Probe Tip/Rod: Temperature Range -200°C to 1200°C

Q: What factors determine probe tip material selection?

Material selection depends on application requirements: stainless steel for general purpose, tungsten carbide for wear resistance, ceramics for high temperature insulation, platinum for chemical inertness, and specific alloys for thermal or electrical properties.

Q: How does probe tip geometry affect measurement accuracy?

Tip geometry determines contact area and pressure distribution. Spherical tips provide consistent point contact, flat tips ensure uniform surface contact, conical tips allow precise positioning, and needle tips enable penetration into materials.

Q: What maintenance is required for probe tips?

Regular cleaning to remove contaminants, inspection for wear or damage, calibration verification, and replacement when dimensional tolerances exceed specifications or surface degradation affects measurement accuracy.

Component Specifications

Definition

A probe tip or rod is the terminal component of a sensing probe that makes direct contact with the target material or surface to detect physical properties such as temperature, pressure, conductivity, or dimensional characteristics. It serves as the interface between the measurement environment and the sensor's internal transduction elements, ensuring accurate signal transmission while protecting sensitive internal components from environmental damage.

Working Principle

The probe tip/rod operates on direct contact measurement principles where physical contact with the target transfers thermal, mechanical, or electrical signals through the rod to the sensing element. For temperature probes, it conducts heat to thermocouples or RTDs; for dimensional probes, it transmits displacement to strain gauges or LVDTs; for conductivity probes, it completes electrical circuits through the material being tested.

Materials

Stainless steel (304, 316), tungsten carbide, ceramic (alumina, zirconia), platinum, nickel alloys (Inconel), copper alloys, depending on application requirements for corrosion resistance, thermal conductivity, wear resistance, and electrical properties.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	10-500 mm
Diameter	0.5-10 mm
Tip Geometry	Flat, spherical, conical, needle
Surface Finish	Ra 0.2-1.6 μm
Temperature Range	-200°C to 1200°C
Electrical Resistance	<1 ohm for conductive probes
Straightness Tolerance	0.01 mm/100 mm

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 10360, DIN 2271, ISO 17025, ASTM E230

Parent Products

This component is used in the following industrial products

Sensing Element/Probe

The core component of a level sensor/transmitter that directly interacts with the measured medium to detect liquid or solid levels.

View Product Details

Engineering Analysis

Risks & Mitigation

Wear and dimensional degradation
Thermal damage from excessive temperatures
Chemical corrosion in aggressive environments
Mechanical deformation from excessive force
Contamination affecting measurement accuracy

FMEA Triads

Trigger: Abrasive wear from continuous contact
Failure: Dimensional inaccuracy exceeding tolerance limits
Mitigation: Implement regular calibration schedules and use wear-resistant materials like tungsten carbide

Trigger: Thermal cycling beyond material limits
Failure: Cracking or deformation of probe tip
Mitigation: Select materials with appropriate thermal expansion coefficients and implement temperature monitoring

Trigger: Chemical exposure to corrosive substances
Failure: Surface pitting and measurement drift
Mitigation: Use corrosion-resistant materials and protective coatings with regular inspection protocols

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.005 mm for dimensional probes, ±0.5°C for temperature probes

Test Method

Coordinate measurement for dimensional verification, calibrated reference standards for temperature/conductivity validation, surface profilometry for wear assessment

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

Compare the published product scope and source details, then include your specifications and quantity in an enquiry.

Manufacturers of Probe Tip/Rod

Manufacturer profiles associated with Probe Tip/Rod.

Sourcing Probe Tip/Rod from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

Related Components

Chrome Plating

Hard chrome plating is an electroplating process that deposits a layer of chromium onto metal surfaces to enhance wear resistance, corrosion protection, and reduce friction for hydraulic cylinder piston rods.

Upper Tool (Punch)

Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.

Main Frame

The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.

Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

Frequently Asked Questions

What factors determine probe tip material selection?