SH-21(E) - Ultrasonic Hardness Checker
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The ultrasonic hardness checker (SONOHARD) model SH-21(E) differs completely from traditional hardness testers from a viewpoint that instead of measuring the size of the indentation of the test sample using a microscope, it employs a diamond indenter equipped with a vibrating rod that presses on the test surface at a fixed force and then measures its hardness by applying ultrasonic vibrations
FEATURES
- Measurement only takes a few seconds
- Leaves only tiny indentations on test specimens (approx. 0.1mm2)
- Hardness values can be read directly (HV, HRC, Hs, HB)
- Conversion to breaking strength (N/mm2)
- Measuring stands (wooden, iron, resin, etc.) do not influence measurement
- Measurements do not affect the backs of test samples
- Can be certified by Nippon Kaiji Kyokai (NK)
- 4000 points of data memory
- 10 points of calibration memory
ADVANTAGES
- Most suitable for measuring quenching hardness of narrow sections, enclosed sections, and internal/external gauge sections
- Supports four scales, HV, HRC, HS, and HB
- Capable of storing up to 2000 points for data and 10 points for calibration values
- Applicable to product inspection also for its undetectable indentation
- Enabling measuring of probes in any direction of up, down, left, and right
APPLICATIONS
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Evaluation of carburizing and quenching, and high frequency quenching
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Weld hardness measurement for welded structures (tank, hull, bridge, steel tower, etc.
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Hardness measurement for a gear tooth flank (narrow area)
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Measurement of the hardness of a facility or a structure's strength
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100% online inspection for components (engine valve, rack bar, crankshaft, bearing, etc.)
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Samples of Tested Products:
- Motor vehicle parts
- Pressed moldings
- Steel fame welds
- Measurement of small parts
- Gravure printing rolls
- Papermaking mill rolls
- Measurement of roll surfaces
- Measurement of pipes for high-pressure gases and liquids
- Railway axles
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SPECIFICATIONS
| Name/model | Ultrasonic Hardness Checker SONOHARD® SH-21(E) | |
| Measuring Indenter | Diamond indenter for Micro-Vickers (facing-to-surface angle of 136 deg) | |
| Test load | 1. Approx 2kgf (roughly 20N) | SH-21-E2 |
| 2. Approx 1kgf (roughly 10N) | SH-21-E1 | |
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1. Approx 4kgf (roughly 40N) (Special Type Manual Probe Only) |
SH-21-E4 | |
| Measuring range |
1.
Rockwell hardness: HRC10.0 to HRC70.0 2. Vickers hardness: HV50 to HV999 3. Shore hardness: HS20.0 to HS99.9 4. Brinell hardness: HB85 to HB550 |
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| Reproducibility | HRC:± 1.0HRC | HV : ± (3%rdg)HV |
| HS: ± 1.0HS | HB : ± (3%rdg)HB | |
| Applicable test materials | Steel (other materials can be tested using a standard calibration block) | |
| Display | Digital display (LCD, 4 digits) with EL backlight | |
| Data memory | 2000 points | |
| Digital display units | 1HV, 0.1HRC, 0.1HS, 1HB, 1N/mm2 (tensile strength) | |
| Allowable operating temperature | 0-50 degC | |
| Power source | AC adapter (100-240V) or lithium ion rechargeable battery | |
| Dimensions |
Display unit: 97(W) x 50 (D) x 170
(H) mm Probe diameter: 40mm, length: 164mm |
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| Weight |
Display unit: 400g (including
battery) Probe and cable: approx. 400g |
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| Carrying case dimensions | 400 (W) x 220 (D) x 10 (H) mm | |
| Standard components |
1 display unit, 1 probe (including
standard attachment / UA5410) 1 hardness standard test block (around HRC55) 1 probe cable 1.5m, 1 AC adapter 100-240V (A05C1-09MI) 1 recharger (MK-8220), 1 lithium ion battery (MK-8410) 1 carrying case (MK-9701) |
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| Options |
- Standard hardness test blocks
HV600, HS50, HB300 used for scale calibration - Measuring stand for small objects (SH-S02) - Probe attachment for pipes materials (UA4-4005) - Probe attachment for inner races (UA4-4006) - Printer model DPUH245AS with cable - Printer paper (TP-H241L) - Stand for the main unit (SH-P03) |
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PICTURE
SH-21(E) Ultrasonic Hardness Checker
(optional)
