Engineered for ultimate machinery protection, thermal stability under high pressure, and maximum service life.
Established in 2009 and headquartered in the industrial hub of Zibo, Shandong, Longhai Technology is a high-tech pioneer combining lubricant research, customized formulation, advanced testing, and international export operations. For over 15 years, we have served global markets, engineering lubrication products that survive the extreme demands of industrial machinery and heavy-duty logistics operations.
Under our self-owned brand "Century Longhai" and strategic British partnership label "A Ba," we export diesel engine lubricants, synthetic motor oils, anti-wear hydraulic oil, and specialized hydrostatic transmission fluids. The quality of our products is fully backed and insured by the People's Insurance Company of China (PICC), establishing rock-solid reliability for our wholesale partners.
How our formulations combat shear degradation, high hydraulic loads, and extreme thermal stresses in modern heavy machinery.
Hydrostatic drives subject lubricants to extreme mechanical shear forces at micro-clearances. Our hydrostatic gear oil leverages high molecular weight shear-stable viscosity index improvers (VII) that resist permanent viscosity loss, ensuring consistent film strength even under 400+ bar pressures.
High load transmissions often experience surface fatigue like micro-pitting. Using balanced Extreme Pressure (EP) sulfur-phosphorus chemistry, our gear oil builds a molecular boundary film that reduces friction coefficient, saving energy and preserving mechanical tooth geometry.
Moisture ingress and air entrainment degrade system response. Our additives guarantee rapid water separation and fast release of dispersed air bubbles. This prevents pump cavitation, oxidation acceleration, and rust formation inside critical hydraulic loops.
Combining raw ingredient procurement networks with smart machinery to deliver wholesale efficiency globally.
Operating a sprawling 131-acre manufacturing center in Shandong, Longhai features fully computerized blending facilities. Our plant employs specialized metering systems that ensure a filling accuracy of 1‰-2‰. The integration of high-speed automation increases filling velocities by 20% to 35% compared to standard configurations, allowing rapid order turnaround times for global distributors.
Situated in the heart of Zibo, Shandong, our facility enjoys proximity to major petrochemical production sites. This geographical hub minimizes domestic freight costs for base oils and raw additives. We pass these cost benefits to our international clients, offering tier-1 quality at highly competitive wholesale rates.
Certified processes that guarantee cross-border compliance, chemical safety, and OEM compatibility.
Our operation is certified under ISO 9001:2015 (Quality Management), ISO 14001:2015 (Environmental Stewardship), and ISO 45001:2018 (Occupational Health). Every batch of hydrostatic gear oil is cataloged with corresponding raw material certificate numbers for full traceability.
Our automatic transmission fluids and advanced heavy gear formulations comply with OEM specifications, including formal Mercedes-Benz certifications. This guarantees our lubricants meet high European equipment manufacturer requirements.
To secure peace of mind for international buyers, our entire product portfolio is insured under the People's Insurance Company of China (PICC) global policy. This premium coverage confirms our complete confidence in product safety.
From tailor-made chemical formulations to complete label & packaging design services.
We develop high-performance semi-synthetic and fully synthetic oil profiles custom-built for specific operating temperatures, load ratings, or viscosity indexes. All bespoke blends are fully certified to exceed international API and ACEA thresholds.
Whether you require pilot batches for market research or large-scale regular supply, our automated blending line adapts seamlessly. We support container variants ranging from 1L bottles to 200L metal drums and 1000L IBC totes.
We collaborate with recognized laboratories to execute ASTM testing on custom formulations, ensuring compliance with local environmental regulations (such as REACH or RoHS) before shipment.
We provide full design and printing assistance for labels, custom bottles, and shipping cartons. Enhance your market footprint with a cohesive, professional design that aligns with international logistics specifications.
Optimized for systems combining heavy gear reducers with fast-response hydrostatic drive circuits.
Crawler excavators, wheel loaders, and mining dump trucks rely on hydrostatic drive axles. Our lubricants maintain fluid film stability at temperatures exceeding 100°C under heavy loads, reducing friction and component wear.
Combines operate in dusty, high-moisture agricultural fields. Our advanced anti-wear agents and demulsifiers prevent soil contamination from degrading system gears and hydraulic pump components.
Wind turbine yaw systems and marine thrusters undergo severe pressure variations. Our high viscosity index formulation ensures fluid flow in cold starts while protecting gears at high speeds.
Get answers to common technical and logistical questions from our lead formulation engineers.
Complete your supply list with our highly rated heavy duty diesel formulations and compressor fluids.
Longhai
