Igama: Izicathulo ze-bulldozer 3 bar zenziwe ngensimbi ekhonjiwe, insimbi ekhonjiwe.
Material: ingxubevange steel noma ngokuvumelana nezidingo zamakhasimende.
Ubukhulu: Ngokusho kwemidwebo yobuchwepheshe.
Isakhiwo se-Shanvim track shoe:
Izicathulo zethrekhi ezivame ukusetshenziswa zihlukaniswe zibe izinhlobo ezintathu ngokusho kokuma komhlaba.Kunezinhlobo ezintathu zezimbambo zodwa, izimbambo ezintathu neziphansi eziyisicaba.Kukhona nezicathulo zethrekhi ezingunxantathu zomuntu ngamunye.Izicathulo zethrekhi eziqiniswe kanye zisetshenziselwa ikakhulukazi ama-bulldozer nogandaganda, ngoba lolu hlobo lwemishini ludinga izicathulo zethrekhi ukuze zibe nokudonsa okuphezulu ngaphambi kokulungiswa.Kodwa-ke, akuvamile ukusetshenziswa emishinini yokumba, futhi lolu hlobo lwesicathulo sethrekhi lusetshenziswa kuphela lapho uhlaka lokubhoboza lufakwe emshinini wokumba noma lapho kudingeka i-thrust enkulu evundlile.I-traction ephakeme iyadingeka lapho usuka enganeni, ngakho-ke ibha ephezulu yokukhasa (okungukuthi, i-crawler spur) izompintsha inhlabathi (noma izwe) phakathi kwama-crawler bars, bese ithinta ukuhamba kwe-excavator.
Isicathulo sethrekhi yensimbi singahlukaniswa sibe: ipuleti le-excavator, ipuleti likagandaganda, lezi ezimbili zivame ukusetshenziswa, kusetshenziswa insimbi yesigaba njengento eluhlaza.Kukhona nephansi elimanzi elisetshenziswa ogandaganda, abajwayele ukubizwa ngokuthi "amapuleti angunxantathu", okungamapuleti afakwe.Olunye uhlobo lwe-casting slab lusetshenziswa kuma-crawler cranes.Isisindo saleli slab sincane njengamakhilogremu angamashumi, futhi sifinyelela amakhulu amakhilogremu.