We are
a metal parts manufacturer
specializing in
“ultra-precision cutting.”

Our advantages

Our ultra-precision cutting technology cultivated in the field of optics
achieves a high degree of precision as per the required standard.

We achieve high precision
by combining our skilled craftsmanship
with the latest equipment.

  • 1.Advanced metal cutting know-how accumulated over 70 years.
  • 2.Can accommodate tolerances from 1/100mm to 1㎛ (1/1000mm).
  • 3.Minimize the impact on quality by optimizing process integration, etc..
  • 4.We design and develop special jigs and tools in-house,
    and thoroughly pursue accuracy.
  • 5.Completely removes burrs etc..

We are confident in our ability
to manufacture prototypes for you!

  • ・Achieves high precision that is
     faithful to product design drawings and fitting parts.
  • ・Our specialized team
     will verify and propose the optimal processing method.
  • ・Pursuing optimization of the number of processes
     to improve quality and shorten delivery times.

We aim to start mass production in about 4 months.

In particular, we will focus on prototyping and aim to shorten the overall period.

Please feel free to contact us
in case you happen to have
any troubles with prototype manufacturer.

Product Summary

Applying the technology accumulated and experienced
in the optical system industry to other industries.

  • ・Single-lens reflex camera.
  • ・High-performance cameras
    such as cinema cameras.
  • ・Large projector parts.
  • ・Medical equipment.
  • ・Security cameras.
  • ・Various scopes.
  • ・Industrial equipment
    such as semiconductors.
  • ・Transportation equipment connector
  • ・General electrical products.

etc.

Compatible with a
wide range of processing

Our ultra-precision cutting technology cultivated in the field of optics achieves a high degree of precision as per the required standard.

Lathe cutting

Lathe cutting

Machining cutting

Machining cutting

Complex Lathe Processing

Complex Lathe
Processing

Helicoid

Helicoid

knurling

knurling

Slotter cutting

Slotter cutting

We provide one-stop supply
from various special processing
to Anodizing, etc..

Alumite

Anodizing

Painting

Painting

Gear cut

Gear cut

Sculpture

Engraving

Flocking

Flocking

Press working

Press working

Company Profile

  • company profile photo
  • company profile photo
  • company profile photo

About Us

Company Name
KAWAI Koki inc.
CEO
Miyoto Kawai
Founded
1951
Address
3346 Miyada Village, Kamiina District, Nagano Prefecture , Japan
Main processed products
  • Camera interchangeable lens mirror frames, cam tubes
  • Helicoid
  • Lens mount
  • Body Mount
  • Projector lens mirror frame
  • Surveillance camera mirror frame
  • Scope Parts
  • Connector Parts
  • Surveying instrument parts
  • Medical device parts
  • Semiconductor and other equipment parts

Contact