Obsnap Instruments Sdn Bhd
29A, Jalan SS 15/4C,
47500 Subang Jaya,
Selangor, Malaysia.
+603-5621 5786
+603-5621 5829

Bench Hardness Tester - Rockwell - TH320 Digital Rockwell Hardness Tester

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Resolution(0.1Rockwell unit)



Product introduction
The TH320 Rockwell Hardness Tester is a functional hardness tester integrated with the function of Rockwell hardness tester, superficial Rockwell hardness tester and plastic Rockwell hardness tester. It adopts the measuring principle of Rockwell, which can directly test the Rockwell hardness, superficial Rockwell hardness, plastic Rockwell hardness. In addition, it is able to convert the Rockwell hardness value into HB, HV, HLD, HK value and so on. It has the features of high accuracy, large measuring range, automatic force loading and unloading of main load, displaying and automatically printing of the testing result, communication with computers and so on.
Horizontal protrudent nose design, testing on surfaces difficult to reach
Testing internal surface of ring parts whose diameter is not less than 23mm(0.900กจ)
Testing external surface of round bars whose diameter is not less than 3mm (0.120กจ)
Automatic test process
High definition backlight LCD
Simple and easy selectable operation menu
RS-232/USB data output
TH320: Rockwell & Rockwell superficial hardness tester
Technical Specification

Model TH320
Hardness scales Rockwell A,B,C,D,E,F,G,H,K,L,M,P,R,S,V
Rockwell superficial15/30/45N,T,W,X,Y
Resolution 0.1Rockwell unit
Pre-load 98.07N/10kgf, 29.42N/3kgf
Total load 588.4N/60kgf, 980.7N/100kgf,
1471N/150kgf, 147.1N/15kgf,
294.2N/30kgf, 441.3N/45kgf
Display Matrix backlight LCD
Language English
Operation Menu selectable, Membrane keypad
Test process Automatic
Load duration 2-50 seconds, Can be set, dynamic displayed and stored
Functions Upper / lower hardness limits setting and alarming
Data statistics : Ave., Max., Min., standard Deviation,
convert tested values to HB, HV, HLD and δb (Tensile-strength)
Curvature correction: cylinder and sphere surface
Data output RS232
standard ISO6508.2 , ASTM E-18
Testing space Vertical: 250mm (9.85กจ)   Horizontal:150mm (5.91กจ)
Vertical: 250mm (9.85กจ)   Horizontal:150mm (5.91กจ)
Work piece size External surface cylinder: Min.φ3mm (0.120กจ)
Internal surface cylinder: Min.φ23mm (0.900กจ)
Power supply 220v/110v, 50Hz, 4A
Dimensions 720mm×240mm×815mm
Weight 120kg

Standard Delivery
Main unit
Test Block A, B, C
Test Block 15N
Test Block 30N
Test Block 30T
120° cone diamond indenter
1/16"ball indenter
1/16"spare ball
Screw for indenter
Round flat anvil
Large Vee anvil
Power supply cable
Instruction manual
Warranty card
TIME certificate
Optional Accessories
Printer TA230
Connecting cable
Short diamond indenter
Flat diamond indenter
Slim diamond indenter
1/8 กจ(φ3.175mm) indenter and spare ball
1/4 กจ(φ6.350mm) indenter and spare ball
1/2กจ(φ12.70mm) indenter and spare ballRound flat anvil φ225
Round flat anvil φ150
Small Vee anvil
Flat /Vee anvil
Assistant support
Assistant joist
Industry Application
The TH320 Rockwell Hardness Tester can be used to test the hardness of carbon steel, alloyed steel, cast iron, non-ferrous metals, project plastic and so on. It is widely used for the testing, scientific researching and processing of these industries, like metering, machine manufacture, metallurgy, chemical, construction.
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