What do I need to look for when buying a used Dimond spark machine?

When buying a used Dimond spark machine, you need to pay attention to the following matters:

I. Equipment performance and quality

Processing accuracy: Check the flatness of the working table, the straightness of the longitudinal and transverse guide rails, and the positioning accuracy between the electrode and the workpiece, etc. You can test whether the actual processing accuracy meets the production requirements by processing test pieces.

Electrode loss: understand the equipment in the normal processing conditions of the electrode loss, electrode loss is too large will not only increase production costs, but also may affect the processing accuracy and efficiency.

Stability of discharge: Observe the stability of the spark machine in the process of discharge machining, whether there is uneven discharge, arc discharge and other abnormal phenomena, unstable discharge will lead to poor surface quality, slow processing speed and other issues.

Mechanical transmission system: check the transmission accuracy of the axes, the wear of the screw nut and the guide rail lubrication and wear, if the transmission system has problems, will affect the positioning accuracy of the equipment and the smoothness of movement.

Second, the use of years and wear and tear

Length of use: ask the equipment's service life, and check the appearance of the equipment, worktable, electrode fixtures and other parts of the wear traces, in general, the use of a shorter life, the degree of wear and tear of the equipment is relatively good performance.

Core components: focus on the key components of the spark machine, such as the control cabinet of the electrical components, transformers, pulse power supply, etc., the degree of aging, can be viewed through the components of the appearance of the color, the presence of scorch marks and measurement of its resistance, capacitance and other parameters to determine.

Third, the equipment configuration and function

Standard configuration integrity: check whether the standard configuration of the equipment is complete, such as electrode clamps, working fluid system, automatic fire extinguishing device, etc., the lack of the necessary configuration will affect the normal use of equipment.

Optional configurations installed: understand whether the equipment is installed such as C-axis, automatic tool changer, online measurement system and other optional configurations, these configurations can improve the processing functions and automation of the equipment, but also affect the price of the equipment.

Fourth, the working fluid system

Working fluid tank cleanliness: check the working fluid tank is clean, there are no impurities, sediments and oil, etc., if the working fluid tank is dirty, may lead to working fluid contamination, affecting the processing results and equipment life.

Working fluid pump and filter: check the working condition of the working fluid pump, including pump pressure, flow rate is normal, and whether the filter is clogged, the working fluid pump and filter problems will affect the working fluid circulation and filtration effect.

Fifth, the control system

CNC system version: to understand the equipment equipped with the version and function of the CNC system, the newer CNC system usually has a better operator interface, stronger programming capabilities and higher control accuracy.

Operation and Programming: Check whether the operation of the CNC system is flexible and convenient, whether the function keys are normal, and also check whether the programming mode of the equipment is in line with your habits and production needs.

Sixth, safety performance

Protective devices: check whether the protective devices of the equipment such as protective doors, guardrails, light curtain sensors are complete and effective, imperfect protective devices will pose a threat to the safety of the operator.

Grounding and leakage protection: Make sure the equipment is well grounded and the leakage protection device is working properly to prevent electric shock accidents.

Seven, after-sales service and technical support

Original manufacturer after-sales service: understand whether the original manufacturer also provides after-sales service, and after-sales service content, response time and charges, etc., good after-sales service can provide protection for the use of equipment.

Completeness of technical data: check whether the technical data of the equipment is complete, including operation manuals, programming manuals, maintenance manuals, circuit diagrams, etc., complete technical data will help you better use and maintain the equipment.

Eight, price and cost-effective

Market price research: before purchasing, the market of the same model, the same configuration of the second-hand Dimond spark machine price research, to understand its approximate price range, to avoid losses due to asymmetric price information.

Cost-effective assessment: Considering the performance, quality, service life, configuration and other factors of the equipment, assess its cost-effective, not just the price as the only selection criteria, sometimes the price is a little higher but better performance of the equipment may be more investment value.