Direct Drive (DDR) rotary tables with absolute and incremental encoders provide superior angular positioning and are designed to eliminate backlash, friction and wear problems associated with worm, gear and belt drives. Low maintenance and high throughput characteristics of the Direct Drive stage yields the lowest total cost of ownership. APPLICATIONS:
|
System performance |
Unit |
SRT160-50-INC/ABS |
|
Tabletop diameter |
mm |
160 |
|
Height |
mm |
100 |
|
Aperture |
mm |
56 |
|
Motor type |
|
Three phase brushless |
|
Peak Torque |
Tp (Nm)
|
70 |
|
Continuous torque |
Tc (Nm) (note 2) |
20 |
|
Peak current |
Amp |
12 |
|
Continuous current |
Amp |
6 |
|
Encoder
l |
|
Incremental (A+,B+, A-,B-, Z+,Z-) |
|
Bearing axial load capacity |
Kg
|
100 |
|
Accuracy |
Arc-sec |
30 (N-grade) |
|
Bus voltage |
VDC VAC |
150-350 115-230 |
|
Max. speed |
RPM |
150 |
|
Bearing run-out |
Microns
|
30 (N grade) |
|
Stage weight |
Kg |
9 |
|
Construction |
|
Rotor – steel Stator - aluminum |
Planar
Note 1 |
1sec. duration, coil at 20°C |
Note 2 |
Coil at 120°C |
Note 3 |
Load capacity rated at 1/10 of bearing L10 rating |
Note 4 |
Ratio Tp (Nm) / Jload (kg^m2) >10 for servo loop stability |
|