- Advance borehole drilling; advance support; direct observation of lithology change; easy to draw geological map.
- Hardox plate, composite chromium-carbide wear-resistant plate as well as hard alloy block with high wear resistance are materials of the cutter-head, which ensures long service time.
- Double row cylindrical roller thrust bearing is used in the masterdrive, ensuing long service lifetime and high safety.
- Reliable and high-efficient PLC control system, real time on-line monitoring and data collection.
- Innovative multi-material transport system ensures safety and high efficiency in the process of material transportation.
- Equipment is easy to dismantle and install due to proper allocation of equipment.
- Foam system with single tube and single pump performs reliably and its injection parameters can be consecutively adjusted.
|Product type ||Double-shield |
|Equipment model ||ZTT5490 |
|Excavation diameter ||5490mm |
|The whole machine’s length ||310m |
|thrust stroke ||＞1700mm |
|The maximum designed advance rate ||120 mm/min |
|The maximum auxiliary advance rate ||120 mm/min |
|The minimum turning radius ||500m |
|Designed service lifetime of main parts ||≥15000h |