Mitech MHVS-10Z Digital Automatic Turret Vickers Hardness Tester

Product Description

Mitech MHVS-10Z Digital Automatic Turret Vickers Hardness Tester

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Product Overview

Mitech MHVS-Z Series Digital Automatic Turret Vickers Hardness Tester, based on the principle that positive quadrangular pyramid diamond indenter presses the surface of thesample to produce indentation.By measuring the diagonal length of the indentation to achieve the measurement of the hardness of the material can be for small specimens, thin specimens, surface coating, heat treatment of the workpiece surface Vickers hardness test. With stable performance, strong structure, high reliability, simple operation, digital display,adopt high magnification optical measurement system, adjust the cold light source, photoelectric sensing technology and computer-aided means it has a powerful function. It is widely used in the fields of metal processing, electronics industry, mold parts, watch manufacturing, engineering quality inspection and so on. It is an ideal hardness tester for material research and testing.

Function & application

  • Small, thin specimen.
  • Surface heat treatment workpieces.
  • Surface coating
  • Glass, ceramics, agate, artificial gemstones and other more brittle, hard non-metallic materials

Working Principle

Micro-Vickers (or Knoop) hardness test principle is that put the provisions of the positive pyramid diamond indenter into the sample surface(with fixed experimental force) and maintain a certain length (holding), and then unloading. Finally, there is a positive quadrangular pyramid or kenup indentation with a square surface on the surface of the specimen. Then we can attain the area of indentation via measuring the length of the diagonal by a micrometer eyepiece. Then the corresponding Vickers (or Knoop) hardness values are obtained.

Usually Vickers hardness values can be converted according to the following formula

HV=constant×test force / indentation surface area≈0.1891 F/d2


HV, Vickers hardness symbols

F, test force

d, the arithmetic mean of of the two diagonal d1, d2

Working Conditions

  • Operation Temperature:18~28℃;
  • Relative Humidity:≤65%;
  • In an environment free from vibration,no corrosive medium.
  • Installed on a flat basis.

Instrument Features

  • Widely used in micro-specimen, thin specimen, surface coating, heat treatment of workpiece surface samples and etc.Vickers hardness test to meet different demands of scientific research institutions, precision machining and quality inspection departments and other materials research;
  • Adopt automatic turret device, can be self-conversion indenter and microscopic eyepiece, high efficiency;
  • ESupport Brinell, Vickers and other hardness units convert.
  • Equipped with a variety of small load Vickers hardness scale spare;
  • Equipped with high-speed thermal printer, real-time print test results;
  • Modeling novel, strong structure, the use of diamond indenter, strong wear resistance, high reliability, intuitive readings, accurate measurement;
  • Host stability is good, the workpiece surface quality and man-made factors on the hardness of the test results less impact;
  • The use of electronic automatic loading system to control the main test force, eliminating the need to load the weight, the operation more convenient;
  • Using large-screen LCD liquid crystal display, easy to operate, can visually display the test results;
  • Using high magnification optical sensor system and high precision photoelectric sensing technology, test point positioning accuracy, test results more accurate;
  • Adjustable cold light source measurement system, through the software to control the light source strength;
  • Optional photographic device, can be achieved on the measured indentation and material microstructure to shoot for future analysis;
  •    Meet ISO 6507, ASTM E92, JIS Z2244, GB / T4340.2 and other relevant domestic and foreign standards.

Instrument Maintenance

  • Read the manual carefully before using the instrument. Learn the operation steps and       attentions to avoid damage the instrument or personal safety accidents caused by improper operation;
  • The instrument should be carried at the bottom of the handling, to prohibit cross. Before loading, please unplug the power plug, fixed measuring lever and remove the weight and boom;
  • Carefully remove the shockproof tape for protecting the indenter when installed otherwise the accuracy of indenter positioning is not high;
  • The surface of the test piece should be smooth, no dirt, scale, pits and significant processing traces;
  • Machine add unloading test power, it is forbidden to turn the variable load the handwheel, such as rotating dislocation can lead to internal gear, chaos test force, and even cause damage to items within the machine;
  • Diamond indenter and indenter are the core of the instrument, the operation should be careful not to touch the pressure head
  • The indenter should be kept clean when used to ensure the accuracy of the test. If the indenter is stained with oil or dust and other stains, can be used cotton with absorbent (industrial) or ether in the top of the indenter carefully wipe clean
  • When not in use for a long time should cover dust cover, in order to prevent dust into the machine interior, hardness block, ball head after using coated with anti-rust oil, prevent rust;
  • After a long idle time, the electrical components should be preheated before testing
  • Conducted at least once a year instrument verification, to ensure the accuracy of the hardness tester
  • When replacing the fuse or removing the weight, turn off the power first;

Specifications Mitech MHVS-10Z Digital Automatic Turret Vickers Hardness Tester :

Test force 2.94N、4.9N、9.8N、29.4N、49N、98N
Measurement range 8HV0.3~2500HV10
Hardness symbol HV0.3、HV0.5、HV1、HV3、HV5、HV10
The conversion mode of the head and the objective lens Automatic operation
Loading and unloading mode Automatic operation
Magnification of measuring microscope 200x(testing) 100x(observing)
Minimum detection unit 0.0625μm
Maximum height of applicable materials 160mm
Test to secure the load time 0~60s
Maximum distance from the center of the head to the machine wall 135mm
Display attributes Large screen LCD digital
Power supply AC220V/50Hz
Dimension of Exterior 540*220*650mm
Machine weight 40kg


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