Find HS Code and trade information for pendulum support

Pendulum Support

A pendulum support is a mechanical device used to stabilize and maintain the position of a load, typically heavy equipment or components, during maintenance, repair, or assembly operations. It allows for controlled movement in a limited arc, mimicking the motion of a pendulum, while providing a secure holding force.

Material

Pendulum supports are commonly constructed from high-strength materials to withstand significant weight and stress. Common materials include:

• Steel: Most frequently used due to its high load capacity, durability, and relatively low cost. Alloy steels are often employed for increased strength and resistance to corrosion.
• Aluminum: Used in applications where weight reduction is critical, offering a lighter alternative to steel, though with a lower load capacity.
• Stainless Steel: Employed in corrosive environments or applications requiring high hygiene standards.
• Composite Materials: Increasingly used for specialized applications requiring very high strength-to-weight ratios and corrosion resistance.

Purpose

The primary purpose of a pendulum support is to:

• Reduce Lifting Requirements: Allows for controlled lowering and raising of heavy components without the need for full lifting, reducing the size and capacity of required lifting equipment.
• Facilitate Maintenance: Enables access to equipment components for inspection, repair, or replacement while maintaining a degree of stability.
• Improve Safety: Minimizes the risk of uncontrolled drops or movements during operations.
• Positioning and Alignment: Allows for precise positioning of components during assembly or disassembly.

Function

A pendulum support typically functions based on the following principles:

• Pivot Point: A central pivot point allows the load to swing in an arc.
• Load Suspension: A mechanism, such as a hook, shackle, or cradle, suspends the load.
• Dampening System: Many supports incorporate dampening systems (hydraulic, friction-based, or spring-loaded) to control the swinging motion and prevent excessive movement.
• Locking Mechanism: A locking mechanism is often included to secure the load in a specific position.
• Adjustment Capability: Adjustment features allow for adapting to different load sizes and shapes.

Usage Scenarios

• Wind Turbine Maintenance: Used extensively for holding blades, nacelles, and other turbine components during repair or replacement.
• Aircraft Engine Maintenance: Supports engine sections during disassembly and reassembly.
• Shipbuilding and Repair: Used for supporting large ship components during maintenance or construction.
• Heavy Machinery Repair: Supports large components of machinery during repair or overhaul.
• Power Generation: Used for maintenance of generators, turbines, and other power plant equipment.
• Bridge Construction and Repair: Supports bridge sections during construction or repair operations.

Common Types

• Hydraulic Pendulum Supports: Utilize hydraulic cylinders to control the swinging motion and provide precise positioning. Offer high load capacity and smooth operation.
• Friction-Based Pendulum Supports: Employ friction to damp the swinging motion. Simpler and more cost-effective than hydraulic supports, but offer less precise control.
• Spring-Loaded Pendulum Supports: Use springs to dampen the swinging motion. Suitable for lighter loads and applications where precise control is not critical.
• Manual Pendulum Supports: Require manual adjustment and locking. Suitable for simple applications and lower loads.
• Powered Pendulum Supports: Utilize electric or pneumatic power to control the swinging motion and provide precise positioning. Offer high load capacity and automated operation.
• Rotating Pendulum Supports: Allow for rotation of the load in addition to swinging motion, providing greater flexibility for complex operations.

Based on the provided information, the following HS codes may be relevant to “pendulum support”:

• 7308907000: Structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge sections, lock gates, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, shutters, balustrades, pillars and columns) of iron or steel; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in structures, of iron or steel: Other: Steel grating.
  • 73: Structures of iron or steel.
  • 08: Structures and parts of structures of iron or steel.
  • 90: Other. This subheading covers parts of structures not specifically mentioned elsewhere, potentially including steel grating used as a support component.
• 7308909560: Structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge sections, lock gates, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, shutters, balustrades, pillars and columns) of iron or steel; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in structures, of iron or steel: Other: Other: Architectural and ornamental work.
  • 73: Structures of iron or steel.
  • 08: Structures and parts of structures of iron or steel.
  • 90: Other. This subheading covers other parts of structures, which could include specialized supports.
• 7326908688: Other articles of iron or steel: Other: Other: Other: Other Other.
  • 73: Articles of iron or steel.
  • 26: Other articles of iron or steel.
  • 90: Other. This is a broad category for various iron or steel articles, potentially encompassing pendulum supports depending on their specific design.

Regarding HS code 7308907000 and 7308909560, please note the 25%加征关税 and the potential for a 30%加征关税 after 2025.4.2, as well as the additional 25%加征关税 for steel and aluminum products.

Regarding HS code 7326908688, please note the 25%加征关税 and the potential for a 30%加征关税 after 2025.4.2, as well as the additional 25%加征关税 for steel and aluminum products.