+604-538 1998, +604-530 1998, +6012-498 2349






Integral Probe: Yes

Index Motion: Automated

Max. Length: 168mm

Index Resolution: 15°

Index Positions: 168

Repeat. Indexing: Yes

Repeat. Stylus Change: Yes

RTP20 (Automated Indexable Probe Head)

The RTP20 probe offers a cost effective solution for customers that require automatic indexing on CNC machines. Modelled on the MH20i body, the RTP20 uses the CNC motion of the CMM to position itself using a post mounted to the bed of the machine. Like the MH20i it is able to index from 0° to 90° in the A axis and through 360° in the B axis to be moved to 168 repeatable positions in 15-degree increments and uses a TP20 stylus module, which in turn accepts the M2 range of styli. The RTP20 is also fully compatible with the MCR20 change rack to provide an option that provides both automatic stylus changing as well as automatic indexing.
RTP20 offers low-cost ‘motorised’ head functionality with integral TP20 touch-trigger probe

RTP20 probe key benefits
Improved productivity is achieved via probe module changing and automated indexing without the need for constant re-qualification.
Increased reach and flexibility
A built-in extension together with existing extension bars allow reach up to 168 mm (including maximum stylus length).
Utilising the CMM motion to lock and orientate the head, together with the MCR20, provides a fully automated system.
Crash protection
TP20 modules have overtravel in all directions. The magnetic mounting provides additional crash protection in X and Y.



TP20 Stylus Modules

A range of seven, application specific, probe modules is available and are identified by coloured caps.


  Application Trigger forces* Stylus lengths

SF- Standard force

TP20 SF module


Suited to the majority of applications

XY: 0.08 N

Z: 0.75 N

Stylus: 10 mm

10 mm to 50 mm GF

LF- Low force

TP20 LF module


Low trigger forces applications - e.g. rubber seals

XY: 0.055 N

Z: 0.65 N

Stylus: 10 mm

10 mm to 30 mm

MF- Medium force

TP20 MF module


Where a higher trigger force than standard is required

XY: 0.1 N

Z: 1.9 N

Stylus: 25 mm

10 mm to 60 mm

EF- Extended force

TP20 EF module


Large stylus assemblies or where vibration causes spurious 'air' triggers

XY: 0.1 N

Z: 3.2N

Stylus: 50 mm

10 mm to 60 mm

6W- 6-way

TP20 6W module


Measurement in the –Z direction - e.g. undercuts

XY: 0.14 N

Z: 1.6N

Stylus: 10 mm

10 mm to 30 mm

EM1 STD- 50 mm extension

TP20 EM1


Majority of applications requiring a 50 mm extension

XY: 0.08 N

Z: 0.75 N

Stylus: 10 mm

10 mm to 50 mm

EM2 STD- 75 mm extension

TP20 EM2 module


Majority of applications requiring a 75 mm extension

XY: 0.08 N

Z: 0.75 N

Stylus: 10 mm

10 mm to 50 mm

MCR20 Change Rack
The MCR20 probe module changing rack is designed to securely hold stored modules for rapid automatic changing, and to protect them from airborne contaminants which may be present within the working environment.



 Inquiry - RTP20