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Tsudakoma Rotary Tables

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RNCK 631
ROTARY TABLE

  Tsudakoma RNCK Rotary Table  

RB-R,L SERIES TABLES • RB-K SERIES TABLES • RNCK-631 TABLE

RNCK-631 SPECIFICATIONS

Model RNCK-631
Table diameter 630
Center height 400
Center bore Nose dia. 60H6
Thru dia. 60
Table T-slot width 18H7
Guide block width 18h7
Servo motor-Fanuc*-3000rpm Alpha 12i
Net Weight                kg (lbs) 800 (1,760)
Speed reduction ratio 1/180
Max. table rotation speed
with 3000 rpm motor
16.7
Indexing accuracy  (arc sec.) ±7.5
Repeatability         (arc sec.) ±2
Clamp system Hydraulic or Air-hydraulic (optional)
Clamp torque@ 500psi    Nm 4,410 (3,250 ft.lbs.)
Allowable wheel torque   Nm 4,116 (3,033 ft.lbs.)
Allowable
work weight
    kg (lbs)
Vertical
[  ] =
tailstock
400 (880)
[800 (1,760)]
Allowable
load when
table
clamped
F
N (lbf)
49,000
(10,976)
FxL
Nm
(ft lbs)
4,410
(3,250)
FxL
Nm
(ft lbs)
7,840
(5,778)

  *Other motors & rpm available • specification subject to change without notice • Dimensions = mm
For table diameters larger than 631mm, select the "K" motor mounting on the RNCV page.

RNCK-631 DIMENSIONS

Tsudakoma Rotary Tables

RNCK-631 ACCURACIES

Inspection Items • Dimensions = mm

RNCK-631
Std. Scale
Table top flatness (concave) OAL 0.03 0.02
Table top runout - 0.02 0.01
Center bore runout Spindle nose 0.01 0.005
Perpendicularity of table top to frame bottom OAL 0.03 0.02
Perpendicularity of table top to
frame bottom guide blocks
OAL 0.03 0.03
Indexing accuracy                               (arc sec.) - ±7.5 ±4
Parallelism of centerline between
rotary table and tailstock to frame
bottom guide blocks
Per 300mm 0.02 0.02
Height difference of both center lines of rotary table and tailstock
(Tailstock center line should be higher)
- 0.02 0.02

RNCK-631 CLAMPING BLOCK

Model Type Quantity Available
T-slot pitch
Available
T-slot

Dimensions = mm

A B C D E F G H I J K L M
RNCK-631 II 4 90 ~ 255 18 40 18 63 18 15 30 28 21 11 105 60 28 16
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