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SITCSection 7
U.S. imports of numerically controlled metal bending, folding, straightening & flattening machines (SITC 73312) totaled $34.2M in April 2026, traded with 26 countries.
Importers of Numerically Controlled Metal Bending, Folding, Straightening & Flattening Machines paid $3.6M in duties in April 2026 — an effective duty rate of 11% on $33.8M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataNumerically controlled press brakes, plate-bending rolls, and straightening machines under SITC 73312 represent the CNC tier of sheet and plate forming equipment, where programmable back-gauges and angle-measurement systems enable repeatable, high-precision bends across production runs in structural fabrication, HVAC, and enclosure manufacturing. The NC/CNC distinction is the primary classification boundary separating this heading from its non-numerically-controlled counterpart (SITC 73313), and importers must confirm the machine's control architecture—not merely the presence of a digital readout—to assign the correct code. Modern fiber-laser-integrated CNC press brakes and multi-axis bending cells are among the higher-value machines traded under this heading.
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Not necessarily. A digital readout displays position but does not automatically control machine movement through a programmed sequence. True numerical control (NC or CNC) involves a controller that drives axes through stored programs. Customs classification should be based on whether the machine's back-gauge and ram are driven by a programmable NC controller, not merely monitored by a DRO.
The split reflects both technological capability and, in some tariff schedules, different duty treatment. CNC press brakes command significantly higher unit values and are more commonly sourced from specialized machine tool exporters. For importers, correctly identifying the control type avoids misclassification between 73312 and 73313, which can affect duty liability and trade statistics reporting.
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Monthly import values over time