GRIP GI Internal Gripper Review: Specs, Price and Applications
The GRIP GI is a pneumatic inflatable bellows gripper for internal gripping. It is inserted into a bore, and when air pressure is applied its silicone membrane expands, enlarging the outer diameter and gripping by friction against the inner wall.
When pressure is removed, the elastic silicone retracts into the housing for smooth release. The design grips without damaging the material, for tasks where precision, safety and protection matter.
Quick Verdict
A gentle, simple internal gripper for parts with bores, ideal where outer surfaces must not be touched.
GRIP GI Internal Gripper at a Glance
Specification | Details |
Gripper type | Pneumatic inflatable internal gripper |
Element | Silicone membrane |
Principle | Expands under pressure, grips by friction |
Release | Membrane retracts when pressure removed |
Surface protection | Non-damaging grip |
Price | Request a quote |
Design and Operating Principle
A membrane gripper contacts a large area of the bore wall, spreading force and avoiding the point loads that mechanical fingers create. That protects coated, glass or thin-walled parts.
With no moving mechanical parts, the gripper is simple and tolerant of small diameter variations.
Retraction into the housing ensures clean release without dragging.
Integration and Selection
Choose the size for the bore diameter and depth, and set air pressure for adequate friction. Add part presence sensing if needed.
Check the bore surface is clean and dry for consistent friction.
Industry Applications
Industry | Typical use |
Glass | Handling bottles and tubes |
Packaging | Gripping cups and containers |
Automotive | Handling rings and sleeves |
Plastics | Molded parts with holes |
Functional Uses
Internal bore gripping
Damage-free handling
Thin-walled part handling
Simple pneumatic gripping
Pros and Cons
Advantages
Gentle on parts
No mechanical fingers
Smooth release
Simple operation
Limitations
Friction based
Numeric specs not on A3
Membrane wear
Who Should Consider the GRIP GI Internal Gripper?
The GI suits handling of parts by internal bores without surface contact.
Price and Availability
Price: Request a quote. Essential Robot Products supplies the GRIP GI in North America and prices it by configuration and quantity. Budget for fingers or adapters, mounting, air or electrical connections and commissioning as part of the complete installation.
Further Reading
GRIP GI Internal Gripper FAQ
How does the GI grip?
A silicone membrane expands inside a bore and grips by friction.
Does it damage parts?
It is designed to grip without damage.
How does it release?
The membrane retracts when pressure is removed.
Is it pneumatic?
Yes.
Where is it used?
Internal gripping tasks needing precision and material protection.
How much does it cost?
Request a quote from Essential Robot Products.
