Full Hydraulic Rock Breakers

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Make every blow count with a DEMCO Hydrox breaker

High-power, long-lasting breaking for 4-100 tonne excavators
In-built blank fire protection prolongs component life
Unique piston design reduces power requirements from the excavator
Lower operating pressure lowers fuel consumption
Fully sealed accumulator ensures long service life & lower maintenance
Built tough for all types of rock (from Air Supply to AC-DC)

Hydrox breakers.
Serious force.
Staying power.

Heavy Duty Rock Breakers

DEMCO Hydrox breakers are built for heavy-duty hydraulic power, delivering maximum impact energy for high-production quarry, mining, demolition, excavation, and civil applications.

Less fuel, more power

Designed to integrate seamlessly with carrier equipment, Hydrox breakers leverage the machine’s hydraulic system to generate industry-leading impact energy.

Uniquely designed pistons deliver maximum power at a lower operating pressure, reducing carrier workload & saving fuel without compromising performance standards.
Special hydraulic suspension system provides blank-fire protection, preventing the piston from impacting the cylinder & prolonging component lifespans.
Unique Isomax buffer system maximises breaker performance while minimising vibration & shock on the carrier.

Stay sure with every strike

When the job demands bigger force and longer work cycles, DEMCO Hydrox rock breakers utilise their in-built power valve to keep hitting with maximum power every time.

Heavy-duty housing locks out stress & locks in strength. High-strength steel & unmatched heat treatment & coating processes deliver uncompromising durability.
36-month warranty, parts availability & technical support.
Service kits, wear parts, seals, bushings & tools ready for quick dispatch.

Full Hydraulic Rock Breakers

We’ve got DEMCO rock breakers ready to go from three handy New Zealand locations. Check out the range below.

DMB Model	DMB36	DMB45	DMB65	DMB95	DMB125	DMB155	DMB175	DMB215	DMB255	DMB285	DMB365	DMB505	DMB705

Working Weight (kg)	450	490	750	950	1250	1580	1900	2250	2550	3000	3950	4650	7150
Operating Pressure (bar)	120–125	120–125	125–130	125–130	135–140	135–140	135–140	140–145	140–145	140–145	145–150	150–155	155–160
Carrier Weight (ton)	6–9	7–11	8–14	10–16	16–22	18–26	22–29	26–32	32–40	32–45	45–55	50–65	65–100
Flow Rate (l/min)	50–100	50–100	60–110	70–120	80–130	100–150	120–180	160–210	190–240	210–260	220–270	230–300	250–350
Tool Diameter (mm)	75	85	95	100	115	125	135	145	150	160	175	190	210
Relief Pressure (bar)	180	180	190	190	200	200	200	200	210	210	210	210	220
Back Pressure (bar)	10	10	10	10	10	10	10	10	10	10	10	8	8
Impact Frequency (bpm)	490–990	440–880	360–670	360–630	460–760	360–550	360–550	370–490	390–540	380–480	370–450	330–440	250–350