Sinowon SU-300M Motorized Hardness Tester

Sinowon SU-300M Motorized Hardness Tester

Sinowon SU-300M Motorized Ultrasonic Hardness Tester

The SU-300M uses the ultrasonic resistance method to do comparison measuring. The SU-300M employs most mainstream characteristics of ultrasonic testers such as microscopic indentation, quick measurements and great accuracy but also has adopted a streamlined design and high definition LCD screen making it more user friendly. It meets the technical requirements of ASTM A1038-2005, DIN50159-1-2008 and JB/T9377-2010.


  • Great Accuracy: ±3%HV, ±1.5HR, ±3%HB
  • Microscopic Indentation: Only a high power microscope can observe the indentations.
  • Quick Measurements: Results in 2 seconds
  • Large LCD Display: Displays measurement results, maximum, minimum, average and deviation.
  • User Friendly: Needs minimal training
  • Warranty: 2 year warranty for instrument (does not include the probe)
  • Storage: Saves 1000 group measurements
  • Simple Calibration: Saves 20 calibration sets for better efficiency

Wide Range of Application, Powerful Function:

The SU-300M can measure hardness of the vast majority of ferrous and non-ferrous metals and alloys in industrial production. By utilizing the comparison method, it can measure the material hardness of HRA, HRB, HRC, HV, HBW, HS and steel hardness at the production line and laboratory.

By adding a manual probe, HP-1K, HP-2K, HP-5K or HP-10K, the SU-300M can measure rough samples as well as coatings.



Amazing Design, Exquisite Workmanship



Product Name: Motorized Ultrasonic Hardness Tester
Model: SU-300M
Part Number: 882-141M
Optional Probes: Manual Probes: 10N, 20N, 49N, 98N
Motorized Probes: 3N, 5N, 8N, 10N
Measuring Range: HBS:100-500; HV:100-1500; HRC:20-68; HRB:55-100; HRA:37-85; Mpa:255-2180N/mm
Measuring Accuracy: Scales <250HV 250-500HV 500-800HV >800HV
HV0.1 6 7 8 9
HV0.3 6 7 8 9
HV0.8 5 5 6 7
HV1 5 5 6 7
HV5 5 5 6 5
HV10 5 5 5 5
Hardness Scales: Vickers (HV); Rockwell C (HRC); Rockwell A (HRA); Rockwell B (HRB); Brinell (HB)
LCD: Color Screen
Data Display: LCD Backlight, Adjustable
Languages: Chinese, English, German, Portugese, Turkish
Data Output: RS232 Hyper Terminal / Bluetooth Printer
Print: Bluetooth
Data Storage: Saves 1000 groups of measuring data and 20 calibration sets
Word Input: Letters and numerals
Working Environment: Temperature: 14°F - 122°F / -10°C - 50°C; Humidity: 30 - 80%
Battery Voltage: Rechargeable lithium battery; Voltage: 4.2V, 4800mAh
Recharger Voltage: AC 220V / 50Hz, 110V / 60Hz
Dimensions: Main Unit: 6.3" x 3.15" x 1.2" / 160 x 80 x 30 mm (L x W x D)
Manual Probe: Φ0.9" x 6" / 22 x 153 mm
Weight (no probe): 1.1 lbs. / 0.5 kg
Shipping Dimensions: 12.6" x 17" x 6" / 320 x 430 x 155 mm (L x W x D)
Shipping Weight: 9.5 lbs. / 4.3 kg standard delivery

The SU-300M Kit Includes:

  • SU-300M Instrument
  • 10N Motorized Probe
  • Standard Rockwell Block
  • USB Charger
  • Probe Cable
  • COM Cable
  • Screw
  • Anti-Vibration Case
  • Packing List
  • Qualification Certificate
  • Operation Manual
  • Warranty

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-300M Motorized Ultrasonic Hardness Tester HT-SW-SU-300M Request Pricing