CNC Rotary Table
BRNC - 255A • 320A • 40A • 500
Feature
  • Worktable diameter Ø255, Ø320, Ø400, Ø500mm.
  • Motor is mounted at right.(Vertical & Horizontal applications)
  • Exclusive dual lead worm drive.
  • Wholly circular hydraulic clamping system.
  • Big bore rotary table.

Equipped with axial/radial bearings.

  • B
  • R
  • NC
    • -
  • 40A
    • -
  • □
  1. Hydraulic system
    Big bore
  2. 0.001° Positioning
  3. Servo control
  4. Table diameter
  5. Motor cover
    N：Shortened
Specifications / Model Unit BRNC-255A BRNC-320A BRNC-40A BRNC-500
Worktable Diameter mm Ø255 Ø320 Ø400 Ø500
Table Height Horizontal mm 200 235 250 300
Center Height Vertical mm 160 210 255 310
Overall Height mm 305 380 465 560
Center Bore Diameter mm Ø100H7 Ø120H7 Ø180H7 Ø220H7
Through-Hole Diameter mm Ø100 Ø120 Ø180 Ø220
Width Of T-Slot mm 12H7 14H7 14H7 18H7
Width Of Guide Block mm 18h7 18h7 18h7 18h7
Minimum Input Increment deg. 0.001° 0.001° 0.001° 0.001°
Indexing Accuracy sec. 20" 20" 20" 20"
Repeatability sec. 4" 4" 4" 4"
Servo Motor
(Model As Required)		 FANUC αiF 8 αiF 12 αiF 12 αiF 12
MITSUBISHI HF/HG-154S HF/HG-204S HF/HG-204S HF/HG-204S
SIEMENS 1FK7063 1FK7083 1FK7083 1FK7083
HEIDENHAIN QSY116E QSY155B QSY155B QSY155B
Speed Reduction Ratio 1/120 1/120 1/180 1/180
Max. Table Rotation Speed r.p.m 25 25 16.6 16.6
Allowable Turntable Torque N.m (kgf.m) 568(58) 784(80) 1715(175) 2508(256)
Pressure (Clamping System) kg/cm2 35 (Hyd.) 35 (Hyd.) 35 (Hyd.) 35 (Hyd.)
Clamping Torque N.m (kgf.m) 686(70) 1176(120) 1764(180) 2450(250)
Allowable Load Capacity Vertical
kg 200 225 240 320
Horizontal
kg 640 750 800 960
With Tail-Stock
kg 400 450 480 640
MAX.Thrust Load
(Table is clamped)		 Axial force
N (kgf) 25000
(2551)		 30000
(3061)		 35000
(3571)		 40000
(4081)
Radial moment
N.m (kgf.m) 686
(70)		 1176
(120)		 1764
(180)		 2450
(250)
Tilting moment
N.m (kgf.m) 3200
(326)		 4000
(408)		 5000
(510)		 8000
(816)
Allowable Inertia Force J=W.D2/8
kg.m2
(kg.cm.sec2)		 5.2
(53.08)		 9.6
(97.96)		 16
(163.2)		 30
(306)
Net Weight (Motor Excluded) kg 100 180 270 400
Dimensions

Note：

  1. "N" means shortened motor cover, please contact us for shortening drawing if necessity.
Dimensions
BRNC-255A
BRNC-320A
BRNC-40A
BRNC-500
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