SCHUNK JGZ Pneumatic 3-Finger Centric Gripper Review: Specs, Price and Applications
The SCHUNK JGZ is a universal pneumatic three-finger centric gripper. Compressed air drives a piston, and a wedge-hook mechanism converts that motion into synchronized, centric movement of the three jaws.
T-slot guidance supports high maximum moments for long fingers, while the compact, lightweight body keeps interfering contours small. Optional AS/IS versions maintain a minimum gripping force if pressure drops, and sensor accessories monitor the stroke position.
Quick Verdict
A cost-effective centric gripper for round and cylindrical parts. It delivers the centring benefit of three jaws at a price point aimed at economical handling solutions.
SCHUNK JGZ Pneumatic 3-Finger Centric Gripper at a Glance
Specification | Details |
Gripper type | Pneumatic 3-finger centric gripper |
Drive | Piston with wedge-hook kinematics |
Guidance | T-slot guidance, high maximum moments |
Design | Compact, lightweight, minimal interfering contours |
Mounting | One side, two screw directions |
Air supply | Hose-free or screw connections |
Options | Grip force maintenance AS/IS; stroke sensors |
Price | Request a quote; positioned for high cost-benefit |
Design and Operating Principle
The wedge-hook principle transfers piston force to the jaws through inclined surfaces. It is compact and stiff, and it distributes force evenly so all three jaws move together. Synchronized jaws centre round parts on the gripper axis, which simplifies loading into chucks and fixtures.
T-slot guidance offers solid support at moderate cost and allows long fingers within the rated moments. For many machine-tending and assembly tasks, this balance of precision and price is ideal.
AS (outside gripping) and IS (inside gripping) versions add springs that keep a minimum force if air fails, an important safety feature when handling heavy parts over a machine.
Integration and Selection
Size the gripper for part mass, finger length and robot acceleration, and decide between outside and inside gripping. Choose AS or IS when the safety concept requires the part to stay gripped on air loss.
Add stroke sensors for confirmation and use the hose-free connection with a custom adapter plate for clean routing.
Industry Applications
Industry | Typical use |
Machine tending | Loading turned parts into lathes |
Automotive suppliers | Handling bearing rings and flanges |
Assembly | Centring cylindrical parts before insertion |
General manufacturing | Economical handling of round parts |
Functional Uses
Centric gripping of round parts
Inside and outside gripping
Safe holding with AS/IS
Stroke monitoring
Pros and Cons
Advantages
Three synchronized jaws centre parts
Economical price point
Compact, lightweight body
Optional grip force maintenance
Limitations
T-slot guidance less rigid than premium guides
Single mounting side
Not fully hygienic-design compliant
Who Should Consider the SCHUNK JGZ Pneumatic 3-Finger Centric Gripper?
The JGZ suits integrators and plants that need reliable, low-cost centric gripping of round parts in machine tending and assembly.
Price and Availability
Price: Request a quote. SCHUNK prices the JGZ by size, options and quantity, so the final figure depends on the exact configuration. Budget for the complete tooling package, including fingers or adapters, mounting, air or electrical connections and commissioning time, rather than the module alone.
Further Reading
SCHUNK JGZ Pneumatic 3-Finger Centric Gripper FAQ
What is the SCHUNK JGZ?
A universal pneumatic three-finger centric gripper with wedge-hook kinematics and T-slot guidance.
Why use a 3-finger centric gripper?
Three synchronized jaws centre round and cylindrical parts on the gripper axis.
Does it maintain grip on air loss?
Optional AS/IS versions maintain a minimum gripping force during a pressure drop.
Can long fingers be used?
Yes. The T-slot guidance supports high maximum moments.
How is air supplied?
Hose-free or through screw connections.
How much does the JGZ cost?
Request a quote; SCHUNK positions it as an economical solution.
