The importance of CNC machine tool overhaul
CNC machine tool maintenance: a guarantee of optimal performance
The maintenance and overhaul of CNC machine tools should not be confused with their repair. While repair is requested by the customer when a machine malfunctions, causing an emergency that could also lead to a halt in production, an overhaul is a scheduled or planned intervention conducted in agreement with a technological partner. During an overhaul, the machine is completely disassembled, and each individual component is carefully analysed and, if necessary, replaced or repaired. Regular overhauls are essential to ensure efficiency, precision and longevity of CNC machines. This preventive and proactive approach enables the resolution of minor issues before they cause serious damage.
What is retrofitting?
Retrofitting is a process that involves transforming or upgrading the existing machinery by replacing outdated and worn-out CNC components, drives and motors with the latest and state-of-the-art ones. Retrofitting CNC machines makes it possible not only to bring the system's performance back to its original state but also to improve it, eliminating the need for customers to purchase new machinery. For obsolete systems, retrofitting allows CNC machine tools to compete with more current ones in terms of productivity and precision.
Revamping for CNC machine renewal
The term "revamping" is frequently used to describe the process of reconstructing or renovating machine parts or entire industrial plants. What does it entail? It is a maintenance operation that focuses on overhauling mechanical parts of the plant and, in some cases, even electronic control systems in order to achieve various goals, such as making the working environment safer, improving efficiency and rejuvenating the plant. Revamping includes both electromechanical and software interventions to extend the productive life of a CNC machine that is either about to become obsolete or has already become obsolete.
Spindle and electro-spindle overhaul
Spindles and electro-spindles are critical components of a CNC machine tool. They play a key role in ensuring precision and efficiency and are, unfortunately, often subject to wear and damage. This is why, if not monitored or overhauled on a regular basis, they have the potential to cause machine downtime or even more severe malfunctions. Performing overhauls at appropriate intervals allows for predicting the degradation of these components and consequently planning repairs or replacements in advance, thus avoiding future repair costs.
CNC machine tool overhaul services in Reggio Emilia
Are you looking for a reliable technological partner to overhaul and service your CNC machine tools? Then look no further than Assistec! Schedule regular overhauls of your equipment with us. We provide services like mechanical or electronic maintenance, repair of axis drives, spindles and motors, as well as the sale of spare parts (fuses, batteries and equipment for electrical cabinets). For more than 20 years, we have been developing and perfecting the best solutions to provide a comprehensive, all-round service capable of optimising the performance of any company's machine fleet, covering multiple brands such as Fanuc and Mitsubishi.
Don't wait for a breakdown; be proactive in solving potential issues! Contact us or call +39 0522989436 for more information. One of our operators will contact you with a personalised offer.
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Technical support for Mazak machines: on-site electronic and mechanical repairs
Mazak machine tools are found in numerous workshops and production departments and, particularly in the case of machines that have been in operation for several years, may require electronic and mechanical repairs to resolve faults, malfunctions or issues related to component wear.
However, a machine stoppage does not always allow the root cause of the problem to be identified immediately.
A fault may affect the control system, a drive or an electronic component, but it may also be due to mechanical elements, the tool changer, the pallet changer system or the machine’s geometric conditions.
For this reason, the ability to carry out an analysis directly at the customer’s premises allows us to assess the machine’s actual behaviour and identify the necessary intervention.
Assistec provides on-site electronic and mechanical support services, including for Mazak machines fitted with Mazatrol 640 and Mitsubishi M64 control systems, drawing on the expertise it has developed in servicing multi-brand CNC machine tools.
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PLC logic for machine safety is one of the areas that may require attention when an existing machine tool has outdated or inadequate safety functions, or when these functions are no longer suitable for the machine’s current configuration.
However, improving machine safety is not simply a matter of modifying a few lines of PLC code. The process must begin with a risk assessment, followed by identifying the required safety functions, checking the devices already installed and determining how they should interact with the PLC, drives, sensors, interlocks and machine components.
On CNC machine tools, changes to PLC logic may be required, for example, to correctly manage automatic doors, permissive signals, stopping functions, protective devices or newly integrated automation systems.
For this reason, modifying PLC logic should be considered part of a broader machine safety and functional verification process, rather than an isolated software task.
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The CNC spindle is one of the most important elements of a machine tool: it is the component that transmits motion to the tool and, together with the machine’s other systems, determines precision, machining quality and production reliability.
When a spindle begins to show signs of wear, the problem is not limited to the component itself. Abnormal vibrations, loss of precision or increased noise levels can, in fact, compromise the entire production process, leading to scrap, premature tool wear and unscheduled machine downtime.
For this reason, the overhaul of CNC spindles should not be regarded as a simple repair job, but as a technical operation aimed at restoring the spindle to its original operating condition and ensuring stability and precision once again.
Relying on a professional service allows the real causes of the problem to be identified, worn components to be replaced and more serious faults that could halt production to be prevented.
