SP25M user's guide
www.renishaw.com
Disc stylus performance
SS - stainless steel, CER - ceramic
Bi-directional ring gauge scan test
Scanning
Effective
module
stylus reach
(PH10 axis
position)
SM25-3 (A0)
100 mm
SM25-3 (A0)
120 mm*
SM25-3 (A0)
120 mm*
SM25-3 (A0)
150 mm**
SM25-4 (A0)
200 mm
SM25-4 (A0)
250 mm**
* including the 20 mm extensions
** including the 50 mm extension
Renishaw has developed a lightweight 30 mm diameter disc stylus (A-5003-7098) that will enable two-dimensional scanning with SM25-1 /
2 scanning modules. Alternatively a 12 mm diameter disc stylus (A-5000-3615) is available that can be used with SM25-1 / 2.
Issued 06 2022
Actual disc
RMS data
stylus used:
raw
Diameter /
material
Ø30 mm /
0.52 µm
CER
Ø35 mm / SS 0.5 µm
Ø35 mm / SS 0.4 µm
Ø30 mm /
0.53 µm
CER
Ø30 mm /
0.77 µm
CER
Ø30 mm /
0.77 µm
CER
RMS data
SPAN data
filtered
raw
0.5 µm
2.9 µm
0.3 µm
3.7 µm
0.3 µm
2.6 µm
0.48 µm
3.6 µm
0.72 µm
4.5 µm
0.68 µm
4.2 µm
SPAN data
Stylus tip
filtered
deflection
2.4 µm
0.2 mm
2.3 µm
0.2 mm
1.8 µm
0.2 mm
2.5 µm
0.2 mm
3.5 µm
0.2 mm
3.1 µm
0.2 mm
Data pts
1244
885
896
1244
1244
1243
73