How to determine the age of the equipment when purchasing the Shadick AD30LS machine tool?

When purchasing the Shadick AD30LS machine tool, it is necessary to comprehensively evaluate the equipment's condition from multiple dimensions such as usage records, physical status, and functional performance. Here are the specific methods:
1. Verify equipment usage records
-Production date and service life**
Check the production date through the body nameplate or equipment serial number, and determine the degree of aging based on the usage time provided by the seller (such as "manufactured in 2020, accumulated 5000 hours of operation"). Usually, the design life of electric discharge machine tools is about 8-10 years, and long-term high load use may accelerate wear and tear.
-* * Working hours statistics**
Check the operation logs or counters in the control system to confirm the actual processing time. If the equipment is frequently used for high-precision machining (such as mold manufacturing), even if the duration is short, key components (such as guide rails, electrodes) may still have hidden wear.
2. Appearance and physical condition inspection
-Wear and corrosion of the body**
Observe whether there are scratches, dents, or rust on key parts such as the workbench, guide rails, and lead screws. If there are obvious oil sludge or wear marks on the surface of the guide rail, it may affect the machining accuracy.
-* * Cables and interfaces**
Check whether the cables and plugs are aged or loose, and whether there are oxidation or burn marks at the interface (which may be caused by abnormal discharge).
-* * Working fluid system**
Check if the fuel tank and pipelines are clean, and if there are any signs of oil leakage or blockage. Equipment that has not been maintained for a long time may corrode internal components due to coolant contamination.
3. Function and performance testing
-* * Trial processing verification**
Require the seller to process standard parts (such as test electrodes) on site and observe whether the machining accuracy (such as dimensional consistency, surface roughness) meets the equipment's nominal parameters (such as Ra ≤ 0.1 μ m).
-Axis motion test**
Manually operate each axis (X/Y/Z axis) to move and check for any jamming, abnormal noise, or positioning deviation. The AD30LS driven by a linear motor should have high responsiveness, and if it moves slowly, there may be a drive system malfunction.
-* * Discharge stability test**
Run the discharge program and observe whether the spark is uniform and stable. If abnormal discharges occur frequently (such as arcs or short circuits), it may be a sign of aging of the power supply or control system.
4. Maintenance and repair history
-* * Maintenance records**
Require complete maintenance records, including spindle lubrication, guide rail cleaning, filter replacement frequency, etc. Equipment that has not been maintained for a long time has a higher failure rate.
-* * Major Maintenance Record**
Confirm whether the equipment has undergone major repairs (such as replacing the spindle and guide rail), and pay special attention to the lifespan and compatibility of the repaired components after the major repairs.
5. Attachment and Control System Evaluation
-Attachment integrity**
Check if the standard accessories (such as electrode fixtures, working fluid circulation system) are complete, and if the optional functions (such as automatic electrode exchange device) are functioning properly.
-* * Control system version**
The ProCon system installed on AD30LS requires software version confirmation, as outdated versions may lack the latest machining strategies or compatibility issues.
-* * Software and Parameters**
Check whether the user program can be called normally and whether the parameter settings are consistent with the factory standards (such as discharge energy and tool lifting frequency).
6. Certification and Document Verification
-Origin and Compliance**
Imported equipment must provide proof of origin, import declaration form, and Chinese safety certification (such as CE certification) to avoid purchasing illegal channels or modifying equipment.
-* * Warranty and Service**
If the device is still under warranty, it is necessary to confirm whether the warranty terms can be transferred to the new buyer.
7. Price and market comparison
-* * Reference market price**
Compare the market situation of second-hand equipment of the same model (such as the brand new AD30LS costing about 400000 to 500000 yuan, while second-hand equipment usually ranges from 8000 yuan to 200000 yuan). A quote that is too low (such as "888 yuan") may result in incomplete equipment or serious malfunctions.
-* * Bargaining space**
Reasonably negotiate based on the equipment status, accessory integrity, and the seller's eagerness to sell, and if necessary, request an extension of warranty period or free maintenance terms.
Summary and Suggestions
-* * Prioritize choosing legitimate channels * *: Trading through second-hand dealers certified by Shadick or platforms with good reputation in the industry to reduce fraud risks.
-* * Professional Machine Testing * *: Hire experienced technicians or third-party testing agencies to conduct a comprehensive evaluation of the equipment, with a focus on testing accuracy, spindle runout, and discharge stability.
-The contract specifies the equipment status, warranty liability, and breach of contract liability. If necessary, a probation period of 3-6 months is required.
By using the above methods, it is possible to effectively determine the age of the Shadik AD30LS and avoid production losses caused by hidden defects in the equipment.