PHD Series GRK Precision Parallel Gripper Review: Specs, Price and Applications
The PHD Series GRK is a compact, low-profile precision parallel pneumatic gripper with high grip force, large moment capacity and low weight.
True parallel jaw motion simplifies tooling and centres different part sizes, and a wear-compensating jaw guidance system maintains precision over the unit's life. Two grip force and jaw travel combinations are available per size, and double acting operation allows internal and external gripping.
Quick Verdict
A precision gripper that stays precise, thanks to wear-compensating guidance, with options to trade force for stroke.
PHD Series GRK Precision Parallel Gripper at a Glance
Specification | Details |
Gripper type | Precision parallel pneumatic |
Profile | Compact, low |
Guidance | Wear-compensating jaw guides |
Motion | True parallel |
Options | Two force/travel combinations per size |
Moments | High, longer tooling and heavier parts |
Actuation | Double acting |
Price | Request a quote |
Design and Operating Principle
Most grippers lose accuracy as guides wear. The GRK's guidance compensates for wear, maintaining precision across its life.
Two force/travel combinations per size let engineers choose high force or longer stroke without changing body size.
High moment capacity allows longer jaw tooling for reaching into fixtures.
Integration and Selection
Size the gripper from the required grip force at the actual finger length, including acceleration and a safety factor, and check the allowable moments for the jaw tooling. Use PHD's sizing data, since force and travel values vary by size.
Pick the force/travel combination that matches part range and holding needs.
Industry Applications
Industry | Typical use |
Precision assembly | Accurate part placement |
Medical devices | Precise handling |
Electronics | Connector insertion |
Automotive | Small precision parts |
Functional Uses
Precision gripping
Part centering
Long tooling support
Internal and external gripping
Pros and Cons
Advantages
Wear-compensating guides
Low profile
Two force/travel options
High moments
Limitations
Numeric specs not on A3
Pneumatic supply needed
Precision focus may be overkill for basic tasks
Who Should Consider the PHD Series GRK Precision Parallel Gripper?
The GRK suits precision assembly needing long-term accuracy.
Price and Availability
Price: Request a quote. PHD prices the Series GRK by size, options and quantity. Budget for fingers or tooling, mounting, air supply, sensors and commissioning as part of the complete installation.
Further Reading
PHD Series GRK Precision Parallel Gripper FAQ
What maintains GRK precision?
A wear-compensating jaw guidance system.
Do jaws move in parallel?
Yes, true parallel motion.
Are there force/travel options?
Yes, two combinations per size.
Can it grip internally?
Yes, double acting.
Can it support long tooling?
Yes, high moment capability.
How much does it cost?
Request a quote from PHD.
