High-Pressure Steam Turbine Spindle
Precision-machined spindle for the high-pressure stage of steam turbines, designed to withstand extreme temperatures and rotational stresses. Falls under HTS 8406.90.4540 as a spindle component of steam turbines used in electricity generation.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for superheated steam turbines
Spindles for turbines designed for superheated steam use a different subheading within 8406.90.
If parts of fuel injection pumps
Similar spindles in pump machinery classify under 8431, based on end-use in non-turbine applications.
If imported in sets with bearings
Assemblies including substantial bearings may shift to 8483.10 for transmission shafts and cranks.
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Import Tips & Compliance
• Include material specs (e.g
• high-alloy steel) and pressure ratings in invoices; comply with ASME standards certification; avoid misdeclaration as general shafts to prevent reclassification
Related Products under HTS 8406.90.45.40
Steam Turbine Rotor Assembly
A complete rotor assembly for industrial steam turbines, consisting of the central shaft with attached blades optimized for high-speed rotation in vapor expansion. Classified under HTS 8406.90.4540 as a rotor or spindle assembly specifically for steam turbines, essential for converting thermal energy into mechanical power in power plants.
Low-Pressure Steam Turbine Rotor
Long-blade rotor for the low-pressure section of condensing steam turbines, engineered for maximum exhaust flow in large-scale power stations. Classified in HTS 8406.90.4540 as a rotor of steam turbines.
Forged Steam Turbine Rotor Shaft
Forged steel shaft serving as the core spindle for steam turbine rotors, with keyed sections for blade attachment. HTS 8406.90.4540 applies to such spindles and assemblies dedicated to steam turbines.
Combined High/Low Pressure Turbine Rotor Assembly
Integrated rotor assembly spanning high- and low-pressure stages in tandem-compound steam turbines for marine propulsion. Specifically classified under HTS 8406.90.4540 for steam turbine rotor assemblies.
Steam Turbine Rotor Balancing Assembly
Pre-assembled rotor with balance weights and test fixtures for high-speed steam turbine applications. HTS 8406.90.4540 covers such rotor assemblies as parts of steam turbines.
Industrial Steam Turbine Spindle Shaft
Robust spindle shaft for cogeneration steam turbines in industrial plants, supporting impeller-style blades. Classified in HTS 8406.90.4540 as a steam turbine spindle.