50 N Manual Probe With Ø5.5 Tip For Models 502.230/231/240/241, Ra

Consistent 50 N contact and a compact probe tip Ø5.5 mm combine to deliver reproducible roughness readings; the manual drive gives controlled positioning for specimens from 2 mm thickness and 0.3 kg weight. Order the manual 50 N probe M502.253 directly via Metav Werkzeuge or ask our consultants if needed.

Manual 50 N probe for models 502.230 / 502.231 / 502.240 / 502.241 — Ultrasonic probe by Metav IndustryLine

A manual ultrasonic probe that provides stable contact force for precise surface roughness measurement in workshop and laboratory settings.

*50 N measurement force
*Manual drive for precise positioning
*Probe tip Ø5.5 mm, oscillation rod Ø3 mm
*Suitable for specimens ≥2 mm thick

Stable contact for repeatable roughness readings

The 50 N specification defines a constant measurement force that reduces variability from manual handling and improves measurement repeatability. A defined contact force is particularly valuable when assessing surface texture where slight pressure changes can distort Ra results; the controlled 50 N contact promotes comparable readings across batches and operators. This characteristic supports efficient quality assurance workflows and reduces rework caused by inconsistent measurements.

Sensitive tip and oscillation for surface detail

A compact probe tip Ø5.5 mm combined with an oscillation rod Ø3 mm concentrates contact on a small surface area, increasing sensitivity to micro‑texture while limiting averaging effects over broader zones. For ultrasonic roughness measurement this geometry yields clearer distinction of fine peaks and valleys, which is beneficial for components with low to moderate roughness values. The specification Ra < 10 μm indicates suitability for finely finished surfaces where small deviations are critical to function.

Designed for integration and robust handling

The unit is produced for straightforward attachment to matching roughness instruments and is compatible with the main models listed. The probe’s manual drive enables careful, stepwise positioning, giving operators tactile control during set‑up and inspection. The assembly remains compact yet sturdy, weighing 1 kg for ease of handling and minimised inertia during adjustments. The article reference M502.253 denotes the specific configuration intended for retrofitting or replacement tasks.

Practical use cases and specimen guidance

Intended for use with specimens that are at least 2 mm thick and have a minimum weight of 0.3 kg, the probe suits production sampling, incoming inspection and laboratory checks of machined parts, coatings and precision castings. The manual drive supports delicate alignment for small components while the defined contact force benefits repeat measurements on series parts. Where surface quality has functional implications—sealing faces, bearing journals or mating surfaces—this probe helps to confirm compliance with production tolerances.

Contact Metav Werkzeuge in Emmerich for technical advice or to arrange delivery of the M502.253 manual 50 N probe and integration options

Technical Data

• Article number: M502.253
• GTIN: 4054469165585
• Tariff number: 90249000

Facts

• Measurement force: 50 N
• Probe tip diameter: Ø5.5 mm
• Oscillation rod diameter: Ø3 mm
• Dimensions: 154 x Ø22
• Weight: 1 kg

Special features

• Manual drive for controlled positioning
• Compatible with models 502.230 / 502.231 / 502.240 / 502.241
• Suitable for specimens ≥2 mm thickness and ≥0.3 kg
• Surface roughness compatibility Ra < 10 μm
• Category: Ultrasonic probe

FAQ

Which instruments is this probe compatible with?
The probe is designed for use with the roughness instruments referenced as models 502.230, 502.231, 502.240 and 502.241 and is supplied as item M502.253.

How does the 50 N measurement force affect results?
A defined 50 N contact force ensures stable sensor contact and reduces operator‑dependent variation, improving reproducibility of roughness measurements with this ultrasonic probe.

What specimen sizes are suitable for this probe?
This probe is intended for test pieces with a minimum thickness of 2 mm and a minimum weight of 0.3 kg; these limits support reliable mounting and repeatable readings.

Is the probe suitable for finely finished surfaces?
Yes; the probe’s geometry and oscillation are appropriate for surfaces in the range up to Ra < 10 μm, making it suitable for precision machined and finished components.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com