CNC Rotary Table
DRT - 125 • 255A • 320 • 400
Feature
  • Direct drive motor offers high speed running up to 7 times faster than other ordinary models.
  • Reduction gear is not required. Employs a high torque motor for high transmission efficiency. Allows for adopting an oil chiller. (Vertical & Horizontal applications)
  • Encoder equipped for high indexing accuracy.
  • Wholly circular hydraulic clamping for high clamp torque.
  • DRT
  • -
  • 255A
  • -
  1. Direct drive motor
  2. Table diameter
  3. Type
    L:Left-handed
Specifications / Model Unit DRT-125 DRT-255A DRT-320 DRT-400
Worktable Diameter mm Ø125 Ø255 Ø320 Ø400
Table Height Horizontal mm 325 325 355 385
Center Height mm 110 160 210 255
Overall Height Vertical mm 230 329 440 485
Center Bore Diameter mm Ø25H7 Ø50H7 Ø50H7 Ø50H7
Width Of T-Slot mm 12H7 12H7 14H7 14H7
Width Of Guide Block mm 14h7 18h7 18h7 18h7
Minimum Input Increment deg. 0.001° 0.001° 0.001° 0.001°
Indexing Accuracy (1※) sec. 1※ 1※ 1※ 1※
Repeatability (1※) sec. 1※ 1※ 1※ 1※
Speed Reduction Ratio 1/1 1/1 1/1 1/1
Pressure (Clamping System) kg/cm2 35 (Hyd.) 35 (Hyd.) 35 (Hyd.) 35 (Hyd.)
Clamping Torque N.m (kgf.m) 323(33) 833(85) 1764(180) 1764(180)
ETEL Direct-Drive Torque Motor
(For HEIDENHAIN or Siemens controllers)
ETEL(VDC600)   TMB+0140-070-RA
(Rotor inertia 0.00236)
TMB+0210-070-RA
(Rotor inertia 0.0214)
TMB+0291-070-SA
(Rotor inertia 0.0567)
TMB+0291-100-UA
(Rotor inertia 0.0804)
Peak Torque Nm 92.6 318 608 869
Continuous Torque Nm 55.4 176 356 529
Allowable Inertia Force
J=W.D2/8
kg.m2 0.07 0.64 1.7 2.41
Allowable Max. Rotation Speed(2※)  r.p.m 350 185 135 130
HEIDENHAIN Encoders(1※) ECA4412  RCN2310/2380(±5Sec.)  RCN2510/2580(±2.5Sec.) 
Allowable Load
Capacity
(For HEIDENHAIN or Siemens controllers
Vertical
kg 25 55 100 100
Horizontal
kg 37 80 150 120
With Tail-Stock
kg 37 80 150 120
FANUC Direct-Drive Torque Motor
(For FANUC controllers)
FANUC(220V)   DiS 60/400-B DiS 150/300-B DiS 300/300-B DiS 500/250-B
Peak Torque Nm 130 380 600 1200
Continuous Torque Nm 65 185 270 550
Allowable Inertia Force
J=W.D2/8
kg.m2 0.21 0.99 2.94 5.1
Allowable Max. Rotation Speed(2※)  r.p.m 200 150 125 125
FANUC Encoders(1※)   αiCZSensor512A
(±4Sec.)
αiCZSensor512A
(±4Sec.)
αiCZSensor768A
(±3Sec.)
αiCZSensor768A
(±3Sec.)
Allowable Load
Capacity
(For FANUC controllers)
Vertical
kg 75 84 153 170
Horizontal
kg 110 122 230 255
With Tail-Stock
kg 110 122 230 255
MAX.Thrust Load
(Table is clamped)
Axial force
N (kgf) 9800
(1000)
25000
(2551)
30000
(3061)
35000
(3571)
Radial moment
N.m
(kgf.m)
323
(33)
833
(85)
1764
(180)
1764
(180)
Tilting moment
N.m
(kgf.m)
441
(45)
3200
(326)
4000
(408)
5000
(510)
Net Weight (Motor Excluded) kg 65 140 200 320
Dimensions

Note:

  1. ※Positioning accuracy according to encoder type.
  2. ※Dependingg on the choice of motor performance,and another high-speed for option; please contact us for more details if necessity.
Dimensions
DRT-125
DRT-255A
DRT-320
DRT-400