Dial Gauge Superficial Rockwell Hardness Testing Machine With
Adjustable Dwell Time
Brief Introduction:
iRock-434M Motorized superficial Rockwell hardness tester adopts
the mechanism of automatic loading and unloading of the test force,
the test force is regulated by the load-change hand wheel.
Dwell time can be preset, except setting zero to dial, there is no
man-made error. The instrument has high sensitivity and stability.
Application range:
Suitable for surface quenched steel, surface heat treating and
chemical treating materials, copper alloy, aluminum alloy, sheet,
zinc layers, chrome layers, tin layers, bearing steel and cold and
hard casting etc.
Technical Specifications:
| Model | iRock-434M |
| Initial Test Force | 3kgf (29.42N) |
| Total Test Force | 15kgf (147.1N), 30kgf (294.2N), 45kgf (441.3N) |
| Indenter | Diamond Rockwell Indenter, ф1.588mmBall Indenter |
| Loading Method | Automatic (Loading/Dwell/Unloading) |
| Hardness Reading | Dial |
| Resolution | 0.5HR |
| Dwell Time | 2~60s |
| Max. Height of Specimen | 175mm |
| Throat | 165mm |
| Power Supply | AC220V/50Hz/1Ph |
| Execute Standard | ISO 6508, ASTM E-18, JIS Z2245, GB/T 230.2 |
| Dimension | 520×215×700mm, Packing Dimension: 650×370×950mm |
| Weight | Net Weight: 73kg, Gross Weight: 100kg |
Packing List:
| Name | Qty | Name | Qty |
| Instrument Main Body | 1 set | Diamond Rockwell Indenter | 1 pc |
| ф1.588mmBall Indenter | 1 pc | Middle Plane Test Table | 1 pc |
| Large Plane Test Table | 1 pc | V-shaped Test Table | 1 pc |
| Hardness Block 70~85 HR30T | 1 pc | Hardness Block 80~90 HR15N | 1 pc |
| Hardness Block 65~80 HR30N | 1 pc | Weight A, B, C | 3 pcs |
| Power Cable | 1 pc | Fuse 2A | 2 pcs |
| Level | 1 pc | Horizontal Regulating Screw | 4 pcs |
| Screw Driver | 1 pc | Spanner | 1 pc |
| Anti-dust Cover | 1 pc | Usage Instruction Manual | 1 copy |
The Rockwell test consists of measuring the additional depth to
which a carbide ball or diamond penetrator is forced by a heavy
(major) load beyond the depth of a previously applied light (minor)
load (SET point).
The minor load is applied first and a SET position is established
on the dial gauge or displacement sensor of the Rockwell tester.
Then the major load is applied. Without moving the piece being
tested, the major load is removed and, with the minor load still
applied, the Rockwell hardness number is automatically indicated on
the dial gauge or digital display.
The diamond penetrator is used for testing materials such as
hardened steels and cemented carbides. The carbide ball
penetrators, available with 1/16 inch, 1/8 inch, 1/4 inch, and 1/2
inch diameter, are used when testing materials such as steel-copper
alloys, aluminum and plastics to name a few.
Rockwell testing falls into two categories: Regular Rockwell
testing (e.g., C and B scales) and Rockwell superficial testing
(e.g., 30 N and 30 T scales).
High Rockwell hardness numbers represent hard materials and low
numbers soft materials.
