Description
| GBN SERIES | GBN10T | GBN20T | GBN30T | GBN45T | GBN60T | GBN70T | GBN100T | GBN140T | GBN170T | |
|---|---|---|---|---|---|---|---|---|---|---|
| Operating Weight | (kg) | 135 | 145 | 180 | 250 | 310 | 380 | 570 | 890 | 1,200 |
| Tool (Moil Type) | (mm) | 40 | 45 | 53 | 60 | 70 | 75 | 90 | 100 | 125 |
| Operating Pressure (Breaker) | (bar) | 80~100 | 80~100 | 90~120 | 100~130 | 95~130 | 100~140 | 130~160 | 150~170 | 150~170 |
| Setting Pressure (Machine) | (bar) | 150 | 150 | 150 | 160 | 170 | 180 | 190 | 200 | 200 |
| Impact Rate | (bpm) | 800~1,400 | 700~1,200 | 600~1,100 | 500~1,000 | 450~1,000 | 475~950 | 480~850 | 450~780 | 420~730 |
| Accumulator Pressure (N2-Gas) | (bar/psi) | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
| Back Head Pressure (N2-Gas) | (bar/psi) | 14/203 | 14/203 | 16/232 | 16/232 | 16/232 | 16/232 | 16/232 | 16/232 | 16/232 |
| Required Oil Flow | (lpm) | 15~30 | 20~35 | 25~50 | 30~60 | 34~60 | 40~80 | 45~85 | 85~110 | 100~120 |
| Suitable Excavator | Min (t) | 0.8 | 1.2 | 2.5 | 3 | 3.5 | 6 | 6 | 10 | 15 |
| Max (t) | 2.5 | 3 | 4.5 | 5.5 | 7 | 9 | 13 | 17 | 20 | |
| Suitable (t) | 1 | 2 | 3 | 5 | 6 | 7 | 10 | 14 | 17 | |
Back Head
Larger gas chamber design brings the high impact power.
Cylinder
Optimized cylinder groove design and unique balance and ratio improve anti heating of oil temperature and make stable operation possible and reduce the damages like scratches.
Through Bolts
High level of raw material adopting on through bolts to improve durability and help better supporting whole hammer body structure in stable.
Housing
Optimized housing design by 3D modeling and lower side is reinforced by high abrasion-resistant steel.
Piston
Excellent durability and special heat-treatment technology. Higher impact power with extended piston stroke.
Valve
Low-resistance reduces the hydraulic fluid temperatures which increase the efficiency. Korean built, quality hydraulic hammer
Tool Retainer
Long tool pin protects the front head from blank firing and has a long life. Dual tool retainer pins ensures correct tool alignment and dispersion of tool wear. (GBN100T above)
Wearing Plates and Buffers
Absorbs vibration to prevent impulses between carrier and hammer, also increasing durability of hammer housing and spare parts’ life time.
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