JBN SERIES (External Valve Type)
Upper side of housing cover is stronger than other hammers with additional steel bars.
Also, lower side of housing cover is reinforced for wear resistance.
* Rock Breaker
Special Features
· Box typed housing design
· Soundproofing system for downtown area under construction · Polyurethane buffers reduces noise and absorbs vibration
· MC Nylon plates are designed for fit tight on surrounded four sides · Low recoil movements for operator’s safe condition
· High impact energy & Low noise level
· High performance ability & Low maintenance cost · Total 22 models of silenced type
· Option item : Auto lubricant system.
· Rock breaker
-
JBN645
- JBN745
-
JBN770
-
JBN800
-
JBN900
-
JBN1000
|
HEAVY WEIGHT BREAKERS External Valve type (With Accumulator) |
|
Description |
Model |
Unit |
JBN645 |
JBN745 |
JBN770 |
|
Operating |
Silenced |
Kg |
2,850 |
3,300 |
3,800 |
|
lb |
6,283 |
7,275 |
8,378 |
||
|
Weight (Tool + M / C) |
Open Top |
Kg |
2,950 |
3,400 |
3,900 |
|
lb |
6,504 |
7,496 |
8,598 |
||
|
Main Body Weight |
Kg |
1,250 |
1,260 |
1,690 |
|
|
Tool (Moil type) |
Weight |
Kg |
174 |
236 |
279 |
|
Diameter |
mm |
155 |
165 |
175 |
|
|
Operating Pressure (Breaker) |
bar |
150 ~ 190 |
160 ~ 190 |
160 ~ 200 |
|
|
psi |
2,134 ~ 2,702 |
2,276 ~ 2,702 |
2,276 ~ 2,845 |
||
|
Setting Pressure (Machine) |
bar |
240 |
240 |
250 |
|
|
psi |
3,480 |
3,480 |
3,625 |
||
|
Impact Rate |
bpm |
300 ~ 500 |
300 ~ 500 |
250 ~ 500 |
|
|
Accumulator Pressure (N2-Gas) |
bar / psi |
60 / 870 |
|||
|
Back Head Pressure (N2-Gas) |
bar / psi |
17 / 246 |
17 / 246 |
18 / 261 |
|
|
Required Oil Flow |
l / min |
180 ~ 250 |
180 ~ 250 |
210 ~ 280 |
|
|
g / min |
47.5 ~ 66 |
47.5 ~ 66 |
55 ~ 74 |
||
|
Suitable Excavator |
Min |
ton |
33 |
33 |
45 |
|
Max |
ton |
50 |
50 |
55 |
|
|
Suitable |
ton |
40 |
40 |
50 |
|
-
JBN800
-
JBN900
-
JBN1000
|
Description |
Model |
Unit |
JBN800 |
JBN900 |
JBN1000 |
|
Operating |
Silenced |
Kg |
4,400 |
6,300 |
10,500 |
|
lb |
9,700 |
13,889 |
23,149 |
||
|
Weight (Tool + M / C) |
Open Top |
Kg |
4,500 |
6,430 |
10,750 |
|
lb |
9,921 |
14,176 |
23,700 |
||
|
Main Body Weight |
Kg |
1,700 |
2,720 |
4,800 |
|
|
Tool (Moil type) |
Weight |
Kg |
326 |
415 |
470 |
|
Diameter |
mm |
190 |
208 |
230 |
|
|
Operating Pressure (Breaker) |
bar |
160 ~ 200 |
180 ~ 205 |
220 ~ 240 |
|
|
psi |
2,276 ~ 2,845 |
2,610 ~ 2,973 |
3,190 ~ 3,480 |
||
|
Setting Pressure (Machine) |
bar |
250 |
250 |
270 |
|
|
psi |
3,625 |
3,625 |
3,915 |
||
|
Impact Rate |
bpm |
250 ~ 500 |
170 ~ 220 |
140 ~ 170 |
|
|
Accumulator Pressure (N2-Gas) |
bar / psi |
60 / 870 |
|||
|
Back Head Pressure (N2-Gas) |
bar / psi |
18 / 261 |
18 / 261 |
18 / 261 |
|
|
Required Oil Flow |
l / min |
220 ~ 290 |
230 ~ 300 |
360 ~ 430 |
|
|
g / min |
58 ~ 76.5 |
61 ~ 79 |
95 ~ 114 |
||
|
Suitable Excavator |
Min |
ton |
45 |
55 |
70 |
|
Max |
ton |
70 |
100 |
150 |
|
|
Suitable |
ton |
55 |
70 |
100 |
|
|
Description |
Model |
Unit |
JBN645 |
JBN745 |
JBN770 |
JBN800 |
JBN900 |
JBN1000 |
|
Operating |
Silenced |
Kg |
2,850 |
3,300 |
3,800 |
4,400 |
6,300 |
10,500 |
|
lb |
6,283 |
7,275 |
8,378 |
9,700 |
13,889 |
23,149 |
||
|
Weight (Tool + M / C) |
Open Top |
Kg |
2,950 |
3,400 |
3,900 |
4,500 |
6,430 |
10,750 |
|
lb |
6,504 |
7,496 |
8,598 |
9,921 |
14,176 |
23,700 |
||
|
Main Body Weight |
Kg |
1,250 |
1,260 |
1,690 |
1,700 |
2,720 |
4,800 |
|
|
Tool (Moil type) |
Weight |
Kg |
174 |
236 |
279 |
326 |
415 |
470 |
|
Diameter |
mm |
155 |
165 |
175 |
190 |
208 |
230 |
|
|
Operating Pressure (Breaker) |
bar |
150 ~ 190 |
160 ~ 190 |
160 ~ 200 |
160 ~ 200 |
180 ~ 205 |
220 ~ 240 |
|
|
psi |
2,134 ~ 2,702 |
2,276 ~ 2,702 |
2,276 ~ 2,845 |
2,276 ~ 2,845 |
2,610 ~ 2,973 |
3,190 ~ 3,480 |
||
|
Setting Pressure (Machine) |
bar |
240 |
240 |
250 |
250 |
250 |
270 |
|
|
psi |
3,480 |
3,480 |
3,625 |
3,625 |
3,625 |
3,915 |
||
|
Impact Rate |
bpm |
300 ~ 500 |
300 ~ 500 |
250 ~ 500 |
250 ~ 500 |
170 ~ 220 |
140 ~ 170 |
|
|
Accumulator Pressure (N2-Gas) |
bar / psi |
60 / 870 |
||||||
|
Back Head Pressure (N2-Gas) |
bar / psi |
17 / 246 |
17 / 246 |
18 / 261 |
18 / 261 |
18 / 261 |
18 / 261 |
|
|
Required Oil Flow |
l / min |
180 ~ 250 |
180 ~ 250 |
210 ~ 280 |
220 ~ 290 |
230 ~ 300 |
360 ~ 430 |
|
|
g / min |
47.5 ~ 66 |
47.5 ~ 66 |
55 ~ 74 |
58 ~ 76.5 |
61 ~ 79 |
95 ~ 114 |
||
|
Suitable Excavator |
Min |
ton |
33 |
33 |
45 |
45 |
55 |
70 |
|
Max |
ton |
50 |
50 |
55 |
70 |
100 |
150 |
|
|
Suitable |
ton |
40 |
40 |
50 |
55 |
70 |
100 |
|
※ Above specifications are subject to change without prior notice for the improvement in quality. | Rock Breaker