Sinowon Ultrasonic Hardness Tester: Precision Non-Destructive Solution for Brake Disc Hardness Measurement

As a critical component of automotive braking systems, brake disc hardness directly impacts braking performance, wear resistance, and safety. Traditional hardness testing methods (e.g., benchtop Vickers testers) face operational challenges when measuring large, heavy brake discs - including low efficiency, visible indentations, and complex workflows. Sinowon's SU Series ultrasonic hardness testers revolutionize brake disc inspection with non-destructive testing (NDT), portability, and laboratory-grade accuracy, meeting stringent industrial and R&D requirements.

Challenges in Brake Disc Hardness Measurement

Brake discs (cast iron/composite materials) present unique testing complexities:

• Large dimensions: On-site testing required due to immobility
• Complex surfaces: Measurement across friction surfaces, cooling fins, and mounting holes
• NDT compliance: Traditional indentation methods risk damaging coatings/thin-walled structures
• Rapid QA workflows: Production lines demand real-time data to prevent delays

1. Non-Destructive Testing with Micro-Indentation

Using Ultrasonic Contact Impedance (UCI) technology, SU testers create sub-10µm indentations (visible only under microscopy), preserving surface integrity for coated/treated brake discs.

2. Portable & High-Speed Operation

• 500g lightweight design: Handheld operation without fixtures
• 2-second measurements: 60x faster than benchtop units, ideal for multi-point sampling

3. Multi-Scenario Probe Compatibility

• MP Series Motorized Probe: Magnetic support ring ensures vertical force alignment on ferromagnetic surfaces
• HP Series Manual Probe: Accesses cooling fins, cylindrical edges, and complex geometries

4. ±3% HV Accuracy & Multi-Scale Conversion

ASTM A1038/DIN 50159 compliant with automatic HV/HRC/HB conversion for diverse materials.

5. Smart Data Management

• 4" color LCD displays real-time stats (max/avg/deviation)
• 1,000-data storage with USB/RS232 export for traceability

Brake Disc Testing Applications & Case Studies

• Friction Surface Uniformity Check
  MP-1000 probe conducts 15-point measurements on a 320mm brake disc in <5 mins, identifying heat-induced hardness variations.
• Cooling Fin Inspection
  HP-10K probe (98N test force) measures fin walls to ensure structural integrity without disassembly.
• Coating/Heat Treatment Evaluation
  Detect case hardening depth (CHD) on nitrided surfaces with micron-level indentation safety.

Why Choose Sinowon?

• ISO 9001 & CE certified
• Lifetime technical support
• Free calibration & operator training
• Custom solutions for specialized needs

Upgrade Your Brake Disc QA Process Today!
Contact Sinowon for a FREE hardness testing consultation.
Official Website: www.sinowon.com | Hotline: +86-769-23184144