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 servicing to resolve faults, malfunctions or issues related to component wear.

However, a machine stoppage does not always allow the source 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 makes it possible to assess the machine’s actual behaviour and identify the necessary action.

Assistec carries out on-site electronic and mechanical servicing, including on Mazak machines fitted with Mazatrol 640 and Mitsubishi M64 controls, drawing on the expertise developed through servicing multi-brand CNC machine tools.

Mazak machine servicing: when might servicing be required?

A CNC machine can experience a wide variety of problems.

In some cases, the machine stops suddenly, preventing production from continuing. In others, however, the machine continues to operate but faults begin to appear, such as a loss of precision, problems during certain sequences, or signs of wear and tear that require inspection.

Situations in which Assistec’s support service can intervene include:

  • drive failures or faults;
  • the need to replace drives;
  • accidental jams during tool change;
  • malfunctions during pallet change;
  • issues with machine precision or geometry;
  • inspection of the condition of the turrets;
  • inspection of the condition of guides and slides.

Mazak Electronic Support: inspection and repair of drives

Drives are essential components for the operation of a CNC machine tool, as they control the movement of the axes and the spindle.

A fault in the drive can trigger alarms, cause irregular operation or bring the machine to a complete standstill.

In such cases, the first step is to correctly identify the cause of the problem and determine whether the component requires repair or needs to be replaced.

Assistec provides electronic servicing for CNC machine tools, working on axis and spindle drives, motors and electronic components.

When a component requires specific attention, the field service can also be supported by the in-house electronic repairs workshop, which also specialises in repairing Mitsubishi equipment.

Tool-change and pallet-change jams: what to check

Another situation that may require assistance involves accidental jams during the machine’s automatic sequences.

Tool change and pallet change involve various components and must take place in a precise sequence. When a stage is not completed correctly, the machine may stop and prevent the cycle from continuing.

In such cases, simply unblocking the system is not enough.

It is necessary to ascertain what prevented the sequence from being completed and to check the behaviour of the components involved, so as to identify the cause of the fault and restore the machine to correct operation.

Carrying out the inspection on site allows the technician to analyse the machine in its actual configuration and to reconstruct the conditions under which the stoppage occurred.

Mazak mechanical servicing: geometries, turrets, guides and slides

Not all problems with a machine tool are down to the electronics.

Wear, play and geometric changes can affect machining accuracy and, over time, compromise the machine’s performance.

For this reason, servicing on Mazak machines may also include mechanical checks.

Assistec carries out mechanical servicing on multi-brand machine tools, with activities including geometric checks and dynamic tests to verify the machine’s performance and accuracy.

On Mazak machines covered by the service, it is possible to check the following in particular:

  • machine geometry;
  • condition of the turrets;
  • condition of the guides;
  • condition of the slides.

This inspection allows the actual condition of the components to be assessed and determines whether the fault detected may be linked to wear, play or a deviation from the specified geometric conditions.

Why electronics and mechanics must be assessed together

On a CNC machine tool, electronics and mechanics function as parts of a single system.

An alarm or a shutdown does not necessarily, on its own, identify the cause of the problem. Similarly, a loss of precision may require checks involving several machine components.

The ability to intervene from both an electronic and a mechanical perspective therefore allows the diagnosis to be carried out by considering the machine’s overall behaviour.

This is the same approach underpinning Assistec’s CNC machine tool support service, which combines electronic and mechanical expertise to manage faults and machine downtime.

Which Mazak control systems does Assistec service?

Service for Mazak machines is carried out according to the machine’s configuration and the control system installed.

Assistec currently services machines equipped with:

  • Mazatrol 640;
  • Mitsubishi M64.

The service is aimed in particular at machines that are not of the latest generation, on which the experience gained by Assistec’s technicians enables them to carry out electronic and mechanical repairs directly at the customer’s premises.

Before scheduling a visit, it is therefore important to correctly identify the machine, model, CNC system installed and the fault encountered, so that the feasibility of the repair can be assessed in advance.

Mazak support directly at your premises

When a machine breaks down or experiences a precision issue, carrying out repairs directly on site allows us to analyse it under its actual operating conditions.

Assistec technicians carry out on-site visits to customer premises to check for electronic and mechanical faults, identify the cause of the problem and determine the necessary repairs.

For Mazak machines fitted with Mazatrol 640 or Mitsubishi M64, the service may include work on the drives, checking for accidental jamming of the tool-changing and pallet-changing systems, geometric checks, and inspection of the condition of turrets, guides and slides.

To request a preliminary inspection, please provide the machine model, the CNC system installed, any alarms displayed and a description of the problem encountered.

Contact Assistec to check whether we can service your Mazak machine and to arrange on-site technical support.

Recent Posts


  • 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.

  • 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.

  • 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.