To support the company’s One Komatsu global strategy and the integration of their legacy companies into the Komatsu brand, sizers, reclaim feeders and surface feeder breakers will be rebranded to Komatsu natural yellow from the previous Joy orange. Displayed in the Komatsu booth at CONEXPO-CON/AGG 2023 this week is the newly rebranded yellow 1,800 t/h MVT-II 600 sizer but its larger sister machine, the MVT-II 800, capable of 3,700 t/h, has also incorporated the change.

The company states: “For waste reduction in the quarry and cement production process, the Komatsu MVT-II 600 sizer uses matched velocity technology (MVT) to generate far less fines in product and help minimise waste production and disposal costs. The process uses tension — rather than compression — which can save significant energy. Timed centre-sizing rolls enable teeth to mesh together and control product size in three dimensions.” The MVT-II 800 has the same attributes and is widely used in mining, particularly for coal overburden and industrial minerals. Both models can be installed at either a belt transfer point or fed by a feeder, based on the needs of the operation.

It adds that the no-clog crushing of the MVT-II 600 (and the MVT-II 800) can consistently crush a combination of hard abrasive minerals and wet sticky material. Engineered for lower cost of ownership, the MVT-II 600 has replaceable bolt-on roll wear segments and durable pick technology. Shaft assemblies include cast wear segments with replaceable teeth for extended life.

“The MVT-II sizer can be installed where many other crushing technologies would not fit and at a potentially lower cost. Ideal for mobile or underground applications with a small machine envelope, secondary sizers can often be installed between conveyor transfer points to reconcile material handling issues. The sizer can potentially reduce the number of crushing/dump stations required and can work with very large lump sizes to increase crushing ratios.”