Support

Preventative Maintenance

CNC machinery represents a major investment for your company. In order to keep your machines in good working order and avoid costly downtime, Mitsui Seiki USA recommends that our customers implement a yearly Preventative maintenance program.

Unlike a distributor network or machine tool repair company that service many different machine tool manufacturers and types of machines.



Mitsui Seiki service Engineers only preform services on Mitsui Seiki machine tools. This allows our service team to be focused on only our products. Our staff of Mitsui Seiki specialists are factory trained professionals that can quickly troubleshoot and maintain all of our machinery including Mitsui Seiki Machining centers, Jig Boring and Jig grinding machines as well as our thread grinding machines.

What options do you have for your preventative Maintenance program?

Our customers require different services for their preventative maintenance program based on their part requirement and production schedules therefore we offer 3 levels of service packages to choose from:

Basic Service package A (3 days):
  • Electrical check
  • Pneumatic and Hydraulic system check and adjustment
  • Axis Deceleration and hard limit check
  • all axis motion checks
  • Full NC and PC control parameter backups
  • All necessary Oil and filter changes (customer to supply oils and filters)
  • After the service is completed you will receive an inspection report, a recommended spare parts list as well as a list of items that will need to be repaired in the future
Mid-level Service Package B (4 days):
  • Electrical check
  • Pneumatic and Hydraulic system check and adjustment
  • Axis Deceleration and hard limit check
  • all axis motion checks
  • Full NC and PC control parameter backups
  • All necessary Oil and filter changes (customer to supply oils and filters)
  • After the service is completed you will receive an inspection report, a recommended spare parts list as well as a list of items that will need to be repaired in the future
  • Geometric Accuracy Inspection using Mitsui Seiki USA equipment (with Minor adjustments included)
  • Accuracy report and suggested corrective plan for machines that may be out of factory tolerance
Full Service Package C (5 days):
  • Electrical check
  • Pneumatic and Hydraulic system check and adjustment
  • Axis Deceleration and hard limit check
  • all axis motion checks
  • Full NC and PC control parameter backups
  • All necessary Oil and filter changes (customer to supply oils and filters)
  • Geometric Accuracy Inspection using Mitsui Seiki USA equipment (with Minor adjustments included)
  • Accuracy report and suggested corrective plan for machines that may be out of factory tolerance
  • After the service is completed you will receive an inspection report, a recommended spare parts list as well as a list of items that will need to be repaired in the future
  • Automatic pallet changer and automatic tool changer alignment
  • Total machine running and function test


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Machine tool laser and Ball bar calibration Option
(2 additional days required):


In order to maintain the highest level or accuracy and repeatability for your equipment, Machine performance measurement and diagnosis is essential to establish a known and repeatable level of process capability for any machine tool.

By choosing this option you can establish a baseline of your equipment during the first calibration then be able to compare the results taken on a yearly basis to diagnose any wear with the axis drive systems.

Mitsui Seiki USA offers Machine tool calibration services to complement our Preventative maintenance program. We use the latest Laser interferometers and Ball bar systems to check and adjust your machinery. This service is an additional option that can be purchased with our service packages B and C.