The SP25M is two sensors in one and it has unrivaled flexibility due to the system’s modularity. Users can scan for form, position, and size but also take high accuracy discrete points by using a dedicated scanning module or, alternatively, use an adapter to carry the TP20 range of touch-trigger probe modules.

The SP25M’s compact size and autojoint mounting makes it compatible with PH10M and PH6M probe heads. It can also be mounted on an extension bar, providing excellent reach and access to part features.

Five scanning modules feature a pivoting design which delivers exceptional dynamic performance and optimized high accuracy performance over the entire stylus range from 20mm to 400 mm effective working length (EWL).

A range of stylus holders (SH25-1/2/3/4) is available to offer straight stylus carrying on the existing module range. For superior performance with crank/star/non-straight styli the use of the SM25-5 module and SH25-5 stylus holder, is recommended.

Module and stylus changing is enabled using the FCR25 flexible change rack, which can be located either on the CMM bed, or on the MRS modular rack system.


Key benefits

Excellent part accessibility- At just 25 mm (0.97 in) diameter, the SP25M is small and light, making it ideally suited to mounting
on articulating heads and on extensions of up to 100 mm (3.94 in). Thus a total reach of some 600 mm (23.62 in) is possible. It is
also sufficiently compact to suit very small CMMs.

Modularity to allow unrivaled flexibility- The SP25M system allows the user to configure a basic installation which can be readily
expanded at any time.

Two sensors in one - scanning and touch-trigger- SP25M allows the user to always select the most suitable measurement
solution to match the application, either scanning or touch-trigger.

Technical Specifications

Mounting: Renishaw’s autojoint: PH10M, PH10MQ or PH6 heads and may be mounted on ≤100 mm autojoint extension bars
Probe dimensions Ø25 mm (Ø0.98 in) x length dependent upon module used
Probe attributes 3 axis analogue measurement (X, Y, Z). Pivoting motion in XY plane with translation in Z.
Plane translation in all 3 axes XYZ
Measurement range ±0.5 mm (±0.02 in) deflection in all directions in all orientations
±0.3 mm
Overtravel range ±X, ±Y = 2.0 mm (0.08 in) +Z = 1.7 mm (0.07 in) -Z = 1.2 mm (0.05 in)
±X, ±Y = 0.95 mm (0.037 in) +Z = 1.0 mm (0.039 in) -Z = 1.1 mm (0.043 in)
Crash protection X, Y, -Z via break-off of either module or stylus holder +Z via integral bump-stop design
Resolution <0.1 μm (0.000004 in) with either UCC controller or AC3 interface card
Spring rate ~0.2 N/mm (with longest stylus) ~0.6 N/mm (with shortest stylus)
Damping Single viscous fluid damper
Two viscous fluid dampers
Power supply +12 V (±5%), -12 V (+10% / -8%), +5 V (+10% / +13%) DC at probe
Outputs (X,Y, Z) Non-linear and non-orthogonal analogue outputs – rate, gain and resolution are not fixed
Probe calibration SP25M requires a non-linear, third-order polynomial calibration method
Suitable styli M3 range Stylus length (EWL)
20 - 50 mm (0.78 - 1.97 in) using 20 mm - 50 mm stylus
50 - 105 mm (1.97 - 4.11 in) using 20 mm - 75 mm stylus
120 - 200 mm (4.72 - 7.87 in) using 20 mm - 100 mm stylus
220 - 400 mm (8.66 - 15.75 in) using 20 mm - 200 mm stylus
10 - 100 mm (0.39 - 3.94 in) using 10 mm - 100 mm stylus
Interface options Renishaw UCC controllers