High-temperature braking requires both thermal capacity and friction stability. Start by evaluating the energy per stop (inertia and speed) and the duty cycle (stops per hour). Choose a brake design with strong heat dissipation—disc brakes often have an advantage due to airflow and exposed surfaces, while heavy-duty drum brakes can also work with correct sizing and ventilation.
Friction material is critical. Semi-metallic or sintered linings typically tolerate higher temperatures and resist fade better than organic materials. However, they may increase wear on discs or brake wheels. Confirm the lining’s maximum operating temperature, friction coefficient stability across temperature, and bonding method.
Also consider environment: radiant heat, hot dust, scale, or oil mist in metallurgy can rapidly degrade components. Use heat-resistant seals, appropriate coatings, and robust mechanical structures to prevent distortion and clearance drift. Finally, build maintenance into the plan: frequent inspections for glazing, cracking, or hardening help avoid sudden torque loss. When in doubt, oversize for thermal performance—not just torque.
