Application Specific Machine Tools

At Mitsui Seiki, we engineer precision solutions that redefine excellence in the manufacturing industry. With a legacy of innovation and an unwavering commitment to quality, we empower global leaders to achieve unmatched performance in the most demanding applications.

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Aerospace

Aerospace

  • Aero Structure
  • Power Systems
  • Rotating Power Systems
  • Non-rotating
  • Landing Systems
Mold Die

Mold & Die

  • Plates
  • Cores & Cavities
  • Tooling
Ultra Precision Parts

Ultra Precision Parts

  • Semi-conductor
  • Compressor
  • Precision Machinery

Crafting Excellence, Defining Precision

At Mitsui Seiki (U.S.A.), Inc., our exceptional team partners with the world’s most progressive companies in aerospace, automotive, optics, and more. With highly skilled engineers and dedicated support, we deliver sophisticated, customized machine tool systems that meet the highest standards of precision and innovation.

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Outer Building - Mitsui Seiki

Automation

At Mitsui Seiki, we make any automation possible. Whether it’s process automation, quality control, material handling, or tooling management, our machines are engineered to integrate seamlessly with advanced automation systems. From the simplest setups to the most complex, fully automated cells, we provide the technology and expertise to optimize efficiency, precision, and productivity at every stage.

Automation

Service & Maintenance

At Mitsui Seiki, we understand that maximizing uptime is critical to your operation’s success. That’s why our highly trained technicians provide comprehensive support, from routine maintenance to troubleshooting and repairs. With in-depth knowledge of each machine type and a deep understanding of your specific system, we ensure your equipment operates at peak performance.

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Service & Maintenance

The James Webb Space Telescope Success Story

Northrop Grumman was the prime contractor for the JWST. In 2004, the contractor responsible for the mirror, Axsys Technologies, selected Mitsui Seiki to supply the machine tools needed to produce the JWST’s mirror segments.

Latest News & Events

Extreme Accuracy

Jan 2024

Smart Talk with Machine Tool Partners Takes Flight

Nov 2023

Preventative Maintenance is Key to Profitability

Oct 2023

The James Webb Space Telescope

Sep 2023
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IMTS 2024

Sep 9, 2024
Sep 14, 2024

IMTS 2022

Sep 12, 2022
Sep 17, 2022

Machine Tool Roundtable

Jun 24, 2021

JIMTOF2020

Nov 16, 2020
Nov 27, 2020
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Exhibition Stand - Mitsui Seiki

Our Upcoming Events

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Mitsui Seiki machines are trusted by

ITP Aero MTU Aero Engines Rolls Royce General Electric EATON Sikorsky Draper GKN Pratt & Whitney Collins Aerospace
After Support

Customer & After Sales Support

Our expert technicians provide comprehensive support and tailored maintenance to keep your machines operating at peak performance. With our proactive care, we minimize downtime and ensure your production runs smoothly. Learn more
Careers

Work With Us

Join Mitsui Seiki and be part of a team that sets the standard in precision engineering. We offer exciting career opportunities where your skills and innovation drive the future of advanced manufacturing. Learn more