Twin tester--Regular Rockwell & Rockwell Superficial hardness for metal and plastic material. Horizontal Protrudent Indenter Design, suitable also for internal and external testing. Testing on Surfaces difficult to reach. Testing internal surface of rings and tubes with diameters over 23mm. Modern design with Titanium metallic Silver finish Provided with many features such as high measuring precision, wide measuring range with 30 Rockwell scales. The tester is suitable for testing of carbon steel, alloy steel, cast iron, non ferrous metal. Automatic load cycle. The loading, dwell, unloading process of the main test force are controlled exactly to meet standard. Measuring results digitally displaying and can be printed, or transmitted to external computer automatically by USB or RS-232 data output port. Test value can be transformed to the value of HB, HV, HK and σb value. The tester meeting all the following standard such as ISO 6508-2, ASTM E18. Preload：29.4N（3kgf）, 98.1N (10kgf) Total test force：147.1N(15kgf), 294.3N(30kgf), 441.3N(45kgf), 588.4N (60kgf), 980.7N (100kgf), 1471N (150kgf) Scales：HR15N, HR30N, HR45N, HR15T, HR30T, HR45T, HR15W, HR30W, HR45W, HR15X,   HR30X, HR45X, HR15Y, HR30Y, HR45Y HRA，HRB，HRC，HRD，HRE，HRF, HRG，HRH，HRK，HRL，HRM，HRP, HRR， HRS，HRV Load dwell duration： 2～50s, can be set and stored Resolution ：0.1HR Display：High definition backlight LCD Operation：Menu selectable, Membrane keypad Upper/lower limits setting & alarming Data statistics： Avg., Max., Min., S, R available Curved surface correcting automatically Memory: Max 400 items of test results stored automatically Data output： RS-232 to micro printer, USB port to external PC Testing space：260mm in vertical, 150mm in horizontal Dimensions： 710mm×210mm×830mm Power supply：AC, 220V/110V, 50～60Hz, 4A Net weight：110kg  

Standard configuration
    Host machine    1
    Standard hardness block for A scale     1
    Standard hardness block for B scale      1
    Standard hardness block for C scale    1
    Standard hardness block for 30N scale    1
    Standard hardness block for 30T scale    1
    ball indenter (1/16″)    1
    120°cone diamond indenter    1
    Mounting screws for indenter    2
    Flat anvil    1
    “V ”shape anvil    1
    Power supply wire    1
    Screwdriver for indenter mounting    1
    Dust cover    1
Optional accessories:
    Short diamond indenter
    Chisel diamond indenter
    Slender diamond indenter
    1/8″ball indenter and spare steel ball
    1/4″ball indenter and spare steel ball
    1/2″ball indenter and spare steel ball
    φ225 anvil
    φ150 anvil
    Standard hardness block for other scales
    Micro printer