Accretech Surface Roughness Tester
| Brand | Accretech |
|---|---|
| Origin | Japan |
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported Instrument |
| Model | Accretech Surface Roughness Tester |
| Pricing | Available Upon Request |
Overview
The Accretech Surface Roughness Tester is a high-precision, contact-type profilometer engineered for quantitative evaluation of surface topography in accordance with ISO 4287, ISO 4288, ISO 13565, and ASME B46.1 standards. Utilizing a diamond-tipped stylus (typically 2 µm radius, 90° included angle) driven by a precision linear motor, the instrument measures vertical displacement as the probe traverses the sample surface at controlled speeds (0.05–1.0 mm/s). The system captures analog voltage signals proportional to surface height variations, digitizes them at ≥16-bit resolution, and computes standardized roughness parameters—including Ra, Rz, Rq, Rp, Rv, Rt, Rsk, Rku, and Rsm—based on rigorous digital filtering (Gaussian or 2CR phase-corrected) and cutoff wavelength selection (0.08 mm, 0.25 mm, 0.8 mm, or 2.5 mm). Designed for metrology laboratories, precision machining QA/QC environments, and R&D facilities, it delivers traceable, repeatable results compliant with ISO/IEC 17025 requirements when operated under calibrated conditions.
Key Features
- High-stability granite base with vibration-damping air suspension for sub-nanometer vertical resolution
- Motorized Z-axis lift with programmable touchdown force (0.5–4.0 mN) to prevent surface damage on soft materials
- Integrated reference standard calibration block (certified Ra values: 0.05 µm, 0.5 µm, 2.0 µm) traceable to NMIJ (National Metrology Institute of Japan)
- Multi-scan capability: automatic stitching of up to 100 adjacent profiles for extended-length evaluation (e.g., bearing raceways, extruded profiles)
- Real-time profile visualization with adjustable horizontal/vertical scaling, zoom, and overlay comparison against nominal geometry
- Ruggedized probe carriage with automatic tip recognition and wear monitoring via integrated strain gauge feedback
Sample Compatibility & Compliance
The Accretech Roughness Tester accommodates flat, curved (radius ≥3 mm), and inclined surfaces across a wide range of engineering materials—including hardened steel, aluminum alloys, ceramics, polymers, and coated substrates. Sample dimensions are supported up to 300 mm × 200 mm × 150 mm (L × W × H), with optional rotary stage integration for cylindrical part evaluation (diameter range: 5–120 mm). All measurement protocols adhere to international surface metrology standards: ISO 25178-2 (areal parameters), ISO 11562 (filter specification), and JIS B 0601 (Japanese Industrial Standard equivalent to ISO 4287). Data integrity is maintained through GLP-compliant audit trails, electronic signatures, and user-access-level controls aligned with FDA 21 CFR Part 11 requirements when paired with optional validation packages.
Software & Data Management
Equipped with Accretech’s proprietary SURFPAK-V software (v8.x), the system supports full parameter configuration, automated report generation (PDF/Excel), and statistical process control (SPC) charting. Raw profile data is stored in vendor-neutral ASCII format with metadata headers (timestamp, operator ID, calibration status, filter settings). The software includes advanced analysis modules for waviness separation, bearing ratio curve (Abbott-Firestone), material ratio curve, and fractal dimension estimation. Network deployment enables centralized database archiving via SQL Server, while API interfaces support integration into MES and LIMS platforms for automated data routing and nonconformance flagging.
Applications
- Quality assurance of machined surfaces in automotive powertrain components (crankshafts, camshafts, cylinder bores)
- Validation of additive manufacturing build layers and post-processing effectiveness (e.g., shot peening, electropolishing)
- Characterization of tribological surfaces in medical implants (titanium hip stems, CoCr femoral heads)
- Process monitoring of precision grinding, honing, and lapping operations in aerospace turbine blade manufacturing
- Research-grade surface texture correlation studies linking roughness parameters to adhesion, wettability, and fatigue life
FAQ
What stylus tip radius options are available for specialized applications?
Standard configuration uses a 2 µm radius diamond stylus; optional 5 µm and 12.5 µm tips are available for rougher surfaces or low-hardness materials.
Can the system measure surfaces with steep slopes or deep grooves?
Yes—the Z-axis travel range is 10 mm with active slope compensation up to ±45°, and the probe’s lateral clearance allows access to grooves up to 3 mm wide and 2 mm deep.
Is third-party calibration certification provided with delivery?
Each unit ships with an NMIJ-traceable calibration certificate covering vertical linearity, stylus radius verification, and filter cutoff accuracy.
How is software validation handled for regulated industries?
IQ/OQ documentation packages and 21 CFR Part 11 compliance kits—including electronic signature workflows and change control logs—are available upon request.
Does the system support automated pass/fail judgment against tolerance limits?
Yes—user-defined upper/lower specification limits can be assigned per parameter, triggering visual alerts and auto-flagging in exported reports.
