Hydraulic Breakers

Heavy-Duty Open Type Hydraulic Breaker (20G–50G Class)

Heavy open-type hydraulic breaker for 18–50 t excavators. 135–180 mm chisel, through-bolt design for mining and quarry production breaking.

Carrier range: 18 – 50 t excavators
Chisel diameter: 135 – 180 mm
Operating weight: 1,650 – 4,100 kg
Working pressure: 160 – 200 bar

Request a quote WhatsApp

✓ MOQ 1 set · OEM colour & logo available
✓ Bracket made to your pin size / coupler
✓ 12-month warranty · test report & inspection video
✓ Ships from Shanghai / Qingdao — FOB, CIF, DAP

Overview

Quick answerHeavy open-type hydraulic breaker for 18–50 t excavators. 135–180 mm chisel, through-bolt design for mining and quarry production breaking.

Our heavy open-type breakers follow the proven 20G, 30G, 40G and 50G class layout used in mining and quarrying worldwide. The open frame with heavy through bolts keeps the hammer light for its class and easy to inspect, while the large-diameter piston delivers the blow energy needed for primary and secondary breaking of hard rock.

Typical applications

Open-pit mining
Quarry production breaking
Oversize reduction on grizzlies
Large-scale foundation rock

Scope of supply

Breaker body, mounting bracket for your carrier, 2 hoses, 2 chisels (moil/flat/blunt to choice), nitrogen bottle and charging kit, tool box, operation manual.

Technical specifications

Heavy-Duty Open Type Hydraulic Breaker (20G–50G Class) specifications
Carrier range	18 – 50 t excavators
Chisel diameter	135 – 180 mm
Operating weight	1,650 – 4,100 kg
Working pressure	160 – 200 bar
Oil flow	130 – 290 L/min
Impact rate	230 – 650 bpm
Hose diameter	1" – 1-1/4"
Material	20CrMo cylinder, 42CrMo chisel
Certification	CE, ISO 9001
Warranty	12 months

Values are typical; final data is confirmed with the drawing for your carrier.

Key features

Production-class blow energy

Large piston and long stroke for primary breaking in hard granite and basalt.

Heavy through bolts

High-tensile through bolts with pre-load torque checked on every unit.

Interchangeable with common 20G–50G brackets

Pin and bracket dimensions can be matched to your existing setup.

Field-serviceable

Open frame gives direct access to bolts, accumulator and valve.

Model range

Class	Carrier (t)	Chisel Ø (mm)	Operating weight (kg)	Oil flow (L/min)	Pressure (bar)	Impact rate (bpm)
20G	18–25	135	1,650	130–170	160–185	400–650
30G	25–30	150	1,850	150–210	170–190	350–600
40G	30–40	160	2,700	180–240	170–200	300–500
50G	40–50	180	4,100	270–290	180–200	230–320

Frequently asked questions

Are these original Furukawa breakers?

No. They are our own breakers built to the same size class (20G–50G) so they can replace or complement those models; parts are sourced from our own supply chain.

Do you have an accumulator version?

Yes, accumulator-equipped models are available for carriers with fluctuating flow.

How do I choose the right hydraulic breaker size?

Match three numbers: your excavator operating weight, the auxiliary hydraulic flow (L/min) and the relief pressure (bar). The breaker’s recommended carrier range and flow window must cover your machine. Send us the carrier model and we will confirm the model and mounting bracket.

What is the difference between side, top and box type?

Side type is the most compact and economical; top type mounts in line with the dipper arm for straight-down breaking; box (silenced) type wraps the power cell in a damped housing for lower noise and better protection in urban work.

Start your order

Tell us your machine. We’ll match the attachment.

Send the carrier model, auxiliary oil flow and what you need to break, grab, cut or drill. You’ll get a matched model, drawing and price within one working day.