Powder loose packing density meterIt is a precision instrument used to determine the mass per unit volume of powders or particles in their natural accumulation state, widely used in fields such as powder metallurgy, chemical engineering, pharmaceuticals, food processing, battery materials, etc. It is based on the principle that materials naturally fill standard measuring cups under the action of gravity in a free flowing state. The material falls freely into the measuring cup through the funnel, and after filling, the excess material is scraped flat with a scraper. After weighing the mass of the material in the measuring cup, the loose density (unit: g/cm ³ or kg/m ³) is calculated by the ratio of mass to volume.
Powder loose packing density meterIts core components and functions are as follows:
1. Funnel (feeding device)
Function: Control the flow of powder to achieve uniform feeding.
Design points:
Standard funnel: Complies with international standards such as ISO 3923 or ASTM B212, typically made of stainless steel, with a smooth inner wall to reduce powder adhesion.
Size and angle: The diameter, height, and cone angle of the funnel outlet have been optimized to ensure that the powder passes through at a stable flow rate, avoiding blockage or splashing.
Vibration Assistance: Some models are equipped with micro vibrators that promote powder flow through low-frequency vibration, especially suitable for powders that are prone to bridging or have strong adhesion.
2. Measuring cup (receiving container)
Function: Accurately collect and quantify powder volume.
Design points:
Standard volume: The volume of the measuring cup is usually 25cm ³, 50cm ³, or 100cm ³, which needs to be matched with the size of the funnel outlet to ensure that the powder is completely filled and there is no overflow.
Material and surface treatment: Made of stainless steel or high hardness plastic, with polished inner walls to reduce powder residue; Some measuring cups are equipped with scale lines for quick reading.
Anti static design: For powders that are prone to static electricity (such as plastic powder), the measuring cup may use conductive coatings or grounding devices to avoid powder adsorption affecting measurement.
3. Vibration table (optional component)
Function: Eliminate internal voids in the powder through vibration and simulate the actual stacking state.
Design points:
Vibration frequency and amplitude: Adjustable vibration table (such as 50-300Hz) can optimize vibration parameters for different powder characteristics, ensuring that the powder is fully compacted.
Control mode: manual or automatic control, some high-end models integrate vibration time setting function to improve repeatability.
4. Balance (weighing system)
Function: Accurately measure the mass of powder in the measuring cup.
Design points:
Accuracy requirement: Electronic scales with division values of 0.01g or 0.001g are usually selected to meet high-precision measurement requirements.
Windproof Cover: Equipped with a transparent windproof cover to reduce airflow interference, especially suitable for lightweight powders such as carbon powder and medicinal powder.
Data interface: Supports RS-232 or USB interfaces, can be connected to computers or printers, and achieve automatic data recording and analysis.
5. Control and Display System
Function: Integrate operation instructions, display measurement results, and store data.
Design points:
Touch screen interface: intuitive display of operation steps, vibration parameters, and measurement results, supporting multi language switching.
Data storage and export: The built-in memory can store multiple sets of measurement data and supports exporting in Excel format for subsequent analysis.
Calibration function: Provides one click calibration options to ensure long-term stability of the instrument.
6. Auxiliary components
Dust cover: protects the funnel and measuring cup from environmental dust pollution, extending their service life.
Horizontal adjustment feet: Ensure that the instrument is placed steadily and avoid vibration or tilting that may affect the measurement results.
Cleaning tools: equipped with specialized brushes or vacuum cleaners for easy cleaning of residual powder and keeping the equipment clean.