Injection moulding parts with SPG's Pre-Tension Tool
 
SPG Pre-Series Tooling & Prototyping has a several patented Pre-Tension Tools which are used to make low cost injection moulding of large products possible. In general these frames are used for bumpers, spoilers and instrument panels.
 
SPG-Pre-Tension
 
 Injection moulding parts with SPG's Pre-Tension Tool
 How does it work?
The patented Pre-Tension frame holds a compact aluminium mould including all slides and inserts needed for producing products. Forces that occur during injection moulding, and that usually require a large tool, are compensated by the Pre-Tension frame. The compact aluminium mould can be easily switched for that of another product. Parts produced are close to production quality, including standard hidden parting lines for bumpers.
 Applications
Aesthetic validation.
Technical validation such as assembly and crash testing.
Pre-production launching.
 Lead time
Typical lead time is 8-12 weeks (depending on size and complexity).
 Advantages
Low cost and short lead time (versus production mould).
Use of original production materials.
Injection moulding with (sequential) hot runners.
High volume of parts possible.
Tool modifications are possible.