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Machine Tool

High Precision, Ultra-large Through-hole, High-speed Power Chuck
BR series

The standard has evolved.

BR seriesズーム

BR series

  • Gripping accuracy of 0.01 mm T.I.R. or less
  • Reduced jaw-lift
  • Interchangeable with Kitagawa B-200 and BB200 series
  • With Tnut-Plus optional dedicated T-nuts, the repeatability of jaws at detaching and attaching is 0.01 mm T.I.R. or less

*CE correspondence

Note 1) The gripping accuracy is the Total Indicator Reading of a test bar right after forming jaws to grip a test bar.

Note 2) The repeatability is the Total Indicator Reading of a test bar measured by detaching the formed jaws from the chuck and mounting them again in the same position.

Note 3) Both gripping accuracy and repeatability are the T.I.R. of a test bar at 10 mm above from Kitagawa standard soft jaw.

All the above criteria are based on our internal regulations.


PAT 6345375

PAT 6345321


BR chuck special site

Product Specifications

ModelBR06BR08BR10
Through-hole (mm) 53 66 81
Gripping Range (mm)Max. 170 210 254
Min. 16 22 31
Jaw Stroke (Diameter) (mm) 5.5 7.4 8.8
Plunger Stroke (mm) 12 16 19
Max. Draw Bar Pull Force (kN) 23 35 49
Max. Static Gripping Force (kN) 58.5 90 123
Max. Speed (min-1) 6000 5000 4500
Dynamic Gripping Force at Max. Speed (kN) 22.5 36 44
Moment of Inertia (kg・m2) 0.052 0.14 0.32
Net Weight (kg) (with Soft Top Jaws) 12.8 22.2 35.8
Matching Cylinder SR1453C
SS1453K
SR1566C
SS1666K
SR1781C
SS1881K
Matching Soft Jaws
Note) Jaw-mounting bolts are not included.
Standard
Extra Tall
Standard
Extra Tall
Standard
Extra Tall
Matching Hard Jaws
Note) Jaw-mounting bolts are not included.
HB06A1
HB06B1
HB08B1
HB08N1
HB10AA1
Tnut-Plus
(Option)
TN06PLUS TN08PLUS TN10PLUS
Outline Drawing2DPDF
DXF
DWG
3DParasolid
STEP

Note) The 3D data includes two types of the positions of the jaws for both Parasolid and STEP: open end (UC) and closed end (OC).

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