Phase2+ 900-346 Superficial Digital Rockwell Hardness Tester
The Phase2+ 900-346 is a motorized, digital Superficial Rockwell Hardness Tester purpose-built for precision testing of thin materials, case-hardened surfaces, coated parts, and soft metals where standard Rockwell loads would damage or penetrate through the specimen. Engineered to ASTM E18 guidelines, the 900-346 replaces traditional dead-weight loading with a closed-loop load cell system that delivers highly accurate, repeatable force application at 15, 30, and 45 kgf major loads eliminating the mechanical variability and maintenance concerns associated with conventional weight-and-lever designs.
At the core of the 900-346 is a fully automated motorized test cycle controlled by a micro-computer driven touchscreen. The one-touch testing feature handles the complete load and unload sequence without operator intervention, removing the primary source of human error in superficial Rockwell testing and ensuring consistent indentation depth measurement every time. Results are displayed on a high-definition LCD at 0.01 HR resolution, and the system automatically converts readings to Brinell (HB), Vickers (HV), and standard Rockwell scales, reducing the need for manual conversion charts in production and QC environments.
The 900-346 reads all Superficial Rockwell scales HRN and HRT and accommodates N, T, W, X, and Y indentor combinations across all three load levels, making it a single instrument that covers the full spectrum of superficial hardness testing applications. Programmable dwell times, upper/lower limit settings, statistical capabilities, and a test counter add the QC documentation tools that production labs and inspection departments require. USB output to PC enables direct data transfer for records, SPC integration, and reporting. For customers requiring documented traceability, the 900-346 is available with ASTM E18-20 certification, and NIST/ASTM certified test blocks, penetrators, and kits are available as optional accessories.
Key Features
-
Closed-Loop Load Cell Instead of Dead Weights - Direct motorized force application via a precision load cell eliminates the mechanical instability, calibration drift, and maintenance demands of traditional dead-weight systems, delivering extremely accurate and repeatable loading across all three major force levels (15, 30, and 45 kgf).
-
Full Superficial Rockwell Scale Coverage HRN and HRT - Tests all Superficial Rockwell scales including 15N, 30N, 45N, 15T, 30T, 45T, 15W, 30W, 45W, 15X, 30X, 45X, 15Y, 30Y, and 45Y, covering thin sheet metal, case-hardened surfaces, nitrided parts, lightly coated materials, and soft non-ferrous metals that standard Rockwell loads cannot test accurately.
-
Micro-Computer Touchscreen with One-Touch Test Cycle - The fully automated motorized load/unload sequence eliminates operator-induced variability; the intuitive touchscreen interface provides programmable dwell times, scale selection, upper/lower limit settings, test counter, and statistical output all without manual adjustment between tests.
-
0.01 HR Resolution with Auto Conversion to HB, HV, and Regular Rockwell - High-definition LCD readout displays results at 0.01 HR precision with simultaneous automatic conversion to Brinell, Vickers, and standard Rockwell hardness values, eliminating manual lookup tables and reducing transcription errors in QC workflows.
-
USB Output with Statistical Capabilities for QC Documentation - Built-in USB connectivity transfers test data directly to a PC for SPC analysis, records management, and reporting; statistical functions including test counter and configurable pass/fail limits support structured inspection protocols and production quality control requirements.
-
ASTM E18 Compliant and Available with ASTM E18-20 Certification - The 900-346 operates in accordance with ASTM E18 superficial Rockwell testing standards, and is available with full ASTM E18-20 certification for customers in aerospace, automotive, medical device, and defense industries requiring documented instrument traceability.
Specifications
| Specification |
Detail |
| Model |
900-346 |
| Test Type |
Superficial Rockwell |
| Minor Load |
3 kgf |
| Major Load |
15 kgf, 30 kgf, 45 kgf |
| Test Force Application |
Load Cell, Closed Loop |
| Test Force Control |
Motorized (Automated) |
| Superficial Rockwell Scales |
15N, 30N, 45N, 15T, 30T, 45T, 15W, 30W, 45W, 15X, 30X, 45X, 15Y, 30Y, 45Y |
| Automatic Conversions |
HB (Brinell), HV (Vickers), Regular Rockwell Scales |
| Display |
Hi-Definition LCD Digital Readout |
| Resolution |
0.01 HR |
| Vertical Capacity |
7.80" |
| Throat Depth |
5.90" |
| Programmable Functions |
Dwell time, scale selection, upper/lower limits, test counter, statistical output |
| Data Output |
USB to PC |
| Standard Compliance |
ASTM E18 (ASTM E18-20 certification available) |
| Operating Temperature |
50°–95°F (10°C–35°C) |
| Power Supply |
Single phase AC, 110–220V (manual change), 50–60 Hz, 4A |
| Machine Dimensions |
700 × 250 × 600 mm |
| Weight |
220 lbs |
| Superficial Rockwell Scale Reference |
| Scale |
Indenter Type |
Preliminary Force |
Total Force |
Typical Application |
| 15N / 30N / 45N |
Spheroconical Diamond |
29.42 N (3 kgf) |
147.1 / 294.2 / 441.3 N |
Thin case-hardened, nitrided, and carburized surfaces — analogous to A, C, D scales |
| 15T / 30T / 45T |
1/16" Carbide Ball |
29.42 N (3 kgf) |
147.1 / 294.2 / 441.3 N |
Thin sheet metal, strip stock — analogous to B, F, G scales |
| 15W / 30W / 45W |
1/8" Carbide Ball |
29.42 N (3 kgf) |
147.1 / 294.2 / 441.3 N |
Very soft materials |
| 15X / 30X / 45X |
1/4" Carbide Ball |
29.42 N (3 kgf) |
147.1 / 294.2 / 441.3 N |
Very soft materials |
| 15Y / 30Y / 45Y |
1/2" Carbide Ball |
29.42 N (3 kgf) |
147.1 / 294.2 / 441.3 N |
Very soft materials |
Items Included
- Phase2+ 900-346 Superficial Rockwell Hardness Tester (base instrument)
- N-scale Diamond Indenter (spheroconical)
- 1/16" Ball Indenter
- 2 HRN Hardness Test Blocks
- 3 HRT Hardness Test Blocks
- Test Table - 5.87" (150mm)
- Flat Anvil - 2.5" (63mm)
- Standard V-Anvil
- Accessory Case
- Power cable
Phase2+ 900-346 Superficial Digital Rockwell Hardness Tester User Manual
Phase2+ 900-346 Superficial Digital Rockwell Hardness Tester Catalog
