DNB Rockbreaker Range

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Small Rockbreakers

D10IIs

Specification Unit D10IIs
Operating Weight Kg 76
Impact Rate BPM 900 – 1200
Impact Energy J 300
Operating Oil Flow LPM 15-20
Operating Pressure bar 100-120
Carrier Weight Ton 0.5-1.3
Tool Diameter mm 38

D20IIs

Specification Unit D20IIs
Operating Weight Kg 100
Impact Rate BPM 900-1200
Impact Energy J 300
Operating Oil Flow LPM 15-25
Operating Pressure bar 100-120
Carrier Weight Ton 0.8-3.0
Tool Diameter mm 45

D25IIs

Specification Unit D25IIs
Operating Weight Kg 200
Impact Rate BPM 550-1100
Impact Energy J 580
Operating Oil Flow LPM 25-50
Operating Pressure bar 120-140
Carrier Weight Ton 1.3-5.0
Tool Diameter mm 60

D30IIs

Specification Unit D30IIs
Operating Weight Kg 300
Impact Rate BPM 500-1000
Impact Energy J 1000
Operating Oil Flow LPM 45-80
Operating Pressure bar 120-140
Carrier Weight Ton 3.5-8
Tool Diameter mm 75

D40IIs

Specification Unit D40IIs
Operating Weight Kg 520
Impact Rate BPM 400-700
Impact Energy J 1400
Operating Oil Flow LPM 60-90
Operating Pressure bar 135-150
Carrier Weight Ton 6.0-12
Tool Diameter mm 90

Medium Rockbreakers

D55IIs

Specification Unit D55IIs
Operating Weight Kg 855
Impact Rate BPM 350-550
Impact Energy J 2000
Operating Oil Flow LPM 80-110
Operating Pressure bar 140-160
Carrier Weight Ton 12-16
Tool Diameter mm 100

D60IIs

Specification Unit D60IIs
Operating Weight Kg 1050
Impact Rate BPM 350-500
Impact Energy J 2200
Operating Oil Flow LPM 70-110
Operating Pressure bar 140 +/- 5
Carrier Weight Ton 14-18
Tool Diameter mm 115

D65IIs

Specification Unit D65IIs
Operating Weight Kg 1360
Impact Rate BPM 350-500
Impact Energy J 3700
Operating Oil Flow LPM 80-130
Operating Pressure bar 140 +/- 5
Carrier Weight Ton 16-20
Tool Diameter mm 120

D70IIs

Specification Unit D70IIs
Operating Weight Kg 1660
Impact Rate BPM 350-500
Impact Energy J 4300
Operating Oil Flow LPM 120-160
Operating Pressure bar 140 +/- 5
Carrier Weight Ton 18-25
Tool Diameter mm 130

D90IIs

Specification Unit D90IIs
Operating Weight Kg 1860
Impact Rate BPM 350-500
Impact Energy J 4300
Operating Oil Flow LPM 120-160
Operating Pressure bar 140 +/- 5
Carrier Weight Ton 20-28
Tool Diameter mm 130

Large Rockbreakers

D110IIs

Specification Unit D110IIs
Operating Weight Kg 2250
Impact Rate BPM 360-520
Impact Energy J 5800
Operating Oil Flow LPM 160-230
Operating Pressure bar 140 +/-5
Carrier Weight Ton 25-40
Tool Diameter mm 140

D130IIs

Specification Unit D130IIs
Operating Weight Kg 2600
Impact Rate BPM 320-420
Impact Energy J 6920
Operating Oil Flow LPM 170-240
Operating Pressure bar 145 +/-5
Carrier Weight Ton 35-45
Tool Diameter mm 155

D160IIs

Specification Unit D160IIs
Operating Weight Kg 3300
Impact Rate BPM 300-400
Impact Energy J 9100
Operating Oil Flow LPM 190-250
Operating Pressure bar 155 +/-5
Carrier Weight Ton 45-60
Tool Diameter mm 170

D200IIs

Specification Unit D200IIs
Operating Weight Kg 3800
Impact Rate BPM 250-350
Impact Energy J 10500
Operating Oil Flow LPM 220-350
Operating Pressure bar 155 +/-5
Carrier Weight Ton 50-70
Tool Diameter mm 180

Extra Large Rockbreakers

D300IIs

Specification Unit D300IIs
Operating Weight Kg 6200
Impact Rate BPM 250-350
Impact Energy J 12500
Operating Oil Flow LPM 220-400
Operating Pressure bar 160 +/-5
Carrier Weight Ton 60-90
Tool Diameter mm 195

M400IIs

Specification Unit M400IIs
Operating Weight Kg 7500
Impact Rate BPM 300-400
Impact Energy J
Operating Oil Flow LPM 300-400
Operating Pressure bar 140-160
Carrier Weight Ton 70-100
Tool Diameter mm 205

D500IIs

Specification Unit D500IIs
Operating Weight Kg 12900
Impact Rate BPM 200-300
Impact Energy J 19500
Operating Oil Flow LPM 300-450
Operating Pressure bar 160-180
Carrier Weight Ton 90-170
Tool Diameter mm 235

Product Details

DM Breaker Equipment is proud to offer DNB Rockbreakers. DNB Hydraulic Breakers have been one of the stalwart survivors in our tough and competitive market. With over 30 years of proven performance and reliability in the Australian market, the DNB is your first choice.


Imagine the worst to produce the best. Our experience in breaking Blue Granite, scientifically proven to be one of the hardest rocks in the world, has created this philosophy. In order to break one of the hardest rocks in the world, a hammer had to be produced, which was even stronger. That’s why DNB Rock Breakers are built with the hardest conditions in mind.


In all environmental conditions and in high production, DNB Breakers provide continuous breaking power, regardless of material. The best raw materials are used to build each part of the hammer because we know that replacing tools and repairing equipment is not only an inconvenience, it also means time away from work and profits.


Powerful impact energy and a variable impact rate increase breaking frequency while decreasing the time needed to get the job done.

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Ready to conquer tough rocks with efficiency and precision? Contact us today, and let's get started.

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