Centrifugal Stock Pump for Paper Pulp Machines
This centrifugal pump is specifically designed to handle thick cellulosic pulp slurries in paper production lines. It features abrasion-resistant impellers and casings made for high-consistency stock transfer in machines making paper or paperboard. Classified under HTS 8413.91.20.00 as a part of stock pumps imported for use with cellulosic pulp, paper, or paperboard making machines.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not specifically imported for pulp/paper machines
General parts of stock pumps fall under the residual provision without the end-use restriction for cellulosic pulp processes.
If fitted with a measuring device
Pumps equipped with flow meters or similar measuring devices are classified separately in their own heading.
If considered a part of complete paper pulp machinery
Parts of machinery for making pulp or paper may shift to Chapter 84 heading 8439 if integral to the full papermaking machine.
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Import Tips & Compliance
• Provide end-use certification proving the pump is for machines making cellulosic pulp, paper, or paperboard to qualify for this specific tariff line
• Ensure documentation includes technical specs showing suitability for stock handling in pulp and paper processes to avoid reclassification
• Verify pump materials are corrosion-resistant for fibrous slurries; common pitfall is mislabeling as general liquid pumps
Related Products under HTS 8413.91.20.00
Thick Stock Consistency Pump for Paperboard Production
A heavy-duty pump engineered for transferring high-consistency cellulosic stock in paperboard manufacturing. It includes variable speed drives for precise flow control in pulp dilution stages. Falls under HTS 8413.91.20.00 due to its dedicated use with paperboard making machines.
Ceramic-Lined Stock Pump for Recycled Paper Machines
Abrasion-resistant ceramic-lined pump for handling recycled cellulosic pulp in paper mills. Ideal for aggressive stock with contaminants. HTS 8413.91.20.00 applies as a stock pump for paper making.
Pulp Dilution Stock Pump for Kraft Paper Machines
Specialized stock pump for diluting concentrated kraft pulp prior to paper forming. Designed with open impellers to prevent clogging from wood fibers. HTS 8413.91.20.00 covers it as a stock pump part for cellulosic paper making equipment.
High-Pressure Stock Feed Pump for Tissue Paper Production
Robust pump for feeding high-pressure cellulosic stock into tissue paper forming sections. Equipped with wear-resistant liners for continuous operation. Classified in HTS 8413.91.20.00 for its role in paper making machines.
Variable Frequency Drive Stock Pump for Corrugated Board
Advanced stock pump with VFD for energy-efficient transfer of pulp stock in corrugated paperboard lines. Optimized for varying consistency levels. Under HTS 8413.91.20.00 for paperboard machine use.
Open Impeller Stock Pump for Newsprint Machines
Open impeller design pump prevents fiber clogging in newsprint production stock lines. Built for high-volume cellulosic pulp handling. HTS 8413.91.20.00 designation for paper making pumps.