Wafer Lapping Machine Axial Vacuum Pump
Axial vacuum pump removing slurry and debris during the lapping process that achieves critical flatness on semiconductor wafers prior to fabrication. Classified in HTS 8414.80.20.15 as axial pumps for wafer preparation equipment listed in statistical notes.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If primarily for liquid slurry handling
Centrifugal slurry pumps classify under liquid pumps rather than gas/vacuum.
If as mold closing unit in lapping press
Pressurized systems in forming equipment use different compressor headings.
If for optical flatness testing integration
Statistical notes route testing-related pumps to Chapter 90 instruments.
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Import Tips & Compliance
• Specify lapping tolerances achieved (e.g
• <1 micron flatness); include slurry compatibility data; ensure ATEX certification if explosive atmospheres apply
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