If you are sizing the refining stage of a chocolate line, the choice usually comes down to a continuous ball mill or a batch ball mill. Both bring chocolate, compound, and cream-based products to a fine particle size; the difference is how they get there — and that difference decides your throughput, your cost per kilogram, and how easily you switch recipes.
Short answer: choose a continuous mill for sustained, high-volume production of a stable recipe, where it gives the lowest cost per kilogram. Choose a batch mill for smaller or variable volumes, frequent recipe changes, or a first line, where its lower purchase price and flexibility pay off.
How each one works
A continuous (Conti) ball mill refines in a single pass: prepared mixture flows in at one end and comes out at target fineness, with no waiting for a cycle to finish. Alpy Conti mills run at 400–1,000 kg/h. Because product flows continuously, the mill suits non-stop, single-recipe shifts.
A batch ball mill refines in circulation cycles: a fixed quantity circulates through the ball-filled vessel until it reaches the target fineness, then transfers out and the next batch begins. Alpy batch mills work in 500–800 kg cycles. Circulation time is your quality control — run the same recipe the same way and you reach the same fineness every cycle.
The honest comparison
| Continuous (Conti) | Batch | |
|---|---|---|
| Throughput | 400–1,000 kg/h, non-stop | 500–800 kg per cycle |
| Cost per kilogram | Lowest at sustained volume | Higher |
| Purchase price | Higher | Lower |
| Recipe flexibility | Best for one stable recipe | Easy recipe changes between batches |
| Best for | High, steady volume | Smaller/variable volume, first line |
Which should you choose?
- Pick continuous if you need roughly 400 kg/h or more of one recipe, every shift. Over time it is the cheaper machine per kilogram, and it keeps a high-volume line fed without interruption.
- Pick batch if your volumes are below that, vary week to week, or you run many recipes — or if you are commissioning your first line and want to control capital. The lower purchase price and per-batch flexibility earn their keep.
You are not locked in
Both systems use the same Alpy preparation mixers and storage tanks. That means starting with a batch mill and upgrading to continuous later is a matter of adding equipment, not replacing what you already own. Many producers begin with batch refining and move to continuous as demand grows.
Not sure which side of the line your plant falls on? Send us your weekly volumes and recipe count and our engineers will run the numbers with you.
See both systems: Continuous Ball Mill Refiner · Batch System Ball Mill