The Mineral Sizer is the latest in the McLanahan range of Direct-Drive Crushing Sizers, designed based on customer feedback and with ease of maintenance and low cost of operation in mind. These machines produce a more consistent size fraction for more precise process flow.
McLanahan Mineral Sizers feature a unique design. A scrolled tooth pattern allows for the capturing of larger lumps and the correct positioning for crushing. The roll segments are designed for either quick hammer replacement or complete segment replacement without having to remove the roll shafts. The roll shaft assembly is also simple and easy to remove and replace, allowing for less downtime since there is no need to dismantle the gearbox to release the shaft.
The McLanahan Mineral Sizer also features an optional unique breaker bar design for simplified adjustment and removal. The breaker bar can eliminate slabby material escaping the machine and deliver a higher ratio of reduction. With its positioning at the underside of the frame in between each roll shaft, the height is adjusted by using two hydraulic cylinders and shims. The breaker shaft wear segments are designed for easy removal and replacement using a hydraulic fastener system. To remove the breaker bar, the operator trams the machine out of the feed stream and into the maintenance position, then lowers the breaker bar to the floor grate. This places the breaker bar in an ergonomically friendly maintenance position.
A rail tramming system forms part of the tramming support frame, which also houses hydraulic locating pins. Both drives are positioned well forward of the crushing chamber, reducing the possibility of contamination from spillage. The tramming system is operated from the control panel, which also includes the integration of locating sensors for correct positioning.
McLanahan Mineral Sizers offer a dual drive, which offers significant benefits for access, operation and flexibility of maintenance and includes options for either parallel shaft or right-angled orientation.
Other features of the McLanahan Mineral Sizer include remote sensing, condition monitoring, auto lubrication, auxiliary platform and cooling system.