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Professional filter bags manufacturer & supplier since 1990 - Tianyi Filter

Elevating Excellence:Tianyi’s 5-Step Quality Assurance

Since 1990,we have gone through many hardships and setbacks,only then did we become who we are today.We used to be just a small factory,now our filter bags are widely used in industrial filtration, water treatment, food and beverage industries all over the world.And you must wonder:why can our filter bags be used in so many industries?
As a filter bag, it must face various difficult environments, which means that every filter bag requires extremely high quality.We are well aware of this and strictly adhere to our standards:At Tianyi Environmental Protection And Technology Co.,Ltd., every product undergoes ​five meticulous inspection stages to ensure unparalleled reliability and performance. 1.Material Selection: Precision from the Start,Our technicians meticulously examine raw materials, verifying mesh uniformity and surface smoothness. Any irregularity in pore distribution or material texture is rejected immediately.2.Slice Integrity Check: During cutting, workers inspect each slice for completeness and dimensional accuracy.3.Pre-Stitching Inspection: Before stitching, sewing operators re-examine fabric integrity, ensuring no hidden flaws like micro-tears or contamination. This step aligns with our ​SOP (Standard Operating Procedure).4.Threadwork Scrutiny: Post-sewing, every seam undergoes a tension test and visual inspection to detect loose threads or misalignment. Our defect rate remains below ​0.1%​ thanks to this dual-layer verification.5.Comprehensive Final Check: Before packaging, products are checked for surface imperfections, size deviations, or functional issues. Only flawless items are approved for shipment, ensuring customer satisfaction.Elevating Excellence:Tianyi’s 5-Step Quality Assurance 1
We have been involved in the filtration industry for over 30 years.But we still remain true to our original aspiration:try to be better in the filtration industry.Contact us and we are ready to offer you our best service!






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zada@cn-tyfilter.com
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Zada Zhu
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