Intelligent Slitting Machine for Traditional Chinese Medicine

Intelligent Slitting Machine for Traditional Chinese Medicine

Functional Introduction:

The machine performs precise slicing and dicing of Chinese medicinal materials, with adjustable thickness from 1 to 5 mm and a breakage rate ≤3%. It is designed for the pre-freeze-drying stage, where slice uniformity determines drying efficiency and the consistency of the finished freeze-dried decoction piece. The thickness window covers thin slices (0.5–1 mm), thick slices (1–2 mm), and the 2–4 mm range used for materials such as Ganoderma lucidum and Polygonatum, so the same platform handles a multi-material freeze-dried TCM line without changing the cutting principle.

Why slice uniformity is a freeze-drying variable, not a cosmetic one

In freeze-dried TCM production, the slicer sets the geometry that the dryer must then handle. A slice outside the target thickness creates a different ice-crystal structure and a different sublimation path: thin slices over-dry at the edges before the core is finished, while thick slices leave residual moisture that forces extended drying time or a rework cycle. The breakage rate matters for the same reason — fractured pieces pack differently in the tray, create uneven airflow, and emerge from the dryer as fines rather than as intact slices. The ≤3% breakage rate and the 1–5 mm adjustable window together mean the material entering the freeze-dryer has a consistent thermal and mass-transfer profile, batch after batch.

For specific materials, the thickness range is not arbitrary. Industry practice for Ganoderma lucidum fruit body slices centers on 1.0–2.5 mm: below about 0.8 mm the triterpenes are vulnerable to oxidative degradation during drying and storage, while above 3 mm the active-component concentration per unit area is diluted. For Polygonatum, freeze-drying optimization studies place the preferred slice thickness in the 2–3 mm range, with 3 mm identified as an optimal parameter in one freeze-drying process study. The machine’s 1–5 mm adjustment covers these material-specific windows without a mechanical rebuild.

Performance data

• Thickness range: 1–5 mm, adjustable, covering thin-slice, thick-slice, and dice/slitting formats for wolfberry, Polygonatum, Ganoderma lucidum, Scutellaria baicalensis, and similar materials.
• Breakage rate: ≤3%, which preserves slice integrity through the cutting stage and reduces fines entering the freeze-dryer.
• Cut geometries: slice, strip/slitting, and dice, with the cutting head defining the output dimension rather than operator technique.
• Material compatibility: fibrous and woody medicinal materials (Ganoderma lucidum fruiting body, Scutellaria baicalensis root), fleshy and starchy materials (Polygonatum rhizome), and small fruit formats (wolfberry), run on the same platform.
• Integration: positioned at the raw-material preparation stage ahead of blanching or pre-treatment, freezing, and vacuum drying; throughput matched to the input rate of the downstream freeze-drying line.

Application Scenarios:

• Processing of wolfberry, Polygonatum, Ganoderma lucidum, and Scutellaria baicalensis at the medicinal-material preparation plant. The slicer produces the flake or granular format that feeds directly into the freeze-dryer, with thickness set per material specification rather than per operator.
• Preparation of freeze-dried TCM slices, substitute teas, and functional food bases. For formats where the slice must retain its shape through freeze-drying and rehydration — a requirement that ties back directly to the cutting stage’s thickness consistency and breakage control.

Case reference: Beijing Tongrentang

Bolaike supplied this intelligent slitting machine as part of a custom TCM freeze-drying production line delivered to Beijing Tongrentang, one of China’s most recognized traditional medicine brands. The project was specified around Tongrentang’s freeze-dried decoction-piece production, where the cut specification directly affects the active-component retention that the brand’s quality standard requires. Bolaike’s line configuration for this customer was designed to significantly improve the preservation rate of active ingredients in the medicinal materials. The requirement arose from the gap between conventional cutting equipment and the precision that freeze-dried TCM formats demand. Tongrentang’s material mix spans fibrous Ganoderma lucidum, dense Polygonatum, and small wolfberry — materials whose optimal slice thicknesses differ, and whose freeze-drying behavior diverges sharply if the cut dimension drifts between batches. The slicer was specified at a 1–5 mm adjustable range with ≤3% breakage as the acceptance criterion, so that the material entering the dryer holds a consistent geometry across the full SKU range rather than being adjusted to the output of a previous machine. The result is a preparation stage that can be scheduled against a fixed slice specification for each material, protecting drying efficiency and the batch-to-batch uniformity of the finished freeze-dried decoction piece.