State of the art, digital portable hardness tester is designed to test the hardness
of large hard metal parts. Loaded with useful functions only found on high
priced models the PHT-1800 portable hardness tester is clearly setting a new
industry standard by being the most accurate, economically priced portable
hardness tester on the market today. Fast test speeds coupled with memory and
output, this unit is a hands
down winner whether you are out in the field or in the QC shop.
The PHT-1800 portable hardness tester can perform tests that
easily convert to the most popular hardness scales, including Rockwell, Brinell,
Vickers, Shore, etc.
Designed to test large hard parts:
Example: Tool steel should be close to 1 thick of solid material
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Operation:
Load the impact body
Place the impact body on your test piece
Push the button to begin testing and obtain reading
Standard Accessories:
Base instrument
Impact device D
Calibrated test block
Custom carry case
Cleaning brush
Operation manual
Optional accessories:
Impact devices; DC, D+15, DL, G, C
Special support rings
Mini Printer
Functions:
Easy to use keypad operation
Auto identification of Impact Device
Large LCD display with back light
USB Ouput
Automatic conversions to: Brinell, Rockwell B & C, Vicker and Shore
Automatic mean value as well as Min & Max values
Battery Indicator
Memory capacity (100 groups)
Specifications:
Accuracy: +/- 0.5% (referred to L=800,
Repeatability accuracy: +/- 4L units) L=Leeb
Measuring range: 200-960 HL
Materials: steel & cast steel, alloy tool steel, stainless steel, grey cast iron,
spheroidal iron, cast aluminum, brass, bronze, wrought copper alloy.
Battery type: AA alkaline (4)
Operating temperature: 5-104 degrees F
Dimensions: 150 x 74 x 32mm
Weight: 245 grams
Special Application Impact Devices
Impact Device D
Universal standard device:
Use for the majority of hardness testing assignments
Impact Device DL (not shown)
Needle front section .109 diameter x 1.96 length
Measurements in extremely confined spaces
Impact Device G
Enlarged test tip: For use on solid heavy components such as; rough castings and forgings. Brinell only.
Impact Device DC
Extremely short impact device
Used for very confined spaces such as holes, cylinders, internal measurements
Impact Device D+15
Slim front section with coil set back.
Hardness measurements in grooves, recessed surface.
Impact Device C
Reduced impact energy
For testing case hardened or thin walled components
Impact Device Specifications for PHT-1800
Impact devices |
D/DC/DL |
D+15 |
C |
G |
Impact energy |
11Nmm |
11Nmm |
3Nmm |
90Nmm |
Mass of the impact body |
5.5g |
7.8g |
3.0g |
20g |
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DL: 7.2g |
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Test tip |
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* Hardness |
1600HV |
1600HV |
1600HV |
1600HV |
* Diameter |
3mm |
3mm |
3mm |
5mm |
* Material |
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Tungsten |
Tungsten |
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carbide |
carbide |
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Impact device |
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* Diameter |
20mm |
20mm |
20mm |
30mm |
* Length |
147/86mm |
162mm |
141mm |
254mm |
* Weight |
75/50g |
80g |
75g |
250g |
Max. hardness of sample |
940HV |
940HV |
1000HV |
650HB |
Preparation of surface |
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* Max. roughness depth Rt |
10 m m |
10 m m |
2.5 m m |
30 m m |
* Average roughness Ra |
2 m m |
2 m m |
0.4 m m |
6.3 m m |
Min. weight of sample |
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* Of compact shape |
5kg |
5kg |
1.5kg |
15kg |
* On solid support |
2kg |
2kg |
0.5kg |
5kg |
* Coupled on plate |
0. 1kg |
0. 1kg |
0. 02kg |
0. 5kg |
Min. thickness of sample |
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* Coupled |
3mm |
3mm |
1mm |
10mm |
* Min. thickness of layers |
0. 8mm |
0. 8mm |
0. 2mm |
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Indentation of test tip |
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With 300 HV |
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* Diameter |
0. 54mm |
0. 54mm |
0. 38mm |
1.03mm |
* Depth |
24 m m |
24 m m |
12 m m |
53 m m |
with 600 HV |
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* Diameter |
0. 45mm |
0. 45mm |
0. 32mm |
0. 90mm |
* Depth |
17 m m |
17 m m |
8 m m |
41 m m |
with 800 HV |
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* Diameter |
0. 35mm |
0. 35mm |
0. 30mm |
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* Depth |
10 m m |
10 m m |
7 m m |
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SUPPORT RINGS: We offer a 12pc set of rings for testing concave or convex parts. |
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PORTABLE HARDNESS TESTING
Why portable hardness testing? Portable hardness testers have come of age since the late 90’s, with a vast offering of high tech, digital instrumentation. Small, compact and menu driven, these instruments have never been easier to use for unlimited types of applications.
There are two basic methods of portable hardness testing that is accepted in the field today.
“Dynamic Impact” is based on the Leeb principle of hardness,developed by Dietmar Leeb in the 1970’s. A spring loaded impact body is thrust to the test surface, effecting rebound. The speed of both the initial thrust and the rebound is measured in a non-contact mode. This is calculated as a Leeb hardness value and then automatically converted to Rockwell C, B, Brinell, Vickers and Shore Values. It has effectually brought easy, fast and accurate results to portable hardness testing. |
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“Ultrasonic Contact Impedance” is based on a 136 degree diamond at the end of a vibrating rod being depressed into the test surface at a fixed load. The difference in Ultrasonic vibration frequency is then calculated into a hardness value. The UCI test procedure is slower than the Dynamic Impact style, however the “UCI” method of hardness testing is portable, easy and accurate. It also has its own advantages when utilized for certain testing applications. UCI testers are not restricted to large mass items like dynamic type testers. These units can test metals as thin as 1mm and at a hardness value as low as 20HRC (75HB). They also excel at performing hardness tests on larger, harder metals as well. Another reason for the rise in popularity is due to the fact that the UCI method is categorized as “Non-Destructive”. That translates into less scrap parts/ lower mfg costs due to necessary inspections. |
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Technical Data for Dynamic Impact Devices
Impact Devices → |
D/DC/DL |
D+15 |
C |
G |
Impact energy |
11Nmm |
11Nmm |
3Nmm |
90Nmm |
Mass of the impact body |
5. 5g |
7. 8g |
3. 0g |
20g |
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DL: 7.3g |
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Test tip |
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* Hardness |
1600HV |
1600HV |
1600HV |
1600HV |
* Diameter |
3mm |
3mm |
3mm |
5mm |
* Material |
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Tungsten |
Tungsten |
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carbide |
carbide |
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Impact device |
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* Diameter |
20mm |
20mm |
20mm |
30mm |
* Length |
147/86mm |
162mm |
141mm |
254mm |
* Weight |
75/50g |
80g |
75g |
250g |
Max. hardness of sample |
940HV |
940HV |
1000HV |
650HB |
Preparation of surface |
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* Roughness class ISO |
N7 |
N7 |
N5 |
N9 |
* Max. roughness depth Rt |
10 µ m |
10 µ m |
2.5 µ m |
30 µ m |
* Average roughness Ra |
2 µ m |
2 µ m |
0. 4 µ m |
7 µ m |
Min. weight of sample |
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* Of compact shape |
5kg |
5kg |
1.5kg |
15kg |
* On solid support |
2kg |
2kg |
0.5kg |
5kg |
* Coupled on plate |
0. 1kg |
0. 1kg |
0. 02kg |
0. 5kg |
Min. thickness of sample |
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* Coupled |
3mm |
3mm |
1mm |
10mm |
* Min. thickness of layers |
0. 8mm |
0. 8mm |
0. 2mm |
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Indentation of test tip |
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With 300 HV |
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* Diameter |
0. 54mm |
0. 54mm |
0. 38mm |
1.03mm |
* Depth |
24 µ m |
24 µ m |
12 µ m |
53 µ m |
with 600 HV |
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* Diameter |
0. 45mm |
0. 45mm |
0. 32mm |
0. 90mm |
* Depth |
17 µ m |
17 µ m |
8 µ m |
41 µ mC |
with 800 HV |
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* Diameter |
0. 35mm |
0. 35mm |
0. 30mm |
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* Depth |
10 µ m |
10 µ m |
7 µ m |
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Technical Data for UCI Hardness Tester
Test Device |
U1
(UCI) |
Length |
160mm |
Diameter |
25mm |
Indentation Depth |
30µm |
Pressure Force |
14.7N |
Transducer Test Life (approx) |
200,000 |
Min. Thickness for test |
1mm |
Min. Radius for Test |
5mm |
Max Roughness of surface |
Ra 2.5µm |
Max Archive |
100 Tests |
Time of Test |
4 sec. |
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Comparison of Hardness Testing Methods-Phase II Models shown below |
Data |
Dynamic |
Ultrasonic |
Rockwell |
Requirements |
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Surface Finish |
Smooth |
Smooth |
Smooth-Semi Rough |
Rigid Support of Sample |
Yes |
Yes |
Yes |
Test sample portability |
Not required |
Not required |
Required |
Procedures |
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Structural Steel |
Functional |
Functional |
Functional |
Heat Treated Steel |
Functional |
Functional |
Functional (HRC) |
Case Hardened Material |
Functional |
Functional |
Functional (HRC) |
Non-Ferrous Metals |
Functional |
Functional |
Functional (HRB) |
Large Samples |
Yes |
Yes |
Restricted |
Small Samples |
Restricted |
Yes |
Yes (w/proper scales) |
Thin Samples |
Restricted |
Yes |
Restricted |
Curved/Round Surfaces |
Yes |
Yes |
Restricted |
Special Features |
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Automatic Test Procedure |
Yes |
Yes |
Yes |
Direct Hardness Value |
Yes |
Yes |
Yes |
Required Time for Avg/5 Tests |
Approx. 10 Sec. |
Approx. 20 Sec. |
Approx. 2 Minutes |
Digital Display |
Yes |
Yes |
Some Models |
Scale Conversions |
Yes |
Yes |
Some Models |
Directional Testing |
Yes |
Yes |
No |
Standardized by: |
ASTM |
ASTM |
NIST (HRC scale only) |
Indentation Depth |
20µm |
30µm |
160µm |
Operator Requirements |
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Skills Required |
Minimal |
Minimal |
Minimal |
Possible Reading Error |
None |
None |
None |
Instrument Features |
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Portability |
Yes |
Yes |
No |
Power Supply |
Battery |
Battery |
Manual/110v |
Output to PC |
Yes |
Yes |
Some Models |
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Type |
Model |
Model |
Dynamic Testers |
PHT-2000D |
PHT-2500D |
Ultrasonic (UCI) |
MET-U1 |
MET-UD |
Rockwell |
900-331 & 900-340 |
900-360 & 900-370 |
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