SU-400M Portable Universal Dynasonic Hardness Tester

Model: SU-400M
Accuracy: ±3%HV ±1.5HRC ±3%HB ±8HL
Hardness Scales: HV, HRC, HRA, HRB, HB
Resolution: 0.1HR, 1HV, 1HB, 1HLD, 0.1HS

Brief Introduction:

SU-400 Dynasonic Hardness Tester is a universal portable durometer with twin—testing-method. It applies twin-method about state ultrasonic contact independence: UCIand dynamic rebound: Leebto make hardness testing in one instrument, it solves the dilemma that Leeb method can not test the hardness of plating and coating(in UCI), and UCI method can not test the coarse crystal material in the casting industry(in Leeb).

SU-400 can not only work with the UCI motorized and manual probes, but also work with the Leeb impact probe, it is universal to test the hardness of material with the fine crystal structure or coarse crystal structure in the metal industry.

SU-400 UCI probe system is perfect to measure hardness testing about the coating and plating, which can measure the hardness of chrome, copper plating, carbonized layer and Nitrating layer effectively.

SU-400 dynamic Leeb probe system is suitable to measure hardness of coarse material, such as, casting and forging.

SU-400 is a NDT durometer due to the contact indention is too small to observe, it is one of the excellent solution to test hardness of finished products, such as, the mold, gear, shaft, rod, screw, rails, etc.

SU-400 conforms the standard ASTM A1038-2005, DIN standard DIN50159-1-2008 and China National standard GB/T 34205-2017, GB/T 17394.


(1) One instrument two applications—Support ultrasonic probe and Leeb impact device.
(2) Metal shell—Metallic texture, shield electromagnetic interference effectively, improve instrument stability.
(3) Color screen display—Display the current measurement value, accumulative measurement value, Max, Min and Ave value.
(4) Bluetooth transferring—Support wireless Bluetooth print and data transferring.
(5) Mass storage—Save 1000 groups data.
(6) Calibration access—Save 20 groups calibration data without doing calibration for the same material over and over.

Technical Specifications:

Product name Dynasonic Hardness Tester
Model SU-400M
Code# #882-151M
Ultrasonic Probe Manual Probe HP-1K、HP-2K、HP-5K、HP-10K and Motorized ProbeMP-300、MP-500、MP-800、MP-1000
Impact Devices Standard delivery:D(optional DC,DL,D+15,C, G)
Hardness Scale HL、 HV、HB、HRC、HRB、HRA、HS, etc.
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, Ave, single mode, batch mode, etc.
Data Storage 1000 group test results and 20 group calibration data
Data Transfer Bluetooth
Continuous Working Period 10h (turn off the back light)
Operating Environment Temperature: -10℃~50℃; Humidity: 30%~80%
Operating Voltage 4.2V
Charge Mode USB
Dimension 160x80x31mm
Weight ≤500g(probe not included)

Standard Delivery:

Accessories Code # Accessories Code #
Instrument 882-151M 10N Motorized Probe 882-251
Type D Impact Device 882-410 Probe Cable  882-801
Rockwell Hardness Block (58~65)HRC 882-641 Leeb Hardness Block (750~830)HLD 882-630
USB Charger with Cable 882-851 Toolbox 882-901
Operation Manual SU-400M Warranty Card SU-400M
Qualified Certificate SU-400M Packing List SU-400M

Optional Accessories:

Accessories Code # Accessories Code #
MU-100 Testing Stand 882-301 Plan Support Ring 882-511
MU-200 Testing Stand 882-201 Small Cylinder Support Ring 882-521
MU-300 Testing Stand 882-101 Big Cylinder Support Ring 882-531
MU-400 Testing Stand 882-401 V-shape Support Ring 882-551
Ultrasonic Hardness Block(28~35)HRC 882-611 Probe Silicone Cap 882-711
Ultrasonic Hardness Block (38~45)HRC 882-621 Lengthened Probe Silicone Cap 882-721
Ultrasonic Hardness Block (48~55)HRC 882-631 Mini Printer 882-831
Ultrasonic Hardness Block (300-800)HV1 882-651 10N Manual Probe 882-311
Ultrasonic Hardness Block (300-800)HV5 882-661 50N Manual Probe 882-331
Ultrasonic Hardness Block (300-800)HV10 882-671 98N Manual Probe 882-341
8N Motorized Probe 882-241 3N Motorized Probe 882-211
20N Manual Probe 882-321 5N Motorized Probe 882-231
Bluetooth Receiver 882-710 SPC Software 882-381
Bluetooth Printer 882-361 Probe Silicone Case 882-861

Request For Quotation



Linkman *

Mobile *




Inquiry message*

Budget Plan