Premium Needle Punched Felt Filter Bags – Engineered for Maximum Efficiency & Durability

Needle Punched Felt Filter Bags Production

Our state-of-the-art sewing workshop, powered by fully automatic lines and overhead hanging systems, delivers 3 million high-quality needle punched felt filter bags annually with unmatched precision, consistency, and speed.

Precise CNC or laser-guided cutting machines cut the felt into exact patterns based on bag specifications (length, diameter, seam allowance), minimizing waste and ensuring dimensional accuracy.

Automated Cutting

Wear strips, anti-collapse rings, grounding wires (for anti-static bags), or custom labels added as required.

Reinforcement & Accessories

Filter Bags Bottom & Top Construction

Filter Bags Bottom & Top Construction

Aokai Environment has invested in state-of-the-art fully automatic bag body sewing lines to produce high-precision, leak-proof filter bag tubes from needle punched felt.

Fully Automatic Bag Body Sewing

Our filter bag sewing workshop uses an overhead hanging system to boost efficiency, ensure uniform sewing quality, reduce worker fatigue, and improve overall production flow.

Overhead Hanging System for Filter Bag Sewing

Our filter bag sewing workshop uses an overhead hanging system to boost efficiency, ensure uniform sewing quality, reduce worker fatigue, and improve overall production flow.

Overhead Hanging System for Filter Bag Sewing

Strict ISO 9001-certified 23-step quality control: air permeability, tensile strength, seam integrity, abrasion, and chemical resistance

Final Inspection & Testing

Individually packed or palletized, stored in climate-controlled intelligent warehouse for traceability and fast dispatch.

 Intelligent Storage

We use export-standard corrugated cartons and secure palletizing with stretch film, desiccants, and anti-shift measures to ensure safe, damage-free global delivery of filter products.

Packaging & Transportation Module