HR brake chamber  T30/30 , specification and size as follow :

type : 30/30

stroke : 64/64 mm

port thread : 2x3/8 "   NPT

bolt thread : 5/8"-11UNC

bolt centre : 120.7

push rod thread : 5/8"-18UNF

push rod length : 205

port angle : 90 degree

clamp angle : 45 degree

We have different sizes types can satisfy different demands from defferent clients .