Filter Bags

Product Introduction:

The filter bag is the core filter element of the bag dust collector. It captures solid particles in the dust-laden gas through surface filtration or deep filtration to achieve gas-solid separation.

It is widely used in the power, steel, cement, chemical, waste incineration, non-ferrous metal smelting and other industries to treat boiler flue gas, production dust, etc. It is a key equipment component for industrial dust removal and environmental protection management.

Inquire Now Filter Cages

Product Advantages

Diverse materials: Polyester (PE), Polypropylene (PP), Aramid, PPS, Acrylic, Fiberglass, PTFE, etc.

Excellent wear resistance and high strength

High filtration efficiency

High-quality raw materials and competitive pricing

Customized production

Technical Parameters Specifications

Room temperature dust filter bag
Name	Gram weight	Thickness	Operating temperature	Instantaneous temperature	Acid resistance	Alkali resistance
Polyester needle-punched felt	500g/550g	1.8-2.0mm	≤130℃	150℃	Excellent	Good
Anti static polyester needle punched felt	500g/550g	1.8-2.0mm	≤130℃	150℃	Excellent	Good
Waterproof and oil resistant polyester needle punched felt	500g/550g	1.8-2.0mm	≤130℃	150℃	Excellent	Good
Three proof polyester needle punched felt	500g/550g	1.8-2.0mm	≤130℃	150℃	Excellent	Good
Medium temperature dust removal filter bag
Name	Gram weight	Thickness	Operating temperature	Instantaneous temperature	Acid resistance	Alkali resistance
Acrylic needle punched felt	500g-550g	1.8-2.0mm	≤130℃	150℃	Excellent	Good
Aramid/Metas/Nomex	500g/550g	1.8-2.0mm	≤204℃	240℃	Good	Excellent
PPS PPS needle punched felt	500g/550g	1.8-2.0mm	≤160℃	190℃	Excellent	Good
Pocket filter
Name	Gram weight	Thickness	Operating temperature	Instantaneous temperature	Acid resistance	Alkali resistance
Fiberglass needled mat	950g	2.8-3.0mm	≤280℃	300℃	Good	Excellent
Flumes needle punched felt	950g	2.8-3.0mm	≤260℃	280℃	Good	Excellent
Aramid/Metas/Nomex	950g	2.8-3.0mm	≤260℃	280℃	Good	Excellent
Fiberglass woven fabric	650g	0.6mm	≤260℃	280℃	Good	Excellent
PPS composite needle felt	550g	1.5-2.0mm	≤190℃	220℃	Excellent	Good
P84 composite needle punched felt	950g	2.8-3.0mm	≤260℃	280℃	Excellent	Good
PTFE needle felt	750g	0.8-1.0mm	≤240℃	260℃	Excellent	Excellent

Application Scenario

Core Products

Aluminum Powder Classifier Milling System

Aluminum Powder Classifier Milling system is an innovative device that integrates dry milling and dynamic classification of materials.

Ball Mill

Ball mill is the key equipment for crushing materials after they are broken. The cylinder is generally made of welded steel plates, closed at both ends with end covers, and the inner wall of the cylinder is inlaid with wear-resistant lining to prevent the cylinder from wear.

Explosion Isolation Flap Valve

The explosion-proof flap valve is a pressure differential self-operated dust explosion isolation valve that does not require external electrical equipment.

FAQ

Q1 What qualifications and certifications does your company have?

Our company is ISO9001:2015 certified, with CE certified dust explosion-proof equipment. Some products comply with EN standards. Ruizhi is also a member of the Fire and Explosion Prevention Working Group of the National Committee for Machinery Safety Standardization.

Q2 Is there independent intellectual property rights and third-party testing?

Yes. We own several patents in explosion-proof systems and can provide third-party test reports such as CNAS and CE.

Q3 How long is the delivery cycle?

Standard equipment delivery is 5–9 weeks. Spare parts are usually in stock for fast shipping.

Q4 How to ensure packaging and transportation?

All products are packed in moisture-proof, anti-static, shock-resistant wooden cases, suitable for sea and air shipping.

Q5 How long is the warranty period?

We provide remote support, and operator training through manuals and video tutorials.

Service Warranty

If there is any problem with the product quality, we will replace it free of charge. The warranty period is 12 months, and we will provide free remote technical guidance.

Work with Ruizhi – Global Dust Safety Partner

Get in touch with our team for customized solutions, technical support and reliable explosion-proof equipment.

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Hebei Ruizhi Nano technology Co., Ltd.--30 years of innovation in explosion-proof milling and dust safety equipment, trusted by industries worldwide.