We recommend using #46 hydraulic oil from large factories.

First, identify the moisture content of hydraulic oil:

1. Visual inspection method: if the oil is milky and turbid during the use of the hydraulic cylinder, it means the oil contains a lot of water.
2. Burning method: Use clean, dry cotton yarn or cotton paper to dip a little oil to be tested, and then ignite it with fire. If a crackling sound or flashing sound is found, it means the oil contains more water.

Second, identify hydraulic oil viscosity:

1. Dip the hydraulic oil with your fingers and twist them with two fingers. There should be obvious resistance and slide freely.

2. Use a small wooden stick to insert into the oil, and the oil will flow down linearly when lifted.

Thirdly, identify the impurities in hydraulic oil:

1. Sensory identification: there are obvious suspended metal particles in the oil used in the hydraulic cylinder, and the existence of fine particles is directly felt when twisted with fingers.

2, Heating identification: for low viscosity hydraulic oil can be directly placed in a clean, dry test tube to heat up. If sediment particles or suspended matter are found in the oil in the test tube, it means that the oil contains mechanical impurities.

Another intuitive method is to observe directly with the naked eye. The clearer hydraulic oil can directly see foreign objects at a depth of 50cm — 100cm.

The post How To Identify The Quality of Hydraulic Oil? appeared first on China Cutting Machines Manufacturer.

Cutting machines are mostly hydraulically driven, and the reliability and stability of the machine are mostly controlled by hydraulic components. It can be seen that the hydraulic oil is critical to the machine! I have seen one machine which has been used for 4 years without replacing its’s hydraulic oil. It will undoubtedly cause great damage to the machine.

So how often to change the hydraulic oil for the cutting machine?

Generally speaking, the new machine is replaced the hydraulic oil after 10 months of first refueling, and then replace it every year. Clean the filter at the same time as changing the oil (the filter need to be inspected and cleaned every three months)! Of course, this cycle can be extended or shortened according to your own use environment.

Some people will say what a waste! In fact, the cost to change oil is not very large, because there will be a lot of foreign matter in the oil when the hydraulic oil is used for a certain time, but most of the oil is clean. We only need to precipitate and filter out foreign impurities, and most of the oil can continue to be used. The purpose of changing oil is only to remove foreign objects and impurities in hydraulic oil and replenish some new oil.

Solemn remind !!!

Although oil change requires a certain cost, it is obviously much cheaper than maintenance.

In fact, if the machine is well maintained, it will have a long service life, which saves more cost.

The post How Often To Change The Hydraulic Oil For The Cutting Machine? appeared first on China Cutting Machines Manufacturer.

First, replace the hydraulic oil.

The cycle of changing the hydraulic oil is about 1 year (of course, you can also shorten or extend it according to your actual use situation), and clean the fuel tank and filter while changing the hydraulic oil. And please choose a large-brand #46 hydraulic oil.

Second, remove the dust.

Removal of dust and residue should be performed daily (electrical dust should be handled by professionals), after the machine is completely turned off. and paying special attention to sliding and rotating parts.

Third, tighten the bolts.

Fastening bolts is a very important part of the maintenance. Loose bolts will be easy to break and cause bigger problems or accidents, so please do this work carefully (we recommend to do one inspection every three months).

Fourth, check the lubrication system

The sliding and rotating parts of the cutting machine need to be filled with lubricating oil, and good lubrication is necessary, so please check the automatic lubrication system regularly.

Fifth, check the parallelism of the table.

In fact, it is impossible to cut in the center of the cutting machine with the cutting dies every time. Long-term off-center cutting will make the cutting machine parallelism worse, which accelerates the wear of the die and the cutting board. Regularly check the parallelism of the machine, you can master the parallelism situation at any time and adjust the cutting position of the die and correct the unevenness accordingly so that the cutting machine can be used longer with the best performance.

The post How To Maintain Hydraulic Cutting Machine? appeared first on China Cutting Machines Manufacturer.