Portable Leeb Hardness Tester
dyna ROCK-II
Fast and easy hardness testing- Measuring method according to DIN 50156, DIN EN ISO 16859 and ASTM A956
- Robust metal (aluminium) casing
- Large colour display
- Embedded Li-ion battery
- 12 groups of materials
- Extensive storage and statistical functions
- USB interface and PC software
Fast and easy hardness testing

Measuring method | According to DIN EN ISO 16859 and ASTM A956 |
Test materials | 12 material groups |
Specimen requirement | Minimum weight of test specimen on stable support: 2 kg |
Hardness scale | HRC, HB, HV, HRB, HL, HS and tensile strength |
Display | Colour LCD 320 x 240 pixels |
Statistics | Average value, standard deviation, minimum, maximum |
Data memory | 500,000 data records with date, time, GOOD/BAD rating and impact direction |
Interface | USB |
Measuring method | According to DIN EN ISO 16859 and ASTM A956 |
Test materials | 12 material groups |
Specimen requirement | Minimum weight of test specimen on stable support: 2 kg |
Hardness scale | HRC, HB, HV, HRB, HL, HS and tensile strength |
Display | Colour LCD 320 x 240 pixels |
Statistics | Average value, standard deviation, minimum, maximum |
Data memory | 500,000 data records with date, time, GOOD/BAD rating and impact direction |
Interface | USB |
Data transfer: | Direct protocol printout with mini thermal printer |

Portable Leeb Hardness Tester
THL 210
Features: -
- LCD display of 128×64 matrix with back-light, showing all functions and parameters.
- Converts to all common hardness scales (HV, HB, HRC, HRB, HRA, HS).
- English displaying and easy and convenient menu operation.
- Powerful PC Software available and USB 1.0 interface and USB with Protective Membrane.
- 7 types of Impact Device optional, which don't need to be recalibrated when changing them.
- Memory of 600 groups data (impact times:32~1).
- Lower limit setting and sound alarm. Material of “cast steel” is added; HB values can be read out directly when D/DC impact device is used to measure “cast steel” work piece.
- Printer be separated from main unit and copies of testing results can be printed as required.
- Normal battery AAA and big power store while USB connected and charging controlling circuit.
- In built function of Software Calibration.
- Standard according including: national standard: GB/T 17394.1-2014; GB/T1172-1999
- EU standard: EN ISO 16859-2016
- ASTM standard: ASTM A956(2012)
Technical Specifications: –
Features | Description |
Hardness Scale | HL, HB, HRB, HRC, HRA, HV, HS |
Memory | 48~600 groups (impact times: 32~1) |
Measuring range | HLD (170~960) |
Accuracy | ±6HLD (760±30HLD) error of displayed value |
Standard Impact Device | D |
Optional Impact Devices | DC/D+15/G/C/DL |
Min. Radius of Workpiece | Rmin = 50mm (with special support ring Rmin= 10mm) |
Min. Workpiece weight | 2~5kg on stable support |
0.05~2kg with compact coupling | |
Min. Workpiece thickness | 5mm (Impact Devices D/DC/DL/D+15) |
1mm (Impact Device C) | |
10mm (Impact Device G) | |
Min. thickness of hardened surface | 0.8mm |
Power | Normal AA Battery |
Continuous Working time | approx. 100 h (no back light off) |
Operating temperature | 0~40℃ |
Relative humidity | ≤90% |
Overall dimensions | 125*67*31mm (main unit) |
Weight | 300g Main Unit |
Standard Kit Includes: –
- Main Unit (THL 210)
- Impact Device D type
- Leeb Test Block for D Impact Device
- Cleaning Brush
- Small Supporting Ring
- Communication Cable
- Data Pro Software
- User Manual
- Carrying Case