bladder

Bladder key note:
For BOM, there is no any other special meaning for tire curing bladder choosing, just from the tire factories. I have consulted with my technician friends from two bladder factories; they also meet “BOM” before, but no effect for bladders.

A, B, AB, C type bladder differences:

a. Shape difference:
A TYPE: The upside is close, the other downside is open.

B TYPE: The upside and downside have the same technical parameters.

AB and C TYPE: The upside and downside have the different technical parameters.

Production Equipment difference:
A TYPE is the first and oldest vulcanizing machine to produce which almost has been eliminated now.
AB TYPE is just the upgrade type for A TYPE in some changes of vulcanizing machine which also is under eliminating now.
B TYPE is the normal and maximum type now which use the latest vulcanizing machine .

The different bladders for Radial and bias tire
* In the bladder code , I mean B285R20-1 , u see there is word ” R ” which is for Radial tire , and if no R , just like B400-17-1 which is for bias tire .
* All the bladder factories have different bladder code which depends on the factories, but the same thing is “R” for Radial tire , and no ” R ” for Bias tire .
* And for Radial tire bladder( less than 22kgs) , the producing technique normally is Injection , the bias tire bladder(more than 22kgs ) normally is mold press.

1. A TYPE RADIAL TYRE CURING BLADDER