PHD Series GRA Precision Micro Parallel Gripper Review: Specs, Price and Applications
The PHD Series GRA is a precision micro parallel gripper designed for small part handling. It combines a compact body with high moment capacity and support for long tooling.
A factory-set jaw guide system minimises free play and deflection under load, double acting operation allows internal and external gripping, internal speed control is standard, and it is switch-ready for magnetic position sensors.
Quick Verdict
A tidy precision micro gripper that removes the need for external speed controls and holds tight tolerances for small parts.
PHD Series GRA Precision Micro Parallel Gripper at a Glance
Specification | Details |
Gripper type | Micro parallel pneumatic |
Jaw guide | Factory set, minimal free play |
Moments | High, supports long tooling |
Actuation | Double acting |
Speed control | Internal, standard |
Sensing | Switch-ready for magnetic sensors |
Price | Request a quote |
Design and Operating Principle
Small parts demand precise, repeatable jaw positions; the factory-set guide system keeps free play minimal so parts are centred consistently.
Internal speed control prevents jaws from slamming, protecting delicate parts without extra flow controls.
Switch-ready slots accept magnetic sensors for open or closed confirmation.
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.
Add magnetic switches for confirmation and design fingers within moment limits.
Industry Applications
Industry | Typical use |
Electronics | Component assembly |
Medical devices | Micro part handling |
Watchmaking and precision | Small mechanism parts |
Laboratories | Sample handling |
Functional Uses
Micro part gripping
Centering small parts
Internal and external gripping
Position sensing
Pros and Cons
Advantages
Precise jaw guides
Internal speed control
Switch-ready
High moment capacity
Limitations
Micro size only
Numeric specs not on A3
Pneumatic supply needed
Who Should Consider the PHD Series GRA Precision Micro Parallel Gripper?
The GRA suits precision small-part assembly.
Price and Availability
Price: Request a quote. PHD prices the Series GRA 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 GRA Precision Micro Parallel Gripper FAQ
What is the GRA designed for?
Small part handling.
What reduces free play?
A factory-set jaw guide system.
Does it need external speed controls?
No, internal speed control is standard.
Can it grip internally?
Yes, it is double acting.
Can sensors be added?
Yes, it is switch-ready for magnetic sensors.
How much does it cost?
Request a quote from PHD.
