SY-WDJ-S / SY-WDJ5000DS Strip Produce Mesh Bag Packaging Machine
The ZSYAN SY-WDJ-S (SY-WDJ5000DS) Strip Mesh Bag Packaging Machine is a dedicated automated netting system engineered specifically for elongated fresh produce, sweet corn ears, garlic braids, and continuous cucumber string bags. Packing across an extended 200mm to 800mm length range at speeds of 18 to 32 bags per minute, it features an elongated 900mm vertical forming mandrel with dual pneumatic wire-clip swaging jaws. Constructed from food-grade SUS304 stainless steel with Omron PLC control, it holds long items vertically aligned in a skin-tight tubular mesh sleeve, preventing internal shifting or breakage during supermarket transit.
Engineering Advantages & Technical Highlights
Precision-machined in Zhongshan, Guangdong with industrial-grade European standard electrical components.
Extended 900mm Forming Mandrel
Specially engineered long mandrel accommodates produce up to 800mm in length, maintaining vertical orientation without bunching or twisting.
Longitudinal Netting Tensioners
Adjustable circumference tension rings create an elastic skin-tight hugging effect that secures sweet corn husks and long garlic braids without bruising.
Continuous Coiled Wire U-Clipping
In-line wire feeding folds high-strength rustproof U-clips, slashing staple costs by 45% compared to preformed aluminum clips.
Technical Specifications Matrix (EAV Model)
Standardized factory specifications. Custom voltages (110V/220V/380V/480V 50-60Hz) and conveyor integration available.
| Parameter / Specification | SY-WDJ-S Standard | SY-WDJ5000DS Extended Heavy |
|---|---|---|
| Package Length Capacity | 200 mm – 600 mm | 200 mm – 800 mm |
| Packaging Speed Rate | 20 – 32 bags/min | 18 – 28 bags/min |
| Forming Mandrel Length | 750 mm polished SUS304 | 900 mm polished SUS304 |
| Produce Alignment Defect | < 0.5% (skin-tight sleeve) | < 0.2% (skin-tight sleeve) |
| Closure Technology | Dual Galvanized Coiled Wire U-Clips | Dual Galvanized Coiled Wire U-Clips |
| Tag / Label Attachment | Wine-glass label or continuous ribbon | Wine-glass label or continuous ribbon |
| Power & Air Consumption | Single-Phase 220V, 2.5 kW; 0.6 MPa | Single-Phase 220V, 2.8 kW; 0.6 MPa |
| Machine Dimensions & Weight | 1500 × 1250 × 2450 mm / ~550 kg | 1500 × 1250 × 2650 mm / ~600 kg |
Material Suitability & Application Boundaries
Our engineering laboratory verifies physical handling tolerances to prevent jamming, breakage, or product degradation.
✅ Factory-Verified Ideal Applications
- Sweet Corn with Husks: 1 to 4 sweet corn ears packed in long strip mesh bags for supermarket refrigerated display.
- Garlic Braids & Strings: Traditional braided garlic strands and extended multi-bulb hanging strips.
- Cucumbers & Long Vegetables: English cucumbers, eggplants, daikon radishes, and root crops.
❌ Unsuitable Products & Alternative Systems
- Spherical Produce (>120mm diameter): Large round melons or cabbages (use our Vertical SY-WDJ5000A or Horizontal SY-HWDJ6000).
- Unbound Dry Powders: Flour, spices (use VFFS Auger baggers).
Turnkey Packaging Line Integration Workflow
Seamlessly pair with upstream feeding and downstream end-of-line case packing equipment.
Infeed Conveyor V-Alignment
Produce is placed into V-guides on the infeed elevator for vertical alignment.
Extended Mandrel Netting
Item drops smoothly down 900mm mandrel into pre-tensioned tubular net.
Bottom U-Clip & Tag Feed
Pneumatic crimper applies bottom U-clip and inserts wineglass retail tag.
Neck Gathering & Top Cutoff
Upper jaws gather netting, apply top U-clip, and cleanly cut sleeve.
Soft-Landing Discharge
Long strip bag drops onto soft-cradle takeaway belt to prevent impact.
Frequently Asked Questions (FAQ)
Direct answers from our senior packaging machinery engineering team.
Q Does the tight netting damage delicate sweet corn husks?
No. Our adjustable tension rings provide elastic holding force without pinching. The inner tube surfaces are electro-polished to mirror smoothness.
Q Can the bag length be adjusted automatically on the touchscreen?
Yes. Bag length is controlled digitally via the PLC touchscreen from 200mm to 800mm with single-key parameter recall.