Special Tube Expander

FINNED

Finned

This tool expands thin wall tubes of copper, brass or aluminum to fix the fins firmly, over the entire length of the tubes.

With this operation the thermal transmission between fins and tubes will be optimized.

This too, normally is supplied without a mandrel extension, that is brazed accordingly the customer needs.

Manufactured to OD tubes from 1/4” up 1”.

TAPERED EXPANDER

It is used to expand the tubes inside a tapered bore. Used in paper mills equipment.

STEP EXPANDER

Provides faster operation in very thick sheets, without removing expander from tube.

Step Expander

For thick tube sheets.

REFINERY EXPANDER

Refinery Expander

Fabricated to suit special needs for rolling tubes in refinery fittings .

SHARP BEND TUBE EXPANDER

This tool has a mandrel travel reduced to a minimum due to its special taper. The short mandrel is retained by means of a special fixture.

They are designed to suit special need in compact boilers.

Sharp Bend Tube Expander

REVERSE EXPANDER

When expanding tubes inside very long sheets, the tube elongation cam yield a stress/strain situation that will compromise the equipment structure.

The reverse expander eliminates this problem as it cold works the inner region to end face direction.

The expansion is stared in the inner sheet face and the tool travels backward to tube end.

The expansion is made in several step.

Reverse Expander

SUPER LONG EXPANDERS

Its used to expand tubes in inner sheets located far away from the tube ends.

Super Long Expanders