SERIE LD

Service & Calibration Universal SERIE LD

Universal hardness testers for Vickers, Rockwell, Superficial Rockwell and Brinell hardness test methods in compliance with ASTM and ISO hardness standards. LD 250 and LD750 are top level bench hardness testers for fully automatic test cycles including indentation autoreading through the high resolution camera. Entirely motorized and equipped with an automatic turret with indenters and magnification lenses. The instrument allows for hardness measuring in different hardness scales with just one tester, without the need of several testers in own laboratory. Load forces are applied through load cells and electronically controlled in Closed Loop (Pat. Affri). Wide touchscreen for easy test planning and a clear view of results. Statistics and charts are automatically generated and can be stored with test sessions in the large archive. User friendly interface with conversion tables and round correction values for tests on covex cylindrical surfaces or various diameters. Hardness tests on all metals: iron, steel, tempered steel, cast iron, brass, aluminum, copper and metal alloys. Heat treatment, hardening, nitriding, cementation and hardfacing. Knoop test on ceramic and glass materials.

KEY-FACTS

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)
Rockwell ISO 6508 / ASTM E-18: HRA - HRB - HRC - HRD - HRF - HRG - HRL - HRM - HRR / HRN - HRT
Brinell HBW e HBWT ISO 6506 / ASTM E-10: 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 HBWT2.5/62.5 - HBWT2.5/187.5 - HBWT5/125 - HBWT5/250 - HBWT5/750 - HBWT10/500 - HBWT10/1000 - HBWT10/1500 - HBWT10/3000
Vickers ISO 6507 / ASTM E-384 - Knoop ISO 4545: HV1 - HV2 - HV3 - HV5 - HV10 - HV20 - HV30 - HV50 - HV100

Technical Features

	LD 250
Normen	DIN EN-ISO 6506 / DIN EN-ISO 6507 / DIN EN-ISO 6508 / DIN EN-ISO 2039 / DIN EN-ISO 7619 / DIN EN-ISO 868 / ASTM E-103 / ASTM E-18 / ASTM E-10 / ASTM E-384
XY-Prüftisch	330 x 390 mm
Messkopf Verfahrweg	390 mm motorisiert
Eindingkörper und Spannkappe	0/30 mm motorisiert
Ausladung	190 mm
Auswertung	Fokusierung: automatisch und manuell – Auswertung: automatisch und manuell
Vorlast	29.4 – 98.1 N (3 – 10 kg)
Prüflasten	Die LD Serie umfasst Prüflasten von 0,1kg bis zu 3000 kg und kann je nach Kundenwunsch angepasst werden. Die Standard Version beinhaltet folgende Prüflasten: 1 to 250 kg (9.807 to 2452 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 kg)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 kg)Rockwell: 588.4 – 980.7 – 1471 N (60 – 100 – 150 kg)Super-Rockwell: 147.1 – 294.2 – 441.3 N (15 – 30 – 45 kg)
Prüfverfahren	Rockwell: HRC – HRA – HRD – HRB – HRF – HRG – HRL – HRM – HRR Super-Rockwell: HRN – HRT Brinell HBW (je nach Model): 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 (je nach Model): 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: HV1 – HV2 – HV3 – HV5 – HV10 – HV20 – HV30 – HV50 – HV100
Genauigkeit	Besser als 0.5 %

LD750 FULLY AUTOMATIC

ONLY 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 (PAT. AFFRI)

Closed loop load cells control load forces with a frequency of 1 khz, assuring perfect linearity in every range. Results are not affected by any structural deflection, misalignment or vibration.

MOTORIZED 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.

WIDE WORKHOLDER

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 mantained, even in the unlikely event of any specimen movement during the operation cycle. The clamping system assures perfect stability of any test piece throughout the test cycle.

Motorized turret (Indenter/Objective)

One slot for an indenter and one slot for an objective. Auto-rotating and auto-tool-switching for a complete automatic measurement cycle.

SOFTWARE LD 250

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.

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