Overview:
Our state-of-the-art Medium-load Industrial Closed Gear Oil is meticulously engineered to deliver unparalleled performance in lubricating closed industrial gear transmission systems under medium-load scenarios. It's crafted to perfection, ensuring optimal functionality and reliability.
This remarkable product is formulated using ultra-refined base oils, coupled with a superior blend of additives that provide extreme pressure, wear resistance, anti-oxidation, anti-corrosion, and anti-rust properties. Our scientific formulation and cutting-edge production techniques guarantee that this oil meets the highest standards of excellence.
Performance features:
With superior extreme pressure and wear resistance, along with exemplary rust and corrosion protection, our oil ensures comprehensive safeguarding of your gears. This results in the extended longevity of your equipment, providing you with outstanding reliability.
Boasting excellent thermal oxidation stability and remarkable anti-emulsification qualities, this oil promises an extended service life, making it a cost-effective and efficient choice for your machinery.
Product application machinery

Ideal for deployment in a wide array of gearboxes, including those of reducers, blowers, ball mills, and more, our oil is crafted to cater to your diverse industrial needs.
Specifically designed for use in medium-load closed industrial gear transmission systems, it thrives in relatively mild working environments across industries such as metallurgy, mining, cement, and electric power, ensuring reliability and optimal performance.
Execution standards
GB 5903-2011
Class, specification
Quality class: L-CKC
Specifications available in a range of viscosities: 68, 100, 220, 320, 460, 680, offering flexibility and adaptability for varied applications.
Packaging options: 170kg, 18L, 16L, tailored to meet your specific demands.
We offer expansive customization services with OEM and ODM capabilities to cater to your unique requirements, ensuring your utmost satisfaction.
Warm Tips: We offer customized production to perfectly align with your specific requirements. For inquiries or to make a purchase, please feel free to reach out to us!
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 and located in the historically rich city of Jining, Shandong-home of Confucius and Mencius-is a giant in the lubricating oil sector. With over two decades of experience, we are recognized as a premier production base with substantial influence and scale in China.
Our company boasts state-of-the-art production facilities and fully automated lines. With an impressive annual capacity of 180,000 tons, a base oil storage of 50,000 tons, and a sprawling 25,000 square meter workshop housing 260 oil tanks, we are equipped to meet the extensive and continuous demands of the industry.
Our diverse product portfolio spans over 230 variants across 13 major categories, encompassing mining, automotive, and industrial lubricating oils, construction machinery oils, antifreeze, base oils, and general-specialty lubricating greases. These products are integral to fields such as mining, automotive, machinery, metallurgy, electronics, bearings, and petroleum processing.
With numerous national patents and qualifications, our dedicated R&D team relentlessly pursues technological advancements, refining product formulas and enhancing performance to maintain our leadership in the industry.
We steadfastly uphold our business philosophy of 'Quality First, Innovation-driven Development.' Our commitment is to continuously deliver high-caliber lubricating oil products and services, significantly contributing to the industry's progress and development.
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.