Heavy-duty automatic filter horizontal gluing and string winding machine designed for reinforcing cylindrical air and big oil filters. Utilizing precision PLC controls to spirally or circularly wind hot-melt adhesive threads (fiberglass or polyester), it fixes pleat spacing and prevents deformation under high-pressure intake. If your manufacturing line requires side banding before cylindrical reinforcement, please explore our Automatic Cabin Filter Side Edge Bonding Machine.
This professional Filter Horizontal Gluing & String Winding Machine (often referred to as a hot melt threading and winding machine) is a specialized mechanical solution designed for reinforcing cylindrical filter cartridges. It operates by spirally or circularly winding high-tensile fiberglass or polyester thread pre-coated with hot-melt adhesive around the outer jacket of the filter element.
By applying glue-coated strings horizontally, this machine permanently locks the space between the filter pleats and provides a highly rigid external reinforcement structure. This process is absolutely vital for manufacturing heavy-duty truck air filters, gas turbine cartridges, and large spin-on oil separators that must withstand extreme differential pressure and high intake suction without pleat bunching, collapsing, or deforming.
Technical Specifications
To ensure exact alignment with your heavy-duty filter assembly workflow, the factual mechanical and electrical parameters are detailed below:
Technical Parameters
Factual Specifications
Model
FP-HGW-1000 (Heavy-Duty Reinforcement Series)
Applicable Filter Diameter
Φ 90 – 400 mm
Max Filter Height (Length)
≤ 750 mm (Customizable up to 1000 mm)
Spindle Rotation Speed
Adjustable 0 – 80 rpm
Winding & Gluing Pitch
Adjustable 0 – 150 mm
Winding Pattern
Spiral winding or circular winding
Winding Material
Fiberglass thread, polyester string (flat or round)
Adhesive Heating Power
3.5 kW
Operating Temperature
Up to 300°C (for hot-melt curing)
Working Air Pressure
0.6 MPa
Power Supply
380V / 50Hz (Customizable to local grid)
Machine Dimensions
Approx. 2200 × 600 × 1400 mm
Machine Weight
Approx. 250 kg
Key Features & Mechanical Advantages
1. PLC-Controlled Precision Pitch Adjustment
The spiral winding pitch (ranging from 0 to 150 mm) is fully automated and controlled via the high-accuracy PLC program. Operators can adjust the thread density digitally on the touchscreen HMI to match different filter specifications, eliminating human measurement errors and manual gear tuning.
2. High-Temperature Hot-Melt Adhesive Station
Equipped with a robust 3.5 kW heating chamber, the adhesive station melts the thermoplastic glue evenly and can maintain a stable operating temperature of up to 300°C. This ensures the thread is coated with a uniform, consistent layer of hot-melt glue for maximum bonding strength.
3. Dual-Pattern Versatile Winding Methods
The spindle and threading mouth system supports both continuous spiral winding and targeted circular boundary winding. Depending on the structural requirements of your filter cores, you can switch winding modes in seconds via the touchscreen panel.
4. Constant Tension Feeding Control
To prevent thread breakage or filter paper crushing under high tension, our winding mechanism incorporates an adjustable tension-controller. This keeps the fiberglass or polyester thread perfectly taut while ensuring it does not damage the delicate pleated media.
Applications & Industrial Uses
This horizontal gluing and hot-melt thread winding machine is an essential reinforcement tool for:
Heavy-Duty Truck Air Filters: Wrapping large cylindrical outer jackets for commercial vehicles, tractors, and mining machinery.
Gas Turbine Filter Cartridges: Providing structural integrity to high-airflow intake filters used in cleanrooms and power plants.
Large Spin-On Oil Separators: Reinforcing compressor oil separators to resist high differential pressures.
Why Partner with Fupei?
Rigorous Factory Testing: Every horizontal gluing and winding machine is thoroughly tested with actual pleated media and thread at our facility before delivery to ensure stable heating and precise pitch alignment.
Global Voltage Standardization: We configure the internal electrical motors, heating elements, and control relays to match your factory’s specific power grid (such as 3-Phase 380V/50Hz, 220V/60Hz, or 415V/50Hz).
Complete Engineering Support: We supply a comprehensive 1-year warranty, complete electrical schematics, and lifelong remote video troubleshooting support to ensure your workshop maintains maximum uptime.
Frequently Asked Questions
A: The main purpose is to structurally reinforce heavy-duty cylindrical air filter elements and big oil separators. By spirally winding hot-melt adhesive-coated fiberglass or polyester thread around the filter’s outer surface, it keeps the pleat spacing perfectly uniform and prevents the filter cartridge from collapsing or deforming under high intake suction.
A: Yes, the gluing and winding pitch is fully adjustable from 0 to 150 mm. The parameters are controlled and set digitally via the integrated PLC and touchscreen HMI, ensuring high positioning accuracy and rapid transition between different filter models.
A: Our standard model accommodates cylindrical filters with diameters ranging from Φ90 mm to 400 mm and lengths (heights) up to 750 mm. For initial pleating before this reinforcement stage, we recommend using our Automatic Zig-Zag Rotary Air Filter Paper Pleating Machine or our Precision CNC Knife Pleating Machine.
