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MP250

MP250 strain gauge probeAvailable Autumn 2008

The world’s first strain gauge based inspection probe for grinding machines, using Renishaw’s patented Rengage™ technology

About the MP250

The Renishaw MP250 is an ultra compact touch probe for grinding machines that sets new standards for the precision measurement of 3D part geometries, whilst offering all the standard probing benefits of reduced set-up times, reduced scrap and improved process control.

The MP250 uses a hard-wired connection to the machine control via the specially designed HSI interface.

It offers a truly unrivalled combination of size, accuracy, reliability and robustness that will benefit its users through reduced set-up times, reduced scrap and improved process control.

MP250 features and benefits

MP250 strain gauge probeHigh accuracy
Patented RengageTM strain gauge technology with ultra-low pretravel variation provides high accuracy, even when the application requires long styli.

Highly repeatable
Improved repeatability in all probing directions compared to standard probes.

Ultra compact
Measuring only Ø25 mm x 40 mm long, the MP250 is ideal for grinding machine applications with restricted space.

Robust and reliable
Renishaw's MP250 sets new standards for reliability and is designed to resist the harshest machine conditions.

MP250 specifications

Dimensions

Length: 40.5 mm (1.59 in)
Diameter: 25 mm (0.98 in)
Weight: 65 g (2.3 oz)

Transmission type

Hard wired transmission using the HSI interface

Sense directions

Omni-directional ± X, ± Y, + Z

Uni-directional repeatability

0.25 μm (10 μin) 2 sigma*

2D lobing in X, Y

± 0.25 μm (10 μin)*

3D lobing in X, Y, Z

± 1.00 μm (40 μin)*

Stylus trigger force
XY plane
+Z direction


0.11 N (11 gf) 0.39 ozf Ŧ
2.20 N (220 gf) 7.91 ozf Ŧ

Stylus overtravel force
XY plane
XY plane
+Z direction


low force - 0.45 N (45 gf) 1.59 ozf §
high force  - 0.9 N (90 gf) 3.17 ozf §
9 N (900 gf) 31.8 ozf §

Stylus length
Standard
Longest


50 mm (1.97 in)
Longest 100 mm (3.94 in)

Stylus overtravel
XY plane
+Z direction


± 15°
6.5 mm (0.26 in)

Mounting

M16 thread, for LT extension bars and adaptors

Sealing

IPX8

Storage temperature

-10 °C to 70 °C (14 °F to 158 °F)

Operating temperature

5 °C to 50 °C (41 °F to 122 °F)

*  Specification is for a test velocity of 480 mm/min (18.9 in/min) with a 35 mm stylus.
Ŧ Specification is for a test velocity of 30 mm/min (1.2 in/min) with a 35 mm stylus.
§ Specification is the maximum force with a 35 mm stylus and an XY stylus deflection of 15° and a Z stylus deflection of 6.5 mm

HSI Interface

HSI Specifications

Principal application

Hard-wired transmission interface, which conveys and processes signals between an inspection probe and the CNC machine control

Dimensions

134 mm x 107.6 mm x 34.6 mm

Mounting

DIN rail

Power supply

12 V to 24 V d.c.

Probe compatibility

The HSI interface is compatible with the following probes: LP2H, LP2, LP2DD, LP2LD and MP250

Next steps

Contact us online if you require more information or you have a pricing query, or alternatively you may like to speak directly to your local Renishaw office.



Resources

Machine tool downloads

Marketing literature

MP250 in action