1PCS USED RENISHAW OMP400 High accuracy machine tool probe

Renishaw OMP400

 

1. Product Overview

The Renishaw OMP400 (Part No. A-5069-0001) is an ultra-compact infrared optical machine touch probe integrating patented RENGAGE™ strain gauge measurement technology, designed for small-to-medium vertical machining centres, compact 5-axis mills and mill-turn multi-tasking CNC machines. It combines the mini 40mm footprint of OMP40-2 with sub-micron high precision comparable to premium MP700 probes, delivering ultra-low pre-travel variation, excellent 3D contour measurement performance and outstanding long-term durability. Ideal for precision mold, aerospace, automotive and medical component on-machine inspection, workpiece setting and in-process dimensional verification. It maintains full backward compatibility with all legacy Renishaw optical receiver systems for simple machine retrofits.

2. Physical Dimensions & Mechanical Parameters

- Overall Size: Ø40 mm × 58.3 mm (1.57 in × 2.30 in)
- Net Weight (with batteries, without shank/stylus): 256 g (9.03 oz)
- Sensing Axes: Omni-directional ±X, ±Y, +Z 3-axis trigger detection
- Stylus Overtravel Range:
- X/Y plane: ±18° angular deflection
- Z-axis: 11 mm linear compression travel
- Compatible Stylus: Ruby-tipped ceramic / high-modulus carbon fibre styli, support lengths from 50 mm up to 200 mm
- Mount Interface: Standard CAT, BT, SK, HSK tool shanks for spindle installation

3. Core Precision Performance Specs (2σ, test speed 240 mm/min)

Unidirectional Repeatability

- 50 mm stylus: 0.25 µm (10 µin)
- 100 mm stylus: 0.35 µm (14 µin)
- 150 mm stylus: 0.50 µm
- 200 mm stylus: 0.70 µm

Lobing & Form Deviation

- 2D (X/Y) lobing error: ±0.25 µm (50/100 mm stylus)
- 3D full XYZ lobing error: ±1.00 µm (50 mm) / ±1.75 µm (100 mm)

Trigger Force (Ultra-Low Strain Gauge Design)

- X/Y horizontal trigger force: 6 gf (0.06 N) – drastically reduces stylus bending and measurement distortion
- Z-axis vertical trigger force: 260 gf (2.55 N)

Key RENGAGE™ Advantages Over Kinematic Probes

1.Near-uniform pre-travel across all axes, PTV (pre-travel variation) reduced by 90% vs standard touch-trigger probes
2.10 million trigger cycle service life, no reseat mechanism failure risks
3.Digital signal filtering suppresses false triggers from machine spindle vibration
4.Stable precision even when deploying long, slender styli for deep cavity measurement

4. 360° Modulated Infrared Optical Transmission

- Signal Type: Modulated infrared communication, strong anti-interference against workshop fluorescent, LED and welding light
- Coverage: Full 360° omnidirectional optical switch-on & signal transmission
- Maximum Line-of-Sight Operating Distance: Up to 5 m (16.4 ft)
- Dual Working Modes
1.Modulated Mode: Pair with OMI-2 / OMI-2T / OMI-2C / OMI-2H receivers for best noise resistance
2.Legacy Compatibility Mode: Works with older OMM / MI12 interface kits for low-cost retrofitting existing MP-series probe systems
- Power Config: Adjustable high/low optical power to extend battery runtime for short-distance installations

5. Power Supply & Battery Lifespan

- Power Source: 2 × ½ AA 3.6 V lithium-thionyl chloride batteries
- User-Configurable Power Modes
- Optical On / Optical Off (factory default)
- Optical On / Timer Auto Off (custom timeout setting)
- Continuous Active Probing Runtime: Up to 105–110 hours
- Standby Storage Life: Over 1 year without battery replacement

6. Environmental Protection & Durability

- Ingress Protection: IPX8 fully sealed housing, complete resistance to flood coolant, cutting oil, metal swarf and high-pressure machine washdown
- Operating Temperature: +5 °C ~ +50 °C (41 °F ~ 122 °F)
- Storage Temperature: -25 °C ~ +70 °C (-13 °F ~ 158 °F)
- Reinforced SwarfStop barrier structure blocks chip ingress to extend service life in heavy cutting environments

7. Compatible Receivers & Interfaces

Fully interoperable with Renishaw’s full optical probe receiver lineup:

- New integrated units: OMI-2, OMI-2T, OMI-2C, OMI-2H
- Split receiver kits: OMM-2 / OMM-2C paired with OSI / OSI-D signal interfaces
- Legacy retrofit hardware: OMM + MI12 interface for MP7/MP8/MP9/MP10 system upgrades

8. Main Industrial Functional Capabilities

1.Automatic Workpiece Setup: Fast part zero offset, fixture alignment and stock coordinate calibration, eliminating manual dial indicator operations
2.High-Precision In-Process Inspection: Accurate measurement of complex 3D contours, curved surfaces, deep cavities and multi-angle features for mold & 5-axis machining
3.Tool Setting & Breakage Monitoring: Measure tool length/diameter offsets and detect broken cutters to avoid scrap parts
4.Closed-Loop Batch Production Control: Maintain micron-level tolerance consistency across mass manufacturing runs
5.Machine Tool Performance Diagnosis: Track spindle accuracy and positioning deviation for predictive maintenance

9. Unique Product Competitive Advantages

1.Ultra-compact Ø40 mm body fits tight spindle envelopes on small 5-axis machines and compact mill-turn equipment
2.Patented RENGAGE strain gauge technology delivers sub-micron repeatability and minimal 3D lobing for complex shape measurement
3.Ultra-low XY trigger force minimizes stylus deflection, retaining high precision even with long carbon fibre styli up to 200 mm
4.10× longer service life than traditional kinematic probes, lowering maintenance and replacement costs
5.Modulated infrared transmission eliminates false triggering under harsh workshop lighting conditions
6.IPX8 full coolant resistance for heavy-duty continuous machining
7.Dual optical operation modes support both new machine installation and affordable retrofits of older CNC equipment
8.360° optical activation allows probe power-on/reset at any spindle rotational angle

10. Typical Application Scenarios

- Precision mold & die machining (plastic molds, die casting molds)
- 5-axis vertical machining centres for aerospace structural components
- Small mill-turn multi-tasking lathes for medical and miniature automotive parts
- Job shop high-tolerance batch production
- Secondary fixture inspection and complex contoured part verification
- Educational precision CNC training equipment

On Jun 17, 2026 at 03:46:09 PDT, seller added the following information: