Taylor Hobson Talyrond 500 Series Roundness and Cylindricity Measuring Instrument

Overview

The Taylor Hobson Talyrond 500 Series is a high-precision, multi-functional geometric metrology system engineered for comprehensive roundness, cylindricity, surface roughness, and contour measurement in demanding production and calibration environments. Built upon a fully CNC-controlled platform, it implements a true three-axis (rotational, vertical, and horizontal) metrological reference framework—mirroring the kinematic structure of precision lathes and cylindrical grinding machines. This architecture enables direct correlation between manufacturing motion paths and measurement trajectories, facilitating process-critical traceability from machine tool behavior to part geometry. The instrument employs an ultra-stiff, FEA-optimized granite base and a high-purity air-bearing rotary spindle with sub-nanoradian angular stability, ensuring minimal thermal drift and mechanical hysteresis. Linear axes utilize low-noise, preloaded air slides with nanometer-level positioning repeatability, collectively achieving exceptional motion fidelity essential for ISO 1101–compliant form analysis.

Key Features

• 100% CNC automation: Fully integrated auto-centering, auto-leveling, and sensor calibration routines executed without manual intervention
• Multi-measurement capability: Simultaneous acquisition and synchronized evaluation of roundness, cylindricity, straightness, taper, profile, and surface roughness (per ISO 4287/ISO 25178) on a single setup
• 3D cylindrical surface mapping: Capable of acquiring and reconstructing inner and outer cylindrical surfaces—including bores, shafts, and stepped geometries—with axial and radial data fusion
• Air-bearing spindle system: High-accuracy rotating axis with <0.01 µm radial error motion and thermal mass stabilization for long-term drift control
• Low-noise linear axes: Precision air slide stages with active vibration damping and real-time position feedback via high-resolution optical encoders
• Traceable metrology foundation: Compliant with ISO/IEC 17025 requirements; supports calibration using NIST-traceable artifacts and certified reference standards

Sample Compatibility & Compliance

The Talyrond 500 accommodates workpieces ranging from small precision bearings (<5 mm diameter) to large turbine components (up to 600 mm height and 500 mm diameter), with optional extended-height columns and custom fixturing. It meets international geometric tolerance standards including ISO 1101 (Geometrical product specifications), ISO 12181 (Roundness), ISO 12180 (Cylindricity), and ASME Y14.5. All measurement algorithms are validated per ISO 16610 (filtration) and ISO 16611 (roughness parameter calculation). The system’s hardware and software architecture support GLP/GMP-aligned workflows, including user access control, audit trail logging, and electronic signature capabilities compliant with FDA 21 CFR Part 11 when configured with certified software modules.

Software & Data Management

Operating on Taylor Hobson’s proprietary Form Talysurf software, the Talyrond 500 delivers unified data handling across all measurement modes. The software provides full parametric reporting (GD&T-compliant), statistical process control (SPC) integration via OPC UA, and automated report generation in PDF, XML, or CSV formats. Measurement data is stored in a structured SQLite database with time-stamped metadata, version-controlled calibration records, and configurable export protocols for MES/ERP systems. Raw point-cloud data (XYZI format) is accessible for third-party analysis, and all filter settings—including Gaussian, Spline, and Robust filters—are fully documented and repeatable per ISO 16610-21. Software updates follow a formal change control process aligned with ISO 9001 and IEC 62304.

Applications

The Talyrond 500 serves critical quality assurance functions across aerospace (turbine shafts, bearing races), medical device manufacturing (orthopedic implants, dental abutments), automotive powertrain (crankshafts, camshafts, fuel injector nozzles), and precision optics (lens mounts, alignment sleeves). Its ability to replicate machine tool kinematics makes it indispensable for process validation, tool wear monitoring, and root-cause analysis of form deviations. In metrology laboratories, it functions as a reference standard for verifying coordinate measuring machines (CMMs) and other form instruments. Its dual capability for both production-floor deployment and accredited calibration lab use ensures continuity across the entire quality chain—from incoming inspection to final release testing.

FAQ

What standards does the Talyrond 500 comply with for roundness and cylindricity measurement?
It conforms to ISO 12181, ISO 12180, ISO 1101, and ASME Y14.5 for geometric tolerancing, with algorithmic compliance verified against PTB and NPL reference datasets.
Can the system measure internal cylindrical surfaces such as bores?
Yes—using dedicated retractable stylus arms and bore-specific probe configurations, it acquires full 3D topography of internal diameters down to 3 mm, with axial scanning up to 300 mm.
Is the software qualified for regulated industries like pharmaceuticals or medical devices?
When deployed with Form Talysurf IQ software and configured per customer validation protocols, it supports 21 CFR Part 11 compliance, including electronic signatures, audit trails, and role-based permissions.
How is thermal stability maintained during extended measurement cycles?
The granite base incorporates embedded temperature sensors feeding into real-time compensation algorithms; ambient temperature control within ±0.5°C is recommended per ISO 230-2.
Does the system support automated pass/fail decision logic based on GD&T tolerances?
Yes—tolerance zones are defined graphically or via import from CAD models, and results are evaluated in real time with configurable alarms and SPC charting.