The LT105 Track-Mounted Jaw Crusher: Mobility Meets Robust Crushing Power

In the demanding world of aggregate production, recycling, and contract crushing, efficiency and flexibility are paramount. Equipment needs to move swiftly between sites, adapt to varying feed materials, and deliver consistent, high-volume output. Caterpillar (formerly ) recognized this need early on with the introduction of the Lokotrack LT105, a pioneering track-mounted mobile jaw crusher that set a benchmark for mobile primary crushing upon its release. While newer models exist within the Lokotrack range today, the LT105 remains a significant workhorse globally, renowned for its robust construction, reliable performance, and straightforward operation.

The Core: Proven C105 Jaw Crusher

At the heart of the LT105 lies the C105 single-toggle jaw crusher. This unit is engineered for heavy-duty primary crushing applications:

Feed Opening: A substantial 1060 mm wide by 700 mm deep (42” x 28”) opening allows it to handle large feed material common in quarrying and demolition.
Crushing Power: Driven by a potent Caterpillar diesel engine (typically ranging from 224 kW / 300 hp to 250 kW / 335 hp depending on specific configuration), the crusher delivers significant force for breaking hard rock like granite or basalt.
Optimized Cavity Design: The C105 features a deep symmetrical crushing chamber designed to maximize feed size capability and throughput while promoting efficient nip angles for effective size reduction.
Robust Construction: Heavy-duty fabricated steel components form the base frame and pitman assembly. High-quality bearings ensure durability under constant heavy loads.
Adjustable Settings: The closed-side setting (CSS), determining the final product size gradation, is easily adjustable using hydraulic tools via wedges located at both ends of the jaw plates. Settings typically range from around 70mm down to approximately 20mm (2.8” down to ~0.8”), offering flexibility for various end-product requirements.
Wear Parts: Utilizing easily replaceable manganese steel jaw dies protects critical components from abrasion.

Mobility Redefined: The Tracked Undercarriage

The defining feature of the LT105 is its fully integrated track-mounted chassis:

1. Purpose-Built Tracks: Equipped with durable crawler tracks featuring robust drive sprockets and rollers designed specifically for mobility across rough quarry terrain or construction sites. This eliminates dependence on