The Komatsu ZB21 bolter is designed to streamline the entire bolting cycle, allowing operators to install bolts and screens from within a protected enclosure—enhancing safety while reducing cycle times. Its innovative bolting head features minimal moving parts for smooth operation and increased uptime. The system supports up to four major bolt types, with two available from a single carousel, and offers full tunnel coverage—backs, walls, and even the face. Whether diesel or battery-electric, the

1.6K shares · 222 comments | The D475A-8 is the largest #Komatsu...

The Komatsu D475 Dozer Better Than The Caterpillar D11 #komatsu #dozer #dozeroperator #d475a #caterpillar #caterpillarequipment #d11 #bigmachine | Heavy Steel Marvels

Read the story on this new Komatsu D475A-8 dozer in the next issue of the magazine. The 120 tonne machine is tasked with ripping extremely hard silica sand deposits in a Scottish quarry. #komatsu #komatsueurope #dozer #bulldozer #komatsud475 #komatsu475 #quarry #crushingandscreening #engineering #excavstor #construction | Awesome Earthmovers

Scale Earthmoving produced Komatsu D575A dozer model at The link Club event | Awesome Earthmovers