Overview:
Our Transformer Coolant Lubricating Oil is a specialized functional oil meticulously crafted for superior insulation and efficient heat dissipation in a range of electrical equipment, including transformers.
This exceptional lubricant is formulated using base oil that has been refined with precision through a unique process. We enhance its quality by integrating antioxidants and other additives, and concocting it with a scientifically advanced formula to ensure optimal performance.
Performance Features:
- Remarkable insulation properties that ensure electrical integrity.
- Outstanding oxidation stability for long-lasting performance.
- Unmatched cooling efficiency to maintain equipment temperatures at safe levels.
Product application machinery

Specifically engineered for use in transformers operating below 330KV and other electrical apparatuses with similar operational requirements.
Implementation Standards:
GB 2635-2011
Grade Specifications:
Available in Specifications: 25, 45
Offered in convenient packaging forms: 170kg, 18L, 16L
We provide flexible OEM and ODM customization services to suit your unique needs.
Reminder: We offer product customization tailored to your specific requirements.
For purchase inquiries, please do not hesitate to contact us!
project |
product parameters |
|
25 |
45 |
appearance |
transparent |
transparent |
Kinematic viscosity, 40 °C, mm²/s |
12 |
10 |
Pour point, ºC |
-30 |
|
Freezing point, °C |
|
-48 |
Density, 20 °C, kg/m³ |
835 |
836 |
Flash point (open), °C |
145 |
155 |
Acid value, calculated as KOH, mg/g. |
0.001 |
0.003 |
Moisture content (mg/kg), % |
25/40 |
25/40 |
Copper strip corrosion, 100°C, 3 hours, grade. |
1b |
1a |
Jining Power Oil Industry Co., Ltd., established in 2002, is strategically located in Jining, Shandong-celebrated as the hometown of the legendary Confucius and Mencius in China. Over a span of 23 years, we have entrenched ourselves as a pivotal player in the lubricating oil industry, emerging as a large-scale production powerhouse with considerable influence across China.
Equipped with cutting-edge domestic production facilities and automated assembly lines, our company boasts an impressive annual production capacity of 180,000 tons. With a base oil storage capacity of 50,000 tons, a production workshop that spans 25,000 square meters, and 260 oil tanks, we are well-prepared to meet the expansive and ongoing oil needs of enterprises.
Our company holds multiple national patents and influential qualification certifications. With a dedicated R&D team, we continuously foster technological advancements, refine product formulas, and enhance product performance, ensuring our offerings are consistently at the forefront of the industry.
We possess independent laboratories and state-of-the-art testing equipment, underpinned by a rigorous quality control system. Every phase, from the raw material acquisition to the final product dispatch, undergoes meticulous inspection and monitoring. Our products invariably meet or surpass national and industry benchmarks.


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: What's the delivery time?
A: The delivery time is approximately 10 days after the down payment is made. The specific delivery time depends on the products and quantities of the order.
Q3: What are your payment terms?
A: According to our sales policy, we require a 30% - 40% telegraphic transfer in advance, and 60% - 70% of the 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?
A: FOB, CFR, CIF or EXW.
Q5: What's your packaging like?
A: Usually, it's in 200L metal drums, PE bags, cans, or drums of different sizes. It depends on your product requirements. We'll do our best to meet customers' requirements.
Q6: Can I get some samples from you?
A: Certainly. We'll provide free samples, but you need to pay for the freight.
Q7: Can you provide ODM or OEM?
A: We can. We can cooperate in this way to meet the requirements of the order. If necessary, please provide samples, which will help us conduct tests.
Q8: How do you control the product quality?
A: The company has independent laboratories and testing equipment and has established a strict quality control system. From the procurement of raw materials to the delivery of finished products, strict inspections and monitoring are carried out at every stage. All products meet or exceed national and industry standards.
Q9: How do you ensure our long-term business relationship?
A: We have a professional sales and service team that can provide you with timely and accurate technical support and solutions. Whether you have problems in product selection, during the use process, or need to customize lubricant products with special specifications, we will serve you wholeheartedly.