Products · 02
Sintered filters and silencers.
Sintered filters are characterized by their durability and consistent performance. The porous structure enables high fluid flow rates while capturing particulates effectively.
01Grades
Eight grades, 200 µm down to 5 µm.
The powder grade sets the pore size, and the pore size sets what the filter stops and how freely it flows. Callo publishes both a theoretical and a practical particle size for every grade — specify against the practical column.
We also have many different tools for other filter — contact us for additional technical information.
| Grade | Mesh | Theoretical µm | Practical µm | Relative |
|---|---|---|---|---|
| CA200 | 16/22 | 200 | 100 | |
| CA150 | 22/30 | 150 | 75 | |
| CA100 | 30/44 | 100 | 50 | |
| CA75 | 44/60 | 75 | 40 | |
| CA50 | 60/85 | 50 | 25 | |
| CA25 | 85/170 | 25 | 15 | |
| CA10 | 170/240 | 10 | 5 | |
| CA5 | 240 | 5 | 2 |
Source: callo.se — powder classification table, reproduced in full.
02Standard programme
Silencers and air filters with brass feet.
Two standard lines, M5 through G1", each with a published article number. Dimensions in mm unless stated.
Silencers with brass feet
| A | B | C | D | E | F | G | Art. Nr. |
|---|---|---|---|---|---|---|---|
| M5 | 5 | 15 | 7 | 2.5 | 6 | 70 | B-0157-01 |
| G1/8" | 6 | 18 | 13 | 6 | 15 | 75 | B-0010-01 |
| G1/4" | 8 | 25 | 17 | 8.5 | 39 | 80 | B-0011-01 |
| G3/8" | 10 | 34 | 22 | 12 | 100 | 86 | B-0012-01 |
| G1/2" | 12 | 44 | 27 | 13 | 160 | 88 | B-0013-01 |
| G3/4" | 14 | 66 | 32 | 19 | 325 | 88 | B-0014-01 |
| G1" | 16 | 66 | 41 | 25 | 480 | 88 | B-0021-01 |
Air filters with brass feet
| A | B | C | D | E | Art. Nr. |
|---|---|---|---|---|---|
| M5 | 5 | 6 | 7 | 2.5 | B-0173-01 |
| G1/8" | 6 | 7 | 13 | 6 | B-0015-01 |
| G1/4" | 8 | 7 | 17 | 8.5 | B-0016-01 |
| G3/8" | 10 | 8 | 22 | 12 | B-0017-01 |
| G1/2" | 12 | 8 | 27 | 12 | B-0018-01 |
| G3/4" | 14 | 9 | 32 | 19 | B-0019-01 |
| G1" | 16 | 10 | 41 | 25 | B-0020-01 |
Dimensions A–G refer to Callo’s published dimension drawing. Request the drawing to see which letter is which.
01Why it works
What this gives an engineer.
- Rigid, one-piece porous metal — it does not collapse, migrate or shed fibres
- Consistent, repeatable performance over long service intervals
- High flow rate for the filtration grade
- Eight standard powder grades from CA200 down to CA5
- Cleanable and reusable rather than disposable
02Where it ends up
Typical applications.
- Pneumatic exhaust silencing
- Air and gas intake filtration
- Fluid power systems
- Flow restriction and diffusion
- Machine-integrated breathers
Typical uses for this component type. Callo does not publish a customer list, and none is implied here.
Engineering support
A filter is a geometry problem as much as a pore-size problem.
Flow area, pressure drop, fitting thread and the space you have to fit it into all interact. Callo holds many different tools for filters beyond the standard lines — ask before you design around a catalogue part.
Resources
Documents and drawings.
- Request
Filter dimension drawing
A–G dimensions for silencers and air filters with brass feet.
- Request
Powder classification table
All eight grades, theoretical and practical particle size.
- Request
Article number list
Standard silencers and air filters, M5 to G1".
On a live site these would download directly from here. In this demo they route to the contact page.
04Custom components
Have a component in mind?
Send Callo your drawing or your requirements and start a technical discussion. The earlier the conversation starts, the more there is to gain — geometry, material, tooling and production economics are still open.
- 01
Send what you have
Share the available part information directly with Callo and confirm the preferred drawing or model format.
- 02
Talk to someone technical
Callo publishes direct phone and email contacts for questions and orders.
- 03
Get a real answer
Discuss feasibility, materials and tooling requirements with Callo before production.
Demo page only — file formats and delivery workflow require Callo approval