CNC Bending Machine Manufacturers in China

We are a professional bending machine manufacturer with over 10 years of industry experience. Today, we would like to introduce you to the selection and replacement intervals of hydraulic fluid for bending machines:

In the field of modern metal processing, bending machine as a key processing equipment, its operating status directly affects the production efficiency and product quality. The hydraulic system as the core power source of the bending machine, its working medium - hydraulic oil quality management is particularly important. According to statistics, more than 40% of the hydraulic system failures are due to improper oil selection or maintenance is not timely.High-quality hydraulic fluid not only ensures smooth operation of the equipment, but also significantly extends the service life of key components such as pumps and valve manifolds. This article will systematically introduce the scientific selection of hydraulic oil, reasonable replacement cycle and daily maintenance points to help equipment managers to establish a standardized hydraulic oil use system, in order to ensure the accuracy of the processing at the same time, minimize the failure rate of the equipment, to achieve the double goal of production safety and cost control.

1, The main points of the selection of hydraulic oil

Hydraulic oil performance parameters directly affect the performance of the bending machine. The primary consideration is the viscosity level, usually recommended for CNC bending machine VG46 or VG68 viscosity level of hydraulic oil, the specific selection should strictly refer to the equipment specification. Antiwear performance is also key, HM grade hydraulic oil can effectively protect the pump and hydraulic valve group, it is recommended to prioritize the selection. In terms of oxidation resistance, synthetic hydraulic oils are usually better than mineral oils, which can extend the service life by more than 30%.

The working environment has an important influence on the choice of oil. Normal temperature workshop can meet the needs of ordinary mineral oil; high temperature environment is recommended to use synthetic hydraulic oil, its high temperature performance is better; low-temperature environment should pay special attention to the choice of low condensation point hydraulic oil, to ensure that the equipment in the low temperature environment of the start performance. For precision CNC bending machines, the cleanliness of the oil should also be considered, and it is recommended to choose hydraulic oil below NAS 7.

2, The replacement cycle to determine

The replacement cycle of hydraulic oil needs to take into account the working hours, working intensity and environmental conditions. In general, the recommended replacement cycle for mineral oil is 2000 working hours or 12 months, whichever comes first. Synthetic hydraulic fluids can be extended to 3,000 operating hours or 18 months due to more stable performance. However, the actual replacement also needs to refer to the oil test results, when the oil color becomes dark brown, viscosity changes more than ± 15%, the acid value of 0.5mg KOH / g or more, even if not to the cycle should be replaced immediately.

Adjustment of change intervals is required in special cases. New equipment in the break-in period (the first 500 working hours) will produce more metal debris, it is recommended to advance the first oil change. Bending machines with continuous high-intensity operation, or workshops with dusty and humid working environment should shorten the oil change cycle appropriately. Equipped with oil condition monitoring system, the equipment can flexibly adjust the oil change time according to the real-time monitoring data.

3, Routine maintenance specification

Standardized daily maintenance can effectively extend the service life of hydraulic oil. The oil level should be checked before daily work to see if it is within the standard range, and pay attention to monitoring the oil temperature during operation to ensure that it does not exceed 65℃. Weekly check the cleanliness of the oil, observe whether there are impurities or emulsification. Monthly samples should be taken to test the oil quality, focusing on monitoring the moisture content and particle concentration.

The management of hydraulic oil is the top priority of bending machine maintenance. Through scientific oil selection, standardized replacement operations and strict routine maintenance, not only to ensure stable operation of the equipment, but also significantly reduce maintenance costs. It is recommended that enterprises establish a comprehensive file of hydraulic oil use, record each oil change time and oil parameters, to provide data support for preventive maintenance. Only by paying attention to every detail can we give full play to the processing performance of the bending machine and realize safe and efficient production.

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