Explore our advanced wholesale catalog designed to meet precise global specifications including API, ACEA, and leading OEM standards.
Modern high-capacity gearboxes operate under increasingly harsh conditions, necessitating lubricants that do more than just coat moving parts. Industrial Gear Treatment Oil acts as a chemical modifier, introducing advanced surface-active additives that react with metallic gear teeth under high localized temperatures. This reaction constructs an ultra-thin, low-friction tribofilm that mitigates micro-pitting, scuffing, and fatigue-induced wear.
Whether formulated for heavy-duty automotive differentials or massive industrial reduction systems, these special additives enhance load-carrying capacity (measured via FZG scuffing tests) and prevent oxidative thermal breakdown. As a reliable manufacturing partner, Shandong Longhai targets these molecular-level requirements to build custom lubricants that significantly extend equipment service life.
Discover how our infrastructure, localized logistics, and raw-material access allow us to provide high-quality lubricants at competitive global wholesale rates.
Our production base spans over 131 acres in Zibo, Shandong, outputting up to 200,000 tons of premium lubricants annually. By leveraging strategic access to raw Group II/III base oils and premium additive components, we optimize production costs while adhering strictly to international ASTM test protocols.
Our filling operations feature fully automated metering systems that ensure packaging precision of 1‰ to 2‰. Transitioning to automated filling machinery has enhanced line efficiency by 20% to 35%, allowing us to process bulk wholesale orders rapidly and maintain dependable delivery timelines.
From heavy-duty steel manufacturing to deep-sea maritime exploration, our formulated gear treatment oils address distinct environmental challenges.
Continuous casting machines and rolling mills subject gear drives to extreme shocks, radiant heat, and process water. Our industrial gear oils (L-CKC/L-CKD) maintain load-carrying fluid films, preventing mechanical wear and emulsification.
Saltwater contamination is a constant operational threat. Our premium marine-grade gear treatments utilize advanced rust inhibitors and demulsifiers to isolate water quickly, enabling continuous protection in humid conditions.
Excavator slewing gearboxes, dump truck differentials, and rock crushers function under abrasive environments. Our heavy-duty formulations resist dust ingress wear, helping fleet operations reduce repair cycles and field downtime.
Founded in 2009 and headquartered in Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. is a high-tech manufacturer specializing in the research, development, and supply of industrial lubricants. Across more than 15 years, we have built a comprehensive industrial supply chain designed to serve global commercial transportation and heavy manufacturing sectors.
Our proprietary brands include "Century Longhai" alongside our strategic international brand partner, the British "A Ba" series. Our dynamic catalog features diesel engine oils, gasoline engine oils, hydraulic transmission fluids, engineering machinery lubricants, motorcycle oils, industrial gear oils, automotive urea solutions, and engine coolants. Reflecting our focus on product reliability, our portfolio is insured by the PICC (People's Insurance Company of China) for quality assurance.
Interactive overview of our design, blending, certification, and packaging services engineered for global brands.
Our lab designs fully synthetic, semi-synthetic, and mineral formulations configured for unique vehicle dynamics, climate variations, or market positions. All formulations match or exceed API, ACEA, and specific OEM requirements.
Our technicians dedicate 5% of annual revenue directly into ongoing chemical research, collaborating with leading research institutions to refine lubricant flow mechanics under pressure.
A strategic analysis of shifting regulatory environments, synthetic developments, and efficiency requirements.
Global environmental mandates and corporate carbon reduction targets are changing the demand structure for industrial lubricants. Traditional mineral oils are increasingly replaced by high-viscosity-index synthetic formulations (PAO and ester-based), which demonstrate lower friction coefficients and longer drain intervals, effectively reducing carbon footprints.
Additionally, modern compact gearbox designs operate with smaller oil reservoirs under higher thermal loads. As a result, modern lubricants must offer superior shear stability and resistance to micro-pitting (FVA 54 testing). By sourcing modern additives and employing automated blending lines, our factory helps wholesale buyers stay ahead of evolving regulatory and industrial standards.
Wholesale procurement professionals must balance cost efficiency with strict technical quality assurance. Volatile base oil markets require suppliers to maintain large inventories and establish robust supply chains.
Shandong Longhai addresses these sourcing challenges through a localized supply network in Shandong, coupled with massive 200,000-ton annual blending capacities. This infrastructure ensures price consistency, steady material supply, and reliable shipping timelines for bulk containers bound for international markets.
Re-evaluate your supply chain with our heavy-duty diesel formulas, synthetic gasoline engine oils, and specialized gear lubricants.
At Longhai Technology, batch consistency and performance are maintained through standardized quality control. We hold certifications for ISO 9001:2015 (Quality Management System), ISO 14001 (Environmental Management System), and ISO 18001 / OHSAS 18001 (Occupational Health and Safety Management).
Additionally, our automatic transmission lubricants carry original OEM approvals, including Mercedes-Benz certifications. This verification process guarantees our lubricants function reliably under high stress, helping global operators maintain equipment safety and reduce maintenance costs.
Our structured system ensures seamless production transition from specification analysis to global shipment delivery.
We analyze targets, application temperatures, viscosity demands, and target pricing.
Our lab tailors base oil and additive compositions to fit targeted OEM requirements.
We perform physical-chemical tests to confirm load performance and wear thresholds.
Automated blending and packaging processes operate under strict ISO monitoring.
We coordinate custom documentation and supply ongoing technical support.
Common questions from B2B buyers regarding production capabilities, order sizes, certifications, and formulas.
Gear Treatment Oils contain higher concentrations of ashless extreme-pressure (EP) additives and surface-reactive compounds. Standard gear lubricants rely on hydrodynamic film thickness alone. Gear treatments, however, form a sacrificial chemical boundary layer on gear teeth. This layer prevents metal-to-metal contact, scuffing, and micro-pitting under high shock loads, vibration, and thermal shifts.
Our products match standards set by organizations like API (American Petroleum Institute), ACEA (European Automobile Manufacturers' Association), ISO, and DIN. For example, our industrial gear lubricants conform to DIN 51517 Part 3 (CLP) specifications, and our automotive lines meet API SP, SN, CK-4, and CJ-4 classifications.
MOQ specifications vary by packaging format and formulation type. Standard pre-packaged items require a minimum order of one 20-foot shipping container (approx. 15-18 metric tons). For customized OEM blending, the minimum run depends on formulation complexity and raw material requirements. Please contact our sales team to discuss custom requirements.
We combine automated dosing systems with batch-specific laboratory analysis. Our intelligent blending facility coordinates components to a precision level of 1‰ to 2‰. Additionally, every batch undergoes physical-chemical laboratory testing (covering viscosity index, flashpoint, pour point, water content, and density) before packaging. Retained samples are archived for two years to support traceability.
Yes, we formulate lubricants to perform across specific operating temperature ranges. Our design team adjusts base oils and viscosity modifiers to achieve the target Viscosity Index (VI), ensuring fluids flow properly during cold startups while maintaining film thickness at high operating temperatures.
We provide full export support, including marine cargo booking, customs documentation, Certificates of Analysis (COA), safety data sheets (MSDS), and custom packaging labeling. We export via China's main northern shipping hubs, including Qingdao Port, ensuring reliable transit times to worldwide destinations.
Step inside our automated production units, blending platforms, and testing labs in Zibo, Shandong.
Get in touch to request product samples, custom blending quotes, or technical documentation. Our lubricant engineers are ready to assist with your specifications.
We operate on our core business principles: "Planning big strategies, focusing on technology, creating high quality, and keeping reputation." Partner with Shandong Longhai to secure a reliable, high-performance lubricant supplier for your machinery and vehicle fleets.
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