SY-WDJ2500A / SY-WDJ5000A Vertical Automatic Mesh Bag Packaging Machine
The ZSYAN SY-WDJ2500A and SY-WDJ5000A Vertical Automatic Mesh Bag Packaging Machine is a high-productivity vertical form-clip netting solution for industrial packing houses. Capable of handling 200g to 5000g produce packs at 20 to 35 bags per minute, its direct vertical dropping architecture maximizes packing cadence for impact-tolerant produce like yellow onions, garlic, potatoes, and shellfish. Utilizing ZSYAN’s signature continuous coiled galvanized wire U-clipping system, it reduces operational clip costs by 45% versus pre-formed aluminum clips. Built with heavy-duty SUS304 stainless steel frame, dual-servo film pulling, and high-sensitivity photoelectric eye tracking (±1mm accuracy), it operates on AC220V 50/60Hz with low power consumption.
Engineering Advantages & Technical Highlights
Precision-machined in Zhongshan, Guangdong with industrial-grade European standard electrical components.
Direct Vertical Drop Efficiency
Straight vertical chute geometry delivers the fastest cycle time for rugged produce such as onions, potatoes, and shellfish, maximizing throughput during seasonal harvest peaks.
High-Strength Wire Form-Crimp Tooling
Specially treated alloy steel die punches, shapes, and crimps continuous galvanized wire around bag top and bottom simultaneously with zero jam rate.
Intuitive 7-Inch PLC Touchscreen
Stores up to 99 SKU recipes. Fast 5-minute tube changeover for switching between 1kg retail bags and 5kg catering sacks.
Technical Specifications Matrix (EAV Model)
Standardized factory specifications. Custom voltages (110V/220V/380V/480V 50-60Hz) and conveyor integration available.
| Feature / Attribute | SY-WDJ2500A (Vertical Standard) | SY-WDJ5000A (Vertical Heavy) |
|---|---|---|
| Target Fill Weight | 200g – 1,000g | 500g – 5,000g |
| Throughput Cadence | 25 – 35 bags/min | 20 – 30 bags/min |
| Mesh Sleeve Type | Roll tubular extruded / raschel PE mesh | Roll tubular extruded / raschel PE mesh |
| Clipping Consumable | Galvanized iron wire (5,000–8,000 bags/roll) | Galvanized iron wire (5,000–8,000 bags/roll) |
| Contact Metal | SUS304 Stainless Steel | SUS304 Stainless Steel |
| Drive System | Servo Motor + VFD with ±1mm cutting accuracy | Servo Motor + VFD with ±1mm cutting accuracy |
| Power & Compressed Air | 220V 50/60Hz, 1.5 kW; 0.6 MPa (200 L/min) | 220V 50/60Hz, 2.2 kW; 0.6 MPa (250 L/min) |
| Machine Dimensions & Weight | 1750 × 1850 × 950 mm / 480 kg | 1800 × 1950 × 1000 mm / 510 kg |
Material Suitability & Application Boundaries
Our engineering laboratory verifies physical handling tolerances to prevent jamming, breakage, or product degradation.
✅ Factory-Verified Ideal Applications
- High-Volume Root Crops: Yellow, red, and white onions, russet potatoes, red potatoes, garlic heads.
- Durable Hard Citrus: Valencia oranges, lemons, limes, firm grapefruits.
- Bivalve Shellfish: Live clams, oysters, cockles, mussels (wire clip provides tamper-proof hold during moist transit).
❌ Unsuitable Products & Alternative Systems
- Bruise-Prone Produce: Soft peaches, ripe persimmons, dessert apples (use our inclined SY-WDJ2500 model instead).
- Leafy Vegetables: Cabbage, kale, spinach (wire clip damages leaf stems).
Turnkey Packaging Line Integration Workflow
Seamlessly pair with upstream feeding and downstream end-of-line case packing equipment.
Bucket Elevator Infeed
Produce is elevated to high-level multihead weigher hopper.
Precision Batch Weighing
10 or 14-head weigher discharges exact target weight.
Vertical Tube Netting Charge
Produce drops vertically into pre-expanded mesh netting tube.
Simultaneous Wire U-Crimp
Double-crimp head seals current bag top and subsequent bag bottom.
Takeaway & Rotary Accumulator
Sealed mesh bags transfer to packing station or automatic case packer.
Frequently Asked Questions (FAQ)
Direct answers from our senior packaging machinery engineering team.
Q What is the difference between Vertical (A) and Inclined models?
The Vertical model (SY-WDJ2500A) features a straight-down drop for maximum cycle speed, best suited for robust produce like onions and garlic. The Inclined model (SY-WDJ2500) uses a 45° cushioned ramp to prevent impact bruising on delicate fruits like apples, citrus, and multipack snacks.
Q Can wine glass tags and carry handles be added?
Yes, our machines can be equipped with an automated wine-glass label dispenser and a tape handle feeding attachment that are clinched into the wire closure in a single motion.