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LCD Display Digital Hardness Tester Stable Performance Cantilever Tester MHRS-150T

Categories Digital Hardness Tester
Brand Name: Mitech
Model Number: MHRS-150T
Certification: EN-ISO,GB,JJG.ASTM..
Place of Origin: Beijing China
MOQ: 1 piece
Payment Terms: T/T, Western Union,PayPal
Supply Ability: 50units per month
Delivery Time: 5-8 work days
Packaging Details: Wooden box
Preliminary testing force: 29.4N、98.07N,tolerance±2.0%
Testing force: 147.1N,294.2N,441.3N,588.4N,980.7N,1471N,tolerance±1.0%
Indenter specification: Diamond cone Rockwell indenter, Φ1.5875mm steel ball indenter
Display: LCD
Conversion scale: HV、HBW、HK
Indication error: 0.01HR
Duration time: 1~30s
Maximum height of specimen: 200mm
Power supply: AC220V/50Hz
Dimension: 700*250*600mm
Main unit weight: 100kg
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    LCD Display Digital Hardness Tester Stable Performance Cantilever Tester MHRS-150T

    Mitech MHRS-150T Cantilever Rockwell Hardness Tester

    Overview

    Mitech MHRS-150T Cantilever Rockwell Hardness Tester, also known as convex nose dual Rockwell hardness, based on the mechanical principle of conical diamond or hard alloy indenter pressing into the sample surface to produce indentation, realizing the material hardness measurement by measuring the depth of the indentation. With novel appearance, stable performance, touch screen operation easy and real-time monitoring test environment temperature, it can solve the problem of ring, tube, groove type workpiece surface, convex workpiece surface while other general Rockwell hardness tester can not measure the workpiece Rockwell hardness testing requirements. it is widely used in metal processing and manufacturing, various metal material’s failure analysis and other fields like colleges and research institutions, and it is the precise and high-tech equipment to test the metal materials Rockwell hardness.

    Technical Parameters

    Technical specificationsTechnical Parameters
    Preliminary testing force29.4N,98.07N,tolerance±2.0%
    Testing force147.1N,294.2N,441.3N,588.4N,980.7N,1471N,tolerance±1.0%
    Measuring range

    HRA:20-88,HRB:20-100,HRC:20-70,HRD:40-77,

    HRE:70-100, HRF:60-100,HRG:30-94,HRH:80-100,HRK:40-100,HRL:100-120, HRM:85-110,HRR:114-125

    Testing force application ModeAutomatic operation (preliminary test force needs manual operation)
    Indenter specificationDiamond cone Rockwell indenter, Φ1.5875mm steel ball indenter
    DisplayLCD
    Rockwell scaleHRA,HRB,HRC,HRD,HRE,HRF,HRG,HRH,HRK,HRL,HRM,HRP,HRR,HRS,HRV
    Conversion scaleHV,HBW,HK
    Indication error0.01HR
    Duration time1~30s
    Maximum height of specimen200mm
    Distance of indenter to outer wall150mm
    Power supplyAC220V/50Hz
    Dimension700*250*600mm
    Main unit weight100kg

    Indication error

    ScaleStandard Hardness RangeAllowed Maximum tolerance
    HRA20-75HRA±2HRA
    75-88HRA±1.5HRA
    HRB20-45HRB±4HRB
    45-80HRB±3HRB
    80-100HRB±2HRB
    HRC20-70HRC±1.5HRC
    HRD40-70HRD±2HRD
    70-77HRD±1.5HRD
    HRE70-90HRE±2.5HRE
    90-100HRE±2HRE
    HRF60-90HRF±3HRF
    90-100HRF±2HRF
    HRG30-50HRG±6HRG
    50-75HRG±4.5HRG
    75-94HRG±3HRG
    HRH80-100HRH±2HRH
    HRK40-60HRK±4HRK
    60-80HRK±3HRK
    80-100HRK±2HRK
    HRL100-120HRL±1.2HRL
    HRM85-110HRM±1.5HRM
    HRR114-125HRR±1.2HRR
    N-±2HRN
    T-±3HRT

    Features

    • Widely used in the ring, tube, groove type workpiece surface, it can test the convex parts of the workpiece and the workpiece Rockwell hardness and surface Rockwell hardness that other general Rockwell hardness tester can not measure;
    • Adopt large-screen LCD, easy to operate, visually display the test results;
    • Equipped with excellent performance of cemented carbide or diamond indenter, high hardness, wear resistance, good toughness, with high temperature, corrosion resistance, to ensure that the instrument test value is accurate, stable and reliable;
    • With the function of error value correction, the hardness value of the error can be automatically modified by key input, easier to meet the test accuracy requirements;
    • Support the conversion among various hardness scales such as Brinell, Vickers and etc;
    • With the function of threshold overrun automatic alarm, which applies to the bulk of finished products or semi-finished pieces of paper-by-piece detection;
    • Option for various specifications of the indenter, support 15 types of Rockwell hardness scales testing;
    • The function of original ambient temperature real-time display can avoid the instrument working in the case of high or low temperature for a long time , resulting in increased test error and reducing the service life;
    • Equipped with high-speed thermal printer, real-time print test results;
    • Consistent with EN-ISO-6508,GB/T230.1,GB/T230.2,JJG112,ASTM E18 and other relevant standards at home and abroad.

    The Scope of Application

    ScaleIndenter typepreliminary testing forceTesting force (N)

    Measuring

    range

    Application
    A

    Diamond

    cone

    98.07(N)588.4(N)20-88HRAhard alloy, carbide, surface quenched steel, carburizing steel
    D980.7(N)40-77HRDthin steel sheet, surface quenched steel
    C1471(N)20-70HRCquenched steel, tempered steel, chilled cast iron
    F

    Φ1.5875

    1/16 inch steel ball


    588.4(N)60-100HRFcast iron, aluminum, magnesium alloy, bearing alloy
    B980.7(N)20-100HRBmild steel, copper alloy, annealed steel
    G1471(N)30-94HRGphosphorus iron, beryllium bronze, malleable cast iron
    H

    Φ3.175

    1/8inch steel ball


    588.4(N)80-100HRHaluminum, zinc, lead etc.
    E980.7(N)70-100HREbearing alloy, tin, hard plastics and other soft materials
    K1471(N)40-100HRK
    L

    Φ6.35

    1/4 inch steel ball

    588.4(N)50-115HRLHard plastic ,hard rubber, aluminum, tin, bronze, mild steel, synthetic resin, friction materials and etc.
    M980.7(N)50-115HRL
    R

    Φ12.7

    1/2 inch steel ball

    588.4(N)50-115HRL

    Note: A, B, C are the commonly used test scales for Rockwell hardness test.


    scaleIndenter typeInitial test forceTotal test forceThe scope of application
    15NDiamond cone29.42(N)147.1(N)Surface carburizing layer, surface nitriding layer, surface hardened steel plate etc.
    30N294.2(N)
    45N441.3(N)
    15T

    Φ1.5875

    1/16inch steel ball

    147.1(N)The cast iron, magnesium alloy, bearing alloy, mild steel, copper alloy, annealed steel, phosphor bronze, beryllium bronze, malleable cast iron and other thin specimens.
    30T294.2(N)
    45T441.3(N)
    15W

    Φ3.175

    1/8inch steel ball

    147.1(N)The aluminum, zinc, lead, tin, hard plastic and other thin specimens.
    30W294.2(N)
    45W441.3(N)
    15X

    Φ6.35

    1/4inch steel ball

    147.1(N)The hard rubber, copper, synthetic resin and friction materials such as thin specimens.
    30X294.2(N)
    45X441.3(N)
    15Y

    Φ12.7

    1/2inch steel ball

    147.1(N)
    30Y294.2(N)
    45Y441.3(N)

    Note: The surface Rockwell hardness test commonly use the N and T two scales.

    Applications

    • Used for quality control in metal processing manufacturing
    • Used for failure analysis testing of metallic materials;
    • Demonstration experiment for education and teaching in Colleges and Universities;
    • Hardness testing of materials in scientific research institutions

    Working Conditions

    • Operation Temperature:10~30℃;
    • Relative Humidity:≤65%;
    • The surrounding environment should avoid of vibration, strong magnetic field, corrosive medium and heavy dust.

    Configurations

    Configuration instructionsNO.NameQTY.Remarks
    Standard Configuration1Main unit1
    2Diamond Rockwell indenter1
    3

    φ1.5875mm

    1/16 inch steel ball indenter

    1
    4Thermal printing paper1
    5Small testing table1
    6Large testing table1
    7V-shape testing table1
    8Rockwell Standard Block3
    9Fuse2
    10Power cable1
    11Plastic dust cover1
    12Attached files1
    13ABS instrument case1
    Optional Configuration1

    Φ3.175mm

    1/8inch steel ball indenter

    1Mainly used for measuring hard plastic and other non-metallic materials Rockwell hardness.
    2

    Φ6.35mm

    1/4inch steel ball indenter

    1
    3

    Φ12.7mm

    1/2inch steel ball indenter

    1

    Maintenance and Precautions

    • The test personnel should follow the operating procedures.Before and after the test,it should be repeated with standard block calibration equipment;
    • The hardness value needs to be corrected when the measured surface specimen is less than 38 (25) mm.
    • If the specimen has visible deformation marks on the back and edges, the test result would be useless. It should choose the intender or test force to test again;
    • Normally, the first point is only used to offset the gap of each support surface without needing to record the test result. Record the statistical test result from the second point;
    • During testing, to ensure accuracy, please make sure the distance between the adjacent indentation center and the distance from the indentation center to edge of the specimen is greater than 3mm;
    • Pay attention to palm the instrument for carrying to forbid falling across. Please fix well the measuring lever, counterweight and boom before carrying;
    • It is strictly prohibited to turn the variable loading handwheel when the instrument load or unload the test force. Rotating the handwheel forcibly will cause the internal gear dislocation, test force in chaos and even damage the internal parts of the instrument;
    • Turn off the power after using the instrument;
    • When not in use for a long time, please cover the dust cover to prevent dust into the instrument interior. And the hardness block, indenter should be coated with antirust oil to prevent rusting after using;
    • Long time after the re-enabled,it should be preheated the electrical components before test
    • The hardness tester should be calibrated at least once a year to ensure its accuracy;
    • Don’t disassemble the instrument without authorization, for maintenance related matters, please contact MITECH after-sale service department with 4000600280.

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