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AT250 Rockwell Tester

The AT-250 Rockwell Tester is useful for many basic testing applications especially testing in challenging conditions: dirty environments, large awkward parts, and inexperienced operators.
  • Not influenced by bending or sample deflection due to the unique test method that monitors the test surface during testing.
  • Simple (one motion), quick (two seconds), easy (any one can test), and accurate (even with challenging applications)
  • The clamping shield permits the measure of big and irregular pieces
  • Wide range of digital capabilities: large test result memory and statistical outputs
  • The test head removes for factory calibration/repairs
  • Operates according to ASTM E18
  • Both the AT-NX and AT-TX test stand have swing-out accessory storage

at250 rockwell tester with clamping

At250 electronics

The AT130 can even test on tapering test surfaces like the other AT Series Rockwell Testing Equipment. Here is the main menu display for the AT250, showing the scale and date at the top, with results, converted test results, and links to the the other setting necessary for successful testing.

SPECIFICATIONS

TEST HEAD MODEL LOADS PRELOAD SCALES
AT 130 DR 60, 100, 150 kg
(Rockwell)
10 kg HR-A, HRB, HRC, HRD
HRE, HRF, HRG, HRH, HRK
62.5, 125, 187.5 kg
(Brinell)
10 kg Equivalent HB30
Brinell values read automatically according to ASTM E103 and converted to equivalent HB30 scale - can also be scoped and converted according to E10.
Optional equivalent scales readouts on request: HB2.5, HB5, HB10
AT 130 DSR 15, 30, 45 kg
(Rockwell)
3 kg HR15N, HR30N, HR45N
HR15T, HR30T, R45T
HR15W, HR30W, HR45W
10, 15.6, 31.2 kg
(Brinell)
3 kg Equivalent HB30
Brinell values read automatically according to ASTM E103 and converted to equivalent HB30 scale - can also be scoped and converted according to E10.
Optional equivalent scales readouts on request: HB2.5, HB5, HB10
New AT-NX test stand AT-TX Rockwell test stand with removable platen/elevating screw Mobile Rockwell Test floor stand, Model CAR Rockwell AT MUR Wall-Mount Test Stand
AT-N Bench Stand AT-T Flexi Stand AT-MUR Mobile stand AT-MUR Wall Stand
TEST STAND MODEL VERTICAL CAPACITY HORIZ.
CAPACITY
WEIGHT FOOTPRINT
SIZE
STAND HEIGHT
AT-TX 270 mm
(420 w/o screw)
220 mm 87 kg 240 x 560 mm 857 mm
AT-NX 215 mm 220 mm 53 kg 200 x 520 mm 620 mm
AT-CAR 750 mm 300 mm 140 kg 250 x 970 mm 1350 mm
AT-MUR 550 mm (adjustment range) 300 mm 90 kg 200 x 700 mm
(not floor standing)
1050 mm
ALL STANDS All stands include the following components & accessories: 1 clamping cap, 1 cover
AT-T and AT-N stands also include: 1 large vee anvil, 1 flat
Standard Accessories
With purchase of a test stand. - delivered in polished wooden box.
Accessories on Request

  • 1 Rockwell conical diamond indenter
  • 1 Rockwell ball indenter 1/16
  • 1 Brinell ball indenter 2,5mm*
  • 1 Rockwell test block
  • 1 Brinell test block*
  • 1 Flat anvil Ø 60mm
  • 1 Flat anvil Ø 10mm
  • 1 Large V-anvil
  • 1 Small V-anvil
  • 1 Plastic cover
  • Spare balls
  • Power supply cable
  • Flat anvil 200 mm diameter
  • V-anvil for rounds 200mm diameter
  • Rockwell ball indenters 1/8", 1/4", 1/2"
  • Brinell ball indenters 5mm
  • C-form extension for measuring internal parts
  • Special clamping systems on customer's request
  • Vise for Jominy test
  • Extended penetrators and penetrator shrouds (25mm - 50mm - 75mm - 100mm)
  • Bench support for hardness tester
  • Anvil for Tapered Flats
  • Anvil for Tapered Rounds

* accessories not included for AT 130 DSR version (Superficial Rockwell)

Ernst Accessories PDF

AT250 Rockwell Tester with advanced electronics

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