Df-26 Synthetic High Temperature Grease

DF-26 Synthetic High Temperature Grease is a high-performance High-Temperature Grease formulated with synthetic base oil and composite metal soap thickener. It is suitable for mechanical lubrication parts under high temperature, high load and harsh environment. This grease can maintain stable lubrication performance under extreme temperatures and is widely used in metallurgy, automobile, aviation, electricity, food equipment, wind power equipment and other industries that require high temperature oxidation resistance and long life lubrication.

Its operating temperature range is usually -40°C to 260°C, and it can withstand peak temperatures of up to 280°C for a short time. It has excellent oxidation resistance, shear resistance and extreme pressure performance.

Application:

High-temperature motor bearing lubrication

The motor has high speed and fast temperature rise. DF-26 can keep the bearing temperature stable and reduce vibration and noise

Metallurgical high-temperature equipment

Such as continuous casting rollers, hot rolling machinery bearing lubrication, can resist the high temperature of sintering environment

Wind turbine main shaft and yaw system lubrication

It has excellent low-temperature pumpability and high-temperature lubrication performance to ensure stable operation of the fan

Automotive industry

Exhaust system, brake system, high-speed wheel hub bearing lubrication to avoid wear caused by thermal expansion

Food machinery and equipment

NSF H1 version can be used for food conveying devices, baking equipment chain lubrication, etc.

Plastic and rubber equipment

Such as injection molding machines, calenders, high-temperature bearings and slide rails

Material:

Synthetic base oil: PAO (polyalphaolefin) or ester synthetic oil, viscosity range is usually 100-460 cSt

Thickener: complex metal soap, such as lithium complex, calcium complex or polyurea, to enhance temperature resistance

Additives: including antioxidants, extreme pressure agents, rust inhibitors, anti-wear agents, adhesives, defoamers, etc. to improve overall performance

Special formula: Some models contain solid lubricants such as graphite, MoS₂, etc. to enhance extreme pressure and lubricating film strength

Features:

Strong high temperature stability

Adopting high-quality synthetic base oil and high-temperature thickening system, it has excellent thermal stability and antioxidant ability, and does not decompose or coke during long-term operation at 260°C

Excellent antioxidant performance

Oxidation induction time reaches more than 200 minutes, ensuring that the grease will not deteriorate during long-term high-temperature operation and extend the grease change cycle

Excellent lubricity and adhesion

The grease has strong adhesion and is not easy to shake off. It can form a solid lubricating film on the surface of high-speed and high-load friction pairs, and the friction coefficient is less than 0.08

Strong water resistance

It has excellent waterproof and moisture resistance, and the water washing loss rate is less than 5%, which is suitable for high humidity and high corrosion environment

Excellent extreme pressure and wear resistance

The PB value of the four-ball extreme pressure test is greater than 315N, and the PD value is higher than 2800N, which is suitable for high-load equipment such as bearings, gears and other parts

Low volatility

The 24-hour volatility loss is less than 0.8%, ensuring that the grease will not evaporate or crack quickly at high temperatures, and maintain long-term lubrication effect

Good compatibility

No adverse reactions with most sealing materials, plastic parts, and metals, widely used, and strong system stability

Advantages:

Long service life

Compared with ordinary lithium-based grease, its service life can be increased by 3 to 5 times. Taking the high-temperature bearing of an electric motor as an example, ordinary grease is replaced every 300 hours, while DF-26 can last for more than 1,200 hours, saving labor and maintenance costs

Excellent high temperature resistance

The continuous working ability of up to 260°C makes it outstanding in high-temperature equipment such as hot air furnaces, sintering machines, and automobile exhaust systems, without melting or carbonization

Wide range of applications

It can be used from low temperature -40°C to high temperature 260°C, adapting to the polar environment and high-temperature industrial scenes, and has successful application cases in the power, steel, and rail transportation industries

Excellent friction reduction and noise reduction capabilities

It can effectively reduce the operating noise of the machine by more than 5dB, improving the stability and comfort of the equipment

Environmental protection and safety

It does not contain heavy metals and substances harmful to the human body. Some versions meet the requirements of NSF H1 food grade certification and can be used for food processing machinery and medical equipment

Reduce the total cost of equipment

By reducing the frequency of grease changes, extending equipment life, and reducing downtime, the operation and maintenance costs are comprehensively reduced, and the comprehensive benefits of equipment are improved.

FAQ:

What is the difference between DF-26 and ordinary lithium-based grease?

DF-26 is a synthetic High-Temperature Grease with a wider temperature resistance range, longer life, better oxidation resistance and extreme pressure performance, while ordinary lithium-based grease usually does not exceed 120°C, has a short life, and requires frequent grease changes.

How often should the grease be replaced in a high-temperature environment?

DF-26 is designed for long-term lubrication and can work continuously for more than 1000 hours in a high-temperature environment (above 200°C). The specific replacement cycle needs to be evaluated based on the equipment working conditions and operating time.

Can it be used for high-speed motor bearings?

Yes. DF-26 has good shear stability and low viscosity characteristics, and is suitable for high-speed motor bearing lubrication with a maximum speed of 10,000 rpm.

Is it suitable for food processing equipment?

Some versions of DF-26 have NSF H1 certification, which is suitable for lubrication parts that occasionally come into contact with food, such as baking machines, packaging equipment, etc.

What precautions should be taken for storage?

It should be stored in a dry and cool place, avoiding direct sunlight and high temperature exposure. The shelf life is generally 3 years in a sealed state. It needs to be sealed after use to prevent contamination.