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A critical condition for realizing a high accuracy 5-axis machining is that the center of rotation axis is always constant in space. The 5-axis machine YBM 8T-TT developed on the basis of YBM 8T fulfills this condition, and for high speed and high accuracy machining, the A-axis drive uses a system that controls synchronously both axes of cradle. Further, the trunnion base has an integral construction to improve the rigidity and also the A-axis trunnion is thermally controlled, so that the influence of a cutting reaction force, mass variations, and thermal deformation can be minimized, thus enabling a high accuracy machining by high speed and high accuracy positioning.

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Yasda 8T-63TT

Product Details

Features & Benefits

  • Trunnion Style 5 Axis Horizontal Machining Center
  • Through Hardened (HR60) Box Guide Ways
  • Optical Scale Feedback on XYZ Axis
  • Twin Ball Screws
  • Self-adjusting Spindle Preload System
  • Curvic Coupled Pallet Clamping with Air Blast
  • Thermal Distortion Stabilization
  • H frame Z Axis Steel Bed for Heat Distribution for Long Term Accuracy
  • Double Walled and Ribbed Y Axis Column with Minimal Axial Yaw
  • 72 Tooth Curvic Coupling Pallet Clamping with Air Blast
  • Rigid Machine Structure for Machining Various Material Types
  • Optical Scale Feedback for Precise Positioning.
  • Probing Systems

Technical Data


X-Axis Travel
39.4 (1000) in (mm)
Y-Axis Travel
39.4 (1000) in (mm)
Z-Axis Travel
43.3 (1100) in (mm)
A-Axis (tilt table)
+15 to -105 degrees
B-Axis (tilt table)
360º (0.0001º)
Distance from Table Surface to Spindle
17.7-21.7 (450-550) in (mm)

Feed Rate

X-Axis Rapid Traverse
40,000 mm/min (1,574ipm)
Y and Z Axes Rapid Traverse
48,000 mm/min (1,889ipm)
A-Axis Rapid Traverse
5 rpm
B-Axis (titl) Rapid Traverse
20 rpm
X, Y, and Z Axes Cutting Feed Rate
Max. 15,000 mm/min (590ipm) with HAS
A-Axis Cutting Feed Rate
3 rpm
B-Axis (tilt) Cutting Feed Rate
12 rpm


Table Working Surface
24.8x24.8 (630x630) in (mm)
Table Loading Capacity
Horizontal: 1764 (800) Vertical: 1433 (650) lbs (kg)
Max Diameter of Workpiece
ø 39.4 (1000) in (mm)


Spindle Type
SA-50-10000-22 -
Spindle Speed Range
50-10000 rpm (opt)
Spindle Taper
7/24 NT No. 50 (BT50) -


Number of Tools
60 std (opt)
Maximum Tool Weight
44 (20) lbs (kg)
Maximum Tool Length
17.3 (440) in (mm)
Maximum Tool Diameter
ø 14.2 (360) in (mm)


Machine Weight
61730 (28000) lbs (kg)
Machine Control
FANUC 31i-B5 -


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