The bowl liner – also called the concave ring – is the fixed wear part of a cone crusher chamber. It is replaced together with the mantle, because a new mantle against a worn bowl liner produces an out-of-shape chamber and a coarser product.
Grindium casts bowl liners in Mn13Cr2 and Mn18Cr2 for coarse, medium and fine chambers, and in high chrome Cr26 for abrasive, low-impact duty. Liners are poured against a pattern matched to the crusher model and checked on the chamber profile before shipment.
Materials
Material
Hardness
Chamber
Best for
Mn13Cr2
HB 180-220 (to 450+ work hardened)
Coarse / medium
Hard rock, high impact
Mn18Cr2
HB 180-220 (to 500+ work hardened)
Coarse
Very hard, blocky feed
High chrome Cr26
HRC 58-62
Fine / short head
Abrasive, low-impact crushing
Crusher models covered
Symons 3 ft, 4 ft, 4-1/4 ft, 5-1/2 ft, 7 ft
Sandvik CH420-CH890, CS420-CS660
Metso HP200, HP300, HP400, HP500, GP200S-GP550S
Custom patterns from drawing or worn sample
Supply notes
Single weight 200-2,200 kg, depending on chamber
Supplied as a mantle + bowl liner pair on request
Hardness mapped at three heights, UT on thick sections
Packed in steel frame crates, 20-24 t per 20 ft container
The bowl liner (concave ring) is the fixed wear part of a cone crusher chamber. It is replaced together with the mantle, because a new mantle against a worn liner produces an out-of-shape chamber.
Which materials do you cast?
Mn13Cr2 and Mn18Cr2 for high-impact chambers, and high chrome Cr26 for abrasive, low-impact fine crushing.
Which crusher models can you fit?
Symons 3-7 ft, Sandvik CH/CS series, Metso HP/GP series, and any model where you can supply a drawing or a worn sample.
What is the MOQ and lead time?
MOQ is one set (mantle + bowl liner). Lead time is 30-45 days depending on pattern availability.
How is it packed?
Steel frame crates, 20-24 t per 20 ft container, marked by crusher position.
