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
Productivity
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).
Automation
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.

Module		Application	Trigger forces*	Stylus lengths
SF- Standard force		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		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		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		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		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		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		Majority of applications requiring a 75 mm extension	XY: 0.08 N Z: 0.75 N Stylus: 10 mm	10 mm to 50 mm

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.