Filter Cages
Filter cages support the filter bag during operation and directly affect bag life, sealing and pulse-cleaning stability.
- Materials: carbon steel, galvanized steel, stainless steel 304/316L and surface treatment options.
- Custom details: diameter, length, wire number, ring spacing, venturi, split cage and top/bottom design.
- Selection note: bent, rough or corroded cages can damage new filter bags quickly.
Send cage drawing, bag diameter, tube sheet thickness, top style and material requirement for quotation.
Description
Baghouse support system
Filter Cages Matched to Your Dust Collector Bags
A premium filter bag still fails early if the cage is wrong. Pinnacle supplies baghouse filter cages matched to bag diameter, length, top style, tube sheet and operating environment.
Why cages matter
The Support System Behind Bag Life
Filter cages keep the bag open during pulse cleaning and support the fabric during operation. Wrong wire spacing, rough welds, poor straightness or mismatched top design can cause abrasion, leakage and early bag failure.
Best paired with filter bags
When replacing bags, check cages at the same time. Reusing damaged cages can waste new filter bags.
Cage construction
What Pinnacle Can Customize
Material and finish
Carbon steel, galvanized steel, stainless steel 304/316L and surface finish options.
Top and bottom design
Flange top, split ring, venturi, bottom cap and connection style.
Wire and ring layout
Vertical wire number, ring spacing, diameter tolerance and straightness.
One-piece or split cage
Long cages can be supplied in segmented designs for container loading and installation.
Dimensions needed
Cage RFQ Checklist
| Data | Why it matters |
|---|---|
| Bag diameter and length | Controls cage fit and friction risk. |
| Tube sheet thickness | Affects top fit and sealing. |
| Top style | Venturi, flange, split ring or special connection. |
| Environment | Corrosion level decides galvanized, carbon steel or stainless steel direction. |
Technical selection guide
Filter Cages Specifications, Applications and Selection Notes
Filter cages are the support structure behind baghouse filter bags. A new filter bag can fail early if the cage is bent, rough, corroded or mismatched to the tube sheet and bag top.
| Material options | Carbon steel, galvanized steel, stainless steel 304/316L and surface treatment options. |
|---|---|
| Dimensional data | Diameter, length, wire count, ring spacing, straightness and tolerance. |
| Top/bottom design | Venturi, flange, split ring, bottom cap, one-piece or multi-piece construction. |
| Matching requirement | Cage design should match bag diameter, tube sheet, cleaning method and installation space. |
Where This Filter Cages Is Commonly Used
Pulse-jet baghouses
Cages support bags during filtration and pulse cleaning.
Replacement projects
Old cages should be checked before installing new bags.
Corrosive environments
Stainless steel or surface treatment may be required.
Long cages
Split cage design may help container loading and installation.
Operating Boundaries to Check
- Rough welds or bent wires: Can cut or wear new filter bags.
- Wrong diameter: Creates friction, poor support or installation difficulty.
- Corrosion: May require stainless steel or a different surface finish.
- Wrong venturi/top design: Can affect pulse cleaning and sealing.
Common Failure Causes
- New bags wear quickly: Cage roughness or mismatch may be responsible.
- Poor pulse cleaning: Venturi, ring spacing or cage alignment should be checked.
- Installation difficulty: Diameter, length or split design may be wrong.
- Corrosion marks: Material and coating selection should be reviewed.
Selection Advice from Pinnacle Filter
When quoting filter cages, send cage drawing, bag diameter, cage length, wire/ring layout, tube sheet thickness, top style, venturi requirement and material finish. Pinnacle can match cages with the filter bag order.
Related product pages and next steps
Pinnacle Filter Support
Send Cage Dimensions for a Matching Quote
Send bag diameter, cage length, wire/ring layout, top style, material requirement and photos if available. Pinnacle will help match cages to your filter bags.
Fast RFQ checklist
Buyer Questions
FAQ
Should cages be replaced with bags?
Not always, but cages should be checked. Rough, bent or corroded cages can damage new bags.
Can you make stainless steel cages?
Yes. Carbon steel, galvanized and stainless steel 304/316L options can be reviewed.
What details are needed?
Diameter, length, wire count, ring spacing, top style, venturi requirement and material finish.
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