Fabrication
From drawing to series
You can buy filter cloth by the metre or as finished parts made to your drawing or your original. Sefar sews, welds, cuts and joins the cloths, and we keep what we have developed for you in stock in Spånga.
- Or finished parts
- By the metre
- Or original
- Drawing
- Customer stock
- Spånga
How we develop a new filter part
The work starts with your process and ends with a part that fits your machine. The lead time is set once the product has been developed.
| Step | What happens |
|---|---|
| 1. Requirements | Process, medium, particle size and machine type. |
| 2. Material selection | We propose cloth and weave, with samples if needed. |
| 3. Production | Finished parts made to your drawing or your original. |
| 4. Delivery | The lead time is set once the product has been developed. We can hold stock and deliver to your forecasts. |
What we fabricate
Most process filters are delivered ready to install. Common parts:
- Filter press cloths
- Centrifuge bags
- Vacuum filter belts and drum filter belts
- Disc filter covers
- Nutsche filter bags
- Fluid bed bags
- Dust filter bags
- Belts, tubes, punched and pleated parts for OEMs
Designs according to Sefar's brochures
Sefar does its fabrication in-house. The design is chosen to suit the machine and the process.
Seams and edges
- Welded filters without stitching holes, so there is no product loss through the stitching holes
- Sewn, taped, welded, heat cut and pressed, or coated edges
- Customised and standardised edge designs that fit existing equipment
Closures for filter belts
- Metal clippers in various grades, for example Alligator clippers with seam
- Reinforced closure area, overlap and underlap
- Sealing thread for a particle-tight closure, Velcro optional
- Marking of cake side and running direction
Cutting and components
- Laser, heat, ultrasonic and cold cutting
- Punching with ultrasonic or cold tools
- Ultrasonic welding, pleating and tube making
- Heat cut edges are sealed and do not fray, and ultrasonically welded seams are tight and strong
Customer stock in Spånga
Items we have developed for you are kept in stock in Spånga, so your supply never stops. We can deliver to your forecasts.