Among several types of tube expanding methods like using the powder explosion and steel ball are available, followings three types are the major ones.
The tube expander is superior to the others in respect of the safety, accuracy and cost effectiveness and most popular of these methods.

1. Liquid pressure method using the liquid pressure such as water pressure.

2. Elasticity method using the pressure created by the elastic rubber.

3. Tube expander method using tube expander to be inserted into the tube to expand it from inside and to fix it to the tube sheet.

We have been manufacturing and selling expanders since 1937.
The main body and the wearing parts of our Tube Expander has the excellent long life supported by our design and production know-how accumulated through our long history.
A variety of accessories and expanding device can be also provided to assist your tube expanding work.

We can provide a variety of expandrs per every tube specification. For example, we can provide 5 rollers expander for thin tube.
We can also prepare more various expanders such as high speed expanders to reduce expansion time.