PHD Series GRT Three Jaw Parallel Gripper Review: Specs, Price and Applications
The PHD Series GRT is a three-jaw parallel pneumatic gripper that self-centres the part and maximises contact with jaw tooling. True parallel, synchronous jaw motion simplifies tooling, and male and female keys on the jaws locate tooling precisely.
A close-tolerance enclosed hardened steel mechanism has no play and a minimum 10 million cycle rating. Eight sizes in imperial and metric are available, with optional part ejector and spring assist, and the gripper is fully field repairable.
Quick Verdict
The industry-standard style three-jaw gripper for round parts, with thoughtful tooling keys and ejector option.
PHD Series GRT Three Jaw Parallel Gripper at a Glance
Specification | Details |
Gripper type | Three-jaw parallel pneumatic |
Centering | Self-centering, synchronous |
Sizes | Eight, imperial and metric |
Jaw keys | Male and female standard |
Mechanism | Enclosed hardened steel, no play |
Life | Minimum 10 million cycles |
Options | Part ejector, spring assist |
Service | Fully field repairable |
Price | Request a quote |
Design and Operating Principle
Three synchronous jaws centre cylindrical parts on the axis, ideal for chuck loading.
Jaw keys locate tooling accurately so replacement fingers sit in the same position.
A part ejector pushes parts off the jaws on release, preventing sticking.
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.
Add spring assist for retention and the ejector for sticky parts.
Industry Applications
Industry | Typical use |
Machine tending | Lathe loading |
Automotive | Hubs and gears |
Hydraulics | Fittings and cylinders |
Plastics | Round molded parts |
Functional Uses
Round part centering
Chuck loading
Part ejection
Fail-safe holding
Pros and Cons
Advantages
Eight sizes
Keyed jaws
10 million cycles
Ejector and spring options
Limitations
Force values not on A3
Pneumatic supply needed
Three-jaw tooling cost
Who Should Consider the PHD Series GRT Three Jaw Parallel Gripper?
The GRT suits round-part handling in machine tending.
Price and Availability
Price: Request a quote. PHD prices the Series GRT 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 GRT Three Jaw Parallel Gripper FAQ
How many jaws does GRT have?
Three, self-centering.
How many sizes exist?
Eight, in imperial and metric.
How long does it last?
Minimum 10 million cycles.
Is a part ejector available?
Yes, optional.
Is it repairable?
Yes, fully field repairable.
How much does it cost?
Request a quote from PHD.
