Mobile Primary Jaw Crusher — GNR Series

The Mobile Primary Jaw Crusher combines an armoured feeder hopper and a jaw crusher on a single chassis as a portable primary crushing unit. It accepts 0-1100 mm feed, delivers 0-250 mm product and works at 40-300 t/h depending on model. It is towed by a single truck and commissioned without foundations on hydraulic legs.

Working principle

Material is reduced by compression between a fixed jaw and an eccentric-shaft moving jaw; product discharges at the CSS setting. The unit handles the primary stage only; secondary and tertiary stages are added as separate units so the plant grows stage by stage.

Technical specifications

Feed 0-1100 mm · Product 0-250 mm · Armoured feeder, replaceable wear plates, frequency-controlled vibro-motor and raisable side walls are standard.

Material and application

The jaw compression principle suits every hardness and abrasivity class and is the correct primary choice for high-silica, abrasive rock such as granite and basalt, where it does not consume metal as fast as an impact primary. Jaw plates are austenitic manganese steel (Mn13/Mn18) that work-hardens under impact. Typical reduction 4:1-9:1.

Bridge to a full plant

This unit does not produce a full gradation; for a closed-circuit screened solution see Mobile Crushing Plants, and for the next stage see the Mobile Secondary Impact or Mobile Cubicizer units. Request a quote for model selection and pricing.