High-accuracy touch probes for CNC machines

For unbeatable measurement performance, our high-accuracy touch probes for CNC machines offer the best possible in-cycle process controls. With ultra-low trigger forces and excellent repeatability, part setting and inspection can be performed with optimal results.

High-accuracy probing for peak performance

Engineered for over a decade, our high-accuracy touch probes deliver unparalleled performance and capabilities.

Suitable for a wide range of applications, our high-accuracy probes automate in-cycle setting and inspecting of workpieces, for fast and highly accurate machined parts.

Renishaw high-accuracy probes deliver superior measurement performance by utilising advanced probing mechanisms, with either RENGAGE™ technology or micro-kinematics. These technologies enhance and ensure first-time-pass machining of parts, including complex components with soft, flexible and intricate 3D shapes.

Constructed from high-grade materials, Renishaw machine tool probes are robust and reliable. They can withstand even the harshest environments, including shock, vibration, extreme temperatures, and continual liquid immersion.

Why use a probe?

Probing is essential when ensuring precision throughout machining processes. As a manufacturer, maintaining consistent product quality and maximising output is vital. That is why implementing quality control processes such as probing are incredibly beneficial.

Whether there is a need to streamline production by automating part setup and inspection, reduce machining errors, or a desire to reduce waste. Probing not only saves time and scrappage costs, it also boosts productivity by minimising downtime with automated tooling offsets and faster job setup. These benefits make each probe a great investment with rapid payback, enabling manufacturers to focus on quality, productivity, and profitability.

Key benefits of high-accuracy probes

Ultra-low trigger force

Eliminate surface and form damage when inspecting delicate workpieces.

Superior 3D accuracy

Unrivalled, submicron performance even when measuring complex 3D shapes and contours.

Robustly engineered

Providing reliable measurement and long service life, even in the harshest environments.

Precision measurement

Easily adhere to the tightest machining tolerances, first time and every time.

We are happy with the accuracy of the RMP600 and the consequent reduction in scrap parts further down the production line. These are large, expensive components and we can use the probe to identify and avoid errors.

Flann Microwave (UK)

Find the perfect high-accuracy touch probe for your manufacturing operations

Explore our range of high-accuracy probes, whether you need radio, optical, or hard-wired transmission. Each probe is designed for precision and ease of use in various manufacturing settings, and is compatible with machine tool probing software.

High-accuracy radio transmission probes

Radio transmission probes are ideal in complex or larger machines and installations, where the spindle probe is not within line-of-sight of the receiver.

In environments with high-density radio frequency (RF) traffic, Renishaw radio probes use patented FHSS (Frequency-hopping spread spectrum) technology, enabling the probe to jump from channel to channel – avoiding interference and transmission dead spots.

RMP400

RMP600

The ultra-compact RMP400 measures just 40 mm in diameter, whilst the compact RMP600 measures 63 mm. Both probes offer an exceptionally reliable probing solution for larger machines or installations.

RENGAGE™ technology combined with radio transmission for hassle free probing.
Operating range of up to 15 m.
Unidirectional repeatability of 0.25 µm 2σ.

RMP24-micro

As the world's smallest wireless probe, RMP24-micro has been designed for micro precision applications typically found in medical, dental, electronics, jewellery and watchmaking industries. It is the ideal probing solution for machines with small working envelopes, machining high-value parts with delicate surfaces.

Unrivalled repeatability of 0.35 µm 2σ for a probe so small (24 mm in diameter and 31.4 mm in length).
Ultra-low trigger forces – with an XY trigger force of only 0.08 N and 0.75 N in Z.
Maximum power efficiency with QE series transmission protocol.

High-accuracy optical transmission probes

Optical probes use modulated optical technology, optimised to work within areas containing other light sources; rejecting light interference from external sources and ensuring reliable communications.

Transmitting at a distance up to six metres, optical transmission is a secure, robust and well-proven transmission method.

OMP400

OMP600

Measuring just 40 mm in diameter, the ultra-compact OMP400 probe is ideal for users of small to medium machining centres. Whilst the compact OMP600, 63 mm in diameter, is suitable for all sizes of machining centres.

Proven and patented with RENGAGE technology.
Secure and robust infrared transmission with operating range up to 5 m (OMP400) and 6 m (OMP600).
Unidirectional repeatability of 0.25 µm 2σ.

High-accuracy hard-wired probe

MP250 is a hard-wired probe best suited for particle-laden environments commonly found in grinding applications. For high vibration applications, the probe can be switched to a more vibration-resistant configuration.

MP250

Designed for a minimal footprint and maximum capability, the miniature and versatile MP250 is just 25 mm in diameter and 36 mm in length – providing process control even in the smallest and most harsh machining environments.

RENGAGE technology for exceptionally reliable measurement over a long service life.
Battery and interference free with hard-wired connection as standard.
Unidirectional repeatability of 0.25 µm 2σ.

Increase probing flexibility by pairing the MP250 with the HPGA tool setting arm - a highly repeatable, automated rotary platform, configured to move the probe in and out of the working environment in between cycles.

What is the right probe for my application?

View our high-accuracy probe range and their suitability depending on application. If you would like further assistance, contact your local sales team.

High-accuracy probe comparison matrix

	Recommended machine type	Unidirectional repeatability	Transmission type	Compatible interfaces*	Recommended stylus length
RMP24-micro	Micro-machines and machines with small working envelopes	0.35 µm (14 µin) 2σ	FHSS Radio	RMI-QE	Up to 30 mm
RMP400	Small to medium machining centres and small multi-tasking machines	0.25 µm (10 µin) 2σ	FHSS Radio	RMI-Q or RMI-QE**	Up to 200 mm
RMP600	All sizes of multi-tasking machines, machining centres and gantry machines	0.25 µm (10 µin) 2σ	FHSS Radio	RMI-Q or RMI-QE**	Up to 200 mm
OMP400	Small to medium machining centres and small multi-tasking machines	0.25 µm (10 µin) 2σ	Optical	OMI-2, OMI-2T, OMI-2H, OMM-2C with OSI/OSI-D, OMM-2 with OSI/OSI-D	Up to 200 mm
OMP600	All sizes of machining centres and small to medium multi-tasking machines	0.25 µm (10 µin) 2σ	Optical	OMI-2, OMI-2T, OMI-2H, OMM-2C with OSI/OSI-D, OMM-2 with OSI/OSI-D	Up to 200 mm
MP250	CNC grinding machines	0.25 µm (10 µin) 2σ	Hard-wired	HSI or HSI-C	Up to 100 mm

*all Renishaw machine tool probes require the purchase of a compatible interface.

** RMI-QE interface is only compatible with QE series probes.

Accurate probe calibration

Calibrate your probe with confidence using ACS-1, and eliminate the need for manual processes that require precision gauge blocks or slip gauges.

ACS-1 advanced calibration sphere

User on CNC machine with Set and inspect on controller and Rengage probe in machine

Probing made simple with intuitive software

Investing in probing technology enhances your in-process control and establishes a solid process foundation.

Renishaw ensures a seamless user experience when using probes. A comprehensive range of macro cycles and machine tool apps allows for quick and intuitive programming of measurement cycles

Machine tool probing software

All-round process control

By measuring a workpiece in-machine with a probe, automated tooling offsets can be made as machining errors occur.

Further enhance your process control by measuring tools as they are setup, to ensure the first cut is right first time, and every time.

Renishaw's range of in-machine tool setters and broken tool detectors can be used in conjunction with our high-accuracy spindle probes to achieve maximum productivity and quality control.

Tool setters and broken tool detectors

OMP60 with OTS contact tool setter on CNC machine bed

Downloads

Brochures

Brochure: High-accuracy machine tool probes with RENGAGE™ technology

Brochure: High-accuracy machine tool probes with RENGAGE™ technology

With unbeatable 3D measurement capability and submicron repeatability, Renishaw's family of machine tool probes with RENGAGE™ technology combines precise silicon strain gauge sensors with ultra-compact electronics to deliver superior performance.
[3.1MB]
Brochure: Benchmarking test of RENGAGE™ high-accuracy touch probe

Brochure: Benchmarking test of RENGAGE™ high-accuracy touch probe

Decades of continuous investment in development enables Renishaw to provide high-quality products with leading-edge performance. This guide compares probes with RENGAGE™ technology with those of conventional probe design and illustrates RENGAGE™ technology’s superior performance capabilities based upon ‘real world’ tests.
[2.6MB]
Brochure: Next generation probing systems for machine tools - QE series

Brochure: Next generation probing systems for machine tools - QE series

The QE series comprises an ultra-compact RMI-QE radio interface with a communication protocol future-proofed to support a new generation of Renishaw sensors and smart devices.
[1.6MB]