Why Does Oil-Air Lubrication Use Intermittent Oil Supply?
Release time:
2022-08-12
Oil-air lubrication systems operate with a unique lubrication method: intermittent oil supply combined with continuous compressed air supply.
This working principle is one of the key reasons why oil-air lubrication can achieve precise, efficient, and low-consumption lubrication.
Precise Lubricant Supply Based on Actual Demand
For each lubrication point, the required lubricant consumption is relatively constant under normal operating conditions.
If lubricant is supplied continuously without control, excessive oil delivery may occur, causing:
- Lubricant waste
- Oil accumulation
- Increased friction losses
- Higher operating costs
Therefore, oil-air lubrication uses a controlled intermittent oil supply method. The system delivers a precise amount of lubricant at regular intervals according to the actual lubrication requirements of the equipment.
This ensures that each lubrication point receives the right amount of lubricant — not too much and not too little.
Continuous Air Supply Ensures Stable Lubrication
Compressed air plays an essential role in oil-air lubrication.
It acts as the transportation medium that carries the lubricant through the pipeline and delivers it to the lubrication point.
Continuous air supply helps:
- Maintain a stable oil-air flow
- Transport lubricant evenly through the pipeline
- Keep fresh lubricant continuously available at the bearing surface
- Create a protective oil film during operation
Without continuous air supply, the lubricant cannot be delivered smoothly and consistently.
The Principle of “Small Amount, Multiple Times”
Oil-air lubrication follows the principle of small quantity and frequent supply.
Instead of supplying a large amount of lubricant at once, the system provides small amounts repeatedly over time.
This method helps maintain:
- Continuous lubrication film
- Stable bearing temperature
- Lower friction and wear
- Longer component service life
More Efficient Than Traditional Lubrication Methods
Compared with conventional lubrication systems, oil-air lubrication provides a more accurate lubrication process by matching lubricant supply with actual equipment needs.
This makes it especially suitable for demanding industrial applications such as:
- Steel mill rolling mills
- Continuous casting machines
- High-temperature equipment
- Heavy-duty bearings
Through precise oil control and continuous air-assisted delivery, oil-air lubrication improves equipment reliability while reducing lubricant consumption and maintenance requirements.
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