When purchasing used CNC machine tools, you should pay attention to the following points:
1. Equipment Condition
1. Appearance inspection:
– Carefully observe the appearance of the machine tool to see if there are obvious dents, deformations or rust. These can affect the precision and stability of the machine tool.
– Check whether protective doors, covers and other components are intact to ensure the safety of operators.
2. Precision detection:
– Require the seller to provide a machine tool accuracy test report, or hire a professional testing agency to conduct the tests. Focus on machining accuracy, repeated positioning accuracy and other indicators.
-You can test the actual accuracy of the machine tool through trial processing, process some parts with certain accuracy requirements, and observe the processing effect.
3. Mechanical components:
– Check key mechanical components such as pins, guide rails and screws for wear. Excessive wear can lead to problems such as reduced processing accuracy and increased noise.
– Check whether the movement of each axis is smooth and whether there are any blockages, abnormal noises, etc.
4. Electrical system:
– Check whether the electrical cabinet circuits are neat and standardized, and whether they are old or damaged.
– Test whether the various electrical functions of the machine tool, such as starting, stopping, speed adjustment, tool changing, etc., are normal.
2. Historical documents
1. Lifespan:
– Understand the age of machine tools Generally speaking, machine tools with a shorter lifespan are more efficient.
– Considering the intensity of use of machine tools, machine tools that operate under heavy load for a long time may wear out more quickly.
2. Maintenance records:
– Require the seller to provide machine tool maintenance records to understand the problems and maintenance status of the machine tool.
– Focus on whether there have been any major defect repairs and whether the machine tool’s performance has returned to normal levels after the repairs.
3. Maintenance status:
– Find out about the maintenance status of machine tools, including daily maintenance, regular maintenance, etc. Proper maintenance can extend the life of machine tools.
– Check whether the lubrication system of the machine tool is normal and whether the lubricating oil is replaced in time.
3. Price and after-sales service
1. Price comparison:
– Before purchasing used CNC machine tools, understand the market conditions and compare the prices of machine tools of different brands and models.
– Don’t buy just because the price is cheap, consider the performance and quality of the machine tool overall.
2. After-sales service:
– Find out if the seller provides after-sales service, such as warranty period, technical support, etc.
– Ensure timely access to maintenance and technical support after purchase to reduce losses caused by equipment failure.
4. Other questions
1. Brand and model:
– Favor machine tools from well-known brands and mature models. The quality and performance of these machine tools are relatively more guaranteed.
– Take into account the versatility and scalability of machine tools to meet future production needs.
2. Transportation and installation:
– Ask a professional transportation company to transport the machine tool to ensure that the machine tool is not damaged during transportation.
– When installing a machine tool, it is best to have it carried out by professional technicians to ensure that the precision and performance of the machine tool are not affected.
In short, you should be careful when purchasing second-hand CNC machine tools, carefully check the condition of the equipment, understand historical records, compare prices and after-sales service, etc., to make sure you buy a good quality machine tool. performance and reasonable price.
Daguang focuses on providing solutions such as precision CNC machining services (3-axis, 4-axis, 5-axis machining), CNC milling, 3D printing and rapid prototyping services.
