Manufacturing Method & Equipment

The company has a complete production line from the production of raw material filter materials to the processing of finished products for customer requirements. It has the characteristics of stable product quality and quick response.

Nonwoven Filter Production Line

Raw Materials

The main raw materials used are staple fibers such as rayon and polyester. sometimes several types of staple fiber are mixes and used as a blend in order to create the physical properties required for customer's needs.

Bale Opener & Mixing staples

The raw material is a block shape of 200 kg to 300 kg. In this step, the block-shaped staple fibers are disassembled and mixed, and the weight ratio of the mixture is adjusted to ensure the supply of raw material in the subsequent process.

Carding

The treated raw material passes through the metal detection system which takes off metallic impurities from raw material. In the middle of carding process, carding rollers make the raw material even and uniform in texture for the next process.

Needle Punching

Non-woven fabric after carding proces is effectively combined by needle punching process because the structure of non-woven fabrics after the carding process is still soft and easy to be cut off by external shock. By needle punching process, both tensile strength and bonding structure of non-woven fabric are highly reinforced.

Thermal Bonding

Non-woven fabric is dried by hot air in this process. The heat that set up at a certain temperature melts the surface of the short fibers and the fibers are strongly bonded together to meet the purpose of filtration materials.

Inspection

The foreign substance, dirt, smudge and wrinkles are strictly inspected, marked, and recorded by a high-speed camera.

Winding

After inspection process, non-woven material is wound into the shape of roll. The width and length are customized according to the width of final products or customer's requirements. The maximum width of the product is 2300mm.

Electrification Processing

The filter fiber is subjected to electrification processing to increase dust collection efficiency of the filter material. Through the many designed experiments, the optimal conditions that produce the best value for the response set up. The processing width is up to 2300mm.

Compound Processing

Ultrasonic Composite Processing

The two different filter media are overlapped and welded into one filter media by ultrasonication withour any glue such as hot melt adhesive. The width of finished product up to 1000mm max.

Hot Melt Adhesive Laminating Processing

The two different filter media are compounded together by spraying hot melt adhesive in the middle of both filter media. The width of finished product is up to 1300mm. The peel strength is stronger than that of ultrasonic and this type of binding is widely used in this field of industry.

Activated Carbon Composite Processing

The required gas absorption efficiency can be met by mixing various type of activated carbon. The width of finished product is up to 1000mm.

Coating & Printing

Antifungal solution or other agents can be coated on the surface of non-woven media through this printing process for many purposes of industry. The width of coating is up to 1000 mm.

Slitting

The roll products can be cut into various widths and lengths required by customers and additional process.
The range of slitting width is from 10 mm to 2200 mm.

Filter Product Processing (Pleating, Edge bonding, Printing, Inspection)

Pleating machine folds filter media in 'W' shape to add extra dimension on each filter. By adding more dimension, the filter can collect more dust and also lower its pressure drop at the same time.
Servo motors strictly controls the accuracy of width and height. The height of pleat processing height ranges from 10mm to 50mm. The maximum width is 950mm.
Pleated bundles are installed in fixture for edge bonding process and Edge bonding machines are operated as they are programmed.
In printing process, the part number, logo, serial number, air flow and any other information are printed exactly same as requested by customers.

Injection Molding Processing

Vertical type of injection molding machine (100 Ton). The equipment is composed of drying process, melting process, injection process, and cooling process.
The raw material is round-shaped resin pellet. Pleated products are inserted into the mold and processed.

Cutting Processing

Cutting wide and soft non-woven products. The maximum width is 600mm.

Contact Us

Shandong Xingao Industry Co.,Ltd.

No. 66-2, Qishan Road, Cao Miaozi, Industrial New District, Weihai, Shandong, China
Tel: +86-631-558-0088 Fax: +86-631-558-0089
E-mail: business@sxi.net.cn