Industrial Variable Speed Drive
A mechanical device using belts, pulleys, and cones to provide stepless speed variation in industrial machinery. Classified under HTS 8486.40.70.00 as an other speed changer due to its function in altering rotational speed without discrete gears. Used in conveyors, fans, and pumps for precise control.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If functions primarily as a torque converter
Torque converters use fluid coupling for speed/torque change, classified separately from mechanical speed changers.
If incorporates AC motor and electronic speed control
Motor-speed controller combinations fall under Chapter 85 electrical machinery.
If for semiconductor wafer processing equipment
Statistical provisions move certain industrial speed changers used in chip fabrication to Chapter 84 machinery.
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Import Tips & Compliance
• Verify mechanical design excludes electronic controls to avoid Chapter 85 classification
• Provide engineering specs confirming speed change via mechanical means like pulleys
Related Products under HTS 8483.40.70.00
Multi-Step Pulley Speed Reducer
Speed changer with multiple fixed-diameter pulleys on stepped cones for discrete speed settings via belt repositioning. HTS 8486.40.70.00 covers this as mechanical speed changer alternative to gear systems. Used in lathes, drill presses, and agricultural equipment.
Crystal Puller Drive Speed Changer
Variable speed mechanical transmission for Czochralski crystal pullers producing monocrystalline silicon boules. HTS 8486.40.70.00 applies to semiconductor manufacturing equipment per statistical notes. Controls precise pull rates for defect-free crystals.
Belt-Type Continuously Variable Transmission
CVT using metal push-belt and variable pulleys for automotive and industrial applications. Mechanical speed changer under HTS 8486.40.70.00 excluding torque converters. Provides infinite speed ratios within operating range.
Float Zone Crystal Growth Speed Changer
Precision speed changer for float zone method crystal growers producing semiconductor material boules. Covered by HTS 8486.40.70.00 statistical provisions for wafer manufacturing equipment. Controls zone travel speed for purity control.
Wafer Slicing Saw Speed Controller
Mechanical speed changer regulating diamond saw blade RPM for slicing semiconductor wafers from boules. HTS 8486.40.70.00 per statistical note (a)(ii)(B) wafer slicing equipment. Ensures precise kerf width and surface quality.
Machine Tool Variable Speed Head
Spindle speed changer for CNC mills and lathes using mechanical gearing or belts. HTS 8486.40.70.00 as other speed changer for metalworking machinery. Provides wide speed range for different materials and tools.