BRNC-255A
Standard Dimension

Reference

Specifications / ModeUnitBRNC-255ABRNC-320/320NBRNC-40ABRNC-500
Net Diameter mm Ø255 Ø320 Ø400 Ø500
Table Height Horizontal mm 200 222 250 300
Center Height Vertical mm 160 210 255 310
Overall Height mm 305 385 465 560
Center Bore Diameter Ømm Ø100H7 Ø100H7 Ø180H7 Ø220H7
Through-Hole Diameter Ømm Ø100 Ø100 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   α8i α12i α12i α12i
MELDAS   HF-154S HF-204S HF-204S HF-204S
Speed Reduction Ratio   1/120 1/180 1/180 1/180
Table Rotation Speed r.p.m 25 16.6 16.6 16.6
Allowable Inertia Force kg-cm-sec2 12.3 38.5 99.8 187.6
Allowable Turntable Torque kg-m 48 78 170 250
Drive Pressure / Method kg/cm2 35 (Hyd.) 35 (Hyd.) 35 (Hyd.) 35 (Hyd.)
Clamping Torque kg-m 50 85 180 250
Allowable Load Capacity Vertical kg 200 150 240 400
Horizontal kg 640 350 800 960
Tail-Stock kg 400 350 480 800
Allowable Workpiece Diameter Ømm Ø255 Ø320 Ø400 Ø500
Net Weight (Motor Excluded) kg 97 173 273 400
  1. "N" means shortened motor cover,please contact us for shortening drawing if ncecssity.
  2. "A" means high-load design (Equipped with radial and axial bearing).