Accurate brake temperature measurement is essential in modern automotive and railway R&D. Whether testing 2-wheelers, 4-wheelers, or locomotives, engineers rely on fast-response sensors to capture real-time thermal behavior during dynamic braking.
The HT-411 Brake Disc Thermocouple from Hi-Tech Transducers & Devices Pvt. Ltd. is designed precisely for this need — combining durability, adjustability, and excellent thermal responsiveness.
Why Brake Disc Temperature Matters
During braking, friction converts kinetic energy into heat. If this heat is not properly monitored and managed, it can lead to:
- Brake fade — reduced braking performance due to overheating
- Disc warping — caused by uneven thermal expansion
- Lining/pad degradation
- Safety failures
- Incorrect performance benchmarking
A fast-response thermocouple mounted close to the rotating disc gives test engineers real-time insight into braking behavior under actual road, lab, or track conditions. This ensures accurate validation of brake system performance and thermal safety limits.
HT-411 Brake Disc Thermocouple – Technical Overview
Application
Designed to measure brake disc temperatures in:
- 2-wheelers
- 4-wheelers
- Railway engines
Its fast-response K-Type sensor captures rapid temperature spikes that occur during sudden braking, high-speed tests, and endurance cycles.
Technical Specifications
Sensor Construction
Thermocouple Type: K-Type (Chromel–Alumel)
Junction Type: Grounded (for fastest response)
Probe Diameter: 0.5 mm & 1.0 mm
Probe Length: 80 mm
Mounting Style: Floating shoe design for stable contact
Extension Leads
Original K-type extension cable, 300 mm long
Available in MI / SS braided versions
Custom lengths as per customer requirement
Temperature Range
0°C to 1000°C, suitable for extreme braking duty cycles
Mounting Options
The HT-411 is adaptable to several vehicle platforms.
A) For 2-Wheelers
- Mounted using a 5 mm fixing hole provided on the brake disc structure
- Ensures stable positioning even under high wheel RPM and vibration
B) For 4-Wheelers
- Uses a stainless-steel mounting bracket
- Bracket comes with a 12 mm diameter fixing hole
- Ideal for passenger cars, commercial vehicles, and motorsport applications
C) For Railway Engines
- Can be integrated using specialized brackets on the brake disc assembly
- Suitable for heavy-duty thermal measurement in rail braking systems
Key Advantages of HT-411
Ultra-Fast Response
The grounded junction and thin probe diameter give immediate temperature feedback — crucial during sudden braking tests.
Easy Installation and Alignment
- Simple mounting arrangement
- Adjustable floating shoe
- Works across multiple vehicle categories
Rugged & Reliable
Designed for harsh environments with vibration, dust, and rapid temperature fluctuation.
Ideal Use Cases
- Automotive R&D brake testing
2. Endurance, hill tests, and repeated braking cycles
3. ABS testing and fade performance studies
4. Railway braking system evaluation
5. Motorsport brake tuning
Conclusion
The HT-411 Brake Disc Thermocouple is a robust, versatile, and fast-responding solution for measuring brake disc temperatures across automotive and rail applications.
Its precise construction, easy mounting, and high-temperature capability make it the preferred choice for engineering teams focused on accurate and reliable brake thermal data.