Industrial Filter Cages

High-Performance Filter Cages for Dust Collector Systems

Precision-Engineered | Process-Controlled | Built for Long-Term Operation

KABORY manufactures high-performance industrial filter cages designed to provide stable and precise internal support for filter bags used in pulse-jet, reverse-air, and shaker-type dust collector systems.

A filter cage is not a simple accessory.
It is a critical structural component that directly affects filtration efficiency, cleaning performance, and the service life of filter bags—especially in harsh industrial environments.

Why Industrial Filter Cages Matter in Dust Collectors

｜The Structural Role of Industrial Filter Cage

● The filter cage acts as the internal skeleton of a filter bag
● Cage geometry and rigidity determine bag stability under negative pressure
● Proper support is essential for effective pulse-jet cleaning

Common Problems Caused by Poor Filter Cages

❌ Filter bag collapse under suction
❌ Reduced effective filtration surface area
❌ Inefficient pulse-jet cleaning
❌ Accelerated bag abrasion and frequent replacement

✔ KABORY filter cages eliminate these risks through controlled materials, disciplined manufacturing processes, and verified dimensional accuracy.Quality Control Starts from Raw Materials

▸ Wire Sourcing for Industrial Filter Cages from a  Qualified Manufacturers

At KABORY, quality control begins before production, starting with raw materials.

✔ Wires sourced exclusively from large, qualified steel manufacturers
✔ Uniform wire diameter
✔ Stable tensile strength
✔ Controlled surface quality suitable for welding and coating

❗ We do not reduce wire diameter, substitute materials, or compromise specifications to lower cost.

▸ Why Wire Consistency Matters

Uniform wire quality is the foundation of:

● Stable welding performance
● Accurate filter cage geometry
● Long-term mechanical strength and durability

Filter Cage Welding Quality Controlled by Process Discipline

▸ ｜Mandatory First Filter Cage Inspection

Welding quality is controlled through a structured inspection sequence, not random sampling.

▶ First filter cage — mandatory inspection
✔ Length and diameter measurement
✔ Weld strength and firmness verification
✔ Trial fitting with an actual filter bag

▸ Second and Third Cage Verification

▶ Second and third filter cages — mandatory inspection

✔ Dimensional consistency
✔ Welding stability and repeatability

▸ In-Process Screening During Production

▶ Continuous in-process screening
✔ Early detection of welding or dimensional deviations

▸ Final Inspection Before Packing

▶ Last three filter cages — mandatory inspection
✔ Length and diameter re-check
✔ Weld integrity and firmness verification

✔ This ensures welding quality remains stable from the first cage to the last, not only at the start of production.

CNC Welding and Tight Dimensional Tolerances

▸ Automated CNC Welding for Structural Stability

All vertical wires and support rings are welded using fully automated CNC welding machines, ensuring:

✔ Accurate circularity and dimensional stability
✔ Smooth weld points to prevent filter bag abrasion
✔ Easy installation and reliable bag replacement

▸ Dimensional Tolerances for Modern Dust Collectors

Standard tolerances maintained by KABORY:
✔ Diameter tolerance: ±1 mm
✔ Length tolerance: ±3 mm

These tolerances are critical for compatibility with modern high-efficiency dust collector systems.

Durable Filter Bag Surface Coatings for Harsh Environments

▸ Surface Preparation Before Coating

For silicone-coated industrial filter cages, KABORY applies:

✔ Acid pickling 
✔ Shot blasting

This creates a controlled micro-textured surface.

▸ Proven Coating Adhesion and Longevity

✔ Strong silicone adhesion
✔ No coating flaking under high temperature or corrosive conditions
✔ Significantly extended filter cage service life

This process prevents coating failures commonly seen in:

● Incineration plants
● Chemical facilities
● Acid gas filtration systems

Industrial Filter Cage Packaging Designed for Protection and Handling

▸｜Steel Frame Packaging with Waterproof Protection

Filter cages are industrial components — packaging quality matters.

✔ Rigid steel frame structure
✔ Waterproof protective film
✔ Temporary rain protection during storage and transportation
✔ Effective prevention of cage deformation

Forklift-Friendly for Industrial Logistics

✔ Designed for safe forklift handling
✔ Efficient loading, unloading, and warehouse operations

Result:

▶ Filter cages arrive clean, dry, and dimension ally intact, ready for installation.

Fully Customizable Filter Cage Configurations

Whether you’re using snap band, flange top, Venturi insert, or cap-based filter bags — we can provide precisely matching cages in single-piece or multi-piece construction.

▸ Surface Finish and Accessories

● Surface Finish: Zinc-plated / Epoxy / Silicone
● Top & Bottom Caps: Mild Steel / SS304 / SS316 / SS316L
● Venturi Tubes: Optional – Stainless Steel or Aluminum (Pressed or Welded)
● Tolerances: ±1 mm Diameter / ±3 mm Length

✔ Compatible with snap band, flange top, venturi-insert, and cap-mounted filter bags.

Why Choose Industrial Filter Cages for Dust Collector Applications

KABORY industrial filter cages are widely used in:

● Cement kilns and rotary plants
● Coal-fired and biomass power plants
● Waste-to-energy incineration facilities
● Steel, coke, and non-ferrous metal smelting
● Chemical gas and acid vapor filtration
● Mining, asphalt, and metallurgical processing plants