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SITCSection 7
U.S. imports of way-type unit head machines for drilling, boring & milling metal (SITC 73141) totaled $1.7M in April 2026, traded with 6 countries.
Importers of Way-Type Unit Head Machines for Drilling, Boring & Milling Metal paid $126K in duties in April 2026 — an effective duty rate of 7.5% on $1.7M in dutiable value, based on actual customs collections rather than the published tariff schedule. Way-Type Unit Head Machines for Drilling, Boring & Milling Metal imports of $1.7M in April 2026 ran 81% above the year-to-date monthly average of $933K.
Last updated: April 2026 dataWay-type unit head machines are purpose-built transfer-line components that perform drilling, boring, milling, and related metal-removal operations through fixed, guided spindle heads mounted on slideways — a design optimized for high-volume, repetitive production rather than flexible machining. Their rigid architecture distinguishes them from conventional machining centers and standalone drilling or milling machines, which is the key classification boundary at SITC 73141. Automotive powertrain and heavy-equipment manufacturers are the primary end users, making import volumes sensitive to production cycles in those sectors.
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Way-type unit head machines use fixed spindle heads guided along slideways and are designed for dedicated, repetitive operations in transfer-line production. Standard machining centers have repositionable spindles and tool-change capability for flexible part processing. This structural distinction — not the operations performed — determines the SITC 73141 classification.
As industrial machinery, they generally require a commercial invoice, packing list, and bill of lading. If the equipment incorporates controlled technology or originates from a country subject to export-control regimes, an export license from the country of origin and review under US import regulations may also be required. Consulting a licensed customs broker is advisable for high-value capital equipment shipments.
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Monthly import values over time