Compared with similar products of other companies, Yantai Rocka hydraulic breaker-silent series Rocka straight series breaker has a stronger impact force-the best design method is used; it is made with the smallest number of parts and the number of parts is small. Few failures, easy to repair and guarantee...
Compared with similar products of other companies, the Rocka straight series hammer has a stronger impact
-The excavator hammer uses the best design method; it is manufactured with the smallest number of parts, the number of parts is small, the fault is small, and it is easy to repair and maintain
| SPECIFICATION | Unit | SK20G | SK81 | SK100 | SK121 | SK131 | SK141 |
|---|---|---|---|---|---|---|---|
| weight | kg (lbs) |
1450 (3190) |
1760 (3880) |
2100 (4620) |
2490 (5478) |
3100 (6834) |
3909 (8615) |
| length | mm (in) |
2691 (105) |
2796 (110) |
3215 (127) |
3297 (130) |
3300 (130) |
3709 (145) |
| Hydraulic oil flow | l/min (gpm) |
130 ~ 150 (34.3 ~ 39.6) |
120 ~ 170 (31.7 ~ 44.9) |
170 ~ 240 (44.9 ~ 63.4) |
180 ~ 250 (47.5 ~ 66) |
200 ~ 250 (52.8 ~ 66) |
200 ~ 290 (52.8 ~ 76.5) |
| Work pressure | bar (psi) |
160 ~ 180 (2133 ~ 2417) |
160 ~ 180 (2275 ~ 2560) |
160 ~ 180 (2275 ~ 2560) |
160 ~ 180 (2275 ~ 2560) |
170 ~ 190 (2417 ~ 2702) |
160 ~ 180 (2275 ~ 2560) |
| Accumulator pressure | bar (psi) |
55 ~ 60 (782 ~ 853) |
55 ~ 60 (782 ~ 853) |
55 ~ 60 (782 ~ 853) |
55 ~ 60 (782 ~ 853) |
55 ~ 60 (782 ~ 853) |
55 ~ 60 (782 ~ 853) |
| Nitrogen pressure of rear cylinder | bar (psi) |
16.5 (235) |
16.5 (235) |
16.5 (235)) |
16.5 (235) |
16.5 (235) |
16.5 (235) |
| Strike frequency | bpm | 300 ~ 600 | 300 ~ 500 | 300 ~ 450 | 300 ~ 450 | 250 ~ 400 | 250 ~ 400 |
| Drill rod diameter | mm (in) |
135 (5.3) |
140 (5.49) |
150 (5.88) |
155 (6.07) |
165 (6.47) |
175 (6.86) |
| Hydraulic tubing diameter | in | 1 | 1 | 1 | 1-1/4 | 1-1/4 | 1-1/4 |
| Impact | joule | 3288 | 4270 | 5694 | 7117 | 9965 | 12812 |
| Equipped with vehicle weight | ton |
18 ~ 23 | 18 ~ 26 | 25 ~ 30 | 28 ~ 35 | 30 ~ 30 | 40 ~ 55 |
| SPECIFICATION | Unit | SK43 | SK45 | SK50 |
|---|---|---|---|---|
| weight | kg (lbs) |
375 (826) |
580 (1278) |
868 (1914) |
| length | mm (in) |
1719 (68) |
2096 (82) |
2326 (91) |
| Hydraulic oil flow | l/min (gpm) |
50 ~ 90 (13.1 ~ 23.6) |
60 ~ 100 (15.8 ~ 26.3) |
80 ~ 110 (21.1 ~ 29.1 |
| Work pressure | bar (psi) |
120 ~ 150 (1706 ~ 2133) |
130 ~ 150 (1849 ~ 2133) |
140 ~ 160 (1991 ~ 2275 |
| Nitrogen pressure of rear cylinder | bar (psi) |
16.5 (235) |
16.5 (235) |
16.5 (235) |
| Strike frequency | bpm | 400 ~ 950 | 400 ~ 950 | 350~700 |
| Drill rod diameter | mm (in) |
75 (2.95) |
85 (3.34) |
100 (3.94) |
| Hydraulic tubing diameter | in | 1/2 | 3/4 | 3/4 |
| Impact | joule | 1158 | 1423 | 2135 |
| Equipped with vehicle weight | ton | 6.0 ~ 9.0 | 7.0 ~ 14 | 11~16 |
| SPECIFICATION | Unit | SK20 | SK30 | SK40 |
|---|---|---|---|---|
| weight | kg (lbs) |
92 (202) |
150 (330) |
279 (614) |
| length | mm (in) |
1262 (50) |
1342 (53) |
1600 (63) |
| Hydraulic oil flow | l/min (gpm) |
20 ~ 40 (5.25 ~ 10.5) |
30 ~ 50 (7.9 ~ 13.2) |
40 ~ 90 (10.5 ~ 23.8) |
| Work pressure | bar (psi) |
90 ~ 120 (1280 ~ 1706) |
90 ~ 120 (1280 ~ 1706) |
110 ~ 140 (1564 ~ 1990) |
| Nitrogen pressure of rear cylinder | bar (psi) |
16.5 (235) |
16.5 (235) |
16.5 (235) |
| Strike frequency | bpm | 700 ~ 1200 | 600 ~ 1100 | 500 ~ 900 |
| Drill rod diameter | mm (in) |
45 (1.77) |
53 (2.09) |
68 (2.68) |
| Hydraulic tubing diameter | in | 1/2 | 1/2 | 1/2 |
| Impact | joule | 284 | 427 | 711 |
| Equipped with vehicle weight | ton | 1.3 ~ 3.0 | 2.5 ~ 4.5 | 4.0 ~ 7.0 |
*The specifications of the hydraulic tools of the Yantai Rocka breaker manufacturer are subject to change without notice.