The zero shrinkage automatic vertical expander is a completely automated tube expansion machine that is designed for the mass production of air-conditioning heat exchangers.

Parameters can be adjusted automatically for various exchanger coil types. Set-up data for each coil type can be memorized. This vertical expander is designed for speed and maximum production output.

This machine is a fully automatic tube expanding machine ideal for the mass production of heat exchangers used in air-conditioning units.

This machine is a fully automatic tube expanding machine ideal for the mass production of heat exchangers used in air-conditioning units.

When expanding, the expansion rod and expansion bullet go into the copper tube in order to make the tube wide enough to cling to the fins.

It finishes the technological processes of tube expansion, orifice expansion and flanging all in one complete working cycle. The production efficiency of the vertical expander is outstanding.

Two ends of the work piece are held in a fixed position, then the tube is expanded. The length of the work piece does not change, without shrinkage, reducing wasted material by 3-5%

High/low row expanding does not require a change of the U - receiver and expanding rods. Automatic adjustment can be realized by setting program parameters

The horizontal combined expander features CNC programmability with automatic shifting, 1-n tube processing, and large coil expansion.