เครื่องทดสอบความแข็งแบบตั้งโต๊ะชนิด Rockwell KHR-300

KHR-3 Series Digital hardness testers are our top-of-the-line deadweight type Digital Rockwell hardness testers which meet and exceed ASTM E-18 requirements. Available in three versions of KHR-300 Regular Rockwell or KHR-310 Superficial Rockwell or KHR-320 TWIN Rockwell (Regular & Superficial Rockwell scales), these advanced and highly accurate hardness testers are ideal instruments for both lab environments as well as production floor.

Additional advantages that make the KHR-3 Series hardness testers, top contenders on the market are the 2 year warranty, extended indenter nose design for convenient inside or outside of test pieces hardness measurement, easy to use and stylish design, high definition backlit LCD, Auto conversion to other hardness scales, RS232 interface, low maintenance and rugged construction, as well as unbeatable price/quality ratio.

Innovative and state-of-the-art Digital Rockwell Hardness Tester

•Horizontal Protrudent Indenter Design,suitable also for internal and external testing

•Modern design with Titanium metallic Silver finish

•Dead-weight Type

•Testing on Surfaces difficult to reach

•Testing internal surface of rings and tubes with diameters over 23mm

•Testing external surface of round bars with diameters over 3mm

•Automatic test procedure

•High definition backlight LCD

•Simple and easily selectable operation menu

•RS-232 data output

•Unbeatable Cost/Quality Ratio

•2 Year Warranty

Specifications

Model	KHR-300	KHR-310	KHR-320
Preload	98.1N (10kgf)	29.4N (3kgf)	29.4N (3 kgf) 98.1N (10 kgf)
Total test force	588.4N (60kgf), 980.7N (100kgf), 1471N (150kgf)	147.1N(15kgf), 294.3N(30kgf), 441.3N(45kgf)	147.1N(15kgf), 294.3N(30kgf), 441.3N(45kgf), 588.4N (60kgf), 980.7N (100kgf), 1471N (150kgf)
Scales	HRA，HRB，HRC，HRD，HRE，HRF, HRG，HRH，HRK，HRL，HRM，HRP, HRR，HRS，HRV	HR15N, HR30N, HR45N, HR15T, HR30T, HR45T, HR15W, HR30W, HR45W, HR15X, HR30X, HR45X, HR15Y, HR30Y, HR45Y	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 500 items of test results stored automatically
Data output	RS-232 to micro printer, USB port to external PC
Testing space	240mm in vertical,155mmin horizontal
Dimensions	720mm×220mm×800mm
Power supply	AC, 220V/110V, 50～60Hz,4A
Net weight	120kg	110kg	130kg

Standard Configuration

	KHR-300	KHR-310	KHR-320
Host Machine	√	√	√
Standard hardness block for A scale	√		√
Standard hardness block for B scale	√		√
Standard hardness block for C scale	√		√
Standard hardness block for 30N scale		√	√
Standard hardness block for 30T scale		√	√
Ball indenter (1/16”)	√	√	√
120°cone diamond indenter	√	√	√
Mounting screws for indenter ×2	√	√	√
Round plane anvil	√	√	√
“V” Shape anvil	√	√	√
Power supply wire	√	√	√
Screwdriver for indenter mounting	√	√	√
Dust cover	√	√	√