28KHz/40KHz Are Optional. Customized Through-Type Electronic
Weighing Sensors With Ultrasonic Cleaning + Spray Washing + Hot Air
Drying.
Three-process integrated design creates a full closed-loop for the
cleaning of electronic load cells. Ultrasonic rough cleaning: Efficiently remove micron-level dirt
Dual-frequency collaborative technology: The 28kHz low-frequency
ultrasonic (with a power of 30kW) works in tandem with the
vibration of a mesh belt with a 50μm aperture, generating a
high-intensity cavitation effect. This rapidly breaks down solid
contaminants such as welding slag and grease at the connections of
the sensor housing and cables. The 40kHz high-frequency mode (with
a power of 20kW) targets 0.1μm-level dust particles on the surface
of the strain gauge, achieving nanometer-level cleanliness (meeting
the ISO 14644-1 Class 8 standard).
Customized cleaning tank: The tank, made of 316L stainless steel
(with a wall thickness of 6mm), is equipped with built-in flow
deflectors, maintaining the cleaning liquid flow rate at a stable
0.8m/s. Combined with the 15° inclined mesh belt design, it ensures
360° all-round scrubbing of the sensors during transportation. The
cleaning time per batch is 40% shorter compared to traditional
single machines. High-pressure spray precision cleaning: Completely remove residual
stains
Multi-stage filtration spray system: It features a 5μm precision
pre-filter and a 0.2μm ultrafiltration membrane at the rear. The
turbidity of the recycled water is less than 5 NTU. A matrix of
fan-shaped nozzles (with a pressure of 8 - 12 bar) is used for
directional flushing of concealed areas such as the sensor outlet
holes and sealing rubber rings. The measured removal rate of
residual cleaning agents reaches 99.7%.
Intelligent water-saving design: The spray water can be recycled
back to the ultrasonic tank. With real-time monitoring by a
conductivity sensor, it automatically switches to pure water
supplementation when the water quality exceeds the standard. This
design saves 60% more water compared to traditional spraying
processes. Hot air gradient drying: Efficient drying with zero water stains
Three-stage temperature-controlled tunnel: The first stage preheats
at 60°C (to remove surface free water), the middle stage dries with
strong air at 80°C (with an airspeed of 15m/s, targeting water
accumulation in grooves), and the final stage sets the shape at a
constant temperature of 50°C (to prevent condensation due to
temperature differences). Coupled with the variable frequency speed
regulation of the mesh belt (0.5 - 3m/min), it ensures that the
moisture content of sensors of different sizes (up to a maximum
size of 300×200×100mm) is ≤0.1%.
Air purification system: It is equipped with a medium-efficiency
filter and an activated carbon adsorption device. The cleanliness
of the supplied air reaches Class 10,000, preventing secondary
pollution during the drying process.
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