Find HS Code and trade information for drying plate

Drying Plate

A drying plate is a flat, typically heated surface used to facilitate the removal of liquids from samples, often through evaporation. They are employed across a variety of scientific, industrial, and domestic applications.

Material

Drying plates are constructed from materials selected for their thermal conductivity, chemical resistance, and ease of cleaning. Common materials include:

• Aluminum: Lightweight, excellent thermal conductivity, and relatively inexpensive. Often anodized for corrosion resistance.
• Stainless Steel: Durable, corrosion-resistant, and suitable for high-temperature applications.
• Glass: Inert, transparent (allowing visual monitoring), and suitable for sensitive samples. Borosilicate glass is preferred for thermal shock resistance.
• Ceramic: High temperature resistance, chemically inert, but can be brittle.
• PTFE (Teflon): Chemically resistant, non-stick surface, suitable for highly corrosive samples.

Purpose

The primary purpose of a drying plate is to accelerate the drying process. This is achieved through:

• Heat: Providing thermal energy to increase the evaporation rate of the liquid.
• Surface Area: Offering a large surface area for the liquid to evaporate from.
• Controlled Environment: Some plates offer controlled temperature and airflow to optimize drying.

Function

Drying plates function by transferring heat to the sample, increasing the kinetic energy of the liquid molecules and promoting their transition from the liquid to the gaseous phase. The heat source can be:

• Electric Resistance Heating: Embedded heating elements within the plate.
• Hot Water Circulation: Passing hot water through channels within the plate.
• Steam Heating: Using steam to heat the plate.
• External Heat Source: Placing the plate on a hot plate or within an oven.

Usage Scenarios

• Laboratory: Drying glassware, evaporating solvents, preparing samples for analysis (e.g., weighing, microscopy).
• Food Industry: Drying fruits, vegetables, herbs, and spices.
• Pharmaceutical Industry: Drying powders, granules, and excipients.
• Manufacturing: Drying coatings, adhesives, and inks.
• Domestic: Drying dishes (though less common with modern dishwashers).

Common Types

• Hot Plate Stirrers with Drying Plates: Combine heating and stirring for faster and more uniform drying.
• Vacuum Drying Plates: Used in conjunction with a vacuum pump to lower the boiling point of the liquid and accelerate drying, particularly for heat-sensitive materials.
• Freeze Drying Plates (Lyophilization Plates): Used in freeze dryers to remove water through sublimation. These plates are typically cooled.
• Heated Glass Plates: Used for evaporation of solvents or for drying small samples.
• Digital Heated Stirring Hot Plates with Drying Plates: Offer precise temperature control and digital displays.
• Solar Drying Plates: Utilize solar energy for drying, often used in agricultural applications.

Based on the provided information, “drying plate” can be classified under the following HS codes:

• 8451903000: This HS code covers machinery (other than machines of heading 8450) for washing, cleaning, wringing, drying, ironing, pressing (including fusing presses), bleaching, dyeing, dressing, finishing, coating or impregnating textile yarns, fabrics or made up textile articles and machines for applying the paste to the base fabric or other support used in the manufacture of floor coverings such as linoleum; machines for reeling, unreeling, folding, cutting or pinking textile fabrics; parts thereof. Specifically, it includes drying chambers for the drying machines of subheading 8451.21 or 8451.29, and other parts of drying machines incorporating drying chambers.

  • 84: Chapter 84 covers Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof.
  • 51: Heading 8451 covers Machinery (other than machines of heading 8450) for washing, cleaning, wringing, drying, ironing, pressing, bleaching, etc.
  • 90: Subheading 8451.90 covers Parts of machines of headings 8451.21 or 8451.29.
  • 30: This further specifies drying chambers for the drying machines of subheading 8451.21 or 8451.29, and other parts of drying machines incorporating drying chambers.

• 7323997000: This HS code covers Table, kitchen or other household articles and parts thereof, of iron or steel; iron or steel wool; pot scourers and polishing pads, gloves and the like, of iron or steel: Other: Other: Not coated or plated with precious metal: Other: Cookingware. If the drying plate is used as cookingware, this code may be applicable.

  • 73: Chapter 73 covers Articles of iron or steel.
  • 23: Heading 7323 covers Table, kitchen or other household articles and parts thereof, of iron or steel.
  • 99: Subheading 7323.99 covers Other.
  • 70: This further specifies Other: Not coated or plated with precious metal: Other: Cookingware.

• 7323999080: This HS code covers Table, kitchen or other household articles and parts thereof, of iron or steel; iron or steel wool; pot scourers and polishing pads, gloves and the like, of iron or steel: Other: Other: Not coated or plated with precious metal: Other: Other Other. If the drying plate does not fall into the cookingware category within 7323.997000, this code may be applicable.

  • 73: Chapter 73 covers Articles of iron or steel.
  • 23: Heading 7323 covers Table, kitchen or other household articles and parts thereof, of iron or steel.
  • 99: Subheading 7323.99 covers Other.
  • 90: This further specifies Other: Not coated or plated with precious metal: Other: Other Other.

• 7326908688: This HS code covers Other articles of iron or steel: Other: Other: Other: Other Other. If the drying plate does not fall into the categories covered by the above codes, this code may be applicable.

  • 73: Chapter 73 covers Articles of iron or steel.
  • 26: Heading 7326 covers Other articles of iron or steel.
  • 90: Subheading 7326.90 covers Other.
  • 86: This further specifies Other: Other: Other: Other Other.

Regarding HS codes 7323997000, 7323999080, and 7326908688, please note a 25%加征关税 applies to steel and aluminum products, in addition to the base tariff. A 30%加征关税 will be applied after April 2, 2025.