Home » Filter Bag Making Machines

The machine (often referred to as a multi-needle pocket sewing machine or channel sewing machine) is highly specialized equipment designed exclusively for constructing the top cuff or collar of industrial dust collector filter bags. It automates the process of stitching the precise channels or “grooves” required to snap bands securely in place.
Main Functions
- This machine can stitch the grooves and stick the double-sided tape on the back at the same time.
- The width of the groove strip can be respectively sewn 25, 30, 35 mm (any size can be selected).
Description
Basic Parameters
| Item | Specification |
|---|---|
| Voltage | 220V/380V |
| Max. Sewing Speed | 2800 rpm/min |
| Max. Stitch Length | 3 mm |
| Lifting Height of Presser Foot | 10 mm |
| Number of Needles | 4 |
| Needle Pitch | 12/15 mm |
