Mitutoyo Rockwell & Superficial Hardness Tester

Mitutoyo 521 Rockwell Hardness TestersHR-521 Series

Mitutoyo Hardness Testers are known worldwide for their superior quality, performance and dependability. The HR-521 measures both Rockwell hardness and Superficial hardness. With real-time electronic test force control, this tester provides one of the best values in hardness testing today.

The new Mitutoyo HR521 Rockwell and Superficial type hardness tester features real-time electronic force control. Closed-loop control of the primary (Minor) and final (Major) loads permit greater accuracy and repeatability than traditional dead weight, dash-pot controlled testers. The electronic brake mechanism prevents primary force overshoot and automatically starts the test cycle. Testing scales are selected with a push of the LCD touch screen and with a push of the LCD.

PART NO. W810-202-02A
Call toll free for Price Quote - 1-800-876-8587



Features
  • Closed-lop control of testing forces
  • Primary and final forces (loads) are applied with unparalleled accuracy and repeatability
  • Extended indenter arm reaches inside diameters and hard to reach surfaces at eye level, allowing the operator to easily see where the indenter addresses small or hard to reach parts
  • Automatic setting of preliminary test force and application of total test force
  • Indenter escape function allows automatic removal preliminary test force at end of test cycle
  • Touch screen operation with a back-lit LCD graphic display
  • Hardness scale is set automatically via the touch screen
  • Cylindrical and spherical surface compensation
  • Auto conversion to all hardness scales or tensile strength

Specifications

Preliminary Test Force:

  

Rockwell

29.42N (3kgf), 98.07N (10kgf)
588.4N (60kgf), 980.7N (100kgf), 1471N (150kgf)

Rockwell Superficial

147.1N (15kgf), 294.2N (30kgf), 441.3N (45kgf)

Force Control

Automatic control (unloading/duration/unloading) with spring deformation feed back

Console/Display Unit

Touch screen operation with back-lit LCD graphic display

Test Force Selection

By touch screen

Load Duration

0 to 120 sec. (1 sec. step)

Max. specimen depth

Height: 205mm Depth: 150mm from center of indenter shaft

Display Indication Functions

Harness value, Converted hardness value, Test conditions, OK/NG tolerance judgment, statistical processing result.

Rockwell/Rockwell superficial hardness testing. Continuous testing. Cylindrical/spherical surface compensation, data offset.

Hardness conversion (HV, HK, HRA/B/C/D/F/G/15T/30T/45T/15N/30N/45N, HS, HB, HBW, tensile strength).

OK/± NG tolerance judgment, measured data editing, data memory (max 1024 data).

SPC calculation (Number of data, max/min/mean values, range, upper/lower limit values, standard deviation, number passing /defective) Histogram, x-R chart.

Data output

RS-232C, SPC, Centronics

Dimensions (2 x D x H)

9.84inch x 26.38inch x 23.82inch (250 x 670 x 605mm)

Mass

Approx 132 (60kg)