5-7 days for samples, 15-20 days for bulk production.
Packaging & deliver
Foam packed in inner machine,carton pack outside
7mm copper tube shipbuilding Heat Exchanger is made of copper tube with copper sheet ,enjoy advanced mechanical tube expander and double-flange aluminum fin structures.we produce is compact,reliable performance,wide varieties ,high temperature resistance and affordable price.
(1).Hihgly heat transfer coefficient
The copper tube expander makes copper tube contact the aluminum sheet and accelerate the turbulent flow,destroy the boundary layer ,and enhance the heat transfer coefficient .
(2).Excellent heat transfer performance.
This structure ,together with the rationally designed water route,tube distance and sheet distance offer excellent heat transfer performance,small air resistance,compact structure,light weight and other advantages.
(3).Frequently Used Fin type and remark
There's mould for normal fin type, and can followcustomized request.Please refer to Mould Specification for more details.