qs-logo
Home Rockwell Tester Brinell Tester Micro Hardness Tester Custom/Automatic Calibration/Service Contact

Ernst Rockwell
Digital Portable Hardness Tester

These two models of portable Rockwell tester use a Rockwell-type test method (preload, full load, and depth measurement back at the preload) to create a digital Rockwell test readout of Rockwell hardness in HRC, HRB and other Rockwell scales:
  • Quick press-and-read operation
  • Digital readout in many scales
  • Simple (one motion), quick (two seconds - Computest), easy (any one can test), and accurate (only requiring minutes of training)
  • Used worldwide by thousands of companies over multiple generations of the equipment (Computest)
  • Meets ASTM B724 (Computest)
  • Sophisticated Electronics

The Computest can be used in a stand to test small parts

Both testers can be used in any orientation

The Dynatest can test Rockwell as an upside-down hardness tester

The Computest can also be used in a small test stand for hardness testing of very small parts with advantages over a standard Rockwell due to the small indentation. An important feature for a portable - sideways and upside-down hardness testing. Either tester can be used in any orientation. The Dynatest is a complete Rockwell tester packed into a portable. It applies the Rockwell technique of preload, full load, measure back at preload - all in an instant

The Computest digital portable hardness tester uses a light load applied in a Rockwell style by the operator to the top of the tester in one smooth motion. It must be used on smooth machine-finish metals due to the small indentation. It can also be used on very thin metals for the same reason - thinner than the lightest superficial hardness testing. When used with the test stand, parts are clamped in place in the stand during the test and the very small indentation can test nearer the edge that a standard Rockwell.

The Dynatest digital full-load portable Rockwell tests using a heavy load in the Regular-Rockwell method range, which is applied at high speed after cocking the tester and being triggered by the user. This tester is very useful for testing in the field especially on applications that other portable testers are unable to do like railroad track where the heavier load provides a more accurate and repeatable test result on the uneven test surface.

Both testers have advanced digital capabilities for dispplay, storing test results for later printout, scale conversions, etc. See the PDF for more detail

COMPUTEST SPECIFICATIONS

Model:
Working principle:
Readout:
Test load:
Preload:
Hardness scales:


Electronics:
Memory size:
Functions availability:
Output:
Power supply:


Operation temperature:
Gross weight of the instrument
with wooden case:
Dimensions of the case:
Test head:
Electronics:
Standard:
Accuracy:

COMPUTEST SC
Rockwell-type method
Digital on LCD backlit display 80x30mm
49N (5 kg)
11.8 N (1.2 kg)
HRC 0-70, HRB 0-120, HB30 80-700
N/mm2 266-2180, Kg/mm2 27-222, HV 35-1080
Other scales on request
16 bit microprocessor, able to connect to peripherals
Up to 1000 values can be saved in 8 different files
Scale selection, tolerances, language select, statistics, load time
RS 232 C
115 VAG, 50/60 Hz (on request 230 VAG, 50/60 Hz)
or eight-hour continuous operation rechargeable battery(included) for portble operation
0-50" C
5.9 kg

40x332x14 cm
0.67 kg
0.780 kg

ASTM B724
+/- 1 point Rockwell C range, +/-1.5 points Rockwell B range on smooth surfaces

DYNATEST SPECIFICATIONS

Model:
Working principle:
Readout:
Test load:
Preload:
Hardness scales


Electronics:
Memory size:
Functions availability:
Output:
Power supply:


Operation temperature:
Gross weight of the instrument
with wooden case:
Dimensions of the case:
Mechanical unit:
Electronic box:
Standards

DYNATEST SG
Rockwell-type method but in a portable tester
Digital on LCD backlit display 80x30mm
more than 980 N (100 kg)
68 N (7 kg)
HRC.1 HB30 (diamond), 2 HB30 (1/16" ball)
N/mm2. kg/mm2, DPTH (depth)
Other scales on request
16 bit microprocessor, able to connect to peripherals
Up to 1000 values can be saved in 8 different files
Scale selection, tolerances, language selection, and statistics
RS 232
115 VAG, 50/60 Hz (on request 230 VAG, 50/60 Hz)
or eight-hour continuous operation rechargeable battery(included) for portable operation
0-50" C
10.650 kg

44x40x16 cm
1.900 kg
0.780 kg
CE conformity
DIN 50157 conformity

Computest Accessories Dynatest Accessories

  • Hardness tester In traditional polished wooden box complete with microprocessor electronic readout
  • 1 Battery charger
  • 3 Test blocks (non certified)
  • 2 Anvils for flats
  • 1 Anvil for cylinders
  • 1 Extension 50mm for ID testing
  • 1 Calibration certificate
  • Operation manual

OPTIONAL

  • Software for statistics
  • Scale HB 10 - HB5 for light metal alloys
    and all optional scales on request
  • 80 Column printer
  • Printer cable
  • Stand
  • Magnetic support
  • battery charger
  • hard metal ball penetrator
  • test block (HRC. HB30)
  • 3 anvils for flat surfaces
  • anvil for cylindrical surfaces
  • template

OPTIONAL

  • 80-column printer
  • Additional hardness scales:
  • HB10/HB5 for light alloys.
  • HB30 for cast iron,
  • HV/HRB
  • SHORE/D
  • special anvils on request

Computest portable Rockwell tester with Digital Display

The Computest

Download PDF
Get a Quote


Dynatest Portable Rockwell Tester with Digital Display

The Dynatest

Download PDF
Get a Quote

 


Quality Solutions footer logo
Over Half a Century in Hardness Testers and Quality Control

Contact UsAbout Quality SolutionsHome Page


© Quality Solutions 2011, All Rights Reserved. All information is subject to change. Privacy