Deep penetration rock cores with the highest possible plunging characteristics are used in a dense medium. Provide good plunging characteristics. Self-sharpening.
| Rock Crowns CATERPILLAR System J | ||||||
| Catalog number | Designation | A (mm) | B (mm) | C (mm) | D (mm) | Weight (kg) |
| 1U3302RC | J300 | 100 | 100 | 265 | 70 | 5,7 |
| 1U3352RC | J350 | 110 | 110 | 290 | 87 | 8,1 |
| 7T3402RC | J400 | 110 | 150 | 320 | 102 | 10 |
| 1U3452RC | J460 | 137 | 145 | 356 | 115 | 16 |