Do Pipelines and Seals Need Adjustment When Upgating a Rolling Mill to Oil-Air Lubrication?-Huashun Lubrication

Do Pipelines and Seals Need Adjustment When Upgating a Rolling Mill to Oil-Air Lubrication?

Release time:

2024-03-06

When upgrading a rolling mill lubrication system from grease (dry oil) to oil-air lubrication, certain modifications are necessary to ensure optimal performance and reliability. While the pipeline structure may not always require major redesign, cleaning, sealing, and proper preparation are critical steps in a successful retrofit.

Pipeline Cleaning and Preparation
Before commissioning the new oil-air lubrication system, all existing lubrication lines, distributors, and internal passages must be thoroughly cleaned. Bearings should be disassembled and washed, and compressed air should be used to purge the pipelines and distribution channels. This ensures there are no residual grease deposits or blockages that could affect oil-air flow and lubrication accuracy.

Pre-Lubrication Before Startup
Prior to system startup, it is recommended to apply an appropriate amount of lubricating oil to key components such as rolling mill bearings and guide systems. This ensures sufficient lubrication during the initial operation phase before the oil-air system reaches stable working conditions.

Seal Modification for Improved Performance
One important adjustment involves the bearing housing seals. Traditional oil seals should be replaced with J-type seals, installed with the lip facing outward. This configuration allows a small amount of compressed air to create positive pressure inside the bearing housing.

The benefit of this design is twofold:

It significantly enhances sealing performance
It effectively prevents the ingress of water, dust, and other contaminants

Conclusion
While pipeline replacement is not always required, thorough cleaning and proper seal modification are essential when converting a rolling mill to oil-air lubrication. These adjustments ensure smooth system operation, improved bearing protection, and long-term reliability.

What causes the oil flow in oil-air lubrication to not atomize?

What Operations Can Be Performed on Touchscreen of Oil-Air Lubrication System?

Latest News