| 摘要 |
The cutter has a pump to produce compressed air, and/or a compressed air connection. At least one compressed air line (27,28) leads into at least one chamber (11) between the shaft bearing seal (12) and compressed air penetrable seal (13-15) for the entry area of the cutter shaft (3) into the working chamber (4), and/or into at least one chamber located in the compressed air penetrable seal. The compressed air line is formed partially through at least one longitudinal and transverse bore in the cutter shaft. |
