Blow bar is a crucial wear part on impact crusher. The good blow bars and right material options are so important to keep the crusher running safely and cost efficiently. ZTA-Inserted blow bar can extend 2-3 times wearlife than normal ones.
Following is the general guidance for Casting+ZTA selection:
Material Code | Description | Thickness of Blow bar (mm) | Length of Blow bar (mm) | Main application |
Casting matrix | Composite inserts |
S450 | Martensitic steel hardness BHN430-480 | ZTA Ceramic grits Hardness HV1600 | 80-100 | >1500 | Primary crushing Feed size(Max):1600mm |
S550 | Martensitic steel hardness BHN530-580 | ZTA Ceramic grits Hardness HV1600 | >100 | >1200 | Primary crushing Feed size(Max):1200mm |
C600 | Mid chrome white iron hardness BHN580-630 | ZTA Ceramic grits Hardness HV1900 | >100 | >700 | Secondary crushing Feed size(Max):400mm |
C650 | High chrome white iron hardness BHN630-680 | ZTA Ceramic grits Hardness HV1900 | >100 | >700 |
C700 | High chrome white iron hardness BHN650-700 | N/A | >100 | >700 |
