Product manual

Model #RB3-065/035 5 R20140519
4. Technical Specifications
This model #RB3-065/035 VERSABALL® Gripper is a research
development unit. Some technical specifications listed in this section
only represent expected values based on testing with earlier
prototypes. No expressed or implied guarantee of these technical
specifications can be made at this time. For best practices on how to
achieve maximum performance with your gripper, see Section 8.
Small Head Large Head
Head diameter 3.5 in 6.5 in
Base weight 2.1 lb
Head weight 1.4 lb 5.5 lb
Total gripper size 5.0 x 5.0 x 4.5 in 6.5 x 6.5 x 7.5 in
Rated supply air pressure 80 psi
Minimum required air flow* 23 SCFM
Air use per grip ~ 0.02 ft
3
/grip ~ 0.1 ft
3
/grip
Head life cycle** 20,000 – 60,000 grips
Operating temperature ~ 33° F to 160° F
Max vertical payload** ~ 10 lb ~ 20 lb
Max tangential payload ~ 20 lb ~ 40 lb
Retention (pull-out) force** ~ 0 – 10 lb ~ 0 – 20 lb
Required minimum contact
(pressing/deformation) force**
~ 10 – 15 lb ~ 15 – 20 lb
Pinching pressure on object** ~ 5 psi ~ 7 psi
Grip time
(evacuation to 20 inHg)
0.1 s 0.7 s
Sealed vacuum hold time < 0.5 inHg loss per 30 seconds
Grip release time ~ 0.15 s ~ 1 s
Placement precision (linear) ~ ± 0.03 in
Placement precision (angular) ~ ± 2°
Target object size range ~ 50% head diameter +/- 20%
* with supply hose open to atmosphere (about 7.1 SCFM with gripper
connected)
** depends heavily on object geometry, surface properties, and programming
practices. See Section 8 for details.