What determines the quality of braking performance?

　　

 

　　What determines the quality of braking performance? Generally, it hinges on two key components: the brake valve and the brake pads.

 

　　The material of brake pads directly determines the quality and stability of braking performance. Some truck drivers find that when they first buy a new vehicle, the trailer brakes perform exceptionally well, but after replacing the brake pads, braking effectiveness drops immediately—this is especially true for factory‑original axles, not aftermarket ones. Friction coefficient and thermal fade are the most critical factors. Standard brake pads often fail to meet the required friction levels, resulting in subpar braking. When driving on plateaus or in mountainous areas with frequent braking, temperatures can rise to 180–220°C, causing the friction coefficient to decline. Consequently, the threshold at which thermal fade begins is crucial; the unmistakable symptom is spongy brake pedal feel, with little improvement in stopping power no matter how hard you press.

 

　　Different brake pads have varying thermal fade temperatures. Leaving aside the performance of lower‑quality pads, standard brake pads typically begin to experience thermal fade at around 170°C–200°C, whereas high‑quality pads can withstand temperatures of at least 200°C–280°C. It’s easy to see which option is safer.

 

　　If high‑temperature braking performance degrades or braking fails, such incidents frequently occur—often due to inadequate brake performance. Accidents can result when the brake pad material fails to meet the demands of high‑temperature braking. High‑quality brake pads maintain a friction coefficient of 0.38–0.40 within a temperature range of 230–290°C, without any loss of friction, and they do not damage the brake drums. Their service life is roughly twice that of standard brake pads.

 

　　Some repair shops lack a thorough understanding of brake pads and typically install only standard‑grade pads. Additionally, some drivers try to cut maintenance costs, but this is a common misconception: you’re not saving money—you’re actually increasing it. Low‑quality brake pads have a short service life and can severely damage the brake drums, often requiring replacement within one to two years. Just think about how much that adds up to! We recommend using brake pads that meet national standards—they ensure consistent braking performance while extending the lifespan of your brakes.

 

　　Some people believe that simply replacing the brake valve will improve the vehicle’s overall braking performance, but this is incorrect. Modifying the braking system—specifically upgrading the brake valve—is an essential component of the entire braking setup. However, when driving on plateaus or in mountainous terrain, no matter what type of brake valve you install, it cannot control the friction coefficient of the brake pads. In other words, it cannot manage the high temperatures generated by frequent braking. Of course, superior braking performance helps keep the brake drums cooler, allowing you to decelerate to your desired safe speed with just one or two pedal applications. But if braking performance is subpar, you’ll need to press the pedal repeatedly—perhaps every two presses reducing pressure by 0.1 MPa or more. The more often you apply the brakes, the more air pressure you expend, yet the less effectively you can slow down; the hotter the brake pads become, the lower their friction coefficient drops, creating a vicious cycle. A high‑performance brake valve and high‑quality specialty brake pads are complementary—neither can function effectively without the other.

 

　　Huangshi Saite Friction Materials Co., Ltd. has developed high‑performance, asbestos‑free brake pads specifically for trailers, semi‑trailers, and heavy‑duty trucks operating on steep mountainous terrain. These pads reliably deliver a service life of 150,000 to 200,000 kilometers. The product line includes the Jin Dun series with standard formulations and the Tian Dun series featuring premium formulations (see below for the steady‑state friction performance test report of the Tian Dun 6526 brake pad). It is a trusted choice for truck drivers nationwide.