"The hardest cuts" are where our work begins.
At Tsuchiya Seiko, we employ our signature "Unmanned Single-Shot Method" to
produce difficult-to-machine, small-diameter stainless steel components with unmatched precision.
Since our founding in 1961, we have been producing ultra-precision valve parts
for semiconductor manufacturing equipment with a degree of accuracy unrivaled in our field.
Component specifications are converted to custom programs used by our Sliding Headstock CNC Swiss Lathes,
achieving dimensional accuracy within as little as 0.001mm. Each and every inquiry from our customers
is met with our committed dedication to "the fundamentals done right."