AFFRI Universal Hardness Tester LD 250

Details


ONE INPUT FOR THE ENTIRE TEST CYCLE The hardness tester’s head moves down until contact is made, clamps the piece, applies the force and make the indentation. The software will move to the camera view mode where the indent is automatically measured.		CLOSED LOOP TECHNOLOGY (PAT. AFFRI) 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.

MOTORIZED TESTING HEAD Automatic movements with automatic stop when contact is made. Up to 300 mm of motorized vertical stroke. The approach of the head to the peace and not the opposite allows more accurate, scable and safe measurements.		LARGE BASE Supports masses beyond 2000 kg and special fixtures or anviling. Hardness measurements on bulky and irregular test pieces which cannot be easily reached by the regular bench hardness testers.

CLAMPING SYSTEM (PAT. AFFRI) 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.		MOTORIZED TURRET One slot for an indenter and one slot for an objective. Auto-rotating and auto-tool-switching for a complete automatic measurement cycle.
SOFTWARE The preinstalled software controls the whole instrument avoiding setting errors or operators mistakes: Powerful software for test cycle managing and automatic indent reading. Wide settings parameters for measurement setup, image adjustments, statistics and data storage.

TECHNICAL FEATURE

MODEL	LD 250	LD 750
Standards	EN-ISO 6506 / EN-ISO 6507 / EN-ISO 6508 / EN-ISO 2039 / EN-ISO 7619 / EN-ISO 868 / ASTM E-103 / ASTM E-18 / ASTM E-10 / ASTM E-384
XY Table	330 x 390 mm	480 x 670 mm
Vertical head stroke	390 mm Motorized	720 mm Motorized
Indenter and clamping hood stroke	0/30 mm Motorized	0/50 mm Motorized
Depth capacity	190 mm	265 mm
Reading	Focus: automatic and manual - Reading: automatic and manual
Preload	29.4 - 98.1 N (3 - 10 kgf)
Test loads	LD250 from 1 to 250 kgf (From 9,807 to 2452 N), LD750 from 3 to 3000 kgf (From 29.4 to 29421 N) Vickers - Knoop: 9.807 - 19.60 - 29.42 - 49.03 - 98.07 - 196 - 294.2 - 490.35 - 980.7 N (1 - 2 - 3 - 5 - 10 - 20 - 30 - 50 - 100 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 - 29421 N) (1 - 2.5 - 5 - 6.25 - 10 - 15.6 - 25 - 30 - 31.2 - 62.5 - 125 - 187.5 kgf - 250 - 500 - 750 - 1000 - 3000 kgf) Rockwell: 588.4 - 980.7 - 1471 N (60 - 100 - 150 kgf) Superficial Rockwell: 147.1 - 294.2 - 441.3 N (15 - 30 - 45 kgf)
Feasible tests	Rockwell: HRC - HRA - HRD - HRB - HRF - HRG - HRL - HRM - HRR Superficial Rockwell: HRN - HRT Brinell HBW (Depending on the models): HBW1/30 - HBW2.5/15.625 - HBW2.5/31.25 - HBW2.5/62.5 - HBW2.5/187.5 - HBW5/25 - HRW5/62.5 - HBW5/125 - HBW5/250 - HBW5/750 - HBW10/100 - HBW10/250 - HBW10/500 - HBW10/1000 - HBW10/1500 - HBW10/3000 Brinell HBWT (Depending on the models): HBT 2.5/62.5 - HBT 2.5/187.5 - HBT 5/125 - HBWT5/250 - HBWT5/750 - HBWT10/500 - HBWT10/1000 - HBWT10/1500 - HBWT10/3000 Vickers (Depending on the models): HV1 - HV2 - HV3 - HV5 - HV10 - HV20 - HV30 - HV50 - HV100
Load accuracy	Better than 0.05 %