Global ꞏ August 2019

Blow bars easy to hardface

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Description of the case

Original blow bars: 16% Mn casting.  Used in an open pit mine crushing stone to gravel


Total weight: 380 kg


Weight exposed to wear: 80 kg

Original life time: 100—120 h


Upgraded to Hardox® 400 with some hard facing


New life time: 400 h

Cheaper life time cost: 300%

Case details

Key success factors

Lower lifetime costs: 300%

New solution
Hardox® 400, : About 100 mm
Old solution

Mn casting: About 100mm

Industry and wearpart
Mining Fixed , Impact crushers , Blow bars