According to the tyre dimension
1) Tyre changer for minitype and middle-sized tyre
2) Tyre changer for large scale tyre
Generally speaking , the minitype tyre changer is used to mount and demount the tyre which dimension is below 20inch ;  the middle-sized tyre changer is used to mount and demount the tyre which dimension can reach 24inch ; And the large scale tyre changer is used to mount and demount the tyre which dimension is over 24inch.

Tire changer machine maintenance
1) working up to 10 hours,  check and clean all lubrication systems.
2) frequently clean the surface to make it clean.
3) after working 15 hours, check the pipeline to see whether there is leakage leakage. If so, immediate repair.
4) after using the  devices, disconnect power and air strip.