Of profile projectors
Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof: > Parts and accessories: > Of profile projectors
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 9031.90.21.00
Profile Projector Worktable Clamp Set
Precision clamp set for securing workpieces on profile projector stages, featuring fine adjustment mechanisms. Ensures stable positioning for accurate silhouette projection and measurement. HTS 9031.90.21.00 as profile projector-specific accessory.
Profile Projector Overlay Template Holder
Adjustable magnetic holder for Mylar/acetate overlay templates on profile projector screens. Facilitates direct comparison of projected profiles against master templates. Dedicated part under HTS 9031.90.21.00.
Profile Projector Edge Detector Sensor
Optical edge detection sensor for automated profile projectors, identifying workpiece boundaries for digital measurement. Integrates with projection system for sub-pixel accuracy. Specific part under 9031.90.21.00.
Profile Projector Quick-Change Lens Turret
Rotary lens turret mechanism holding multiple magnification objectives for profile projectors. Enables rapid lens changes without realignment. Precision part HTS 9031.90.21.00.
Profile Projector Vibration Isolation Mounts
Granite base isolation mounts with pneumatic leveling for profile projectors, minimizing vibration effects on measurements. Engineered for specific projector footprints. HTS 9031.90.21.00 support part.
Profile Projector Encoder Feedback Kit
Linear glass scale encoder kit for profile projector measuring stages, providing closed-loop position feedback. High-resolution digital output for DRO integration. Electronic part HTS 9031.90.21.00.
Profile Projector Telecentric Lens Adapter
Adapter ring and mounting bracket converting standard profile projectors for telecentric optics use. Eliminates parallax error in critical measurements. Dedicated optical accessory HTS 9031.90.21.00.
Profile Projector Objective Lens Assembly
Precision objective lens assembly designed specifically for profile projectors used in measuring and checking machine parts. It projects magnified images of contours onto a screen for accurate dimensional inspection. Classified under HTS 9031.90.21.00 as a dedicated part of profile projectors per Chapter 90 note 2(a).
Profile Projector Projection Screen
High-resolution ground glass screen for profile projectors that displays clear, distortion-free magnified profiles of workpieces. Essential for visual measurement and comparison against templates. Falls under HTS 9031.90.21.00 as a part dedicated to profile projectors.
Profile Projector LED Illuminator Module
High-intensity LED contour illuminator module tailored for profile projectors, providing uniform backlight for sharp edge projection. Replaces traditional halogen systems for better precision. Classifies under 9031.90.21.00 as dedicated profile projector part.
Profile Projector X-Y Measuring Stage
Precision X-Y linear stage with micrometer drives for profile projectors, enabling exact workpiece positioning. Features 0.001mm resolution for dimensional verification. HTS 9031.90.21.00 part of profile projectors.
Profile Projector Vertical Motion Mechanism
Servo-driven vertical adjustment mechanism for profile projector optical heads, providing focus control. Ensures sharp projection across workpieces of varying heights. Classifies as HTS 9031.90.21.00 part.
Profile Projector Digital Readout Interface
Interface module connecting profile projector stages to digital readout displays for X-Y measurements. Converts encoder signals to precise dimensional data. HTS 9031.90.21.00 electronic part.
Profile Projector Calibration Standard Kit
Precision chrome-plated calibration gage block set specifically for profile projector verification. NIST-traceable standards ensure measurement accuracy compliance. Dedicated accessory HTS 9031.90.21.00.
Profile Projector Dust Cover System
Custom accordion-style dust cover for profile projector worktables and columns, protecting precision mechanics. Designed to fit specific projector frame dimensions. Classifies HTS 9031.90.21.00 protective part.