Automatic Tofu box filling sealing machine

Описание: whatsapp: +86 138 0687 3870
Automatic Tofu Box Filling & Sealing Machine is a fully automated food packaging system designed to fill tofu products into boxes (carton trays), apply a protective lid or film, and seal them hygienically for retail, distribution, or cold storage. These machines are widely used in tofu, soybean-based desserts (e.g., douhua), ready meals with tofu blocks, and refrigerated tofu cubes.

Below is a clear guide you can use to understand, specify, or source one.
🍱 What It Does
This machine performs the following in one continuous process:
Box/Tray Feeding
Automatically feeds empty tofu boxes (carton or plastic trays) into the line.
Filling / Dosing
Doses tofu blocks, cubes, slices, or processed tofu pieces into each box.
Can integrate with vibratory feeders, robotic pickers, or batch dosing systems.
Liquid / Sauce Filling (Optional)
Adds brine, marinade, seasoning liquid, or tofu broth as needed.
Film / Lid Placement
Places film (PET/PE laminate or easy-peel) or pre-cut lids over trays.
Heat Sealing
Heat-seals the film onto the box/tray for airtight closure.
Date / Lot Coding
Prints production date, batch, and expiry on film or box.
Finished Product Discharge

Pushes sealed boxes onto an outfeed conveyor for labeling or packing.
⚙️ Typical Working Process
Box Denester → Product Dosing → (Liquid Dosing) → Film/Lid Placement → Heat Sealing → Date Coding → Outfeed Conveyor

🧰 Key Machine Components
✔ Tray/Box Denester
Automatically picks empty boxes and places them on the conveyor.
✔ Filling System
fillers — accurate for tofu blocks or liquids.
Volumetric fillers — for broth or marinade.

✔ Film/Lid Dispenser
Supplies film or pre-cut lids for sealing.

✔ Heat Sealing Module
Adjustable temperature/pressure/dwell control to match film type.

✔ Control System
PLC with touchscreen HMI for recipe storage and process control.

✔ Safety System
Guards, interlocks, and no-tray/no-fill/no-seal logic for safe operation.

🧂 Applications
✔ Tofu boxes (fresh tofu)
✔ Ready meals with tofu + sauce
✔ Tofu cubes in broth
✔ Spiced/sauced tofu packs
✔ Tofu salads with dressing

🛠 Optional Add-Ons
Vacuum / MAP sealing for extended shelf life
Automatic labeler (printed or laser)
Vision inspection (fill level/seal quality)
Checkweigher
Multi-head filling for higher throughput
Buffering & accumulation conveyors

🥡 Production Line Integration
A complete tofu box packing line usually looks like this:

Box Denester
↓
Product Dosing (tofu pieces)
↓
Liquid Dosing (broth/marinade)
↓
Film/Lid Sealing Machine
↓
Date Coder
↓
Inspection/Checkweigher
↓
Labeler
↓
Cartoner / Case Packer

📌 To Recommend the Best Machine
Tell me:
Box size(s) (length × width × height)
Product style (tofu cubes, blocks, marinated tofu, tofu dessert, etc.)
Does it include liquid sauce/brine? (Yes/No)
Target output (boxes per hour)
Seal type (film vs film + lid)

I can then provide a specific machine model, specs, and layout tailored to your needs.