We make the material in your part
“Mixing” is the step that turns raw polymers and additives into a ready-to-mold rubber compound. Most molders source that compound externally. We mix ours, on our own line, which is why the material cost in a CRC part is lower and why a formulation change does not mean a supplier negotiation.
We also sell mixed stock to other manufacturers, including mixing to your own formulation.
Operational details
We mix roughly one million pounds of custom compound a year on a single shift, five days a week.
| Today | |
|---|---|
| Mixer size | 80 litre internal mixer |
| Typical batch size | ~150 lb |
| Annual volume | ~1,000,000 lb of custom compound |
| Schedule | One shift, five days a week |
| Expansion | Additional shifts available on the same equipment |
| Traceability | Full traceability on every raw material and finished batch |
| Documentation | Certificate of analysis on request |
The mixing line
- S-80 Banbury internal mixer, 500 HP variable-speed DC drive, tempered water system, and computer-aided data acquisition
- Stewart-Bolling 22″ × 22″ × 60″ rubber mill, 200 HP drive
- Akron Standard batch-off with wig-wag
- Barwell model C-3 preformer
Traceability and the paperwork
Every raw material and every finished batch is traceable in our ERP system, and a certificate of analysis is available on request.