Penerangan Ram Piston
| Putzmeister | Schwing | Cifa | Reich | Sany | Elba | Zoomlion | Kyokuto |
| DN180 | DN180 | DN180 | DN180 | DN180 | Hari 160 | DN180 | Dn 205 |
| Dn 200 | Dn 200 | DN200 | DN200 | DN195 | DN180 | DN195 | DN225 |
| DN230 | Dn 230 | DN230 | DN230 | DN200 | DN200 | DN200 | DN230 |
| DN250 | Dn 250 | DN230 | DN230 | DN220 | |||
| Hari 260 | DN230 |
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