The HY350 Digital Ultrasonic Flaw Detector is a professional non-destructive testing instrument for precise flaw detection, weld inspection, and thickness measurement across industrial applications.
Applications
Bearing components and automotive parts: Bearing outer rings, bearing inner rings, gear blanks, ring-shaped metal parts, automotive components
Metal pipes and tubes production lines: Online and offline non-destructive testing of copper pipes, steel pipes, stainless steel pipes, welded pipes, aluminum-plastic pipes, steel wire, double-layer pipes, copper-clad aluminum, copper-clad steel, aluminum wire, metal bar materials
Oil industry components: Non-destructive testing of oil casing, sucker rods, hollow shafts
HVAC and automotive tubing: Detection of condenser tubes, air conditioner tubes, automotive oil pipes
General metal materials: Suitable for non-destructive testing of various metal pipes, bars, and wire materials
Scene Pictures


Flaw Display

Full Chinese touch keyboard, intuitive and easy to remember, with complete Chinese prompts and graphic display throughout operation. Simple training enables proficient operation.
Automatic performance testing of instrument and probe, automated instrument calibration, capable of measuring thickness and material sound velocity.
Ten independent flaw detection channels (electronic switching).
Custom flaw detection procedures can be generated according to actual workpieces (such as welds, forgings, castings, pipes, plates, axles, wheels, small diameter pipes, etc.). Field flaw detection requires no test blocks.
DAC, AVG, and decibel DAC curves automatically generated, unlimited sampling points, compensation and correction available, curves automatically float with gain and automatically extend with sound path.
Real-time display of defect echo (horizontal, vertical, distance, dB equivalent value), weld cross-section display.
Entry gate, loss gate, DAC sound alarm, gate position, gate width and gate height are freely adjustable.
Peak memory and envelope function, making it easier to find higher waveforms.
500 flaw detection data instrument storage.
New low-reflection 5.5" EL flat display screen (color TFT display), strong electromagnetic interference resistance, high contrast, high resolution.
Low voltage sound alarm, automatic shutdown protection.
Lightweight (only 1.6Kg with battery), compact size (dimensions 260×140×55mm), easy to use and carry.
Imported NiMH battery, automatic protection charging (18VDC, 220VAC), continuous operation for more than 6 hours.
Operating temperature range: -20℃~50℃ normal operation.
Gain margin:110dB
Frequency bandwidth:0.4~20.0MHz
Detection range:0~6000.0mm
Surplus sensitivity:>56dB (depth 200mmΦ2flat-bottom hole)
Resolution ratio:>40dB
Dynamic range:>32dB
Horizontal linearity:<0.1%
Vertical linearity:<3%
Noise level:<10%
Operating mode:single probe, double crystal probe, penetrating probe
Pulse generator:variable pulse generator
Damping:50/100/400Ωautomatch
Attenuator accuracy: < ±1dB/12dB
Digital inhibition:(0 ~ 80)%, no affecting of linear and gain
Gate: advancing wave door, wave loss door; single gate read, double-gate read
Alarm: buzzing alarm, LED alarm
Environment temperature:(-10~50)℃
Relative humidity:(20~95)%RH
Specification:HY350/360
Operating temperature: -10 ~ 50℃
Storage temperature: -20℃ ~ +60℃
Relative humidity:less than 85%
Working voltage: DC24V