Back Type CNC Rotary Table

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VRNC-170B
VRNC-210B
VRNC-255B

CNC Rotary Table

  • Worktable diameter 170, 210 and 255 mm.
  • Motor is mounted at the back.
  • Employs high precision cross roller bearings.
  • Exclusive dual lead worm drive.
  • Air operated.

Drawing VRNC-170B

Drawing VRNC-210B

Drawing VRNC-255B

Specifictions

Unit:mm
Model VRNC - 170B VRNC - 210B VRNC - 255B
Worktable diameter Φ 170 Φ 210 Φ 255
Center height ( Vertical ) 135 160 160
Center bore diameter Φ 35 H7 Φ 45 H7 Φ 45 H7
T - slot size 12 H7 12 H7 12 H7
Guide block size 18 h7 18 h7 18 h7
Number of worm Gear teeth 72 72 72
Cunulative indexing accuracy Max. x 20" Max. x 20" Max. x 20"
Repeatability 4" 4" 4"
Clamp torque & Clamp method 8 kg-m
(Pneumatic pressure 5kg/cm2)		 16 kg-m
(Pneumatic pressure 5kg/cm2)		 16 kg-m
(Pneumatic pressure 5kg/cm2)
Load capacity Vertical 75 kg 75 kg 75 kg
Tail-stock used 150 kg 150 kg 150 kg
Allowable inertia force 4.9 kg-cm-sec2 4.9 kg-cm-sec2 4.9 kg-cm-sec2
Allowable turntable torque 15 kg-m 15 kg-m 15 kg-m
Net Weight ( motor exclude ) 62.5 kg 76 kg 77.5 kg
Servo motor (model excluded ) FANUC MELDAS FANUC MELDAS FANUC MELDAS
α 4i HF-53T α 4i HF-53T α 4i HF-53T
Speed reduction ratio 1/90 1/90 1/90 1/90 1/90 1/90
Minimum input increment 0.001o 0.001o 0.001o 0.001o 0.001o 0.001o
Table roation speed 44.4 r.p.m. 44.4 r.p.m. 44.4 r.p.m. 44.4 r.p.m. 44.4 r.p.m. 44.4 r.p.m.