Furukawa Rock Drill has been manufacturing percussion equipment since 1875. That's not marketing heritage — it's 150 years of direct experience with what happens when steel hits hard rock repeatedly, at scale, and what breaks first. The HB series is the product of that knowledge applied to quarry work, where the breaker runs longer shifts against harder material than almost any other application.
What Quarry Work Demands
Primary rock breaking in a quarry is continuous, not intermittent. A machine that works fine on demolition — breaking reinforced concrete for an hour, moving, breaking again — will develop different failure patterns when it's running eight hours against granite bench faces. The thermal load is higher. The piston sees more total cycles per shift. Dust infiltration is constant. Furukawa's quarry-focused engineering addresses each of these: mono-block body construction eliminates through-bolts as a maintenance and wear variable, the patented dust intake prevention system on the Fx-series draws air from the top of the breaker rather than letting rock dust enter from the chisel end, and improved internal grease routing keeps the front bushing lubricated through longer operating cycles.
The HB30G, designed for 24–27 ton excavators with a 150mm chisel, runs at 250–800 BPM. That upper rate suits secondary breaking of already-blasted boulders, where high frequency clears fragments quickly. The lower rate concentrates energy per blow for dense granite face work. The Fx800 Qtv, Furukawa's large-series quarry unit for 48.5–83 ton excavators, improved hydraulic routing to increase impact per strike while keeping the same pressure and flow as its predecessor — a direct response to quarry operators asking for more productivity without changing carrier setup.

Maintenance in a Quarry Environment
No through-bolts means no through-bolt torque checks. That removes a weekly maintenance task that gets skipped on busy sites and, when it is skipped, leads to housing loosening and casing fractures. The replaceable cylinder liner on several FX models saves maintenance cost — instead of replacing the entire cylinder when the bore wears, operators replace the liner only.
HOVOO and HOUFU supply Furukawa-compatible seal kits, chisel holders, and wear bushings for the HB and Fx series. Parts availability on Furukawa platforms is straightforward because the internal dimensions are standardised across model generations. Details at https://www.hovooseal.com/
Furukawa HB / Fx Series: Quarry Models at a Glance
|
Model |
Carrier (tons) |
Rod diameter |
Impact rate (bpm) |
|
HB20G Plus |
19–22 t |
135 mm |
350–850 |
|
HB30G |
24–27 t |
150 mm |
250–800 |
|
HB20G / GCB200 |
35–43 t |
160 mm |
250–400 |
|
Fx800 Qtv |
48.5–83 t |
190 mm (7.48 in) |
Heavy primary class |
Furukawa hydraulic breaker quarry | HB30G rock drilling | Fx800 heavy breaker | Furukawa FRD quarry hammer | HOVOO | HOUFU | hovooseal.com
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