5 core advantages of PAG high-temperature chain oil

PAG base fluids have adjustable water solubility or insolubility and are the only water-soluble lubricant additives. Their high oxygen content gives them excellent cleaning properties, making them suitable for applications prone to carbon buildup. As a high-quality high-temperature chain oil base oil, it is widely used in chain lubrication of equipment such as high-temperature ovens, textile printing and dyeing machines, and heat-setting machines.

High-temperature chain oils must meet high-temperature stability, a high viscosity index, a high flash point, low carbon residue, low volatility, and good adhesion properties. Based on applicable temperature, they are mainly divided into three categories: mineral oil-based, semi-synthetic, and PAO-based (<150℃), polyether-based (150～250℃), and synthetic ester-based (220～300℃ and above).

Comparative Parameters of Different Types of High-Temperature Chain Oils

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Parameter Item	Water-Soluble PAG	Water-Insoluble PAG	PAO	POE
Acid Value (mgKOH/g) ≤	0.05	0.05	<0.05	0.05
Kinematic Viscosity 40°C (mm²/s)	320	330	407.19	288-352
Kinematic Viscosity 100°C (mm²/s)	58	51	40.21	27-32
Viscosity Index (VI)	240	225	149	120
Flash Point (°C)	240	220	270	300
Pour Point (°C)	-42	-40	-36	-30
Moisture ≤	0.1 wt%	0.1 wt%	0.005 wt%	-

Temperature Range Comparison for Different Types of High-Temperature Chain Oils

 

Chain Oil Type	Applicable Temperature Range
Mineral / Semi-Synthetic	< 150°C
PAO-based	< 150°C
Polyether-based	150°C ~ 250°C
Ester-based	220°C ~ 300°C

High-temperature chain oil is like the "blood" of a chain drive system; its performance directly determines equipment lifespan, energy consumption, and production efficiency. At 220℃, PAG conveyor lubricant is the optimal choice. Why? The five core advantages of PAG high-temperature chain oil are as follows:

 

1. Excellent Lubricity

Smooth chain operation relies on excellent lubrication, and high-temperature chain machines have even higher lubrication requirements. PAG base oil exhibits excellent high-temperature lubrication performance up to 220℃. Lubricity refers to the chain oil's ability to maintain an oil film at high temperatures, helping to reduce friction and equipment wear. PAG base oil, as a chain oil, has good lubrication performance, forms a film quickly, and has good adhesion properties, making it widely used in high-temperature chain oils.

 

2.High Flash Point and Low Volatility

 

Evaporation loss and coking are among the most important performance indicators of high-temperature chain oils. Polyalkylene glycols offer advantages such as high flash point and low volatility. A flash point higher than the actual operating temperature ensures stable equipment operation, prevents fires, guarantees safety, and reduces carbon buildup.At high temperatures, evaporation loss and coking need to be considered. High evaporation loss leads to high oil consumption and increased costs. High-temperature coking is unavoidable, but it can be reduced by using high-quality oils and keeping the equipment clean over a long period of time. PAG high-temperature chain oil is perfectly suited to these performance requirements.

 

3. Excellent Detergent Properties

 

PAG inherently possesses excellent detergent properties. Due to its unique molecular structure and high oxygen content, it is particularly advantageous in environments prone to carbon buildup and sludge. In oven oil, it can clean chains contaminated by other inferior chain lubricants. Excellent detergency keeps equipment clean, ensures long-term stable operation, improves efficiency, and reduces equipment friction wear.

 

4. Excellent High and Low Temperature Performance

 

PAG's excellent high and low temperature performance allows for easy machine start-up even at lower temperatures. PAG base oils have a high viscosity index, maintaining stable equipment operation at temperatures not exceeding 220°C, demonstrating excellent high-temperature resistance.

 

5. Environmental Friendliness

 

PAG (especially the water-soluble type) has outstanding environmental characteristics: high biodegradability and low toxicity; its high oxygen content provides a "self-cleaning" effect, reducing carbon deposits and sludge. In addition, PAG is non-toxic and odorless, safe for the environment and human health, and is therefore widely used.

 

Comparative Performance of Different Polyethers

 

Item	Oil-Soluble Polyether	Water-Soluble Polyether	Water-Insoluble Polyether
Viscosity-Temperature Characteristics	+	++	+
High-Temperature Stability	+	++	+
Anti-Coking Performance	++	++	++
Friction Coefficient	++	+++	++

 

Note: "+" indicates performance level, with more "+" symbols representing better performance.

 

PAG high-temperature chain oil is a triol-based PAG with a kinematic viscosity of 230, a pour point of -40°C, and a flash point of 240°C. It is widely used in heat setting machine oils and is suitable for lubricating the tracks and chains of heat setting machines in the textile industry and imported SST resin finishing machines.

Chorus offers a variety of PAG fluids (including water-soluble and water-insoluble polyethers) and their various additives. We also provide synthetic greases for high-temperature chain oils and can offer suitable solutions for lubricant additives. Please contact us for the latest pricing.