Mitsui Seiki

Mitsui Seiki Manufacturer of ultra precise jig borers, horizontal machining centers, vertical machining centers, jig grinders, thread grinders They have to be.

Organization
Mitsui Seki (U.S.A.), Inc. employs a staff of individuals who are exceptional in their areas of expertise. The most progressive companies in the world use our lines of sophisticated machine tools. These clients employ the “best and the brightest” in such fields as aerospace and jet propulsion, commercial aviation, compressors, automotive, capital machinery, optics, mold & die, and ge

neral precision component manufacturing. First and foremost, our team is highly engineering-oriented – even our executives – as most of our customers require high-end, customized machine tool systems. It is of paramount importance that all of our personnel in direct contact with our clients understand our technology. Even more so, we must fully understand our customers’ needs from both a technical and a business standpoint. We have degreed engineers from highly regarded technical institutions to focus on even the minute details of an application and the corresponding machine and commercial solution. Likewise our service and support technicians are thoroughly and continually trained in each particular machine type and are also knowledgeable about each customer’s specific system. Often, our solutions are sophisticated, and represent a significant investment for our customers. In many cases, we provide a staff person to work on site from time of installation until the end user is completely comfortable with the day-to-day operation and functionality of the Mitsui Seiki machine, cell, or multi-machine system. Bottom line – smart people have to build and maintain the most sophisticated, precise machine tools on the planet. Our customers must have these individuals, and we are proud they are on our team.

In a world of average machining, stand out. Choose Mitsui Seiki.Hand-scraped way surfaces, 3-point bed construction and ...
06/04/2026

In a world of average machining, stand out. Choose Mitsui Seiki.

Hand-scraped way surfaces, 3-point bed construction and highly rigid bed and column castings - all designed for total precision and long-term accuracy. 🏆

Want a few fun facts about our main factory in Kawajima, Japan?➡️ 𝗧𝗵𝗲 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗶𝘀 𝗮𝗻𝗰𝗵𝗼𝗿𝗲𝗱 𝗶𝗻𝘁𝗼 𝗯𝗲𝗱𝗿𝗼𝗰𝗸 𝘄𝗶𝘁𝗵 𝗽𝗶𝗹𝗶𝗻𝗴𝘀 𝗼𝘃𝗲...
06/02/2026

Want a few fun facts about our main factory in Kawajima, Japan?

➡️ 𝗧𝗵𝗲 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗶𝘀 𝗮𝗻𝗰𝗵𝗼𝗿𝗲𝗱 𝗶𝗻𝘁𝗼 𝗯𝗲𝗱𝗿𝗼𝗰𝗸 𝘄𝗶𝘁𝗵 𝗽𝗶𝗹𝗶𝗻𝗴𝘀 𝗼𝘃𝗲𝗿 𝟯𝟬 𝗺𝗲𝘁𝗿𝗲𝘀 𝗱𝗲𝗲𝗽
➡️ 𝗜𝘁 𝗳𝗲𝗮𝘁𝘂𝗿𝗲𝘀 𝗵𝗲𝗮𝘃𝗶𝗹𝘆 𝗿𝗲𝗶𝗻𝗳𝗼𝗿𝗰𝗲𝗱 𝗳𝗹𝗼𝗼𝗿𝘀 𝘂𝗽 𝘁𝗼 𝟭.𝟮 𝗺𝗲𝘁𝗿𝗲𝘀 𝘁𝗵𝗶𝗰𝗸 𝗶𝗻 𝗸𝗲𝘆 𝗮𝗿𝗲𝗮𝘀
➡️ 𝗧𝗲𝗺𝗽𝗲𝗿𝗮𝘁𝘂𝗿𝗲 𝗶𝘀 𝗵𝗲𝗹𝗱 𝗮𝘁 𝟮𝟬°𝗖 ±𝟬.𝟱° & 𝗵𝘂𝗺𝗶𝗱𝗶𝘁𝘆 𝗮𝘁 𝟱𝟱% ±𝟬.𝟱%

And we can't forget the cherry blossoms outside. It's truly the world’s premier facility for precision machine tool production!

Since 1966, we've grown to become the world’s dominant builder and supplier of thread grinding machines. 🗺️Today, our ra...
06/01/2026

Since 1966, we've grown to become the world’s dominant builder and supplier of thread grinding machines. 🗺️

Today, our range covers everything from small precision components through to large-scale parts like ball screws, feed screws, worm shafts and rotors.

That includes OD grinders for a wide range of part sizes, ID grinders for internal applications like nuts and housings and dedicated thread measuring and inspection machines for ultra-precise verification.

Producing machines capable of performing in the 1µm range starts long before the machining process itself...This area of...
05/28/2026

Producing machines capable of performing in the 1µm range starts long before the machining process itself...

This area of our factory is where accuracy is verified to an even higher standard, using advanced measurement technology including laser-lead measuring instruments, CMM equipment, roundness measuring systems, surface roughness testers and universal microscopes.

It’s one of the most tightly controlled environments in the factory. 👀

05/27/2026

The HU-5X Trunnion Series is built for manufacturers taking on complex, high-precision machining.

Designed for demanding industries, its 5-axis capability allows intricate parts to be machined in a single setup with exceptional accuracy and surface finish.

With a rigid trunnion design, high-performance spindle technology and reliable thermal stability, the HU-5X delivers the consistency and repeatability needed for challenging applications - while helping reduce setup times and improve overall productivity. 🙌

Collins Aerospace, part of RTX, is expanding its Largo, Florida facility with a $26.5 million investment, building on mo...
05/26/2026

Collins Aerospace, part of RTX, is expanding its Largo, Florida facility with a $26.5 million investment, building on more than two decades of operations at the site.

The expansion will create around 100 new high-skill jobs and bring more radar manufacturing, integration and testing activities under one roof.

Read the full story: https://bit.ly/4dpgCgH

We work closely with Collins, supplying our bespoke machine tool solutions, so it's good to see continued development in advanced aerospace manufacturing and technologies. 🙌

Most people only think about their machine when something goes wrong.But the reality is, performance doesn’t drop off al...
05/22/2026

Most people only think about their machine when something goes wrong.

But the reality is, performance doesn’t drop off all at once - it drifts. Small changes in accuracy, wear in key components, things you don’t always notice day to day… until they start costing time and money.

That’s why a yearly Preventive Maintenance programme goes beyond routine servicing - helping ensure your machine continues to deliver the performance you rely on. 🤝

Explore your options: https://bit.ly/40Ulg07

Pratt & Whitney has invested $4.7 million into expanding its Springdale facility.The 7,000 sq ft expansion adds addition...
05/21/2026

Pratt & Whitney has invested $4.7 million into expanding its Springdale facility.

The 7,000 sq ft expansion adds additional space for engine case repairs and introduces new equipment to support Geared Turbofan additive manufacturing repairs, helping reduce process times by more than 60%.

Read the full story: https://bit.ly/4nHyaYV

This investment is one of several across the U.S., alongside major expansions in Irving, Texas and West Palm Beach, Florida.

For Pratt & Whitney, who we proudly supply our bespoke machine tool solutions to, this is great news, strengthening both their commercial position and operational performance. 🙌

The VL50 has built a strong reputation as a reliable, high-precision 5-axis machine, and for good reason.From its linear...
05/20/2026

The VL50 has built a strong reputation as a reliable, high-precision 5-axis machine, and for good reason.

From its linear motor axis drives to the hand-finished components that ensure geometric accuracy, every element is designed to deliver consistent results.

Whether working with metallics or graphite, it offers high-speed contouring and excellent surface finishes, even on more challenging materials. 🙌

Address

563 Commerce Street
Franklin Lakes, NJ
07417

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

(201) 337-1300

Alerts

Be the first to know and let us send you an email when Mitsui Seiki posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Mitsui Seiki:

Share