250 DRM
Motorized rockwell hardness testers for simple use
Rockwell Hardness Tester 250DRM is a semi-automatic and simple hardness tester HRC, HRB, HRA and other scales, with test loads from 3 to 250 kgf. It works with Rockwell, Superficial Rockwell and Brinell HBWT hardness tests conforming to all hardness testing standards including ASTM E10 – E18 and ISO 6506 – 6508.

Automatic motorized hardness tester:
250 DRM is a fast and really easy bench hardness testers with high accuracy standards. To perform the test just act on the elevating screw and bring the sample to make contact with the indenter, then push the start button activating preloading and loading in automatic succession; within seconds results appear. Load forces are electronically applied through load cells which eliminates problems associated with dead weight systems on traditional testers. It is not affected by vibration and it doesn’t need to be leveled.
Main control LCD panel in front of the measuring head for setup of test parameters:
Selection of hardness scales, dwell time, conversion data, return stroke, memory and storage of results, statistics, test temperature measure, calibration, system checkup, tolerance range, in-time results average, correction of round surface and automatic evaluation.
206 EX
Semi-automatic hardness tester for simple measurements
206EX is a semi-automatic and simple hardness tester with test loads from 3 to 187,5 kgf. It works with Rockwell, Superficial Rockwell and Brinell HBWT hardness tests conforming to ASTM and ISO hardness testing standards.

Semi-automatic digital hardness tester:
206 EX is a fast and really easy bench hardness testers with high accuracy standards. To perform the test just act on the elevating screw and bring the sample to make contact with the indenter, then pull the lever activating preloading and loading in automatic succession; within seconds results appear. Load forces are applied through two dynamometric load cells which eliminates problems associated with dead weight systems on traditional testers. It is not affected by vibration and it doesn’t need to be leveled.
LCD and key pad board IP 64 protection:
- Simultaneous view of 2 scales, the one of the test and the one chosen from the list of conversion scales. Conversion values for all hardness scales HB, HV, HSD, HK, HRN, HRT, N/mm.
- Precise test settings. Check load applied correctly. Select dwell time. Calibration for direct and indirect method conform to ASTM E 18 ISO 6508. Dynamic results. Simultaneous view of the range of results for statistic. Results average update at the last measure. Statistic CP CPX CX Histogram and number of test corresponding to tollerance values (Lo, Hi, Ok).
- Unique performances. Temperature measure C° usefull for certificate test conform to ASTM E 18 ISO 6508. Depth of indentation in 0,01 micron. Acoustic signal for dwell time and for preload. Output RS 232C or converter to USB. Back light LCD display 128 x 64 pixel.
206 RT
Analogical rockwell hardness testers for simple use
205RT hardness tester, how does it work?
206RT is a fast and really easy bench hardness testers with high accuracy standards. To perform the test just act on the elevating screw and bring the sample to make contact with the indenter, then act on the lever to get result. Direct Rockwell reading value is immediately visible on the clear dial gauge and can be converted in other hardness scale methods using Affri conversion tables. Load forces are applied through two dynamometric load cells which eliminates problems associated with dead weight systems on traditional testers. It is not affected by vibration and it doesn’t need to be leveled.
EXTRA FEATURES
ROCKWELL HARDNESS TESTERS DRM EX RT MODELS

250 DRM
Motorized
Electronic Load Cell
Rockwell & Rockwell Superficial
Depth capacity 190mm
Height capacity 215mm
250 DRMC
As 250 DRM plus Brinell

206 EX2
Digital Semi-automatic
Dynamometric load cell
Rockwell and Rockwell Superficial
Depth Capacity 190mm
Height Capacity 215mm
206 EX2 (R+B)
As 206 EX2 plus Brinell

206 EX
Digital Semi-automatic
Dynamometric load cell
Rockwell and Brinell
Depth Capacity 190mm
Height Capacity 215mm
206 EXS
Rockwell Superficial and Brinell

206 RTS
Analogical Semi-automatic
Dynamometric load cell
Rockwell and Brinell
Depth Capacity 190mm
Height Capacity 215mm
206 RTS
Rockwell Superficial and Brinell
TECHNICAL SPECIFICATIONS
DRM
Standards | EN-ISO 6506 / EN-ISO 6507 / EN-ISO 6508 / EN-ISO 2039 / EN-ISO 868 / ASTM E-18 / ASTM E-10 / ASTM E-103 /ASTM E-92 / ASTM E-2240 / JIS |
Preload | 29.4 - 98.1 N (3 - 10 kgf) |
Force range | Rockwell: 588.4 - 980.7 - 1471 N (60 - 100 - 150 kgf) Superficial Rockwell: 29.42 - 147.1 - 294.2 - 441.3 N (3 - 15 - 30 - 45 kgf) Vickers (Only indentation): 29.42 - 49.03 - 98.07 - 147.1 - 196 - 294.2 - 490.35 - 980.7 N (3 - 5 - 10 - 15 - 20 - 30 - 50 - 100 kgf) Brinell HBWT (Mod. 250 DRMC): 49.03 - 61.29 - 98.07 - 153.2 - 245.2 - 294.2 - 306.5 - 612.9 - 1226 - 1839 N - Optional 2452 N (5 - 6.25 - 10 - 15.6 - 25 - 30 - 31.2 - 62.5 - 125 - 187.5 kgf - Optional 250 kgf) |
Feasible tests | Rockwell: HRC - HRA - HRD - HRB - HRF - HRG - HRL - HRM - HRR Superficial Rockwell: HRN - HRT Vickers (Indentation Only): HV3 - HV5 - HV10 - HV15 - HV 20 - HV30 - HV50 - HV100 Brinell HBWT (Mod. 250 DRMC): HB30 - HB10 - HB5 - HB2.5 MPa (F/D2) |
Load accuracy | Better than 0.1% |
EX2 / EX / EXS / RT / RTS
Standards | EN-ISO 6506 / EN-ISO 6507 / EN-ISO 6508 / EN-ISO 2039 / EN-ISO 868 / ASTM E-18 / ASTM E-10 / ASTM E-103 /ASTM E-92 / ASTM E-2240 / JIS |
Preload | EXS/RTS: 29.4 N (3 kgf) EX/RT: 98.1 N (10 kgf) EX2: 29.4 - 98.1 N (3 -10 kgf) |
Force range | EX/RT: Rockwell: 588.4 - 980.7 - 1471 N (60 - 100 - 150 kgf) Vickers (Indentation only): 98.07 - 980.7 N (10 - 100 kgf) Brinell HBWT (Optional): 98.07 - 612.9 - 1226 - 1839 N (10 - 62.5 - 125 - 187.5 kgf) EXS/RTS: Superficial Rockwell: 147.1 - 294.2 - 441.3 N (15 - 30 - 45 kgf) Vickers (Indentation only): 29.42 - 294.2 N (3 - 30 kgf) Brinell HBWT (Optional): 153.2 - 294.2 - 306.5 N (15.625 - 30 - 31.2 kgf) 206EX2: The 206EX2 is a twin hardness tester able to perform all the feasible tests achievable with EX and EXS. |
Feasible tests | EX/RT: Rockwell: HRC - HRA - HRD - HRB - HRF - HRG - HRL - HRM - HRR Vickers (Indentation only): HV10 - HV100 Brinell HBWT (On request): HB30 - HB10 - HB5 - HB2.5 MPa (F/D2) (The RT tester doesn't perform Brinell direct reading) EXS/RTS: Superficial Rockwell: HRN + HRT Vickers (Indentation only): HV3 - HV30 Brinell HBWT (On request): HB30 - HB10 - HB5 - HB2,5 MPa (F/D2) (The RTS tester doesn't perform Brinell direct reading) 206EX2: The 206EX2 is a twin hardness tester able to perform all the feasible tests achievable with EX and EXS. |
Load accuracy | Better than 0.5% |