

| Material | 50Mn/40Mn2 |
| Hardness | ROLLER SHELL HRC48-55 |
| SHAFT HRC51-56 | |
Quality type | Economic type,6 months construction area,for 20tons and less 20tons machines, such as PC 100,PC 200. |
Standard type quality, 12 months construction area,for mini excavators,20tons and less 20tons machines,such as Vi0 30,PC 100,PC200 | |
Heavy duty type quality, 12 months guadantee time, suits in any heavy duty applications like mining, quarry, forestry, etc,for more than 30 tons machines,such as ZAX 330, PC 1250,D10T. |


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