Big Hole/Heavy Duty CNC Rotary Table
Equipped with axial/radial bearings

BRNC-255A     BRNC-40A
BRNC-320       BRNC-500

BIG HOLE CNC ROTARY TABLE

  • Worktable diameter 255, 320, 400, 500mm
  • Motor is mounted at right
  • Exclusive dual lead worm drive.
  • Wholly circular hydraulic locking system
  • Big hole rotary table
Item instruction
  • BRNC-255A
  • BRNC-320
  • BRNC-40A
  • BRNC-500
BRNC-255A
Specifications / ModelExplanation Unit BRNC-255A
Worktable Diameter Ømm Ø255
Table Height Horizontal mm 200
Center Height Vertical mm 160
Overall Height mm 305
Center Bore Diameter Ømm Ø100H7
Through-Hole Diameter Ømm Ø95
Width Of T-Slot mm 12H7
Width Of Guide Block mm 18H7
Minimum Input Increment deg. 0.001°
Indexing Accuracy sec. 20"
Repeatability sec. 4"
Servo Motor
(Model As Required)
FANUC   aiF 8
MELDAS   HF-154S
Speed Reduction Ratio   1/120
Table Rotation Speed r.p.m 25
Allowable Inertia Force kg-cm-sec2 12.3
Allowable Turntable Torque kg-m 48
Drive Pressure / Method kg/cm2 35 (Hyd.)
Clamping Torque kg-m 50
Allowable Load Capacity Vertical kg 200
Horizontal 640
Tail-Stock Used 400
Allowable Workpiece Diameter Ømm Ø255
Net Weight (Motor Excluded) kg 100
Note:
1."N" means shortened motor cover, please contact us for shortening drawing if necessity.
2."A" means high-load design (Equipped with radial and axial bearing).
BRNC-320
Specifications / ModelExplanation Unit BRNC-320/320N
Worktable Diameter Ømm Ø320
Table Height Horizontal mm 222
Center Height Vertical mm 210
Overall Height mm 385
Center Bore Diameter Ømm Ø100H7
Through-Hole Diameter Ømm Ø100
Width Of T-Slot mm 14H7
Width Of Guide Block mm 18H7
Minimum Input Increment deg. 0.001°
Indexing Accuracy sec. 20"
Repeatability sec. 4"
Servo Motor
(Model As Required)
FANUC   aiF 12
MELDAS   HF-204S
Speed Reduction Ratio   1/180
Table Rotation Speed r.p.m 16.6
Allowable Inertia Force kg-cm-sec2 38.5
Allowable Turntable Torque kg-m 78
Drive Pressure / Method kg/cm2 35 (Hyd.)
Clamping Torque kg-m 85
Allowable Load Capacity Vertical kg 150
Horizontal 350
Tail-Stock Used 350
Allowable Workpiece Diameter Ømm Ø320
Net Weight (Motor Excluded) kg 170
Note:
1."N" means shortened motor cover, please contact us for shortening drawing if necessity.
2."A" means high-load design (Equipped with radial and axial bearing).
BRNC-40A
Specifications / ModelExplanation Unit BRNC-40A
Worktable Diameter Ømm Ø400
Table Height Horizontal mm 250
Center Height Vertical mm 255
Overall Height mm 465
Center Bore Diameter Ømm Ø180H7
Through-Hole Diameter Ømm Ø180
Width Of T-Slot mm 14H7
Width Of Guide Block mm 18H7
Minimum Input Increment deg. 0.001°
Indexing Accuracy sec. 20"
Repeatability sec. 4"
Servo Motor
(Model As Required)
FANUC   aiF 12
MELDAS   HF-204S
Speed Reduction Ratio   1/180
Table Rotation Speed r.p.m 16.6
Allowable Inertia Force kg-cm-sec2 99.8
Allowable Turntable Torque kg-m 170
Drive Pressure / Method kg/cm2 35 (Hyd.)
Clamping Torque kg-m 180
Allowable Load Capacity Vertical kg 240
Horizontal 800
Tail-Stock Used 480
Allowable Workpiece Diameter Ømm Ø400
Net Weight (Motor Excluded) kg 270
Note:
1."N" means shortened motor cover, please contact us for shortening drawing if necessity.
2."A" means high-load design (Equipped with radial and axial bearing).
BRNC-500
Specifications / ModelExplanation Unit BRNC-500
Worktable Diameter Ømm Ø500
Table Height Horizontal mm 300
Center Height Vertical mm 310
Overall Height mm 560
Center Bore Diameter Ømm Ø220H7
Through-Hole Diameter Ømm Ø220
Width Of T-Slot mm 18H7
Width Of Guide Block mm 18H7
Minimum Input Increment deg. 0.001°
Indexing Accuracy sec. 20"
Repeatability sec. 4"
Servo Motor
(Model As Required)
FANUC   aiF 12
MELDAS   HF-204S
Speed Reduction Ratio   1/180
Table Rotation Speed r.p.m 16.6
Allowable Inertia Force kg-cm-sec2 187.6
Allowable Turntable Torque kg-m 250
Drive Pressure / Method kg/cm2 35 (Hyd.)
Clamping Torque kg-m 250
Allowable Load Capacity Vertical kg 400
Horizontal 960
Tail-Stock Used 800
Allowable Workpiece Diameter Ømm Ø500
Net Weight (Motor Excluded) kg 400
Note:
1."N" means shortened motor cover, please contact us for shortening drawing if necessity.
2."A" means high-load design (Equipped with radial and axial bearing).