Phase2+

The collection carries Phase2+ instruments across four measurement disciplines. Hardness testing is the largest category spanning benchtop Rockwell (analog and digital, standard and superficial, single and twin), load cell Rockwell, fully automated Z-axis Rockwell, Brinell (benchtop and portable), Micro Vickers, Macro Vickers, fully automated Micro Vickers, portable Leeb (dynamic), portable Brinell, UCI ultrasonic, and the PHT-5000 Brinell optical scan system. Surface roughness testing covers three handheld SRG-series gauges. Ultrasonic thickness gauging covers three UTG-series instruments. Accessories include PHT-6000 Series UCI replacement and expansion probes. Together the collection addresses every major material hardness method and key surface measurement needs across aerospace, automotive, medical device, metalworking, and general manufacturing.

Phase2+ offers Rockwell testers across five capability tiers to match different operation types and budget levels. The 900-331 analog series is a professional-grade benchtop Rockwell tester for toolrooms and production labs that need reliable daily Rockwell testing without digital output. The 900-410 digital Rockwell adds a touchscreen, statistical functions, GO/NO-GO limits, and USB output for labs requiring documented results. The 900-415 series brings closed-loop load cell technology and full touch screen automation, a significant accuracy step up over dead-weight designs. The 900-332 tall frame series addresses parts too large for standard throat depth. The twin series (900-375A, 900-387, 900-475, 900-442) consolidates both standard Rockwell and Superficial Rockwell into a single instrument. The 900-442 adds a fully automated Z-axis so the entire test cycle completes with one key press. Matching the right tier to your scale requirements, throughput, and documentation needs is the most important selection decision.

A Twin Rockwell tester performs both standard Rockwell testing (10 kgf minor load; 60/100/150 kgf major loads scales HRA through HRV) and Superficial Rockwell testing (3 kgf minor load; 15/30/45 kgf major loads with scales HR15N through HR45Y) in a single instrument. The need for both arises when a lab or QC operation tests materials requiring different Rockwell methods for example, through-hardened tool steel (tested on HRC scale) and thin case-hardened, nitrided, or coated surfaces (tested on HR15N or HR30T superficial scales) within the same production program. Without a twin tester, two separate benchtop instruments are required, doubling bench space, capital cost, and calibration burden. Phase2+ twin testers cover all 30 Rockwell and Superficial Rockwell scales in one frame, with automatic conversion to HB, HV, and HK on every reading.

The 900-442's Auto-Z Axis automatically lifts the sample to approach the indenter and completes the full test cycle (pre-load, major load application, dwell, unload, and result display) with a single press of the START key, regardless of the sample's size, height, or position on the stage. This eliminates the last remaining manual step in the Rockwell test cycle: the hand wheel elevation of the anvil. Manual wheel-lift introduces operator variability because the rate, smoothness, and consistency of sample approach can affect the pre-load contact condition and therefore the final reading. The Auto-Z removes this variable entirely, delivering higher between-operator and between-shift repeatability than either manual wheel-lift or dead-weight designs. Combined with closed-loop load cell force accuracy of ±0.5%, the 900-442 represents Phase2+'s highest-precision automated production Rockwell platform.

Conventional Rockwell testers apply test force using dead weights, physical masses suspended on levers that act on the indenter spindle. This design is susceptible to mechanical wear, friction variability in the lever system, and sensitivity to vibration and installation level. Load cell testers replace the dead-weight system with a precision electronic force sensor in a closed-loop control circuit that actively monitors and corrects the applied force throughout every test cycle. Phase2+'s 900-367 Rockwell and 900-355A Brinell load cell testers achieve ±0.5% force accuracy across all test loads delivering the consistent, repeatable force application that demanding applications in aerospace (NADCAP), automotive (IATF 16949), and medical devices (ISO 13485) require. The electronic control also enables programmable dwell times, automatic scale conversion, statistical data collection, and GO/NO-GO limit output that dead-weight testers cannot support.

Ultrasonic Contact Impedance (UCI) testing works by pressing a Vickers diamond pyramid vibrating at ultrasonic frequency into the material surface. The hardness is derived from the change in resonant frequency caused by the indentation (smaller indentation means harder material). UCI's primary advantage over Leeb testing is the ability to test small, thin, or lightweight parts where the impact force of a Leeb device would cause the part to move, ring, or be damaged such as small gears, springs, thin sheet metal, delicate aerospace components, and weld zones. Phase2+ offers five UCI instruments: the PHT-6001 (1kg manual probe), PHT-6011 (long 1kg manual probe for deep-access), PHT-6030/6080 (manual probes, selectable), and PHT-6100 (motorized probe for consistent, operator-independent load application). The motorized probe of the PHT-6100 eliminates the single largest variable in UCI testing.

Phase2+ carries a comprehensive Leeb portable tester lineup organized by capability tier and impact device type. The PHT-1700/1740/1750 series covers the entry/mid portable tier: the PHT-1700 uses a D impact device (the industry-standard probe for general metalwork), the PHT-1740 uses a DL device (smaller diameter probe for narrow geometries), and the PHT-1750 uses a G device (for large, coarse-grained materials like castings and large forgings requiring a larger impact body). The PHT-1800/1840/1850 series steps up in capability, with the 1840 (DL device) and 1850 (G device) extending the range covered by each probe type. The PHT-1900 is the flagship portable Leeb tester with the broadest material scale coverage and most advanced display. The PHT-3300 is an all-in-one integrated compact unit, while the PHT-3500 adds a built-in printer for on-site documentation without a computer. The PHT-2100 is a rugged, purpose-built portable for demanding field environments.

All three are handheld portable surface roughness testers, but they serve progressively more demanding applications. The SRG-2200 is Phase2+'s next-generation mini surface roughness tester are compact, battery-powered, with an integrated stylus for fast on-machine or bench surface finish checks in production environments. The SRG-4000 steps up to an external stylus configuration, expanding access to surfaces that the SRG-2200's integrated stylus cannot reach in recesses, bores, and complex geometries while adding a broader parameter set and higher-resolution display. The SRG-4600 is Phase2+'s flagship portable roughness tester, combining the external stylus architecture of the SRG-4000 with the highest parameter count, widest measurement range, and most advanced display and data output capabilities in the Phase2+ roughness portfolio. Each model measures Ra and a range of ISO surface texture parameters; the SRG-4600 measures the most comprehensive parameter set, making it best suited for applications where the surface finish specification demands reporting beyond basic Ra.

All three are handheld, battery-powered ultrasonic thickness gauges for measuring material wall thickness from single-side access without requiring both surfaces to be reachable. They differ in capability level and scan mode. The UTG-2900 measures substrate thickness through an intact coating in Echo-Echo (E-E) mode without removing the coating first, making it the right choice for inspecting painted, coated, or lined structures where removal of the coating for measurement is impractical or prohibited. The UTG-2675 is Phase2+'s high-resolution variant, offering finer measurement resolution for applications requiring tighter uncertainty on thin sections or precision-manufactured components. The UTG-4000 is the most advanced of the three, adding A-Scan and B-Scan display capability while the A-Scan shows the waveform for expert interpretation and verification of the return echo, the B-Scan generates a cross-sectional corrosion map of the material thickness along a scan path, essential for pipeline inspection, pressure vessel assessment, and structural integrity surveys.

All Phase2+ orders ship free to the continental USA, backed by a best-price guarantee. A 30-day return policy and Affirm financing at checkout are available. Government agencies, defense contractors, and regulated manufacturers can submit an RFQ through the dedicated Government RFQ page (DUNS: 13-715-2209, CAGE: 15F67). Phase2+ hardness testers in particular involve significant application-specific selection decisions like testing method, load range, frame type, degree of automation, standards compliance documentation, and whether load cell or dead-weight force application is required by the quality system. Gustavo personally reviews every order and strongly encourages buyers to call or text 617-398-7852 before purchasing, Monday through Friday, 8am–5pm EST, to ensure the right instrument for the application and the quality system it must satisfy.