TMP Pulp Double-Disc Refiner Disc Segment
Segmented alloy steel discs for thermomechanical pulp (TMP) double-disc refiners treating wood chips into pulp stock. Under HTS 8439.91.10.00 as stock-treating pulp parts.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If specifically for chemical TMP processes
Chemical wood pulp treatment parts have statistical separation.
If imported as saw blades or metal cutting tools
Discs resembling saws classify under Chapter 82 tools if not machinery-specific.
If precision-molded as metal molds or dies
Stock treatment patterns may resemble molding dies in 8480.
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Import Tips & Compliance
• Include hardness testing certificates (Rockwell/Brinell) for wear parts validation
• Segmented design requires packing lists showing complete disc assembly requirements
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