buyers often compare undercarriage prices first. Similar spec sheets make price the primary deciding factor. But the part that actually stops a machine in the field is rarely the frame. It's the seal.
Floating seals, FKM fluororubber seals, skeleton oil seals - on paper, they look interchangeable. They perform reliably in Southeast Asian mud and 50°C Middle Eastern quarries - low-cost alternatives simply cannot. Seal failure causes grease leakage, fast pin & bushing wear. Repair costs easily exceed initial savings.
2–200 tonne steel track undercarriage. Q345B main frame, full-penetration welded box-section structure. Frame keeps seal bores aligned under torsion & side loads. Good seals deliver long life only with rigid frame; top seals fail if frame twists.
For contractors operating in wet, abrasive or high-temperature environments, selecting an undercarriage ultimately means deciding how long your equipment stays operational. Our 65°C continuous temperature rating and optional FKM seals are engineered for these harsh working conditions.
