Product Description
Item | Specification |
Internal dimension | 800W*800D*800Hmm |
External dimension | 1300W*1000D*1700Hmm |
Test sample | Size W20cm- L30cm-D15cm, weight 0.5kg |
Chamber material | SUS304 Stainless steel |
Specifications of square mesh sieve | Mesh hole 75um, mesh metal wire diameter 50um |
Talcum powder amount | 2kg/ m |
Airflow speed | No more than 2m/s |
Door | Left open door with tempered glass door |
Controller | PLC Touch Screen controller, programmable to set as below cycle: a. Blowing dust time (Stop/Blow) m/s b. Cycle time: can be adjusted c. Pre-set test time: 0s ~99m99s |
Vacuum system | Pressure gauge, air filter, Pressure regulating FRL, connecting pipe, Vacuum pump |
Vacuum pump capacity | 60-600 L/H |
Fan | Centrifugal fan |
Safety protection devices | Meter over-temperature function, Phase shortage protection, Power short-circuit protection |
Vertical circulating airflow sand and dust box is a kind of experimental equipment that simulates the natural wind and sand environment, which is mainly used to test the durability and protection performance of materials, coatings, electronic devices, etc. under the action of wind and sand. The following are its key information and points:
1. Working Principle
Vertical Airflow Circulation: The top and bottom high-efficiency fans form an up-and-down bidirectional airflow circulation to simulate the dynamic distribution of real wind and sand.
Sand and Dust Control: Built-in vibrating screening system or dosing device ensures that sand and dust are evenly suspended and maintained at a set concentration (e.g. ISO 9227 standard).
Temperature and humidity control: optional heating/cooling module to control the temperature and humidity of the experimental environment (applicable to high cold/desert extreme conditions).
2. Core application areas
Automotive industry: testing the corrosion resistance of paint, seals and sensors in wind and sand.
Building materials: Evaluate the resistance of exterior paints and glass curtain walls to abrasion by wind and sand.
Electronic products: Verify the dustproof sealing level (IP protection) of outdoor equipment (e.g. drones, communication base stations).
Military equipment: simulate the erosive effects of wind and sand on equipment in the battlefield.
3. Suggestions for equipment selection
Select by test object:
Small samples: desktop or compact units.
Large components: industrial grade floor standing chamber.
By Standards Compliance:
Compliance with ISO 9227-2 (dry sand method), GB/T 2423.37 (Chinese national standard), etc.
Additional Functional Requirements:
Equipped with camera to observe the test effect in real time.
Data acquisition system (record wind speed, temperature and humidity curve).
4. Precautions for use
Safe operation:
Check the sealing before the experiment to avoid sand and dust leakage.
Regularly clean the filter and fan dust accumulation.
Sample Preparation:
Samples need to be fixed firmly to avoid displacement or collision.
Initial state record (e.g. quality, surface morphology).
Maintenance cycle:
Weekly cleaning of internal residual grit.
Calibrate the wind speed sensor and temperature and humidity meter every six months.
5. Typical Problem Solving
Dust settles too quickly: Check airflow stability or add agitation device.
Unstable temperature control: Make sure the heating/cooling power matches the chamber volume.
Equipment rattling: Check fan bearing lubrication or foreign matter blockage.