“R”type arms and“Z”type arms R

A.As the delivery pipes of''R''type distributed on the both sides of arm,so the whole machine is uniformly stressed,not like''Z''type.

B.‘’R‘’type arm structure can be fixed by hook when folding,which can avoid the dropping danger of arms,easy to operate。

C.''Z''type arm structure not easy to fix when folded,so that this leads to the arms falling down and safety problems.To prevent the boom down,tied the end of boom with a chain,it is manual operation.

D.''Z''type is widely used on truck mounted boom pump,because the arms can be supported by the support frame on chassis instead of hook.Normally speaking,the''R''type arm structure design is widely used among the professional manufacturer of placing boom,because it is more safe

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