Small-scale hopper mixing for laboratory or development work.
The interchangeable laboratory hopper is mounted on the drive and rotated through the set mixing cycle. Material repeatedly separates and recombines inside the vessel to produce a small-batch blend.

| Model | H (mm) | H1 (mm) | H2 (mm) | W (mm) | W1 (mm) | L (mm) | Hopper Volume (L) | Main-Shaft Speed (rpm) | Total Power (kW) |
| HS30 | 1000 | 400 | 1050 | 450 | 700 | 1200 | 5–30 | 3–25 | 0.55 |
| HS100 | 1300 | 450 | 1350 | 700 | 900 | 1600 | 50–100 | 3–20 | 0.75 |