid gear oils that resist shearing. Our GL-5 gear oils and transmission fluids reduce internal friction, lower operating temperatures, and protect fleet gearboxes over extended cross-border highway routes.
Excavators, wheel loaders, and mining trucks face heavy dust, extreme vibration, and massive shock loads. Our high-viscosity differential fluids prevent micro-pitting and surface wear, keeping heavy machinery running in harsh, abrasive conditions.
Passenger cars equipped with modern Limited Slip Differentials (LSD) require fluids with precise friction modifiers. Our synthetic LSD formulations eliminate gear chatter, improve torque transfer, and protect internal clutch packs.
Global fuel efficiency regulations are pushing the lubricant industry toward lower viscosity gear fluids. Traditional weights like 80W-90 are increasingly being replaced by synthetic 75W-85 and 75W-90 alternatives. These lighter weights reduce churning losses in the axle, helping fleets reduce fuel consumption without sacrificing wear protection.
Electric vehicles put unique demands on gear oils. Because the e-motor is often integrated directly with the reduction gearbox, the fluid must feature high dielectric properties to prevent electrical arcing, copper corrosion compatibility, and excellent thermal conductivity to act as a cooling medium for the motor.
A clear, standardized path from initial product design to final shipping delivery.
We work together to assess your equipment needs, regional climate factors, target specs, and packaging preferences.
Our lab team selects the base oils and additive chemistry to formulate a high-performance sample.
The sample undergoes testing in our facility to verify load capacity, anti-foaming performance, and chemical stability.
Following approval, we schedule the automated blending, filling, and packaging lines before dispatching from our warehouse.
We provide ongoing technical assistance, logistics tracking, batch analysis reports, and marketing support for your business.
Answers to common technical and logistical questions from global buyers and procurement managers.
Explore our industrial-grade gear, motor, and transmission oil formulations developed to meet complex global standards.
Longhai