Next Generation Standard Chuck BR series

Kitagawa's standard chucks is now in a new era.
Gripping accuracy of 0.01mm T.I.R.※3 or less immediately after jaw forming
Reduced jaw-lift provides stable machining quality.
Use of optional "Tnut-Plus" maintains gripping accuracy of 0.01mm T.I.R.※3 or
less even after detaching and attaching formed jaws.
No jaw reforming is required.

Gripping accuracy of 0.01mm T.I.R.※3 or less that breaks
conventional common sense of standard chucks※１

Gripping accuracy of 0.01mm T.I.R.※3 or less immediately after jaw forming
Unprecedented high gripping accuracy of standard chuck is also suitable for finish machining.

Gripping accuracy of 0.01mm T.I.R. or less that breaks conventional common sense of standard chucks

Use of the optional "Tnut-Plus" eliminates
the need for jaw reforming.

No reforming required

Gripping accuracy 0.01 mm T.I.R.※3 or
less even detaching and attaching formed jaws.※1

Due to high mounting repeatability of jaws the gripping accuracy right after
jaw forming can be perfectly maintained.

Saving 450 man-hours per year = 1.35 million yen cost down

Eliminating jaw-reforming shortens setup changing time substantially.

Estimated annual cost reduction

Kitagawa standard soft jaws (SJ) are usable

Due to high accuracy of jaw mounting expensive special jaws are not needed.
Kitagawa standard soft jaws (SJ) can be used and it is economical and accessible. ※2

Stable machining quality

Reduced jaw-lift provides stable machining quality.

Stable machining quality

Easily replaceable with the chucks currently in use

It can be easily replaced with Kitagawa B-200 and BB200 series currently in use.
Continued use of the currently used rotary hydraulic cylinder allows you to
implement the best performance at the lowest cost.

Checking parts needed for replacement
  • Gripping accuracies immediately after jaw forming and after jaw detach and attach are according to our product standard. The amount of deflection of the test bar at 10 mm from jaw top when the test bar is gripped by the designated soft jaws.
  • The repeatability of Tnut-Plus installation can only be achieved with our designating soft jaws. Using a third-party jaw not only degrades gripping accuracy, but may also lead to seizing of the sliding surface of the chuck and damage to parts.
  • Only for BR12, the gripping accuracy is 0.015mm T.I.R.
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