Based on different working conditions, there are different materials for gyratory crusher concaves. The right gyratory crusher mantle material selection will prolong the wear parts’ span life and get more profits for customers.
Gyratory Crusher Concaves Structure
There are 3 layers of design in a gyratory crusher:
Upper Intake Liners
- Manganese alloys or WS5.5 alloy steel
- Low-alloy steel, impact-resistant
Chamber Mid Liners
- High manganese alloys or WS5.5 alloy steel
- Low-alloy steel, abrasion and impact resistant
Chamber Bottom Liners
- Low-alloy- steel, high abrasion, and impact resistant or WS7 alloy steel
- High-chrome special, maximum abrasion resistance
Gyratory Crusher Concaves Material Selection For Different Stone
The standard concave alloy is manganese, but depending on the feed characteristics a variety of other alloys can be chosen to achieve the best cost per produced ton. The upper concave tiers must withstand high impact forces. The lower tiers require maximum abrasion resistance.
Difficult and abrasive | Difficult and non-abrasive | Medium and abrasive | Medium and non-abrasive | Easy and abrasive | Easy and non-abrasive | ||
Upper Intake Liners | Mn14/Mn14Cr2 | √√ | √√√ | √√ | √√√ | √√ | √√√ |
Mn18/Mn18Cr2 | √√√ | √√ | √√√ | √√ | √√√ | √√ | |
WS5.5 alloy steel | Contact | Contact | Contact | Contact | Contact | Contact | |
Chamber Mid Liners | Mn14/Mn14Cr2 | √√ | √√ | √√ | √√√ | √√ | √√√ |
Mn18/Mn18Cr2 | √√√ | √√√ | √√√ | √√ | √√√ | √√ | |
WS5.5 alloy steel | Contact | Contact | Contact | Contact | Contact | Contact | |
Chamber Bottom Liners | Mn14/Mn14Cr2 | √ | √√√ | √ | √√√ | √ | √√√ |
Mn18/Mn18Cr2 | √√ | √√ | √√ | √√ | √√ | √√ | |
WS7 alloy steel | Contact | Contact | Contact | Contact | Contact | Contact | |
“√” means can be used;”√√” means good choice; “√√√” means recommended |