Renishaw has announced the market introduction of its new RMP400S multi-purpose machine tool probe at IMTS 2026 and AMB 2026. Combining touch-trigger probing, scanning, and surface finish verification into a single machine tool probe, the RMP400S is the company’s most versatile spindle probe to date and sets a new standard for versatility in on-machine probing. The probe will be showcased in action from 14-19 September 2026 at IMTS 2026 and from 15-19 September 2026 at AMB 2026.
The RMP400S features Renishaw’s patented RENGAGE™ strain gauge technology for high-accuracy probing. It delivers a repeatability of 0.25 μm (2σ) and can verify surface finishes up to Ra 0.5 μm. Advancements in the technology enable lower trigger forces, support precise scanning measurements, and help reduce part marking.
The RMP400S enhances on-machine measurement capabilities by delivering high-density scanning data for both form and surface finish verification. Its advanced functionality supports improved in-process control directly on the machine, helping engineers streamline inspection workflows.
Justin Walford, Principal Product Marketing Engineer for Renishaw’s Machine Tool Products Division, explains what this means for manufacturers:
“High-density scanning provides users with comprehensive data for enhanced traceability and reliability in manufacturing. This includes run-out, form, flatness, roughness and waviness measurements, and delivers precise and accurate measurements of the workpiece.”
He continues, “Surface finish verification is also integrated into the RMP400S probe’s scanning ability. This gives access to crucial information about part finish, helping to identify potential issues before they become problematic.”
Walford concludes, “For some applications such as bore/boss machining, the impressive capabilities of touch-trigger, scanning, and surface inspection can even be achieved with a single probe and stylus combination.”
RMP400S is programmed with Renishaw’s world-leading Inspection Plus software, which has a well-established user acceptance and long-standing presence in the global market. Enhanced to include scanning, it provides a wide range of probing cycles. This allows RMP400S to act as a direct replacement for existing Renishaw touch-trigger probes.
Compatibility with Inspection Plus means that the RMP400S can also be programmed using Renishaw’s Set and Inspect software. This enables simple programming through an intuitive user interface, without the need for extensive G-code knowledge. Inspection Plus also ensures compatibility with reporting tools including Renishaw Central – Renishaw’s smart manufacturing data platform – allowing for continued use of existing reporting and workflow processes.
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