Salt Packaging Machine Integrated Line
Vertical Bag Forming and Open Mouth Weighing Bagging Linked Control
The integrated packaging line synchronizes small pouch and medium heavy bag operations to achieve moisture protection, corrosion resistance, fast changeover, and stable production rates.
Line Scope and Approach
The standard process includes raw salt buffering and screening, weight-based dosing, bag forming, filling and sealing, automatic bagging, inline weight check, metal contamination detection, coding, case packing, palletizing, and data capture.
- Supports 10g to 2kg pouches and 10kg to 50kg open mouth bags
- Compatible with pillow, stand-up, flat bottom, and pre-made open mouth bag styles
- Unified recipes with fast change parts and clear maintenance access
Core Unit: Vertical Bag Forming, Filling and Sealing
For fine and granular salt, the small pouch section uses vertical forming, filling and sealing with focus on seam stability and cleanability. All contact parts are food-grade with quick-release film and heater modules.
- Reference speed: 60 to 140 bags per minute (depending on bag style, film, and dosing)
- Key design features: dust guards, extended seal dwell, local extraction
- Tool-free removal of hoppers and guides supports both dry and wet cleaning
Vertical bag forming filling and sealing machine
Dosing and Feeding Strategy
Granular Salt
Combination scales or electronic weighers with buffer hoppers and vibratory feeding chutes include anti-spill profiles to control drop height and dust.
- Target accuracy: ±0.2 to 0.5g based on net weight
- Common sizes: 200g, 500g, 1kg
Fine Salt
Screw dosing or gravity dosing with negative pressure extraction at the spout combined with moisture barrier packaging to improve seam integrity.
- Target accuracy: ±0.5 to 1g depending on flowability
- Optional features: desiccant insertion and gas flushing
Open Mouth Bagging Station
For 10-50kg bags, the station includes automatic bag pick, opening, dosing, settling and sealing, compatible with paper, woven and PE bags, and linkable with palletizing and wrapping.
- Bag mouth shaping and de-aeration reduce residual air and dust escape
- Sealing options: heat sealing, stitching or tape cover according to bag material
- Service-friendly guards and lifts simplify inspection and maintenance
Process Control Highlights
- Pretreatment screening and optional iron removal at critical points
- Dosing selection based on granularity, accuracy and throughput
- Bag forming and sealing: small pouches on vertical section, open mouth for medium-heavy bags
- Marking and coding with batch date and traceability identifiers
- Inline inspection: weight check and metal contamination detection with unified rejection
- End-of-line case packing and palletizing with stretch wrap and outer moisture protection
- Data capture interfaces to upper level systems with report output
Inline Weight Check and Metal Detection Combination
A single unit combines weight check and metal detection. Underweight, overweight and contaminated packs are separated, with inspection results linked to batch data.
- Check range covers common net weight bands
- Reject options: air blast pusher or dual belt diversion
- Data interfaces support report export and system connection
Weight check and metal detection combination unit
Layout and Capacity
- Small pouch section: 60 to 140 bags per minute (set by bag style, film and dosing)
- Open mouth section: 10 to 20 bags per minute (linked with palletizing and wrapping)
- Layout options: straight or L-shaped with dust sources connected to central extraction
Hygiene and Corrosion Resistance
- Food contact materials with sealed electrical and bearing enclosures
- Collection hoods at drop and sealing points tied to local extraction
- Supports both dry and wet cleaning methods with quick-release parts
Key Parameters
| Item |
Recommended value |
| Single pouch weight |
10g to 2kg |
| Open mouth bag weight |
10kg to 50kg |
| Bag styles |
Pillow, stand up, flat bottom, open mouth |
| Environment |
Ambient with extraction and dust control at critical points |
| Maintenance |
Recipe management and checklists with periodic inspections |
Implementation and Services
- Delivery includes line layout, interface lists and I/O tables
- On-site installation, commissioning, operator and maintenance training
- Remote support, periodic inspections and KPI report templates
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