Renishaw Tool Probe

Updated: 2026-08-04

Overview

The Renishaw tool setter represents industry-leading technology for CNC machine tool measurement and calibration. These precision instruments are engineered to automate the traditionally manual process of tool length and diameter measurement, significantly reducing machine setup times while improving accuracy. As a subsidiary of the UK-based Renishaw plc, these tool setters inherit decades of metrology expertise, featuring robust designs that withstand harsh machining environments. They integrate seamlessly with most CNC controls through standardized interfaces, making them versatile solutions for workshops implementing Industry 4.0 practices.

Structure and Working Principle

A Renishaw tool setter typically consists of a hardened stainless steel base housing a precision measuring mechanism, protected by a tungsten carbide contact surface. The wireless models contain a battery-powered transmitter that sends measurement signals to the receiver unit mounted on the machine. The working principle involves the machine bringing the rotating tool into gentle contact with the setter's trigger mechanism. When contact occurs, the device generates an electrical signal that the CNC system uses to calculate exact tool offsets. Advanced models like the TS27R incorporate radio transmission for interference-free operation in electrically noisy environments.

Key Features

Renishaw tool setters distinguish themselves through exceptional metrological performance, with typical repeatability of ±1 micron or better. The IPX8 waterproof rating allows reliable operation even when submerged in coolant, while the robust tungsten carbide contact surfaces withstand millions of measurement cycles. Modern variants feature adaptive triggering technology that automatically adjusts for different tool weights and speeds. Wireless models eliminate cabling issues, and some high-end versions include temperature compensation to maintain accuracy across varying shop floor conditions. The OTS (Optical Tool Setter) series offers non-contact measurement for delicate tools.

Application Areas

These tool setters find extensive use in precision machining sectors requiring tight tolerances. Aerospace manufacturers employ them for turbine blade production, where tool wear compensation is critical. Automotive suppliers rely on them for high-volume engine component machining with minimal manual intervention. In mold and die making, the devices ensure consistent surface finishes across long production runs. Medical device manufacturers benefit from the ability to measure micro-tools accurately. The technology also supports lights-out manufacturing by enabling automated tool checking during unmanned operation.

Maintenance and Precautions

Proper maintenance ensures long-term accuracy. Regularly clean the contact surface using recommended solvents to remove coolant residues or metal chips. Perform periodic verification checks using master tools to confirm measurement consistency. Avoid exposing the setter to excessive vibration or mechanical shock. When installing, ensure proper leveling relative to the machine's axes. For wireless models, monitor battery levels and replace them proactively to prevent measurement interruptions. Always follow Renishaw's recommended calibration procedures, typically every 6-12 months depending on usage intensity.

B2B Procurement Guide

When sourcing Renishaw tool setters, first verify compatibility with your CNC machine's control system and available mounting options. Consider future needs - modular systems allow later expansion with additional measurement functions like broken tool detection. Evaluate total cost of ownership, including calibration services and potential productivity gains. For harsh environments, prioritize models with higher ingress protection ratings. Procurement through authorized distributors ensures genuine products with full manufacturer support. Lead times for specialized configurations may extend to 4-6 weeks, so plan purchases accordingly.