Mobile Secondary Impact Crusher — M-DMK Series

The Mobile Secondary Impact Crusher gathers a feeder hopper and secondary HSI crusher on one platform. Feed 0-350 mm, product 0-50 mm, capacity 40-350 t/h. A by-pass screen feeder makes it strong for road/sub-base material; models M-DMK 01/02/03. The Mobile Secondary Impact Crusher gathers a feeder hopper and a secondary HSI crusher on a single chassis as a portable secondary unit towed by one truck. It accepts 0-350 mm feed, delivers 0-50 mm product and works at 40-350 t/h. It stands out in road and sub-base material production. Working principle The same impact principle as the primary, with a smaller inlet and closer apron, gives a more cubical product. The feeder pan has a screen plus by-pass conveyor; soil-laden fines are separated to stock before the crusher, which lowers wear. Fed by excavator/loader, or by truck with an add-on hopper. Material and application It is the best choice for sub-base production for road contractors and is ideal in limestone and river gravel. It accepts basalt, but at high Ai the blow-bar life shortens, so a cone/cubicizer should be considered for such duties. Blow bars: high-chrome for limestone, manganese/martensitic for river/mixed feed with metal risk. Typical reduction ~10:1. Bridge to a full plant For full gradation and screening see the Mobile Closed-Circuit Crushing-Screening Plants, and for the upper stage see the Mobile Primary units. Request a quote for model and pricing. S: What is it used for? C: Secondary crushing and sub-base/road material production. S: Is there a by-pass screen? C: Yes, the feeder-pan screen separates soil-laden fines before the crusher. S: What is the feed size? C: 0-350 mm feed, 0-50 mm final product. S: How is it fed? C: By loader/excavator; also by truck with an add-on hopper. S: What if I need screening? C: For a full gradation choose a Mobile Closed-Circuit Crushing-Screening Plant.