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zhouen921@163.comProduct introduction and advantages of normal temperature polyester needle felt filter bag
●Technical parameters
| Product name | Polyester needle felt |
| Material | Polyester large chemical fiber/polyester filament base fabric |
| Thickness | 1.90 ±0.2mm |
| Weight | 550g/m²±10g |
| Breathability | 13-16m³/(m² ·min)/200Pa |
| Tensile strength in warp | >1000(N/5*20cm) |
| Tensile strength in weft | >1300(N/5*20cm) |
| Elongation in warp | <35% |
| Elongation in weft | ≤40% |
| Working temperature | 80-120℃ |
| Post-processing method | Forming, singeing calendering, water repellent and other treatments |
●Product introduction
Normal temperature polyester needle felt filter bag is a filter material made of polyester(polyester)fiber through a needle punching process,and processed into a dust filter bag according to the use requirements.Its structure is a three-dimensional porous fiber network with good air permeability and excellent filtering effect.It is mainly used in dust removal equipment with an operating temperature below 130°C,suitable for collecting various dry dusts.
This product is widely used in dust removal systems under normal temperature conditions such as cement plants,steel plants,woodworking workshops,chemicals,mechanical processing,grain processing,and feed production.
●Product advantages
Good temperature resistance
It can operate stably in an environment below 130°C for a long time,and can withstand a short-term temperature of up to 140°C,meeting most normal temperature industrial dust removal needs.
High mechanical strength
It has good tensile,wear and flexural resistance,is not easy to break,and is suitable for occasions with high working conditions.
High filtration efficiency
The three-dimensional needle-punched structure makes it have strong dust interception ability,high filtration accuracy,and filtration efficiency can reach more than 99%.
Good air permeability and low running resistance
The material structure is uniform and maintains good air permeability,which helps the equipment maintain low running resistance and high dust removal efficiency.
Various surface treatments and strong cleaning performance
It can be treated by singeing,calendering,laminating,etc.according to the use requirements to prevent dust from embedding inside the fiber,facilitate cleaning and extend service life.
High cost performance and low maintenance cost
Compared with high-temperature filter bags or special material filter bags,polyester filter bags have low material costs,mature production processes,and more advantages in comprehensive use costs.
●Company Introduction:
Jiangsu Dongfang Filter Bag Co., Ltd. is an enterprise integrating R&D, production, sales, technical support and service, covering an area of 90,000 square meters. It has 13 production lines imported from Germany, including Autefa, Truetzschler, Karl Mayer, Etten hanging systems, high-speed needling machines, etc. It currently has 220 employees and an annual production capacity of 12 million m².
●Factory appearance:

●Industry Applications:

●FAQ:
Q.What is the filtration efficiency of the room temperature dust bag?
A.The filtration efficiency of the general needle felt material is more than 99%. If the coating technology (PTFE coating) is used, the efficiency can reach more than 99.9%, which is close to "zero emission".
Q.What are the common specifications of the room temperature dust bag?
A.Common diameter: Φ130mm, Φ160mm, Φ180mm, etc.
Length: Commonly 2m, 2.5m, 3m, can also be customized
Installation method: round mouth (steel ring type), spring ring, flange mouth, etc.
Q.What should be paid attention to during use?
A.Avoid excessive temperature to prevent bag burning
Regularly check whether the bag cage and filter bag are damaged
Avoid blockage caused by oily or sticky dust
Keep dry to prevent condensation and bag sticking