PHD Series GRR Guardian Long Travel Gripper Review: Specs, Price and Applications
The PHD Series GRR Guardian is a heavy-duty, long jaw travel parallel pneumatic gripper with travels of 150, 200, 250, 300 and 350 mm. It is double acting for internal and external gripping and combines high grip force and large moments with low weight.
Three large-diameter guides span the gripper's length, a dual air-passage piston rod pressurises quickly for short cycles, the synchronizer is enclosed against debris, non-synchronized versions are available, and optional Rodlok locks jaws if air is lost.
Quick Verdict
A foundry-tough, very long-stroke gripper for heavy parts like engine blocks and wheel rims.
PHD Series GRR Guardian Long Travel Gripper at a Glance
Specification | Details |
Gripper type | Heavy-duty long travel parallel pneumatic |
Jaw travel | 150, 200, 250, 300, 350 mm |
Actuation | Double acting |
Guides | Three large-diameter full-length guides |
Cycle | Dual air-passage rod for fast pressurization |
Synchronizer | Enclosed; non-sync option |
Safety | Optional Rodlok jaw lock |
Applications | Heavy parts, engine blocks, wheel rims, foundry |
Price | Request a quote |
Design and Operating Principle
Three large guides spanning the body give stable travel and allow long tooling, essential with heavy parts gripped far from the body.
Dual air passages fill the bores quickly, keeping cycle times short despite the long stroke.
Rodlok mechanically locks jaws on air loss, protecting heavy loads.
Integration and Selection
Size the unit from the required force at the actual tooling length, including acceleration and a safety factor, and check allowable moments. Use PHD's sizing data, since force and travel values vary by size.
Choose travel for the part range and add Rodlok for fail-safe holding.
Industry Applications
Industry | Typical use |
Automotive | Wheel rim manufacturing |
Engines | Small engine block handling |
Foundry | Casting handling |
Heavy assembly | Centering heavy parts |
Functional Uses
Heavy part centering
Very long stroke
Fail-safe locking
Internal and external gripping
Pros and Cons
Advantages
Up to 350 mm travel
Three large guides
Rodlok option
Enclosed synchronizer
Limitations
Large unit
Force values not on A3
High air volume
Who Should Consider the PHD Series GRR Guardian Long Travel Gripper?
The GRR suits heavy, varied part sizes in harsh industries.
Price and Availability
Price: Request a quote. PHD prices the Series GRR by size, options and quantity. Budget for jaw tooling, mounting, air supply, sensors and commissioning as part of the complete installation.
Further Reading
PHD Series GRR Guardian Long Travel Gripper FAQ
What jaw travels are available?
150, 200, 250, 300 and 350 mm.
Can it grip internally?
Yes, double acting.
What is Rodlok?
An option that locks jaws if air pressure is lost.
Is the synchronizer protected?
Yes, it is enclosed.
Where is it used?
Engine blocks, wheel rims and foundry applications.
How much does it cost?
Request a quote from PHD.
