Skip navigation

OMP400 high-accuracy machine probe

For workpiece inspection and job set-up on small to medium machining centres and small multi‑tasking machines.

Unrivalled 3D accuracy and repeatability.

Reliable modulated optical transmission.

Outstanding performance for less scrap and higher profits.

The OMP400 is an ultra-compact, high-accuracy touch probe that offers all the benefits of automated job set-up as well as the ability to measure complex 3D part geometries on CNC machining centres, including multi-tasking machines.

With patented strain gauge technology and interference-resistant optical transmission, the OMP400 provides superior performance found in all Renishaw high-accuracy probes.

The RENGAGE technology family

Reduce scrap, enhance productivity and increase profits – Renishaw machine tool probes can keep your machining process under control.

OMP400 impeller

Superior 3D accuracy

Delivers unrivalled submicron performance when measuring complex 3D shapes and contours.

Ultra-low trigger force

Unmatched low trigger force for delicate work helps eliminate surface and form damage.

Robustly engineered

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

Inspect difficult parts

Improved accuracy when using long and custom styli means difficult parts can be measured with ease.

Meeting current and future performance requirements for our products demands manufacture of ever smaller and more intricate parts that are consistently accurate to within 1 μm. Reliable set-up and measurements are therefore critical to this process and form the basis of our decision to use RENGAGE technology. The Renishaw OMP400 is the only product capable of reliably meeting our needs.

Flann Microwave (UK)

OMP400 and NC4 prismatic part

0.25 µm 2σ

Unidirectional repeatability

±1.00 µm

3D lobing in X, Y and Z

0.06 N

Ultra-low stylus trigger force in XY

Interference-resistant optical transmission

Interference resistance optical transmission

Optical systems require a clear 'line-of-sight' between the probe and receiver, meaning they are most suited to small and medium machines without complex fixturing.

A Renishaw optical transmission system uses infrared technology for communication between the probe and the CNC control.

The probe receives machine control signals and transmits status signals. In operating mode, it transmits probe information, including battery status, to the receiver.

Renishaw systems use modulated optical transmission to reject light interference from other sources and ensure reliable communications.

Systems can be optimised for the needs of smaller machine tools and up to three probes can be used with a single interface.

3D measurement with RENGAGE™ technology

MP250 strain gauge mechanism

RENGAGE™ technology, combines proven silicon strain gauge technology with ultra-compact electronics – allowing on-machine probing systems to achieve outstanding 3D measurement capability and submicron repeatability.

As the strain gauges are independent from the kinematic mechanism, probes with RENGAGE technology have an ultra-low trigger force – providing exceptional measurement accuracy as well eliminating the possibility of surface and form damage.

GoProbe app

System components

OMP400 components

Optical receiver/interface

The optical receiver/interface conveys and processes signals between the inspection probe and the CNC machine controller.

OMP400 inspection probe

A 40 mm diameter touch-trigger inspection probe, equipped with RENGAGE™ technology for high-accuracy measurement.

Styli

A range of solid high modulus carbon fibre styli has been developed for use specifically with strain gauge probes. These styli are designed to minimise pre-travel variation and improve the accuracy of the probe.

Next steps

Contact your local sales representative if you think the OMP400 is right for you.


Find out more

OMP400 user literature

The Renishaw advantage

At Renishaw, we enjoy an excellent reputation for offering strong support to our customers through a network of over 70 service and support offices worldwide.

Get technical support, training and advice or purchase spares and accessories from our well-stocked Online store.