Attachments / Compact Rock Breakers DEMO

Compact Rock Breakers DEMO

Hard-hitting. Easy on your machine.

  • Built-in blank fire protection keeps your carrier safe under load
  • Lower operating pressure reduces fuel consumption & running costs
  • Unique piston design cuts power demand on your carrier
  • Direct mount or quick hitch compatible with any carrier
  • Backed by a 3 year warranty with parts & support on hand
Discover the options

Less fuel.
Lower pressure.
Serious power.

DEMCO compact rock breakers

Hit harder with less. Lower operating pressure, reduced fuel consumption, and reinforced carrier protection – all backed by Earthworm’s NZ warranty and support.

Demolition? Done.

High impact frequency makes compact rock breakers the go-to for breaking concrete and asphalt quickly and efficiently on any demolition site.

  • Concrete and asphalt demolition
  • Fast impact frequency for quick throughput
  • Manoeuvrable enough for confined spaces

Oversize? Managed.

Reliable secondary breaking keeps material moving and operations running smoothly, reducing oversized rock without slowing the process down.

  • Secondary breaking in quarry & mining operations
  • Recycling & material processing
  • Consistent impact force for high-volume work

Tough ground? Covered.

Fast fitment to your excavator means compact rock breakers are ready to work wherever the job takes you.

  • Easy fitment to a range of excavators
  • Go-anywhere size for tight or remote sites
  • Versatile choice for civil & infrastructure work

Compact Rock-Breakers

From three New Zealand locations, Earthworm supplies a range of compact rock breakers to fit directly to your carrier.

Hydraulic Rock Breaker Specifications

Compact models — DMB08 to DMB60

DMB08DMB12DMB18DMB19DMB22DMB38DMB60
Operating weightTop: kg / lbs · Box: kg / lbsTop: 80 / 176Box: 100 / 220Top: 100 / 220Box: 120 / 264Top: 196 / 431Box: 216 / 475Top: 206 / 453Box: 226 / 497Top: 298 / 656Box: 320 / 704Top: 375 / 825Box: 445 / 979Top: 577 / 1,269Box: 600 / 1,320
Operating pressurebar · psi90–1201,280–1,70790–1201,280–1,70790–1201,280–1,70790–1201,280–1,707110–1401,565–1,991120–1501,707–2,134130–1601,849–2,276
Flow ratel/min · gal/min15–254–720–305–825–407–1125–506.5–1340–7010.5–18.550–9013–2460–10016–26.5
Tool diametermm · inch40 / 1.645 / 1.853 / 2.158 / 2.368 / 2.775 / 2.985 / 3.3
Carrier weightton · lbs0.5–1.51,102–3,3061.2–3.02,645–6,6132.5–4.55,511–9,9203.0–4.55,511–9,9204–78,818–15,4326–913,227–19,8417–1415,432–30,864

Mid-range models — DMB90 to DMB310

DMB90DMB140DMB180DMB190DMB230DMB290DMB310
Operating weight Top: kg / lbs · Box: kg / lbs Top: 908 / 1,998 Box: 928 / 2,042 Top: 1,431 / 3,146 Box: 1,460 / 3,212 Top: 1,675 / 3,685 Box: 1,705 / 3,751 Top: 1,936 / 4,921 Box: 1,948 / 4,286 Top: 2,237 / 4,921 Box: 2,890 / 6,358 Top: 2,838 / 6,244 Box: 2,890 / 6,358 Top: 3,065 / 6,743 Box: 3,140 / 6,922
Operating pressure bar · psi 150–170 2,134–2,148 150–170 2,176–2,466 160–180 2,276–2,560 160–180 2,276–2,560 160–180 2,276–2,560 160–180 2,276–2,560 160–180 2,276–2,560
Flow rate l/min · gal/min 80–110 21–29 90–120 24–32 100–150 27–40 120–180 32–48 140–190 37–50 180–240 48–63 200–260 51–69
Tool diameter mm · inch 100 / 3.9 125 / 4.9 135 / 5.3 140 / 5.5 150 / 5.9 155 / 6.1 165 / 6.5
Carrier weight ton · lbs 11–16 24,250–35,274 16–21 35,270–48,500 18–21 39,683–46,297 18–26 39,683–57,320 23–28 50,706–61,729 28–35 61,729–77,161 30–45 66,138–99,208

Talk to one of our attachment specialists to match the right rock breaker unit to your job requirements.

Rick McLean

Manager

0508 21 22 23
rick@earthworm.co.nz

Jerry McLean

Sales Manager

0508 21 22 23
jerry@earthworm.co.nz

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