Home » Filter Cartridge Making Machines
The machine (also known as a filter end cap dispensing/injection machine) is an essential automated system in industrial filter manufacturing. It is specifically designed to precisely and evenly dispense two-component adhesives (such as PU/Polyurethane foaming glue, epoxy resin) or hot melt adhesives into metal or plastic end caps. The adhesive then bonds and seals the end caps securely to the pleated filter media (such as non-woven fabric, fiberglass, or filter paper).
Description
Basic Parameters
| Item | Value |
|---|---|
| Power | 5kw |
| Rated Voltage | AC220V |
| Rated Frequency | 50HZ |
| Dimension | 1100×800×1300mm |
| Glue Injection Rate | 10pcs/min |
| Glue Flow Rate | 10-40g/s |
| Glue Mixing Ratio | 1:1-5 |
Technical Advantages
☑ High-Precision Proportioning & Anti-Drip
Driven by a servo control system, the mixing ratio accuracy can reach ±1%. The dispensing gun is equipped with an automatic shut-off and anti-drip function, effectively preventing adhesive contamination on the edge of the end cap.
☑ Excellent Sealing Performance
When using PU foaming adhesive, the material slightly expands after injection. This expansion ensures that all gaps between the pleats of the filter media are fully filled, completely eliminating any risk of “bypass leakage” during filtration.
☑ Intelligent PLC Control
The system is equipped with a PLC control unit and a user-friendly touchscreen interface. It can store dispensing parameters such as rotation speed, output volume, and mixing ratio for dozens of different filter specifications. Product changeover can be completed with a single-touch recall of saved settings.
☑ Automatic Cleaning Function
To handle the fast-curing characteristics of two-component adhesives, the machine is typically integrated with automatic high-pressure solvent flushing or air-purging systems. This effectively prevents clogging in the mixing head and ensures stable long-term operation.
Industry Applications
This equipment is widely used across various industrial and commercial filter production lines:
| Filter Type | Common Adhesive Process | Core Requirements |
| Heavy-Duty Truck Air Filters / Automotive Air Filters | PU Foaming Glue (Polyurethane) | Excellent vibration resistance and thermal stability. |
| Hydraulic Oil Filters / Spin-on Oil Filters | Epoxy Resin | High resistance to oil, high pressure, and chemical corrosion. |
| Dust Collector Cartridges / High-Temp Flue Gas Filter Caps | High-Temperature Hot Melt / Silicone | Meets harsh, high-temperature requirements in metallurgy and cement plants. |
| Water Treatment String-Wound / Melt-Blown Filters | Food-Grade Hot Melt (EVA/PO) | Meets strict non-toxic and pollution-free hygienic standards. |