Hardness tester for Rockwell, Brinell, Vickers and more
LD750 / LD250
Universal hardness testers LD250 and LD750
All-in-one for automatic use
Universal hardness testers LD250 and LD750 include all hardness testing methods: Rockwell, Superficial Rockwell, Brinell, Brinell HBT, and Vickers. Hardness measurements on every metal and alloys conforming to ASTM and DIN EN ISO international standards.
ONE TOUCH MEASUREMENTS
Universal Hardness Tester with AFFRI System inside!
AFFRI System hardness testers achieve the highest level of load accuracy and measurement resolution available for hardness tests.
Thanks to the AFFRI System, the real indentation measurement is guaranteed without any external interference in any condition.
What makes our hardness tester so easy to use?
Just push the start button and the head moves down performing the hardness test cycle in automatic succession without breaching a phase:
- Contact with the specimen
- Active sliding clamping
- Preloading and loading
- Switching to optic lens
- Autofocus by image brightness scanning
- Measure through camera
- Return stroke at programmed distance
The entire test cycle is automatically completed and the result appears on a large display.
SPECIMEN AUTO-CONTACT AND CLAMPING
Fully motorized adjustable testing vertical capacity including automatic contact with test surface and clamping from every distance with single start input. The activation of the test cycle is automatic, it starts when the head makes contact with the specimen which is automatically recognized at any position within the vertical stroke.
Our universal hardness tester is a robust, reliable system, designed to function even in hostile environments. Heavy and bulky samples can be easily placed using a forklift or overhead-traveling crane.
AUTO-COMPENSATION OF ALL DEFLECTIONS
When testing unstable samples or deflecting parts, the AFFRI System will follow the sample without losing contact thanks to its stroke for indenter and clamping hood.
Load forces are applied through load cells and controlled in “Closed Loop” with a frequency of 1 khz, assuring perfect linearity in every range. Results are not affected by any structural deflection, misalignment or vibration.
Accurate measurements on the first test, even in extreme conditions, eliminate the need for repeated tests. The R&R data is at the top of its class.
THE EXCLUSIVE MILLING TOOL
Universal hardness testers model LD250/750 can be equipped with a sample preparation system which is directly installed on the head of the instrument.
THE HARDNESS SOFTWARE
The preinstalled software controls the whole instrument avoiding setting errors or operators mistakes:
- Touchscreen gloves sensitive
- User-friendly software designed inhouse
- Color highlighted results (low/ok/high)
- Live statistics and graph
- Programs of test settings
- Results archives
- Export results to PDF, TXT, CSV, DOD, XLS, and more
- Data enter via code bar scanning
- Outputs via RS232, USB, and Ethernet
- Data exchange with management system MES
Ready for INDUSTRY 4.0
THE NEXT AUTOMATION UPGRADE
EVERYTHING IS AUTOMATED, FREEING USERS FOR OTHER TASKS:
Auto focusing, automatic measuring and reporting, allows this system to function unattended for hours without interruption, saving time and money, thus increasing output and productivity.
WATCH THE VIDEO!
MAIN FEATURES
MOTORIZED TURRET
Automatic two position turret with one indenter and one objective, easily changeable with manual screwing. Auto-rotating, auto-tool-switching and auto-centering for a completely automatic hardness test cycle. (On request 8 position)
CLAMPING SYSTEM
Secure contact with the specimen is always maintained, even in the unlikely event of any specimen movement during the operation cycle. The clamping system assures complete stability of any test piece throughout the test cycle, even if it’s oiled, rusty or dirty.
HARD BASE
The wide work table base is capable of bearing masses over 3000 kg and special fixtures or anvils. Hardness measurements on bulky and irregular test pieces which cannot be easily reached by the regular bench hardness testers.
AUTOFOCUS
Automatic focus adjustment for each optic with precise positioning at any magnification by mean of real image scanning brightness, at continuous step for infinite accuracy. This system assures high reading standards, reproducible focusing quotes and reduces reading time. Hardness results are not affected by subjectivity.
AUTO-READING THROUGH CAMERA
From perfectly polished to rough & etched samples, the software automatically measure indents on any sample surface. Automatic light regulation on dark, opaque or polished samples. The software controls and adjusts the light and contrast to find the right combination and measure the indent.
PROTECTED DIAMOND INDENTER
All Affri diamond indenters have a life-span longer tanks to the special protective cup. This indenter retracts and moves down just after the test piece is clamped thereby minimizing the risk to accidental shock.
THE ACCESSORIES
TECHNICAL SPECIFICATIONS
| Standards | EN-ISO 6506-2 / EN-ISO 6507-2 / EN-ISO 6508-2 / EN-ISO 2039 / ISO 868 / ASTM-E10 / ASTM-E18 / ASTM-E103 / ASTM 2240 / ASTM-E384 / JIS |
| Indenter stroke | Motorized 30 mm / 1.2" with automatic contact |
| Height Capacity | LD750: Motorized 720mm / 28″ (more on request) LD250: Motorized 390mm / 15″ (more on request) |
| Depth Capacity | LD750: 265 mm / 10.5” (more on request) LD250: 190 mm / 7.5” (more on request) |
| Working table: | LD750: 480 x 675 mm / 19 x 26 “ (more on request) LD250: 330 x 390 mm / 13 x 15.5 “ (more on request) |
| Preload | 29.4 - 98.1 N (3 - 10 kgf) |
| Force range | ***Depending on the models***: Rockwell: 588.4 - 980.7 - 1471 N (60 - 100 - 150 kgf) Superficial Rockwell: 147.1 - 294.2 - 441.3 N (15 - 30 - 45 kgf) Brinell: 9.807 - 24.52 - 49.03 - 61.29 - 98.07 - 153.2 - 245.2 - 294.2 - 306.5 - 612.9 - 1226 - 1839 - 2452 - 4903 - 7355 - 9870 - 14710 - 29421N (1 - 2.5 - 5 - 6.25 - 10 - 15.625 - 25 - 30 - 31.2 - 62.5 - 125 - 187.5 - 250 - 500 - 750 - 1000 - 1500 - 3000kgf) Vickers - Knoop: 9.807 - 29.42 - 49.03 - 98.07 - 147.1 - 196 - 294.2 - 490.35 - 980.7 N (1 - 3 - 5 - 10 - 15 - 20 - 30 - 50 - 100 kgf) Optional tests: 49 - 132 - 358 - 961 N (For plastics and rubbers as per EN-ISO 2039 std) Shore A - D |
| Feasible tests | ***Depending on the models***: Rockwell: HRA - HRB - HRC - HRD - HRE - HRF - HRG - HRH - HRK - HRL - HRM - HRP - HRR - HRS - HRV Superficiale Rockwell: HR15N/T/S/W/X/Y - HR30N/T/S/W/X/Y - HR45N/T/S/W/X/Y Brinell HBW: HBW 1/1 – HBW 1/1.25 – HBW 1/2.5 – HBW 1/5 – HBW 1/30 – HBW 2.5/6.25 – HBW 2.5/7.8125 - HBW 2.5/15.625 – HBW 2.5/31.25 – HBW 2.5/62.5 – HBW 2.5/187.5 – HBW 5/25 – HBW 5/31.25 – HBW 5/62.5 – HBW 5/125 – HBW 5/250 – HBW 5/750 – HBW 10/100 – HBW 10/125 – HBW 10/250 – HBW 10/500 – HBW 10/1000 – HBW 10/1500 – HBW 10/3000 Brinell HBWT: 1/30 - 2.5/15.6 - 2.5/31.5 - 5/125(3) (Aluminum and alloys) - 2.5/62.5(2) (Aluminum and alloys) - 2.5/187.5(6) (Aluminum and alloys) - 2.5/187.5(5) (Carbon steel) - 2.5/187.5(1) (Cast iron) - 5/125 - 5/250 - 5/750 - 10/500 - 10/1000 - 10/1500 - 10/3000 Vickers - Knoop: HV1 - HV3 - HV5 - HV10 - HV15 - HV20 - HV30 - HV50 - HV100 Shore A - D |
| Load accuracy | Better than 0.1% |
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