Industrial Dust Removal Filter Media Paper

The three properties that decide the specification

 

Stiffness and moisture resistance. Industrial elements are large, often 600–1200 mm long, and supported only at the end caps. A media that relaxes in humid air lets pleats sag and the pack to close up, which converts designed media area into dead area. Our industrial grades are built for high stiffness and low moisture regain so pleat geometry holds through a wet season, not just at commissioning.

Flame retardancy. Where the intake can draw in sparks, hot particles or flammable mist - welding shops, steel plants, biomass handling, some coastal and desert installations - a flame retardant media is a specification requirement, not an upgrade. The treatment is applied at the sheet stage and does not change the converting process.

Anti-static performance. Dry particulate moving at 10–20 m/s through a synthetic media generates a static charge that holds dust on the surface, blinds the pleats earlier, and in the presence of hydrocarbon vapour is a genuine ignition risk. Anti-static treatment gives the sheet a controlled dissipation path, so the dust releases into the hopper during pulse cleaning and the elements clean down properly.

Efficiency level is customised to the customer's requirement rather than fixed - a turbine pre-filter, a turbine final filter and a compressor intake filter are three different efficiency specifications built on the same platform.

 

 

Gas turbine intake - pre-filter and final filter stages, including coastal installations where salt aerosol accompanies dust.

Air compressor intake - protecting lubricant and bearings from abrasive fines.

Lithium battery plant dust removal - electrode coating and assembly areas, where particulate control affects yield and safety.

Coating and film lines, cleanroom HVAC pre-filtration, paint booth intake.

Steel, cement, biomass and bulk handling - the high-spark, high-dust environments where flame retardancy and anti-static are mandatory.

 

 

Grade	Basis weight (g/m²)	Thickness (mm)	Corrugation depth (mm)	Air permeability @200 Pa (L/m²·s)	Max pore size (µm)
HTZNF389	138	0.52	0.30	200	70
HTZ7406	135	0.45	0.25	395	85
HTK1116	116	0.38	0.30	170	55

 

HTZNF389 - the dense, fine grade. 200 L/m²·s and 70 µm max pore at 0.52 mm thickness. This is the industrial final-stage candidate where the machine downstream is expensive and the consequence of carry-over is measured in overhaul cost.

HTZ7406 - the balanced grade. 395 L/m²·s and 85 µm at 0.45 mm. Suits pre-filter and medium-efficiency stages, and compressor intakes where restriction budget matters more than the last 10 µm of capture.

HTK1116 - the fine, thin grade. 170 L/m²·s, 55 µm, 0.38 mm. Usable as a final stage, and useful where media area is limited and the finest available pore is needed in a thin sheet.

 

Why the media choice changes with the filter stage

A two-stage turbine intake system does not use the same media in both stages, and using one sheet across the whole system is the most common cause of premature final-filter loading. The pre-filter is meant to be cheap, open and disposable - HTZ7406 fits. The final filter is meant to hold the last few microns at a restriction the turbine can tolerate - HTZNF389 fits. Putting the dense grade in the pre-filter position raises restriction from day one; putting the open grade in the final position passes the fine fraction straight through.

 

 

Converting and supply format

Rolls slit to pleater width; corrugation available at 0.25 mm and 0.30 mm.

Flame retardant and anti-static treatments applied at sheet stage, so converters run one process.

Consistent stiffness batch to batch, because pleat height tolerance in large elements is tighter than in automotive panels.

Grades can be supplied with and without corrugation.

 

 

 

FAQ

 

Can flame retardancy and anti-static be combined on one sheet?

Yes, both are sheet-stage treatments and are specified together where the application requires it - for example a painting-line or welding-shop intake.

 

Does the anti-static treatment affect filtration efficiency?

It is not designed to. It modifies surface charge dissipation, not pore structure, so the grade's efficiency and permeability specifications stay as listed.

 

Which grade suits a gas turbine pre-filter?

HTZ7406 for the pre-filter stage, HTZNF389 for the final stage. Sizing depends on the turbine's allowable inlet restriction, which we confirm with the OEM's intake specification.

 

Is moisture resistance a coating or a property of the sheet?

Both matter. We control moisture regain through fibre selection and resin chemistry so the sheet itself resists relaxation, and can add a treatment where liquid water exposure is expected.

 

What efficiency can be reached?

Efficiency level is customised. The base platform sets the pore structure; the efficiency specification is set with the customer against the machine's protection requirement.

 

 

 

 

Hot Tags: industrial dust removal filter media paper, China, suppliers, wholesale, buy, price