GoodRock Attachments · Hydraulic Breakers
The number is
the machine
it fits.
Twelve hydraulic hammers, GRH 1725 through GRH 4550. Every model is named for the carrier weight it is built for — so a 7.5 to 8 tonne excavator takes a GRH 7580. No cross-reference chart. No guessing.
Assembled in USA
GRH 2935 · 29–35 T carrier · Utah
01 — Fitment
What are you running?
Enter your excavator operating weight. We will name the hammer.
Weights between published classes return the closest hammer. Confirm hydraulic flow and pressure with us before ordering.
Your hammer
GRH 7580
- Carrier weight
- 7.5–8.0 T
- Machine class
- Cat 308 class
- MSRP (USD)
- $11,440
- MSRP (CAD)
- C$12,096
02 — The lineup
Twelve hammers.
Published prices.
Most breaker brands make you call for a number. Ours are on the page — in US and Canadian dollars, for every model in the range.
List prices shown in USD and CAD, rounded to the nearest dollar. Pricing and availability confirmed at quote.
03 — Built for
Greased,
seen, sized.
Automatic cartridge greaser
Cartridge-equipped units carry an automatic greaser on the head. A separately labelled manual greasing port is there as a backup when a cartridge is not on hand.
Hi-vis green, on purpose
The housing is finished in high-visibility green. It reads from the cab, it reads across a yard, and it reads in a photo of your fleet.
Named by the machine, not a catalogue
GRH 1725 fits 1.7–2.5 T. GRH 4550 fits 45–50 T. The model number carries the fitment, so the person on the ground orders the right tool.
04 — Specifications
Full spec sheets
Impact energy, blow rate, required oil flow, operating pressure, tool diameter and service weight for all twelve models — published here as each sheet is confirmed. Ask and we will send the current sheet for your model today.
05 — Dealers
Carry GoodRock
We are adding dealers across North America. Stocking and non-stocking programs, territory discussion, and full margin schedules on request. Tell us your territory and the machines you move.
Get a quote
Tell us the machine.
We size the hammer.
Send your excavator make, model and operating weight. You will have pricing and availability back within 48 hours.