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Phase II PHT-6000 Series UCI/Dynamic Hardness Tester


Non-Destructive Hardness Testing

MEASURING METHOD: UCI & Leeb Portable Hardness Testers

There are two basic methods of portable hardness testing that is accepted in the field today.

“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 portable hardness tester 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 portable hardness testers are not restricted to large mass items like dynamic type testers. These portable hardness testers can test metals as thin as 2mm 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.

“Dynamic Impact” is based on the Leeb principle of portable 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.


  • Non-Destructive hand held portable hardness tester
  • Combines UCI and Leeb portable hardness testing in one state of the art device
  • Test steel with min thickness of .08” and unlimited max thickness (Other materials may have larger minimum thickness levels, depending on hardness)
  • Blazing fast test results
  • Rockwell, Brinell and Vickers hardness test conversions shown on display
  • Large Memory w/USB Output
  • Choice of manual UCI probes; 1kg, 2kg, 5kg & 10kg
  • Optional Motorized Probes: .30kg, .80kg, & 1kgf
  • Available Impact Devices(Leeb) D, DC, D+15, G & DL


UCI Portable Hardness Tester

Scales-UCI Measurement Range Tolerance
Rockwell C
Rockwell B
20-70 HRC
41-99 HRB
+/- 1.5 HRC
+/-1.5 HRB
Rockwell A 61-85 HRB +/-1.5 HRA
76-618 HB
80-1599 HV
+/- 3% HB
+/- 3% HV

Can also test in the following scales(UCI only) HRN15 - HRN30 - HRN45 - HRT15 - HRT30 - HRT45 HRF – HK - HD

LEEB Portable Hardness Tester

Scales-UCI Measurement Range Tolerance
Rockwell C
Rockwell B
25-67 HRC
59-99 HRB
+/- 1.5 HRC
+/-1.5 HRB
Brinell 85-651 HB +/- 10 HB
83-976 HV
+/- 12 HV
Leeb 170-960HLD +/- 6HL

UCI portable hardness tester w/manual probe

Model No. Description Application Notes
PHT-6001 UCI Portable Hardness Tester w/1kgf Probe For surfaces with Ra below 125μin
PHT-6002 UCI Portable Hardness Tester w/2kgf Probe For surfaces with Ra below 200μin
PHT-6005 UCI Portable Hardness Tester w/5kgf Probe For surfaces with Ra below 400μin
PHT-6010 UCI Portable Hardness Tester w/10kgf Probe For surfaces with Ra below 600μin

UCI portable hardness tester w/motorized probe

Model No. Description Application Notes
PHT-6030 UCI Portable Hardness Tester w/.30kgf Probe Best for checking coating layer hardness; Finished thin parts
PHT-6080 UCI Portable Hardness Tester w/.80kgf Probe Best for smooth bearing type surfaces
PHT-6100 UCI Portable Hardness Tester w/1kgf Probe Best for machined surfaces



Hardness Range
Scale Selection


Display Type
HRC: 20.3- 70; HRB: 61-85.6 ; HV: 80-1599; HB: 76-618
Rockwell C (HRC); Rockwell B (HRB); Rockwell A (HRA); Brinell (HB); Vickers (HV); Leeb (HLD) and many more!
+/- 3.0% deviation of average from the reference value of the hardness test block with a minimum of 5 tests
LCD Color Screen w/Backlight, adjustable brightness
Language Selection
Data Logger
Data Memory
English, German, Chinese, Spanish, etc.
Letters, Numerals
2000 groups of measured data ; 20 groups of calibration data
Statistical Software
Data Output
Supplied-can be saved in Word or Excel
USB – cable supplied
Power Supply
Auto Power Off
Rechargeable Lithium Battery: Voltage-4.2V, 4800mAh
5 minutes
Recharging Time
Battery Usage
Approx. 8 hours
Approx. 6 hours (no backlight)
Net Weight(base unit)
Gross Weight
2lbs (w/probe)
12 lbs
Unit Dimensions
Gross Dimensions
7.0 x 3.1 x 1.1” (160x80x30mm)
13.7 x 17.7 x 5.9” (350x450x150mm)

Manual UCI Probe Specifications:

Probe Type/Model PHT-6001 PHT-6002 PHT-6005 PHT-6010
Loading Force 1kgf (10N) 2kg (20N) 5kg (50N) 10kg (98N)
Probe Diameter
Oscillating Rod Diameter
Surface Roughness Requirements
μm=Metric μin= Inch
(Ra<125 μin)
(Ra<197 μin)
Ra<10 μm
(Ra<393 μin)
Ra<15 μm
(Ra<590 μin)
Min weight of test sample
Minimum thickness of sample
0.3kg (.66lbs)
2mm (.08”)
0.3kg (.66lbs)
2mm (.08”)
0.3kg (.66lbs)
2mm (.08”)
0.3kg (.66lbs)
2mm (.08”)

Motorized UCI Probe Specifications:

Probe Type/Model PHT-6030 PHT-6080 PHT-6100
Loading Force .30kg (3N) .80kg (8N) 1kgf (10N)
Probe Diameter 46mm 46mm 46mm
Length 198mm 198mm 198mm
Oscillating Rod Diameter 3.7mm 3.7mm 3.7mm
Surface Roughness Ra<3.2μm Ra<5 μm Ra<8 μm
μm=Metric μin= Inch
(Ra<125 μin) (Ra<197 μin) (Ra<314 μin)
Min weight of test sample 0.3kg (.66lbs) 0.3kg (.66lbs) 0.3kg (.66lbs)
Minimum thickness of sample 2mm (.08”) 2mm (.08”) 2mm (.08”)

Indentation Depth (μm)

Hardness .30kg Motorized .80kg Motorized 1kg Motorized 1kg Manual 2kg Manual 5kg Manual 10kg Manual
800HV 4 5 7 7 10 15 22
600HV 4 5 8 8 11 18 25
500HV 5 6 9 9 12 19 27
300HV 6 8 11 11 16 25 35
100HV 10 13 19 19 27 43 61

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