Explore our top-tier automotive engine lubricants, extreme pressure gear packages, and anti-wear hydraulic oil formulations trusted by global heavy-duty fleets and industrial plants.
Modern heavy-duty transport and industrial machinery require specialized differential oil additives that can withstand extreme mechanical shear and shock loading.
Differentials, especially hypoid gear designs, operate under high sliding velocities and tremendous loads. Our sulfur-phosphorus additive chemistries react under thermal stress to form a durable protective sacrificial boundary layer, preventing catastrophic gear pitting, scoring, and adhesive wear.
Our tailored friction modifiers adjust the static and dynamic coefficients of friction within multi-plate clutch packs. This prevents the common problem of "stick-slip" shutter or vibration, ensuring smooth torque transfer, optimized cornering traction, and reduced clutch plate wear.
Under continuous operation at temperatures exceeding 130°C, typical gear oils suffer rapid oxidation and mechanical shear of viscosity index improvers. We formulate our additives to inhibit oil aging, resist sludge buildup, and maintain stable film thickness even under extreme load conditions.
Shandong Longhai Lubrication Technology Development Co., Ltd. was established in 2009 and is headquartered in Zibo, Shandong. As a certified high-tech enterprise, we integrate research and development, smart manufacturing, and global technical sales into a unified industrial chain system. For over 15 years, we have worked diligently to solve the lubrication challenges of modern heavy transportation and manufacturing industries.
Longhai Technology manufactures its own flagship brand "Century Longhai" and handles the production of the premium international strategic brand "A Ba" series from the UK. The products cover 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, automatic transmission oil and many other lubricant varieties. To provide absolute reliability, all products are insured by PICC (People's Insurance Company of China) with comprehensive quality liability coverage.
At our 131-acre high-tech campus in Zibo, we operate centralized process computer systems that control base oil storage, polymer shearing, and additive blending. Our automated metering machinery maintains the chemical dosage margin of error at a minuscule 1‰ to 2‰. This ensures that delicate chemical structures, such as viscosity index modifiers and friction control packages, remain completely homogeneous.
By automating the chemical blending and material transport pipelines, we have increased our packaging line throughput speed by 20% to 35%. Whether you require localized bulk vessel shipments, 200L drums, or retail-ready 1L/4L custom plastic bottles, our system guarantees fast lead times, uniform product quality, and full chemical traceability.
Our engineering operations and material testing laboratories strictly adhere to international quality benchmarks, ensuring flawless field operation under extreme stress.
Shandong Longhai Lubrication has implemented and passed the ISO 9001-2015 Quality Management System, ISO 14001:2015 Environmental Management System, and ISO 45001:2018 Occupational Health and Safety Management System. Crucially, our high-performance gear transmission products have passed strict European OEM homologation testing, including Mercedes-Benz (MB) certifications, proving their capability under tough commercial operating standards.
Our additives are formulated to perform across complex global operating environments, handling diverse regulatory standards and local field conditions.
Heavy duty trucks crossing vast geographic regions run under continuous load. In extreme climates, axle differentials face severe thermal strain. Our differential oil additive packages maintain viscosity index integrity and prevent oil shear, reducing drag losses and cutting down fuel consumption.
Wheel loaders, scrapers, and dump trucks endure heavy shock loads and constant water and dust exposure. Longhai's extreme pressure chemistry prevents gear spalling and tooth micro-pitting under low-speed, high-torque shock conditions, extending component lifespan in remote work sites.
Wind turbine step-up gearboxes operate in hard-to-reach locations under varying speeds and heavy loads. Our synthetic industrial gear oil formulations (complying with L-CKD standards) prevent wear and oil oxidation, extending drain intervals to lower maintenance costs.
We partner with global lubricant brands, fleet operators, and industrial distributors to deliver custom-formulated additive packages and finished lubricants.
Whether you are launching a new high-performance synthetic gear lubricant brand or optimizing an existing supply chain, we offer complete private-label and custom-formulation support:
We review your target market, mechanical specs, and budget to plan the custom product line.
Our lab develops customized additive packages to meet performance benchmarks.
We perform mechanical tests and shear trials to confirm product quality and life.
Our automated high-speed line blends, fills, and packs the order for shipment.
We provide ongoing batch testing, technical support, and product updates.
The global lubrication landscape is shifting rapidly. The transition toward electric and hybrid drivetrains requires differential and e-axle fluids to meet entirely new performance standards. Traditional sulfur-phosphorus additives can corrode copper windings in electric motors. Our R&D team is developing next-generation lubricant solutions to address these changing requirements:
Electric Vehicle (EV) Fluid Optimization: Developing low-viscosity, high-resistivity fluids that combine superior gear protection with excellent thermal cooling properties and copper compatibility.
Biodegradable Synthetics: Formulating bio-synthetic ester base stocks with low-toxicity additives for forestry, marine, and open-pit mining operations where environmental compliance is critical.
Nanoparticle Lubrication: Testing nano-tungsten and graphene oil additives that reduce friction coefficients by up to 30% compared to traditional organic compounds.
Get expert answers to common technical questions about differential additive chemistry, performance standards, and custom manufacturing.
A look inside our advanced ISO-certified laboratory, smart blending facilities, and raw material logistics network in Zibo, Shandong.
Our complete range of high-efficiency industrial gear oils, marine heavy lubricants, refrigeration compressor fluids, and heavy diesel engine lubricants.
Longhai
