Plate and Frame Filter Press for Sludge
Hydraulic filter press using cloth-covered plates to dewater industrial sludge and wastewater solids. HTS 8421.29.00 for other liquid purifying machinery via pressure filtration. Common in mining, chemical, and municipal sludge handling.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If centrifugal sludge dewatering models
Centrifuges have separate provisions from pressure filter presses.
If filter plates/chambers as replacement parts
Parts of filter presses classify under parts provisions.
If for pharmaceutical sterile filtration
Pharma-specific presses may fall under chemical reaction machinery.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Document cake dryness and throughput capacity; hazardous waste handling permits if applicable; verify plate material for corrosive sludge compatibility
Related Products under HTS 8421.29.00
Industrial Sand Filter for Water Treatment
A large-scale sand filter system designed to remove suspended solids from water in municipal or industrial treatment plants. It falls under HTS 8421.29.00 as other filtering machinery for liquids, distinct from oil/gas separators or fuel filters. Sand filters use layers of graded sand to trap particles through mechanical filtration.
Cartridge Filter Housing for Process Water
Stainless steel housing that holds replaceable cartridge filters to remove fine particulates from industrial process water. Classified in HTS 8421.29.00 as other apparatus for purifying liquids through mechanical filtration. Commonly used in food/beverage and pharmaceutical manufacturing.
Bag Filter System for Chemical Processing
Multi-bag filtration system that uses fabric bags to capture solids from corrosive chemical liquids in industrial processes. HTS 8421.29.00 covers this as other purifying apparatus for liquids via mechanical separation. Essential for protecting downstream equipment from contaminants.
Inline Disc Filter for Wastewater
Rotating disc filter that continuously filters wastewater through fine mesh screens for tertiary treatment. Falls under HTS 8421.29.00 for other liquid filtering machinery, excluding oil filters. Used in sewage treatment plants for effluent polishing.
Membrane Filter Module for Ultrapure Water
Cross-flow membrane modules (microfiltration/ultrafiltration) producing ultrapure water for semiconductor fabrication. HTS 8421.29.00 includes these as other purifying apparatus for liquids, critical for removing submicron particles. Excludes reverse osmosis in some contexts.
Vibratory Screen Separator for Slurry
Vibrating screen machine that separates solids from liquid slurries using mesh screens in mining and food processing. Classified HTS 8421.29.00 as other liquid filtering apparatus through mechanical sieving. Handles high-volume wet separation.