Specifications

157
Southwestern Industries, Inc.
TRAK LPM Programming, Safety, & Operating Manual
MACHINE SETUP
4
TH
AXIS ON
15.1 4
th
Axis Specifications
The following are the specifications for the 4
th
axis unit.
201RB Model
200RB Model
SWI 8” Model
Spindle Diameter
7.874” or 200 mm
7.874” or 200 mm
8.07” or 205 mm
Chuck Diameter
7.874” or 200 mm
7.874” or 200 mm
7.874” or 200 mm
Overall Height of 4
th
Axis
11.811” or 300 mm
12.79” or 325 mm
13.86” or 352 mm
Centerline Height of Spindle
5.315” or 135 mm
6.3” or 160 mm
6.30” or 160 mm
Minimum Resolution of System
0.001º
0.001º
0.001º
Maximum RPM
22
22
22
Repeatability
+/- 2 arc seconds
uni 4 arc seconds, bi
8 arc seconds
+/- 2 arc seconds
Indexing Accuracy
20 arc seconds
25 arc seconds
2 arc seconds
4
th
Axis Weight
185 lbs or 84 Kg
220 lbs or 100 Kg
185 lbs or 84 Kg
4
th
Axis Keyway Size
18 mm
18 mm
18 mm
Max distance between 4
th
axis
with chuck (without chuck) &
tailstock with center
22.5” (26.25”)
22.5” (26.25”)
21.7” (24.7”)
15.2 Definitions, Terms, and Concepts
15.2.1 Direction of 4
th
Axis
It is important to understand the differences in how to command the 4
th
axis to position in
the correct direction. The figure on the left will show you the positive direction for the
work coordinate system, ie the XYZ and A values that you are programming in relation
to your workpiece. The figure on the right shows which direction the machine will
actually move in order to get it to go in the positive direction.
Figure 15.2.1
Figure 15.2.2
Work coordinates (Positive direction).
Table movement (Positive direction).