OMP400 compact high accuracy touch probe
The OMP400 is an ultra compact probe, ideally suited to small to medium machining centres. It combines the miniaturisation of the highly successful OMP40 probe with new advances in strain gauge technology, pioneered by Renishaw's high accuracy MP700 probe.
Strain gauges attached to the structure measure the smallest of stylus motions, allowing for a very sensitive system.
The innovative RENGAGE™ technology built into the OMP400 brings unrivalled performance in terms of 3D measurement. Use OMP400 with Renishaw OMV for advanced on-machine verification when machining contoured surfaces and complex shapes.
OMP400 features and benefits
OMP400 system options
OMP400 with OMI-2T
OMP400 with OMI-2
OMP400 with OMI
OMP400 with OMM / MI 12
|Offers a state-of-the-art modulated optical transmission method and the twin probe option.||Offers a state-of-the-art modulated optical transmission method.||Ideal for factory fitment by machine tool builders.||Offers installation flexibility making it ideally suited for retro-fitting in the field.|
|Principal application||Small to medium machining centres and mould & die applications|
|Weight (without shank in g)
|262 g (9.24 oz)
242 g (8.53 oz)
|Sense directions||Omni-directional: ± X, ± Y, +Z|
|Uni-directional repeatability||0.25 µm (10 µin) 2 sigma 50 mm stylus
0.35 µm (14 µin) 2 sigma 100 mm stylus length
|2D lobing in X, Y||± 0.25 µm (10 µin) 2 sigma 50 mm
± 0.25 µm (10 µin) 2 sigma 100 mm stylus length
|3D Lobing in X, Y, Z||± 1.00 µm (40 µin) 2 sigma 50 mm
± 1.75 µm (70 µin) 2 sigma 100 mm stylus length
|Trigger speed range||10 mm/min to 1 m/min|
|Stylus trigger force**
+ Z direction
|0.06 N, 6 gf (0.22 ozf) typical minimum
2.55 N, 260 gf (9.17 ozf) typical minimum
|Stylus overtravel force**
|1.04 N, 106 gf (3.74 ozf) typical
5.5 N, 561 gf (19.78 ozf) typical minimum †
6 mm (0.23 in)
- 5% usage
- continuous life
|Legacy / Modulated mode
90 / 110 days
110 / 105 hours
|Sealing||IP X8 (BS 5490, IEC 529) 1 atmosphere|
|Compatible interface||Legacy mode: OMI or OMM / MI 12|
* Performance specification is for a test velocity of 240 mm/min (9.45 in/min) with a 50 mm carbon fibre stylus. Test velocity does not constrain performance in application.
** The stylus trigger force is the force exerted on the
component when the probe triggers. However, the maximum
force applied to the component will occur after the trigger
point and will be greater than the trigger force. The
magnitude depends on a number of factors affecting probe
measuring speed and machine deceleration. If the forces applied to the component are critical, contact Renishaw for further information.
§ Stylus overtravel force in XY plane occurs 70 µm after the trigger point and rises by 0.1 N/mm, 10 gf/mm (9.1 oz/in) until the machine tool stops (in the high force direction and using a 50 mm carbon fibre stylus).
† Stylus overtravel force in + Z direction occurs 10 to 11 µm after the trigger point and rises by 1.2 N/mm, 122 gf/mm (109.6 oz/in) until the machine tool stops.
OMP40-2 software options
EasyProbe - entry-level package for simple work piece set-up
Inspection - basic set-up and work piece inspection cycles, with automatic update of offsets
Inspection Plus - an integrated suite of inspection cycles including vector measurement
Productivity+ Active Editor Pro - a PC-based software package with GUI, allowing the user to select features directly from an imported CAD model, making the generation of probing cycles even easier.
Renishaw OMV - A PC-based software package for verification of complex parts and live data capture to PC during probing for instant feedback on component quality.
OMP400 data sheet
Taper shanks for machine tool probes data sheet
- [43kB] Shank modifications for machine tool probes data sheet
- [80kB] OMP400 flyer
Installation and user's guides
OMP400 installation guide
OMP400 probe system quick start guide
- [458kB] Information leaflet: Styli recommendations for strain gauge probes