STEP 01
Tell us the process
Material, dust type, number of extraction points, shift pattern and available power. Photos of the machine help more than a datasheet.
About us
Filtration equipment, built in one plant
Tengyuan Filtration Technology (Langfang) Co., Ltd. designs and manufactures the PAISHAN range: dust collectors, welding fume purifiers, pleated filter cartridges, cleaning machines and the parts around them.
20+
Years in filtration
60+
Countries served
17
Cartridge series
9
Granted patents
Who we are
Two decades of making filters, one factory at a time
We extrude media, pleat packs, mould end caps, weld housings and assemble complete systems in Langfang, Hebei. Doing all of it under one roof is what lets us stand behind a selection: if an element does not fit a housing we built, the problem is ours to solve.
The brand customers see is PAISHAN; TENGYUAN is the sister brand used for OEM programmes. Both are produced by Tengyuan Filtration Technology (Langfang) Co., Ltd., and both follow the same inspection routine: incoming material check, in-process control, final performance test and a material report for the file.
We are not the biggest filtration supplier in China, and we do not try to be the cheapest. Our customers are the ones who need the right cartridge the first time — and a supplier who answers the phone when a collector is down.
STEP 02
We size the system
Air volume, capture distance, duct layout and filter area are worked out together, then confirmed with you in writing before anything is built.
STEP 03
We build and test
Housings are welded and blasted in-house, cartridges are pleated and moulded on our own tooling, and each batch is checked before packing.
STEP 04
We ship and support
Palletised with the documentation you need for customs and for your technical file. Selection support continues after delivery.
Made in our own factory
One plant, one team — designed, tooled and assembled under one roof
We extrude, pleat, weld and assemble in one plant in Hebei, China, with two decades of filtration manufacturing behind it. That means one supplier for the collector, the cartridge and the spare parts — and a technical team that answers questions about the equipment it built.
Browse the range
Company facts
- Legal name
- Tengyuan Filtration Technology (Langfang) Co., Ltd.
- Brands
- PAISHAN (main) · TENGYUAN (OEM programmes)
- Location
- Langfang, Hebei, China
- Main products
- Dust collectors · fume purifiers · KNT and PS filter cartridges · cleaning machines · cyclones · parts
- Certification
- Material test reports on request; patent documents for the cartridge design
- Languages
- English · Chinese
Talk to a person
Technical questions are answered by the engineers who configure the systems, not a call centre. Send a drawing, a photo of the machine or the model of the cartridge you are replacing.
Request catalogue
View our entire range of dust and fume extraction products in our latest catalogue — model tables, media options and installation notes. Download the PDF, or ask us to send the copy that matches your process.
Equipment catalogue · 20 MB · Filter cartridge catalogue · 23 MB
Any questions?
Tell us the process — we will size the system with you.
Request catalogue
Leave your details and our engineers will send the catalogue that matches your process.
Thank you
Your request is on its way to our sales engineers. Catalogues are normally sent within one working day — check your spam folder if you do not see it.
Send it as an email
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