Compared with similar products of other companies, Yantai Rocka hydraulic breaker-triangular series Rocka straight series breaker has a stronger impact force-the best design method is used; it is made with the least 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
-Excavator breakerUse the best design method; Manufactured with the smallest number of parts, fewer parts, fewer failures, and easy repair and maintenance
| 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 Yantai Rocka hydraulic tools are subject to change without notice.
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