PHD Series GRM0 Miniature Workholding Clamp Review: Specs, Price and Applications
The PHD Series GRM0 is a miniature pneumatic workholding clamp delivering up to 135 lb (600 N) total clamp force, which PHD describes as the industry's highest for its size.
It locks in the closed position, is compact and lightweight and is available in two jaw styles.
Quick Verdict
A tiny clamp with outsized force, ideal for sheet metal tooling where space is limited.
PHD Series GRM0 Miniature Workholding Clamp at a Glance
Specification | Details |
Product type | Miniature pneumatic workholding clamp |
Size | GRM size 0 |
Total clamp force | 135 lb (600 N) |
Locking | Locks in closed position |
Jaw styles | Two |
Price | Request a quote |
Design and Operating Principle
GRM clamps are used on press-line and body-shop tooling to clamp sheet metal edges during transfer. A pneumatic cylinder drives a cam or toggle that closes the jaw, and locking in the closed position means the panel stays clamped if air is lost.
The GRM0 is the smallest of the family, fitting where larger clamps cannot.
Integration and Selection
Place clamps along panel edges and choose jaw style for flange geometry. Add sensors for clamp confirmation.
Verify clamp force against transfer accelerations.
Industry Applications
Industry | Typical use |
Automotive | Small sheet metal parts |
Appliances | Panel clamping |
Metal fabrication | Transfer tooling |
Electronics enclosures | Thin sheet handling |
Functional Uses
Sheet metal clamping
Transfer tooling
Fail-safe locking
Compact fixturing
Pros and Cons
Advantages
High force for size
Locks closed
Compact and light
Two jaw styles
Limitations
Smallest size only
Opening data not on A3
Pneumatic supply needed
Who Should Consider the PHD Series GRM0 Miniature Workholding Clamp?
The GRM0 suits compact sheet metal tooling.
Price and Availability
Price: Request a quote. PHD prices the GRM0 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 GRM0 Miniature Workholding Clamp FAQ
What clamp force does GRM0 provide?
135 lb (600 N) total.
Does it lock closed?
Yes.
How many jaw styles?
Two.
Is it compact?
Yes, compact and lightweight.
What is it used for?
Workholding and sheet metal clamping.
How much does it cost?
Request a quote from PHD.
