Manual Multi-Ratio Gearbox for Pulp Digger Agitator
Heavy-duty gearbox with multiple manually selectable ratios for driving agitators in pulp digesters, which cook wood chips into pulp for paper production. Features robust housing for high-pressure steam environments. HTS 8483.40.30 applies as it's imported dedicated for cellulosic pulp making machines.
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 imported assembled with digester motor as unit
Machinery parts presented with the machine itself classified under the complete machine heading.
If primarily transmission shafts/crankshafts
Heading shifts if dominant function is shaft transmission rather than speed changing.
If for provisional chemical processing in pulp mills
Other pulp preparation machines not strictly pulp-making fall under provisional machinery provisions.
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
• Obtain letter of intent from paper mill buyer specifying digester use before import
• Document ratio selection mechanism as manual to distinguish from automatic changers
Related Products under HTS 8483.40.30
Fixed Ratio Gearbox for Pulp Refiner
A fixed ratio speed changer gearbox designed specifically for use in pulp refiners, which process wood chips into cellulosic pulp for paper production. It transmits power from the motor to the refiner disc at a constant speed ratio, enduring high torque and abrasive conditions in pulp mills. Classified under HTS 8483.40.30 due to its importation explicitly for machines making cellulosic pulp.
Variable Ratio Speed Changer for Paper Machine Drive
A multiple ratio speed changer with manual gear selection for adjusting speeds in paper machine wet end drives, enabling optimization during cellulosic pulp processing to paper. Built with corrosion-resistant materials for humid paper mill environments. Falls under HTS 8483.40.30 as imported expressly for paperboard manufacturing equipment.
Fixed Speed Reducer for Paperboard Calender Drive
Compact fixed ratio speed reducer transmitting power to calender rolls in paperboard finishing machines, reducing motor speed for precise sheet compression from pulp slurry. Designed for high-load paper production lines. Imported for paperboard machines qualifies it for HTS 8483.40.30.
Multi-Ratio Speed Changer for Paper Stock Pump
Gearbox with multiple manual ratios for driving pulp stock pumps that circulate cellulosic slurry in paper machines. High-efficiency design for continuous operation. Specifically for paper making qualifies under HTS 8483.40.30.
Manual Gear Selector for Paper Press Section
Variable ratio gearbox with manual selector for press rolls in paper machines, squeezing water from pulp web. Heavy-duty for production pressures. Imported for paperboard machines under HTS 8483.40.30.
Hand-Shift Variable Gearbox for Pulp Screen Drive
Variable speed changer with hand lever for adjusting pulp screen rotation speeds, separating fibers in cellulosic pulp preparation for paperboard. Corrosion-proof for wet pulp handling. HTS 8483.40.30 due to dedicated pulp machine importation.