Overview:
Introducing our Medium-load Industrial Closed Gear Oil, a top-tier high-performance lubricating solution designed specifically for closed industrial gear transmission systems operating under medium-load conditions. This product ensures optimal lubrication and protection for your equipment, enhancing efficiency and reliability.
Crafted with precision, our gear oil combines deeply refined base oils with superior extreme pressure, anti-wear, anti-oxidation, anti-corrosion, and anti-rust additives. This multi-functional formula is scientifically engineered and produced using cutting-edge processes to provide unmatched performance.
Performance features:
Experience exceptional extreme pressure wear resistance, rust protection, and corrosion resistance, ensuring comprehensive gear protection and significantly extending the lifespan of your equipment.
Benefit from outstanding thermal oxidation stability and anti-emulsification properties, contributing to an extended service life of the oil and reduced maintenance requirements.
Product application machinery

This versatile oil is perfectly suited for gearboxes in a wide range of equipment such as reducers, blowers, and ball mills, offering reliable performance across various industrial applications.
Designed for closed industrial gear transmission systems with medium loads, our product excels in relatively mild working environments within sectors like metallurgy, mining, cement, and electric power.
Execution standards
GB 5903-2011
Class, specification
Quality class: L-CKC
Specifications: Available in multiple grades: 68, 100, 220, 320, 460, 680, catering to diverse operational needs.
Offered in various packaging options to suit your volume requirements: 170kg, 18L, and 16L.
We provide flexible OEM and ODM customization services to meet your specific demands.
Warm Tips: Tailored production is available to meet customer specifications. Contact us for your purchase inquiries and let us assist you today!
project |
Product Parameters |
Viscosity Grade |
68 |
100 |
150 |
220 |
320 |
460 |
680 |
Kinematic Viscosity at 40ºC |
68.7 |
99.6 |
152.1 |
218.6 |
323.3 |
465.7 |
684.4 |
Viscosity Index |
97 |
99 |
100 |
102 |
102 |
103 |
104 |
Flash Point (Open ), ºC |
221 |
225 |
228 |
228 |
230 |
231 |
233 |
Pour Point, ºC |
-17 |
-16 |
-13 |
-13 |
-14 |
-12 |
-9 |
Moisture Content, % |
None |
Mechanical Impurities, % |
None |
Demulsibility, at 54ºC (min) |
8 |
/ |
/ |
/ |
/ |
/ |
/ |
Demulsibility, at 82ºC (min) |
/ |
10 |
11 |
13 |
13 |
15 |
16 |
Water in Oil (Volume Fraction) |
1.1 |
1.5 |
1.6 |
1.8 |
1.9 |
1.9 |
1.9 |
Emulsified Layer, mL |
0.7 |
0.7 |
0.8 |
0.9 |
0.9 |
3.6 |
3.8 |
Total Separated Water, mL |
80.0 |
80.0 |
80.0 |
80.0 |
80.0 |
50.0 |
50.0 |
Jining Power Oil Industry Co., Ltd., established in 2002, is strategically located in the culturally rich city of Jining, Shandong, hailed as the home of Confucius and Mencius. With over two decades of expertise in the lubricating oil industry, we stand as a prominent and influential production base in China, recognized for our scale and innovation.
Equipped with state-of-the-art domestic production facilities and fully automated lines, we boast an impressive annual production capacity of 180,000 tons. Our base oil storage can accommodate up to 50,000 tons, with a modern production workshop spanning 25,000 square meters and housing 260 oil tanks, ensuring we meet the substantial and ongoing demands of enterprises.
Our diverse product lineup encompasses over 230 varieties across 13 principal categories, including mining, automotive, and industrial lubricating oils, antifreeze, base oils, and both general and special lubricating greases. These products serve a broad spectrum of industries such as mining, automotive, machinery, metallurgy, electronics, and petroleum processing.
Our commitment to innovation is underscored by multiple national patents and certifications, supported by a dedicated R&D team focused on technological advancements. We continuously refine our formulas and enhance product performance, ensuring our offerings remain at the forefront of the industry.
Aligned with our core philosophy of 'Quality First, Innovation-driven Development', we are devoted to providing premium lubricating oil products and exceptional services to our customers, contributing to the advancement of the lubricating oil industry.
Qualification Certification


Q1: Are you a trading company or a manufacturer?
A: We are a professional lubricant manufacturer with 23 years of industry experience. Our factory is located in Jining, Shandong, the hometown of Confucius and Mencius in China.
Q2: When is the delivery time?
Answer: The delivery time is about 10 days after the deposit is paid, and the specific delivery time depends on the goods and quantity of the order.
Q3: What are your payment terms?
Answer: According to our sales policy, we require 30% -40% telegraphic transfer in advance, 60% -70% balance should be completed before shipment, we can provide real photos or videos of the goods before the balance is paid.
Q4: What are your delivery terms?
Answer: FOB, CFR, CIF or EXW.
Q5: What is your packaging like?
Answer: Usually 200L metal drums, PE bags, cans, or drums of different sizes. It depends on your product requirements. We do our best to meet customer requirements.
Q6: Can I get some samples from you?
A: Of course, we will provide free samples, but you need to pay for shipping.
Q7: Can you provide ODM or OEM?
Answer: We can do it. In order to meet the requirements of the order, we can cooperate in this way. If necessary, please provide samples, which will assist us in testing.
Q8: How do you control the quality of your products?
Answer: The company has independent laboratories and testing equipment, and has established a strict quality control system. From raw material procurement to finished product delivery, every link is strictly tested and monitored. All products meet or exceed national and industry standards.
Q9: How do you ensure our long-term business relationship?
Answer: We have a professional sales and service team that can provide you with timely and accurate technical support and solutions. Whether you encounter problems during product selection, use, or need to customize special specifications of lubricating oil products, we will serve you wholeheartedly.