Vacuum Forming Machines
Here at Swanstone Ltd, we have been providing quality vacuum forming machines for many years. We offer a wide range of heavy duty, compact systems which are manufactured to the highest quality standards using the latest technology by Geiss in Germany. Thermoforming machines and their more complex counterparts, vacuum forming machines, are capable of forming any material in any thickness.
These machines heat thermoplastics to a pliable temperature before stretching it over a moulded profile. The cooled plastic is then trimmed to create the final product. A Vacuum Forming Machine is more complex than a Thermoforming Machine in that they introduce a vacuum in order to remove any surplus air bubbles from the process, creating a much more precise end product.
Types of Vacuum Forming Machine
Custom Vacuum Forming Machine
All of our machinery is manufactured to your specifications with a comprehensive choice of optional equipment to enhance performance and provide higher levels of automation. Geiss have developed many patented technological features, including the adjustable window plate system in two axis – which is now one of the most popular pieces of optional equipment purchased.
In addition to the wide range of standard machine sizes and draw depths, any size of vacuum forming machine can be made to customer order. This bespoke option allows the customer to specify the exact vacuum forming machine required instead of having to conform to other manufacturers’ standard size limitations.
Geiss have a proven track record of successful twin sheet and pressure forming applications, as well as extensive experience in providing standard sheet and reel fed vacuum forming machinery. Customer specific production solutions are offered using the expertise and technical know-how of this innovative company.
WHAT IS VACUUM FORMING?
Vacuum Forming is a process whereby thermoplastic material, of pretty much any thickness and any type, is heated to a pliable temperature, creating a bubble which drapes over the mould, creating a particular 3D shape and definition using vacuum suction. The advantages of Vacuum Forming over Injection Moulding are:
- Ideal for R&D Projects
- Faster Prototyping Times
- Tooling much more cost effective compared to Injection Moulding
- Larger choice of Colours and Finishes
The Vacuum Forming Process
This visual guide gives an example of the step-by-step nature of the vacuum forming process:
- The material is clamped into position and heated until pliable, blowing a bubble.
- Through vacuum suction the air is removed and the pliable sheet sucked into the mould.
- The table with the mould drives up into the heated sheet.
- With a final vacuum the moulding stage is completed with all its required definition.
Once the forming stage is completed and the formed part is released from the clamp frame, it may be moved on for further processing, if required.
Typical materials used for Vacuum Forming are ABS, Acrylic Capped ABS, PS, HIPS, SHIPS, PP and some other specialised materials such as foam based and Kydex. Products can be formed from sheet or reel materials, depending on your machines individual feeding option.