The sand and dust test chamber, driven by a fan to push a certain concentration of sand and dust to blow over the surface of the test piece at a certain flow rate, simulates the typical environmental conditions of nature at any time without being limited by time and season, to evaluate the test specimens’ ability to protect against the infiltration effects of dust particles, the ability to defend against abrasive or blocking effects of grit, and the ability to store and operate when exposed to dry sand or a dusty atmosphere.

Structure:

It is composed of working area, blowing dust circulating air duct, vacuum extraction system, dust recovery device, electrical control system, safety protection system and other components. The test has an "accelerated" nature, which can shorten the test period of the test piece.

Technical parameter:

Model	HD-500	HD-800	HD-1000
Volume	512 L	800 L	1000 L
Internal dimension (DWH)	800800800 mm	9009001000 mm	100010001000 mm
Performance
Metal screen standard spacing	50 μm
Spacing between lines	75 μm
Talcum powder amount	2 kg/m3～4 kg/m3
Blowing dust cycle	Cycle control, can control the total test time, and can also program the blowing dust time and stop time for cycle operation.
Material
Shell material	Cold rolled sheet steel, rust-proof and spray plastics on surface
Internal materials	SUS304 stainless steel
Working chamber structure	Funnel-shaped, adjustable vibration period; the dust flies freely, falls and gathers near the suction hole.
Control system
Controller	Programmable controller, color LCD touch screen
Operation mode	Simple operation, convenient setting, blowing dust time can be set, cycle period can be adjusted, time can be adjusted.
Safety device	Over-temperature protection, grounding protection, etc.
Power supply	AC 220V/380V±10%, 50 Hz±0.5Hz