U.S. imports of Self-Propelled Boring & Sinking Machinery (NES) (SITC 72337) totaled $65.0M in August 2026, imported from 19 countries.
Importers of Self-Propelled Boring & Sinking Machinery (NES) paid $4.4M in duties in August 2026, an average duty rate of 6.82% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Self-Propelled Boring & Sinking Machinery (NES) imports of $65.0M in August 2026 ran 20% above the year-to-date monthly average of $54.3M.
Last updated: August 2026 dataBoring and sinking machinery not elsewhere specified — including water-well drilling rigs, blast-hole drills, and shaft-sinking equipment mounted on self-propelled carriers — falls under this residual heading when no more specific SITC category applies. The 'NES' qualifier means classification here is appropriate only after confirming the equipment does not belong to a more specific heading such as coal or rock cutters (72335). Drill rig configurations vary widely by rotary versus percussion drive, mast height, and carrier type, all of which can affect HTS subheading assignment.
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91 import shipments a month
The NES (not elsewhere specified) qualifier requires a process of elimination. If the rig is designed primarily for coal or rock cutting and tunneling, it belongs under 72335. If it is a geotechnical or water-well drill mounted on a self-propelled chassis with no more specific classification, 72337 applies. Consulting the SITC explanatory notes and the corresponding HTS chapter notes — and, when in doubt, obtaining a CBP binding ruling — is the recommended approach.
At the SITC level, carrier type does not change the heading, but it can matter at the HTS 10-digit level where subheadings sometimes distinguish wheeled from crawler-mounted units. Importers should include the carrier configuration in their classification analysis and verify with a licensed customs broker.
Basic heading 201 of 642 in section 7
Basic heading 72337 · $65.0M of $172.0B
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Imports · August 2026
origin
Sweden and Germany together supply 43% of it. Sweden pays 10.0% duty; Austria 0.0%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$65.0MYoY · free account
Exports
$42.8MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $581.9M of Self-Propelled Boring & Sinking Machinery (NES).
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.