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Features
Multi-Process Integration: Combines four key processes in a continuous line: (1) fabric cutting (CNC cutter with ±0.5mm accuracy), (2) sewing (lockstitch machine with thread tension control), (3) hot welding (for PTFE, temperature-controlled at 280–320°C), (4) PTFE taping (for seam reinforcement, 20–50mm width tape).
Speed and Capacity: Produces up to 600 pieces of 6-meter filter bags in 8 hours (125 bags/hour) for standard polyester—for shorter 2-meter bags, capacity increases to 300 bags/hour. Adjustable speed controls (3–12 m/min) allow optimization for delicate materials (e.g., aramid, 3–5 m/min) or rugged polyester (8–10 m/min).
Precision Control: Digital temperature regulation for hot welding with ±2°C accuracy (via Omron E5CC temperature controller)—critical for PTFE and high-temperature materials, where 5°C temperature variation can cause weak welds. Vision sensors (Keyence IV2) inspect seams for defects (e.g., skipped stitches, uneven tape application) in real time.
Material Versatility: Handles filter media with thicknesses from 300–1200g/m², including: polyester felt (300–800g/m²), PTFE felt (600–1200g/m²), aramid felt (500–900g/m²), and glass fiber (800–1200g/m²). Quick-change tooling (15-minute setup) allows switching between material types.
Power Requirements: 4 kW (3-phase AC 380V, 50–60 Hz) with surge protection (up to 10 kV) to prevent damage from electrical spikes—common in manufacturing facilities.
Air Supply: Requires 4–5 kg/cm² compressed air (flow rate 100 L/min) for pneumatic functions (e.g., fabric clamping, tape feeding)—compatible with standard factory air systems.
Dimensions: 16000 × 800 × 1800 mm (L×W×H) footprint with integrated material handling systems (conveyor belts, fabric unwind stands)—fits in a standard 20m × 5m production bay.
Control System: PLC-based intelligent control with 15-inch touchscreen interface (Weinview MT8150iE) and remote monitoring capabilities (via Ethernet or 4G)—operators can adjust parameters, view production data, and troubleshoot remotely.
Component
 |  |  |  |  |  |
| Automatic feeding | Automatic sewing | Automatic hot air welding | Storage | Automatic fixed length cutting | Main control |
 |  |  |  |
| Automatic sewing | Automatic hot air welding | Gluing function | Hot sealing tape function |
Main Function
| Feeding function |
| Feeding detection function |
| Automatic rubbing the membrane fabric |
| Backing and returning of material |
| Needle lift feeding function |
| Breaking stop function |
| Computer adjustable needle gauge function |
| Machine needle cooling function |
| Hidden type threading lighting |
| Multifunctional adjustable edge device |
| One-click switching heads function |
| Automatic fixed length cutting function |
| Sharpening function |
| Automatic tape hot sealing (Optional) |
The SY-700-X Automatic Sewing & Welding Line serves filter bag manufacturers across industries, addressing diverse production needs:
Industrial Filtration Production: Manufactures standard and custom filter bags for dust collection systems in woodworking, metal fabrication, and food processing— a manufacturer in China increased output from 5,000 to 15,000 polyester bags/week after installing the line.
Specialty Filter Manufacturing: Produces high-precision PTFE and aramid filter bags requiring consistent weld quality (e.g., for power plants and chemical plants)—the ±2°C welding accuracy ensures weld strength meets ISO 10881-1 standards.
High-Volume Production Facilities: Enables mass production of standard polyester filter bags with reduced labor costs—one operator can run the line (vs. 3–4 for manual sewing), cutting labor costs by 60–70%.
Custom Filter Shops: Provides flexible production capabilities for small-batch, custom-designed filter bags (e.g., non-standard lengths, special seam types)—recipe storage for 50+ production configurations allows quick recall of custom settings.
