‘A’ Type
The ‘A’ type expander is similar to the ‘E’ type, in that it is a fixed rolling length general purpose tool, which may be power or hand driven. It is available in a metric series of non-adjustable rolling lengths, and the rolls are provided with a generous nose radius to ensure smooth transition between the expanded and unexpanded areas of the tube.
Description
The ‘A’ type expander is similar to the ‘E’ type, in that it is a fixed rolling length general purpose tool, which may be power or hand driven. It is available in a metric series of non-adjustable rolling lengths, and the rolls are provided with a generous nose radius to ensure smooth transition between the expanded and unexpanded areas of the tube.
Ordering Instructions
To ascertain the correct tool number for your purposes, first establish the minimum bore which the tool enters (1st column of table below). Then select the appropriate Effective Parallel Rolling Length column, and read off at the Minimum Bore size line … e.g.: for a tube with minimum bore size of 40mm and an effective parallel rolling length of 44mm (i.e.: 35mm seat thickness + 9mm over-roll) the tool number will read: A40/35.
Intermediate range tools are available to special order.
Drum mandrels will be supplied unless header or short series mandrels are ordered.