Sinowon SU-400 Universal Dynasonic Hardness Tester

Sinowon SU-400 Universal Dynasonic Hardness Tester

Sinowon SU-400 Portable Universal Dynasonic Hardness Tester

The SU-400 combines both UCI and Leeb hardness testing in one portable hardness tester. It supports both the UCI measurement manual probes 1kg, 2kg, 5kg and 10kg and motorized probes 0.3kg and 1kg as well as the seven dynamic impact devices for Leeb measurement including D, DC, DL, D+15, C, E and G to do rebound measurements.


  • One instrument, two applications - supports both an ultrasonic probe and Leeb impact device.
  • Metal shell - Metallic texture shields electromagnetic interference effectively, improves instrument stability.
  • Color screen display - displays the current measurement values, accumulative measurement values, Max, Min and Average values.
  • Bluetooth transferring - supports wireless Bluetooth print and data transferring
  • Saves up to 1000 measurements
  • Calibration access - saves 20 calibration measurements

Technical Specifications:

Product Name: Dynasonic Hardness Tester
Model: SU-400
Part #: 882-151
Ultrasonic Probe: Standard Delivery: 2kgf Probe
Optional Manual Probes: 1kgf, 5kgf, 10kgf / Motorized Probes: 0.3kgf and 1kgf
Impact Devices: Standard Delivery: D Probe
Optional Probes: DC, DL, D+15, C, G
Hardness Scale: HL, HV, HB, HRC, HRB, HRA, HS
Measuring Range: HV:50 - 1599; HRC:20 - 68; HB:76 - 650; HRB:41 - 105; HLD:170 - 960
Measuring Accuracy: HV:±3%HV; HRC:±1.5HRC; HB:±3%HB; HL:±8HL
Resolution: 0.1HR, 1HV, 1HB, 1HLD, 0.1HS
Result Display: Measurement value, Max, Min, Average, Single Mode, Batch Mode
Data Storage: 1000 group test results and 20 group calibration sets
Data Transfer: Bluetooth
Continous Working Period: 10 hrs (turn off the backlight)
Operating Environment: Temperature:14°F - 122°F / -10°C - 50°C; Humidity:30 - 80%
Operating Voltage: 4.2V
Charge Mode: USB
Dimensions: 6.3" x 3.15" x 1.2" / 160 x 80 x 31 mm
Weight: ≤500g (probe not included)

The SU-400 Kit Includes:

  • The SU-400 Instrument
  • 2Kg Manual Probe HP-2K
  • Type D Impact Device
  • Rockwell Hardness Block
  • Leeb Hardness Block
  • Probe Cable
  • Accessories Box
  • USB Cable
  • Operation Manual

Optional Accessories:

  • 1 Kg Manual Probe
  • 5 Kg Manual Probe
  • 10 Kg Manual Probe
  • 0.3 Kg Motorized Probe
  • 1 Kg Motorized Probe
  • Rockweel Hardness Block HRC
  • Vickers Hardness Block HV
  • Deep Hole Probe Cap
  • Small Cylinder Support Ring
  • Big Cylinder Support Ring
  • Plan Support Ring
  • Mini-Printer
  • Testing Stand
  • Handy Silicone Shell

Note: Due to recent increases in tariffs on imports from China, we are now required to collect a 10%* fee to cover additional duties and taxes.

*subject to change

Product Literature

Description Part # Saved Price Select Option Add to
SU-400 Portable Universal Dynasonic Hardness Tester HT-SW-SU400 Request Pricing