Starkey SFM-99 vacuum clay extruder
Designed for high production and larger extrusion dies, the SFM-99 has dual counter-rotating mixing shafts powered by 30–70 total horsepower split between two drives. It processes up to 8,000 pounds per hour and offers optional stainless steel or ultra-wear-resistant high-chromium wear parts, a positive-displacement vacuum chamber, and many other options.
| Mixing | Dual counter-rotating shafts |
|---|---|
| Power | 30–70 HP total, split between 2 drives |
| Production rate | Up to 8,000 lb/hr |
| Wear parts | Stainless steel or high-chromium optional |
| Vacuum chamber | Positive displacement |
The dual counter-rotating mixer outperforms single-shaft designs in speed, uniformity, and scalability, which suits demanding extrusion work where production rates exceed 5,000 lb/hr and material consistency is critical.