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The undercarriage pontoon fit excavator to work in marshland or water less than 1.5M depth. - details see: https://www.machineto.com/pontoon-for-excavator-model-zd210-from-czdm-china-10107154

1.The undercarriage pontoon fit excavator to work in marshland or water less than 1.5M depth. Fitting any brand and many models excavator,such as HITACHI ZX210 ZD200, CAT320, and so on.just need to know the sizes between hole and hole.then we designning and producing central frame for the pontoon and excavator.

2.There are 4 models with the pontoon:ZD120 / ZD200 / ZD210 / ZD240, and ZD120 / ZD200 have 2 chians on them,others are 3 chians on them to be more withstand pressure.

3. The material is from Shanghai Kobelco ,it is more wear resistant ,and the wearing strip Imported from Japan.

4. The material is from Shanghai Kobelco ,it is more wear resistant ,and the wearing strip Imported from Japan,and the thickness is 8mm. The running pulley is 80mm diameter ,to be more wear resistant , other suppliers, its 70mm .

5. There are three maintenance holes on each pontoon,it is easy to repair,and it is unique in China,we have apply for patent for it .