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Mitutoyo Rockwell Hardness Tester-HR521


Preliminary Test Force 29.42N(3kgf) 98.07N(10kgf)
Test Force Rockwell 588.4N (60kgf), 980.7N (100kgf), 1471N (150kgf) Rockwell Superficial 147.1N (15kgf), 294.2N (30kgf), 441.3N (45kgf)
Specimen Depth 5.9in-150mm
Dimension 9.84×26.38×23.82in 250x670x605mm
Display Touch screen operation with back-lit LCD graphic display
Drive Manual (w/Auto-brake mechanism)
Max. Specimen Height 8.1in-205mm
Mass 132lbs 60kg
Output RS-232C, SPC, Centronics
Load Duration Range 0/s min-120s/ max s/ increment
  • Multiple test force generation for
    Rockwell, Rockwell Superficial and Brinell hardness.
  • Dolphin-nose indenter arm for easy reach of interior (min. ø40mm/ø22mm*) and exterior surfaces. *When using an optional diamond indenter (19BAA292).
  • Real time electronic test force control for accurate loading. This perfectly eliminates load force overshooting.
  • Indenter escape function for continuous testing at fixed table position. This eliminates instability caused by the table retraction.
  • Auto-stop elevation table and automatic preliminary test force loading to provide stable test force generation.
    Technical Data

        Preliminary test force: 29.42N, 98.07N
        Test force
        Rockwell superficial: 147.1, 294.2, 441.3N
        Rockwell: 588.4, 980.7, 1471N
        Brinell*: 61.29, 98.07, 153.2, 245.2, 294.2,306.4,
        612.9, 980.7, 1226, 1839N
        Test force setting: By control unit
        Load control: Automatic
        (loading, duration, unloading)
        Load duration: 0s – 120s (1s increments)
        Max. specimen height: 205mm (for standard flat anvil)
        Max. specimen depth: 150mm
        (from the center of indenter shaft)
        Stage elevation: Manual or power drive
        Control unit: Sheetswitch type or touch screen type
        Data output: RS-232C, Digimatic code (SPC) and
        Power supply: 120V AC, 50/60Hz
        Dimensions (W x D x H)
        Main unit: 250 x 670 x 605mm
      Control unit: 165 x 260 x 105mm


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