# Hydraulic breaker(Hammer).

With our hydraulic breaker series products, MJB BREAKER acquired the international patent and won a various prizes in honor of its technical excellency. Being equipped with an integrated production system and accompanied by the unique valve operation system that has been developed to suit domestic working environment, these products will give you great satisfaction with the maximized efficiency, superior maintenance and strong crushing force.

- Big power and Great performance.
- Excellent durability.
- Low noise and vibration.
- Precise operation.
- Fantastic efficiency at hard and sticky rock.


# Top direct/adaptor type, high quality hydraulic breaker.

1. Model ; MJB 200.
- Impact energy ; 434 Joule(320 ft-lbs).
- Operating weight ; Box type : 97 kgs. Top direct type : 75 Kgs,

Side type : 83 Kgs.
- Overall height ; mm
- Operating pressure ; 80-110 kgf/cm2.
- Number of blow ; 800~1200 bpm.
- Chisel diameter ; dia. 40 mm
- Applicable excavator ; 0.7~1.3 ton.

2. Model ; MJB 300.
- Impact energy ; 543 Joule(400 ft-lbs).
- Operating weight ; Box type : 127 kgs, Top direct type : 103 Kgs,

Side type : 111 Kgs.
- Overall height ; mm
- Operating pressure ; 80-110 kgf/cm2.
- Number of blow ; 620~1050 bpm.
- Chisel diameter ; dia. 50 mm
- Applicable excavator ; 1.2~2.2 ton.

3. Model ; MJB 400.
- Impact energy ; 651 Joule(480 ft-lbs).
- Operating weight ; Box type : 161 kgs. Top direct type : 132 Kgs,

Side type ; 137 Kgs.
- Overall height ; mm
- Operating pressure ; 90-120 kgf/cm2.
- Number of blow ; 570~97 bpm.
- Chisel diameter ; dia. 58 mm
- Applicable excavator ; 2.1~4.0 ton.

4. Model ; MJB 500.
- Impact energy ; 1,017 Joule(750 ft-lbs).
- Operating weight ; Box type : 298 kgs. Top direct type : 250 Kgs,

Side type : 267 Kgs.
- Overall height ; mm
- Operating pressure ; 145-170 kgf/cm2.
- Number of blow ; 450~750 bpm.
- Chisel diameter ; dia. 70 mm
- Applicable excavator ; 4.8~8.0 ton.