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The 4708 Cast Brake Shoe, a flagship product from Dingchi, is a heavy-duty braking component designed for trailers and ROR (Roll-On/Roll-Off) equipment. Unlike traditional stamped brake shoes, the 4708 uses a cast iron construction, delivering superior strength and rigidity. With a dimension of 16.5 inches by 7 inches and FMSI# 4708, it is compatible with most standard trailers and ROR systems, while its application scope includes both ROR equipment and trailers. Dingchi’s casting process prioritizes structural integrity: thicker table plates and reinforcing webs enhance load-bearing capacity, while precision lathe machining on the outer diameter ensures optimal contact with brake linings. A key technical advantage is its consistent clearance—kept under 0.20mm— which guarantees smooth braking and reduces noise. While the cast construction makes the 4708 heavier than stamped alternatives, its durability and performance justify the slight weight increase for heavy-duty users.
Cast iron is known for its high tensile strength and resistance to deformation, making the 4708 Cast Brake Shoe ideal for trailers carrying heavy loads. The thicker table plates and reinforcing webs further enhance structural stability, preventing bending or cracking during intense braking.
The outer diameter of the 4708 undergoes precision lathe machining, ensuring a smooth, uniform surface. This machining process guarantees that the brake shoe makes full contact with the brake lining, eliminating gaps that can reduce braking efficiency or cause uneven wear.
With clearance kept under 0.20mm, the 4708 minimizes the distance the brake shoe needs to travel to engage the lining. This results in faster braking response times— a critical safety feature for trailers and ROR equipment that often operate in busy or high-risk environments.
Cast iron’s natural wear resistance, combined with Dingchi’s surface treatment, extends the 4708’s service life. Even under frequent braking, the shoe maintains its shape and functionality, reducing the need for frequent replacements.
Trailers transporting construction equipment, industrial machinery, or bulk goods require brake shoes that can handle extreme stress. The 4708’s cast iron construction and high strength make it perfect for these applications, ensuring reliable braking even when the trailer is at maximum load.
ROR equipment used in ports, warehouses, or construction sites often undergoes repetitive loading and unloading cycles. The 4708’s durability and low clearance control make it suitable for these operations, providing consistent braking performance in dusty, high-impact environments.
A: The 4708 uses cast iron, which is denser than the steel used in stamped shoes. This density contributes to its superior strength— a necessary trade-off for heavy-duty applications where durability is more important than minor weight savings.
A: No, the 4708 is compatible with most standard brake linings designed for 16.5"*7" brake shoes. However, we recommend using high-quality linings that match the 4708’s heavy-duty capabilities to maximize performance and service life.
A: A clearance under 0.20mm means the brake shoe engages the lining almost instantly when the brake is applied. This reduces stopping distance, a critical factor for large trailers or ROR equipment that require more time to slow down.
A: Yes, the 4708’s cast iron construction and reinforced design make it resistant to damage from rough terrain. Its ability to handle dust and debris (common in off-road environments) also ensures consistent performance, making it a good choice for off-road trailers.
