4
A255 Robot Arm User Guide
99-04-23
Range of Motion, Dimensions, and Weight
The arm’s range of motion depends on the dimensions of each arm section (base,
links, tool flange) and the extent of travel of each joint. These measurements
determine the shape of the arm’s workspace. See the following figures and tables.
Note: A dimension involving a joint is measured to the joint axis.
The arm weighs approximately 37 lb [17 kg].
Weight (approx.)
lb
kg
Arm
37
17
Joint
Axis
Range of Motion
Waist
1
+175
°
to –175
°
Shoulder
2
+110
°
to 0
°
Elbow
3
0
°
to –125
°
Wrist pitch
4
+110
°
to –110
°
Tool roll
5
+180
°
to –180
°
Note: The range of motion of the elbow (joint 3) is dependent on the positions of
the shoulder (joint 2) and the wrist pitch (joint 4).
Section
Dimensions
inch
mm
Base mounting surface to shoulder
10
254.0
Shoulder to elbow
10
254.0
Elbow to wrist pivot (joint 5)
10
254.0
Wrist pivot to tool flange surface
2
50.8
Summary of Contents for A255
Page 1: ...A255 Robot Arm User Guide For use with C500C Controller UMI 33 255 A ...
Page 13: ...Chapter 2 Specifications 7 99 04 23 ...
Page 20: ...14 A255 Robot Arm User Guide 99 04 23 ...
Page 39: ...Chapter 4 Installation 33 99 04 23 Metric units ...
Page 74: ...68 A255 Robot Arm User Guide 99 04 23 ...
Page 78: ...72 A255 Robot Arm User Guide 99 04 23 ...
Page 80: ...74 Index 99 04 23 ...