SIMAQ DB 200DX
Hydraulic breaker SIMAQ DB 200DX
Breaks concrete and rock, machine-mounted.
View details5-minute training
5 minHow to use the hydraulic breaker
Run a hydraulic breaker with the chisel at 90°, down-pressure before you fire, breaking from an edge and moving the chisel if it hasn't broken in 15–30 seconds. SIMAQ has three, by carrier: DB 40V for skid steers, DB 60V for backhoes and DB 200DX for 20 t excavators. What damages it most is dry-firing, with no material under the chisel.
Also called: hydraulic hammer, rock breaker
The hydraulic breaker shatters concrete and rock mounted on your carrier. Chisel technique —and never dry-firing— is what protects the tool. If the breaker doesn't match your machine's weight and flow, no technique will save it.
- 01
Match the breaker to your carrier
The DB 40V needs 35–70 L/min (skid steer), the DB 60V 40–110 L/min (backhoe) and the DB 200DX 120–170 L/min (20 t excavator). If your machine can't supply that flow it underperforms; too much and it overheats.
- 02
Set the chisel perpendicular
Rest the chisel at 90° to the surface and apply down-pressure (preload) before percussing.
- 03
Start at the edge, not the center
Break from a free edge inward, in bites. Find the fracture plane; don't punch one deep hole.
- 04
Reposition every 15–30 seconds
If it hasn't broken by then, move the chisel. Pounding one spot overheats and glazes the steel.
- 05
Grease the chisel every 2 hours
With the breaker vertical and the chisel resting on the ground, grease until you see it come out under the housing. Without grease, the bushing and chisel wear out fast.
Do this
- Always keep down-pressure (preload) while percussing.
- If it hasn't broken in 15–30 s → move and find a free edge.
- Grease the bushing every 2 hours, with the tool vertical.
Avoid this
- NEVER dry-fire (no material under the chisel): it wrecks the breaker.
- Don't use the chisel as a pry bar to move rubble.
- Don't percuss more than ~30 s on the same spot.
- Don't work with the carrier's cylinders at the end of their stroke: the shock goes into the machine.
Safety
- Closed cab or face shield, glasses, gloves and hearing protection.
- Exclusion zone: flying chips travel far.
- Never anyone under the boom or in the line of fire.
Test yourself
Got it down?
Self-check
Each practice: do it or avoid it? Tap your answer.
Don't percuss more than ~30 s on the same spot.
Don't use the chisel as a pry bar to move rubble.
Always keep down-pressure (preload) while percussing.
Grease the bushing every 2 hours, with the tool vertical.
If it hasn't broken in 15–30 s → move and find a free edge.
NEVER dry-fire (no material under the chisel): it wrecks the breaker.
Don't work with the carrier's cylinders at the end of their stroke: the shock goes into the machine.
Equipment in this training
Apply it on these machines
Buying guides
Clear up your questions before you quote
Guide · 7 min
Which hydraulic breaker fits your machine? Choosing by weight and oil flow
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When a wheelbarrow is enough, when a 4×4 dumper like the Urban 1500 multiplies progress and when you need a skid steer. Simple criteria and common mistakes.
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ReadFAQ
What people ask about the hydraulic breaker
Which hydraulic breaker fits my machine?
It depends on your machine's weight and hydraulic flow: DB 40V for skid steers (35–70 L/min), DB 60V for backhoes (40–110 L/min) and DB 200DX for 20 t excavators (120–170 L/min). The guide on choosing a breaker for your machine has the detail.
How often do you grease the chisel?
Every 2 working hours, with the breaker vertical and the chisel resting down, until grease shows under the housing. Inspect the chisel and its pins every 10 hours or weekly.
What is dry-firing and why does it damage the breaker?
It's firing when the chisel isn't loaded against material, or still hammering after the piece has broken. All the energy bounces back into the breaker and its pins instead of going into the rock.
Why won't the chisel break anything and gets hot?
Because you've stayed too long on one spot. If it hasn't broken in 15–30 seconds, move and look for a free edge or the fracture plane.
Can you use the chisel to move rubble?
No. Prying or sweeping with the chisel bends it and damages the bushings; move rubble with the bucket.
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