Mold correction step
1μm
e.g. lens barrel parts for cameras and projectors
Correcting in 1 µm steps
to stay ahead of shrinkage
We predict shrinkage and warpage with flow analysis and correct the mold based on measured data
See our correction technology
METI nano-machining ultra-precision mold development project
3 times awarded
2003, 2006 and 2009
Nano-level ultra-precision machining
Mold inserts for lenses and other optical elements are machined in vibration-isolated, temperature-controlled booths and verified with ultra-precision measuring instruments
See ultra-precision machining
Joint research on ultra-precision molds
with the University of Tokyo and RIKEN
- Joint ResearchUniversity of Tokyo, Chubu University and RIKEN (industry-academia development of nano-level ultra-precision molds)
- 2017Selected as a "Regional Future Driving Company" by METI
- 2010Excellence Award, "Courageous Management Award" by the Tokyo Chamber of Commerce and Industry
- 2006Selected as one of the "300 Vibrant Manufacturing SMEs" by the Small and Medium Enterprise Agency
75 years since our founding
From Togoshi, Shinagawa to 5 sites in Japan and abroad
- Began making precision
plastic molds in
Togoshi, Shinagawa1950 - Built the head office factory
in Nakahara-ku, Kawasaki1980 - Opened the Niigata Factory1991
- Started production
in Wuxi, China2006 - Established a subsidiary
in the Philippines2017 - 75th anniversary2025
- Mold size
- Clamping force 15–280 t
class machines - Precision
- 1 µm-level correction,
measurement data provided - Materials
- Super engineering,
engineering, commodity resins / Magnesium alloy - Mold repair & transfer
- Repair and transfer of
molds made by others - Mold tryout
- In-house molding machines: 5
(15–180 t)
Business
Mold Design & Manufacturing
Volume Molding, Painting, Printing & Assembly
Ultra-precision machining
Mold Tryout & Low-Volume Production
Mold Repair & Transfer of Molds from Other Makers
Product Development & Consultation
For precision parts machining, visit fa-parts-machining.comWith the know-how and equipment built up through mold making, we handle everything from general to ultra-precision machining, for any industry, shape or material.
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Why Nagatsu
Molding complex shapes in a single shot
With internal and multi-directional slides and well-designed cooling, we build molds that form even difficult shapes, such as parts with internal moving mechanisms, in a single molding cycle
From design to volume production, all in-house
Mold design and manufacturing, tryout, volume molding, painting and assembly — and what we learn in production goes into the next mold design
Measured and verified at every step
We measure at every process with precision CMMs, roundness testers and other instruments, so defects never move on to the next process
Send us a drawing.
Request a Quote
You can consult us even before you have a drawing. We can also sign an NDA first.