How often should the hydraulic oil of the hydraulic cutting machine be replaced

The replacement cycle of hydraulic oil for hydraulic cutting machine needs to be determined comprehensively based on the frequency of equipment use, working environment, hydraulic oil type, and equipment manufacturer's recommendations. The following is a specific analysis:

1. Reference period based on usage frequency

Common usage scenarios:

If the equipment operates continuously for low intensity (such as 4-8 hours per day), it is recommended to replace the hydraulic oil every 6 months to 1 year.

High intensity usage scenarios:

If the equipment runs continuously for more than 8 hours/day or has frequent loads, it is recommended to replace the hydraulic oil every 3-6 months.

Extreme working conditions:

High temperature, dust, or humid environments can accelerate the deterioration of hydraulic oil, and the replacement cycle should be shortened to within 3 months.

2. Reference cycle based on hydraulic oil type

Mineral oil hydraulic oil:

It is recommended to replace ordinary mineral oil every year, but if high-quality anti-wear hydraulic oil is used, it can be extended to 1.5-2 years.

Synthetic hydraulic oil:

Synthetic oil has strong antioxidant properties and can be replaced every 2-3 years, but regular testing is required.

3. Based on the recommendations of the device manufacturer

Refer to the maintenance manual in the equipment manual, some brands will clearly indicate the hydraulic oil replacement cycle (such as "every 1000 hours or 6 months").

If the manufacturer provides oil testing services, it is recommended to take samples for testing every 500-800 hours and decide whether to replace them based on the results.

4. Determine the timing of replacement through oil testing

Key indicators:

Regularly check the viscosity, acid value, moisture content, metal particle content and other parameters of hydraulic oil. If a certain indicator exceeds the required range of the equipment, it needs to be replaced immediately.

Simple detection method:

Observe the oil color (blackening, turbidity), smell (burning) or foam (abnormal increase), and replace it in case of any abnormality.

5. Replacement suggestions in special circumstances

Long term shutdown of equipment:

If the equipment has been out of service for more than 3 months, it is recommended to replace the hydraulic oil before starting to avoid oil oxidation or contamination.

After hydraulic system maintenance:

After replacing or repairing hydraulic components, it is necessary to replace the hydraulic oil and clean the system simultaneously.

6. Precautions

When replacing hydraulic oil, it is necessary to thoroughly clean the oil tank and filter element to avoid contamination of the new oil.

The use of high-precision oil filters can extend the service life of hydraulic oil and reduce the frequency of replacement.

Strengthen equipment waterproofing measures during rainy or humid environments to prevent hydraulic oil emulsification.