SizTech Expander

Advantages of our Expander

  • Part accuracy, stress, cross section consistency and appearance are all a direct result of the number of jaws
  • The Ring indexing system allows for automatic rotation of the part
  • Measuring and calibrating of the inner ring diameter during the automatic cycle (Gauge mode)
  • Spring back compensation
  • A unique programmable control system with a user-friendly interface that guarantees repeatability and accuracy
  • Additional advantage for the forging industry: Material and labor savings
  • Additional advantage for the aerospace industry: Hot parts can be sized; the temperature of the product can be measured to calculate the expansion ratio to guarantee part diameter at room temperature

 Features of SizTech

  • SizTech can help you to calculate material/machining savings
  • SizTech can advise you which applications are possible and which are NOT possible to expand
  • SizTech knows how to calculate the right expander for your application
  • Our unique design reduces the friction in the system
  • SizTech offers a proven, reliable machine design that guarantees high efficiency, long lifetime, and low maintenance costs (ex. special cone/drawbar configuration)
  • SizTech designs and tests tooling; tooling shares the same profile of the part that needs to be produced and is one of the most important parts in the expander
  • Quick change options for the tooling is available
  • SizTech can also supply automatic loading and unloading systems

The Expanding Process – when the inside Diameter is of Importance

The expanding process is the most economical means of forming and / or sizing a wide range of parts having a continuous cross-section. Parts that are round, square or multi-sided can be successfully sized. A wide range of materials can be sized or formed by expanding, such as alloy steel, aluminum, mild steel, stainless steel, titanium and aerospace alloys, which are routinely formed and sized on SizTech expanders. Expanding can eliminate or reduce machining operations and therefore reduce your cost per part, especially when the inside diameter is of importance.

Material properties throughout the product are improved by momentarily elevating the stress in the product beyond the yield point, resulting in a form of mechanical stress relieving and increased material properties.

SizTech offers optimal process control during expanding.

Metal Forming technology – Expanding technology

We are experts for metal forming technology, especially for sizing and roll forming technologies. These are not so familiar within the industries we serve. We would like to change this as we believe in the benefits which include energy savings, machining reduction, quality, precision and more.