NW1213™ impact crushing plant - NW1213™ primary crushing plant is built with the ® NP1213™ impact crusher as the core, thanks to its proven track record in mobile applications. The plant can be fed by wheel loader, excavator or dump truck. Smooth operation is ensured by innovations such as hydraulically fine-adjustable support legs.portable impact crusher northwest, NW Series™ vertical shaft impactor (VSI) plants - The feed comes typically from the portable NW or mobile cone crusher or feeding conveyors directly to the Barmac VSI or a screen. From the cone crusher material goes back to the screen or as an end product. NW portable Barmac plant can be equipped with or without screen in open- or close circuit. The NW.