China Leading Offshore Petroleum Suppliers

Precision-Engineered Heavy Duty Lubrication & Fluid Solutions Supporting Global High-Load Marine Infrastructure

Premium Engineering Products

Explore our elite portfolio of high-durability marine-grade and industrial gear, engine, and turbine lubrication fluids.

Wholesale Longhai Premium Anti-Wear Hydraulic Oil

Wholesale Longhai Premium Anti-Wear Hydraulic Oil – Superior Protection for Industrial Applications Suppliers, Service

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China High-efficiency air compressor oil

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Wholesale Turbine Oil Professional Solution

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Wholesale High-performance worm gear oil

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China LONGHEAD SP Premium Motor Oil

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China Longhai Heavy-Duty Gear Oil

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China Four-stroke motorcycle special oil

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Wholesale Longhai CI-4 PLUS Premium Diesel Oil

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Shandong Longhai Lubrication Technology Development Co., Ltd.

Founded in 2009 and situated in Zibo, Shandong, Shandong Longhai Lubrication Technology Development Co., Ltd. stands as a premier high-tech enterprise. Over the last 15 years, we have built a fully integrated R&D, production, and distribution network. Our ultimate focus is delivering ultra-stable, high-performance lubrication products that cater to the demanding requirements of global marine, petroleum extraction, and heavy-duty transportation industries.

We serve as a vital pillar in the domestic and international energy supply chains. By utilizing advanced synthetic technology, our proprietary brand "Century Longhai" alongside our international strategic partner brand, the British "A Ba" series, addresses the global market’s most rigorous mechanical trials. Our entire range features product and quality liability insurance backed by PICC (People’s Insurance Company of China), assuring operations with risk-mitigated reliance.

Longhai Lubricant Manufacturing Facility

Global Offshore Procurement Dynamics

Unlocking superior reliability and performance parameters under harsh maritime environments.

Marine Corrosion & Rust Control

Saltwater, high humidity, and severe mist require lubricants with exceptional demulsibility. Longhai's formulations isolate water elements swiftly, creating an impenetrable anti-rust barrier on critical metal gears.

Thermal & Oxidation Stability

From freezing subsea lines to scorching diesel engine bays, our fluids sustain a stable viscosity index. This mitigates sludge formulation and ensures continuous hydraulic response under sudden temperature swings.

Extreme-Pressure Protection

Offshore drilling drives extreme mechanical torque load. Our synthetic gear oil and anti-wear hydraulic oil form robust boundary lubricants that protect gears from micropitting, scuffing, and fatigue.

15+
Years of Industry R&D
200K
Tons Annual Capacity
131
Acres Manufacturing Base
1‰-2‰
Filling Accuracy

Macro Lubrication Solutions for Global Offshore Infrastructure

How Longhai engineering lubricants solve complex wear vectors across offshore drilling, marine logistics, and industrial plant operations.

Offshore exploration and production (E&P) require lubrication systems that can endure some of the most punishing environments on the planet. Heavy seas, high-pressure subsea wells, and non-stop operational cycles leave no room for lubricant breakdown. Shandong Longhai Lubrication Technology Development Co., Ltd. resolves these challenges by introducing high-performance molecular blending designed specifically for deepwater and shelf applications.

1. High-Performance Subsea & Platform Hydraulic Systems

Modern offshore drilling rigs depend heavily on hydraulic power to control subsea blowout preventers (BOPs), tensioners, and deck cranes. Our Wholesale Longhai Premium Anti-Wear Hydraulic Oil utilizes premium hydrocracked base oils paired with advanced zinc-free additives. This provides exceptional hydrolytic stability and filterability, preventing filter blockage even in the presence of minor water contamination. It maintains viscosity integrity at extreme ocean floor depths, preventing cavitation and pump wear.

2. Specialized Rotary Screw & Reciprocating Air Compressors

Compressed air systems serve as the lifeline for instrument air and pneumatic tools on offshore platforms. Standard compressor oils struggle against continuous salt-spray exposure, accelerating acid formation and varnish buildup. Our China High-efficiency air compressor oil features enhanced anti-oxidant chemistry that resists thermal cracking. It preserves clean rotors and separators, extending oil drain intervals (ODIs) to over 8,000 operational hours.

3. High-Load Offshore Wind & Heavy Gearboxes

With turbine installations moving further offshore, access for maintenance becomes incredibly costly. Gearboxes in these installations suffer from severe wind shear loading and micro-movements, making them prone to micropitting. Our China Longhai Heavy-Duty Gear Oil delivers premium micropitting protection across a wide temperature range, significantly reducing premature gear fatigue. It meets and exceeds major industry specifications including DIN 51517 Part 3, proving its viability under extreme marine wind farm operations.

Technical Roadmap & Smart Production

Merging advanced chemical formulation with high-precision automation systems.

Smart Blending and Metering System

Our intelligent factory features fully automated blending manifolds that monitor raw material flow rate, temperature, and mixing viscosity in real-time. By investing over 5% of annual revenue directly back into R&D, Longhai maintains a highly modern blending setup. The filling production line integrates high-precision volumetric meters to guarantee a filling accuracy of 1‰-2‰, preventing product loss and maintaining stable packaging quality.

Moreover, the integration of these smart systems has boosted overall plant efficiency by 20% to 35%, ensuring we meet large volume procurement requests with minimal lead times.

Global Scale & Domestic Footprint

Spanning 131 acres, our primary production center produces up to 200,000 tons of premium lubricants annually. We serve a broad network across China, providing consistent supply logistics across 139 cities in 29 provinces and autonomous regions. Our international logistics infrastructure supports global bulk shipments, catering to offshore operations in Southeast Asia, the Middle East, and beyond.

To ensure high standards, our laboratory operates high-performance testing instruments, conducting ASTM-compliant checks on viscosity, flashpoint, pour point, CCS, and ICP elements.

Customized OEM/ODM Marine Lubrication Services

Adapting base-oil viscosities and additive chemistry to align with proprietary industrial machinery and regional climates.

We provide full-spectrum customization services for global oil distributors, drilling companies, and marine fleet managers. Our engineering team designs semi-synthetic and fully synthetic formulations tailored to meet API, ACEA, and specific OEM specifications.

1. Custom Viscosity & Additive Chemistry

We optimize pour points and shear stability indicators to match target environments, from extreme Arctic cold to tropical marine operations.

2. Flexible Scale & Automated Blending

Our manufacturing lines accommodate trial batches for field tests as well as large-scale bulk containers for international logistics.

3. Regulatory Approvals & Certifications

Every formulation undergoes rigorous testing to match critical environmental guidelines (such as EPA VGP regulations for biodegradable lubricants).

OEM/ODM Customization Services

Cooperation Process

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1. Demand Analysis

Evaluating technical parameters, machinery specs, and target applications.

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2. Formula R&D

Synthesizing optimal base oils and additive balances in our laboratory.

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3. Quality Validation

Running extreme load, corrosion, and oxidation tests on trial samples.

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4. Smart Blending & Delivery

Initiating high-precision automated filling and global shipping logistics.

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5. After-Sales Support

Providing continuous fluid analysis and optimization recommendations.

International Certifications & Quality Operations

Verifying performance and compliance metrics through international audits and strict testing standards.

At Shandong Longhai Lubrication Technology Development Co., Ltd., quality consistency remains our primary focus. We have designed our quality framework to meet key international maritime and heavy industrial operations. Our facility operates under the following certifications:

  • ISO 9001:2015: Quality Management System ensuring consistent batches.
  • ISO 14001:2015: Environmental Management System minimizing environmental impact.
  • ISO 45001:2018 / OHSAS 18001: Safety standards for risk-free manufacturing.
  • OEM Mercedes-Benz Approval: Certifying transmission fluids for global automotive requirements.

By blending imported additive packages with high-purity synthetic base stocks, we ensure our oils perform reliably under extreme marine stress, helping operators reduce downtime and extend maintenance intervals.

Technical Q&A: Marine & Offshore Lubricants

Answers to critical questions on offshore lubricant selection, formulation stability, and international supply chain support.

Q1: What parameters make Longhai lubricants suitable for marine offshore applications?
Our offshore lubricants are formulated with high-purity base stocks (Group II/III and synthetic esters) combined with advanced rust inhibitors and emulsification control additives. Marine environments introduce constant saltwater contamination risk. Longhai's fluids feature rapid demulsibility (separating water in under 15 minutes) and exceptional hydrolytic stability, ensuring the oil film remains intact and protects critical metal components even under moist conditions.
Q2: How does the PICC product insurance benefit international buyers?
Every product batch leaving our manufacturing center carries product quality liability insurance backed by PICC (People’s Insurance Company of China). This provides global procurement teams with solid risk management, guaranteeing protection against equipment damage resulting from any raw material or manufacturing deviation. It demonstrates our E-E-A-T commitment to high quality and reliability.
Q3: How does your filling accuracy of 1‰-2‰ impact shipping and reliability?
Our state-of-the-art volumetric metering filling lines eliminate packing variations. This precision ensures that whether you buy in bulk, IBC totes, or individual barrels, you receive the exact volume promised. Additionally, this automation increases output speeds by 20% to 35%, ensuring high volume orders are fulfilled and ready for shipment quickly.
Q4: Can Longhai match OEM specifications like Mercedes-Benz, API CK-4, or DIN 51517?
Yes, our formulations are engineered to match and exceed international standards. Our automatic transmission fluid (ATF) carries formal Mercedes-Benz OEM approvals, and our motor oils meet API CK-4, CJ-4, CI-4 Plus, and SP performance criteria. Our industrial gear oils meet DIN 51517 Part 3 micropitting requirements, making them suitable for wind turbine gearboxes, mining machinery, and marine thrusters.

Company Infrastructure & Laboratory Show

Inside our intelligent 131-acre blending and packaging operations.

Specialty Fluid Solutions

Optimized formulations designed for synthetic diesel engines, refrigeration systems, and heavy power transmission machinery.

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China Longhai Premium Hydraulic Transmission Fluid

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