MRS Series
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Rockwell hardness tester MRS series

MRS SERIES

Automatic hardness testers for Rockwell, Superficial Rockwell, Brinell, Vickers and Shore test methods in compliance with ASTM and ISO hardness standards. MRS Series are top level bench hardness testers for tough or lab applications. Fully motorized for fully automatic test cycles. Absolute accuracy (better than 0.5 %) in every condition. Load forces are applied through load cells and electronically controlled in Closed Loop (Pat. Affri). Exact hardness result on the first test and R&R data at the top of his class. Digital durometers with LCD screen, user friendly interface, real time statistics, graphs and large archive storage. Hardness testing on all metals: iron, steel, tempered steel, cast iron, brass, aluminum, copper and metal alloys. Heat treatment, hardening, nitriding, cementation and hardfacing. Hard and soft plastics.
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Test loads: from 1 to 250 kgf (From 9,807 to 2452 N)

Rockwell ISO 6508 / ASTM E-18: HRA - HRB - HRC - HRD - HRF - HRG - HRL - HRM - HRR  /  HRN - HRT

Brinell HBWT ISO 6506 / ASTM E-10: HB 30 - HB 10 - HB 5 - HB 2,5 MPa (F/D2)

Vickers ISO 6507 / ASTM E-384 (Only indentation): HV1 - HV3 - HV5 - HV10 - HV15 - HV20 - HV30 - HV50 - HV100


 

 

One button measurements

Rockwell Hardness tester STARTJust press one button and the hardness tester's head moves down to make contact with the sample's surface, locking it. The hardness test cycle will automatically begin in automatic succession without breaching a phase. Within seconds results appear.

Indenter stroke

Rockwell Hardness tester indenterWhen testing unstable samples or deflecting parts, the AFFRI System will follow the sample without losing contact thanks to its 50 mm stroke for indenter and clamping hood. Easy and fast hardness measurements on pieces with different thicknesses without acting on tester head or elevating screw.

Closed Loop technology (Pat. Affri)

Hardness tester Closed LoopLoad 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.

Repeatability and reproducibility (R&R)

Rockwell Hardness tests first resultAccurate 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.

Motorized tester's head

Rockwell Hardness tester motorized headAutomatic movement with automatic stop when contact is made with samples. Total of 700 mm of motorized vertical stroke. The approach of the head moving to the piece as opposed to the piece moving to the head allows for more accurate, stable and safe measurements.

Clamping system (Pat. AFFRI)

Rockwell Hardness tester press pieceSecure contact with the specimen is always maintained, 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, even if it's oiled, rusty or dirty.

Large base

Rockwell Hardness tester wide workholderThe 3332 MRS’s wide work table base is capable of bearing masses beyond 1000 kg which allows for steady hardness measurements on bulky or irregular pieces. It also offers a comfortable working base for small pieces.

Software

Rockwell Hardness test softwareThe pre-installed software controls the whole instrument during the entire cycle avoiding operator errors. Powerful analysis system with easy and fast test settings, live statistics and graph. Data and test sessions storage.
 
 

Technical features

 

Durometro durezza Rockwell 250 MRS Durometro durezza Rockwell 3332 MRS Durometro durezza Rockwell 3332/3302 MRSA
 
250 MRS
3332 MRS
3332 MRSA
3302 MRSA
Standards
EN-ISO 6506-2 / EN-ISO 6507-2 / EN-ISO 6508-2 / EN-ISO 2039 / EN-ISO 868 / ASTM E-18 E-10 / ASTM E-384 / ASTM E-2240 / JIS
X-Y Table
----
330x390 mm
Indenter and clamping-hood stroke
0/50 mm
----
0/50 mm
Vertical head stroke
----
0/300 mm
0/500 mm motorized (On request 0/700 mm)
Elevating screw stroke
0/215 mm
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Depth capacity
190 mm
200 mm
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)

Brinell: 49.03 - 61.29 - 98.07 - 153.2 - 245.2 - 294.2 - 306.5 - 612.9 - 1226 - 1839 N (On request 2452 N)
(5 - 6.25 - 10 - 15.6 - 25 - 30 - 31.2 - 62.5 - 125 - 187.5 kgf - On request 250 kgf)

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
Rockwell: HRC - HRA - HRD - HRB - HRF - HRG - HRL - HRM - HRR
Superficiale Rockwell: HRN - HRT
Brinell HBWT: HB30 - HB10 - HB5 - HB2.5 MPa (F/D2)
Vickers - Knoop (Only indentation): HV1 - HV3 - HV5 - HV10 - HV15 - HV20 - HV30 - HV50 - HV100
Shore A - D
Accuracy
Better than 0.5 %

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