Piab SBG-50 Servo Bag Gripper Review: Specs, Price and Applications

The Piab SBG-50 Servo Bag Gripper handles bags of different sizes across multiple production lines. Its width adjusts on the fly by programmable servo from 265 to 500 mm, with a manual narrow mode down to 165 mm.
It handles bag heights of 65 to 165 mm and weights up to 50 kg. Gearbox and motor combinations suit various robot brands, and the design uses a robust belt and pulley system, linear rails, stainless steel fingers, independent decker plates and top-mounted clamps.
Quick Verdict
The flexible choice for palletizing several bag sizes from one robot, changing width automatically between lines.
Piab SBG-50 Servo Bag Gripper at a Glance
Specification | Details |
Tool type | Servo-adjusted bag gripper |
Model | SBG-50 |
Width (servo) | 265 to 500 mm, on the fly |
Width (narrow mode) | Down to 165 mm, manual |
Bag height | 65 to 165 mm |
Max bag weight | 50 kg |
Drive | Gearbox and motor for various robot brands |
Mechanics | Belt and pulley, linear rails |
Fingers | Stainless steel |
Price | Request a quote |
Design and Operating Principle
When one robot serves multiple bagging lines, bag sizes differ. Servo width adjustment lets the gripper change between picks without stopping.
Using motors and gearboxes matched to the robot brand allows the servo axis to be controlled as an external robot axis.
Belt-and-pulley drive with linear rails gives smooth, quiet motion, and stainless fingers resist harsh environments.
Integration and Selection
Select the motor and gearbox for the robot brand and integrate the axis into the robot controller. Program widths per line.
Confirm robot payload for tool plus 50 kg bag.
Industry Applications
Industry | Typical use |
Agriculture | Multi-line bag palletizing |
Chemicals | Different sack sizes |
Pet food | Varied bag formats |
Building materials | Cement bags |
Functional Uses
Multi-line bag palletizing
On-the-fly width change
Heavy bag handling
Accurate bag drop
Pros and Cons
Advantages
Servo width adjustment
Up to 50 kg bags
Robot-brand drive options
Stainless fingers
Limitations
Heavier and costlier than manual grippers
Servo integration needed
Tool weight not on A3
Who Should Consider the Piab SBG-50 Servo Bag Gripper?
The SBG-50 suits palletizing cells serving several bag lines.
Price and Availability
Price: Request a quote. Piab prices SBG-50 by configuration, options and quantity. Budget for the complete solution, including mounting, vacuum or air supply, valves, sensors and commissioning, rather than the component alone.
Further Reading
Piab SBG-50 Servo Bag Gripper FAQ
What width range does the SBG-50 cover?
265 to 500 mm by servo, down to 165 mm in manual narrow mode.
What bag heights fit?
65 to 165 mm.
What bag weight can it handle?
Up to 50 kg.
Can width change on the fly?
Yes, by programmable servo.
Does it fit various robots?
Gearbox and motor combinations exist for various robot brands.
How much does it cost?
Request a quote from Piab.





