Hexagon CALIPRI C42 Non-Contact Handheld Wheel and Rail Profile Measuring System
| Brand | Hexagon |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | CALIPRI C42 |
| Product Category | Non-Contact Profilometer / Surface Topography Analyzer |
| Operating Principle | Laser Triangulation (Triple-Line Optical Sectioning) |
| Profile Accuracy | ±15 µm |
| Measurement Method | Multi-Angle Rotational Scanning with Real-Time Geometric Compensation |
| Compliance | Designed for EN 15663, UIC 515-4, ISO 10012, and applicable railway maintenance standards |
Overview
The Hexagon CALIPRI C42 is a purpose-engineered, non-contact handheld profilometry system designed specifically for in-situ geometric assessment of railway wheels and rails. Unlike conventional contact-based or fixed-station optical profilers, the CALIPRI C42 employs a patented triple-line laser triangulation architecture—often mischaracterized as white-light interferometry in preliminary documentation but technically grounded in high-resolution optical sectioning via synchronized multi-angle laser line projection and CMOS imaging. This principle enables robust, operator-independent acquisition of full circumferential wheel profiles or longitudinal rail cross-sections without mechanical probing or surface contact. The system operates on a rotational scanning paradigm: the user manually rotates the lightweight sensor around the target component (e.g., wheel tread or rail head), while onboard inertial measurement units (IMUs) and real-time triangulation algorithms dynamically compensate for angular deviation, tilt, and translational drift. The resulting point cloud is reconstructed into a metrologically traceable 2D profile, aligned to standardized reference geometries (e.g., UIC S1002, LM, or XP55). Its deployment spans manufacturing QA, depot maintenance, and field inspection—supporting full compliance with EN 15663 (Railway Applications – Structural Requirements of Railway Vehicle Bodies) and UIC 515-4 (Wheelset Maintenance Standards).
Key Features
- Patented triple-laser optical sectioning technology enabling real-time geometric compensation for operator-induced misalignment
- Handheld, battery-powered operation with integrated 7-inch resistive LCD display for immediate on-device verification
- Simultaneous dual-platform output: live results streamed to ruggedized Android tablet (preloaded with CALIPRI Control software) and embedded sensor display
- Modular software architecture supporting 14+ certified measurement modules—including wheel profile (UIC/LM/XP), diameter, rim thickness, back-to-back distance, brake disc wear, polygonal wear analysis, equivalent conicity, rail wear & grinding guidance, switch geometry, track alignment parameters, spalling/defect quantification, and user-defined arbitrary profile capture
- Traceable calibration via NIST-traceable ceramic calibration plate (included), verified per ISO 10012:2020 (Metrological confirmation system for measuring equipment)
- Onboard audit trail with timestamped measurement logs, operator ID tagging, and configurable digital signature fields compliant with GLP/GMP documentation requirements
Sample Compatibility & Compliance
The CALIPRI C42 is validated for all standard Chinese and international rolling stock wheel profiles (including CRH, CR series, DF, SS, and HX types) and rail sections (e.g., 60 kg/m, 50 kg/m, UIC60, CHN60). It accommodates curved and inclined surfaces typical of turnout zones and gradient tracks without repositioning. All measurement modules undergo independent validation by CNAS-accredited railway metrology laboratories against reference artifacts certified to ISO/IEC 17025. The system supports data export in XML, CSV, and PDF formats compatible with enterprise asset management (EAM) platforms such as SAP PM and Maximo. Regulatory alignment includes EN 13927 (Non-destructive testing – Characterization of surface roughness), ISO 4287 (Geometrical product specifications – Surface texture), and functional safety considerations per EN 50128 (Software for railway control and protection systems).
Software & Data Management
CALIPRI Control v4.x (Android-based) provides intuitive workflow navigation, automated pass/fail evaluation against configurable tolerance bands (per TB/T 2943, UIC 518, or customer-defined limits), and dynamic report generation. Each report embeds raw profile data, deviation heatmaps, statistical summaries (Cp/Cpk, Pp/Ppk), and annotated cross-section overlays. Audit logs record firmware version, calibration status, environmental temperature/humidity (via integrated sensors), and GPS-tagged location metadata where enabled. Data integrity safeguards include AES-256 encryption at rest, role-based access control (RBAC), and optional integration with secure FTP/SFTP servers for centralized archival. For regulated environments, the software supports 21 CFR Part 11-compliant electronic signatures and audit trail review functionality.
Applications
- Production line verification of newly machined wheelsets prior to assembly
- In-service wheel profile degradation monitoring across heavy-haul, metro, and high-speed fleets
- Rail grinding campaign optimization using quantitative wear depth mapping and residual stress zone identification
- Turnout geometry validation including switch rail taper, frog angle, and guard check measurements
- Root cause analysis of polygonal wear through harmonic decomposition of circumference profiles
- Regulatory reporting for national railway administration inspections (e.g., China State Railway Group Co., Ltd. Tier-III audits)
FAQ
Does the CALIPRI C42 require annual recalibration by an external lab?
No—field recalibration is performed using the included ceramic calibration plate and onboard routine; however, biannual verification by an ISO/IEC 17025-accredited laboratory is recommended for GMP-aligned operations.
Can measurement data be integrated into existing CMMS or ERP systems?
Yes—via standardized RESTful API or scheduled CSV/XML exports; integration kits are available for SAP PM, IBM Maximo, and Infor EAM.
Is the system rated for outdoor use in rain or extreme temperatures?
The sensor is IP54-rated for dust and splash resistance; operational range is −10 °C to +50 °C, with optional thermal stabilization kit for sub-zero environments.
How is operator training delivered?
Hexagon-certified instructors provide on-site or virtual workshops covering metrological fundamentals, module configuration, report interpretation, and GLP-compliant documentation practices.
What is the warranty coverage and service response time?
Standard 24-month parts-and-labor warranty; priority support contracts include 4-hour remote diagnostics and 72-hour on-site technician dispatch within mainland China.
