High-Performance Blue Brake Caliper

Customer **** (a large auto parts distributor in the Middle East) purchased 12,000 sets of brake pads from our company on *月*日 2023 (Order No.: ****), shipped in 3 40-foot high-cube containers. After the goods arrived at the port, during random inspection in the warehouse, the customer found fine cracks on the friction material surface of approximately 2,300 sets, and some products had edge chipping during installation testing. The customer immediately provided photos and videos, and reported that this batch may have material mixing or pressing process defects, requesting full replacement of the defective batch and compensation for losses caused by work stoppage. Preliminary review by our technical department showed abnormal pressing parameters during the morning shift on a certain day for this batch, requiring urgent handling.

Our company immediately established a dedicated after-sales team, confirmed the defect ratio and batch number via video call with the customer, and requested the customer to seal all products in question. Simultaneously, we arranged for the quality inspection department to retrieve the pressing parameter records and retained samples for re-inspection, confirming that defective products were concentrated at approximately 2,300 sets. To avoid disrupting the customer's normal supply, we first arranged free air freight of 2,500 new brake pads (including 200 spare sets) to the customer's designated overseas warehouse, while also arranging for the freight forwarder to return the defective products to the designated return warehouse as requested by the customer. All return shipping costs, customs clearance fees, and air freight costs for the new shipment were borne by our company. Regarding the customer's compensation claim, after negotiation, 15% of the value of the defective batch was agreed as quality compensation, directly deducted from the customer's next order payment.

A major Middle Eastern commercial vehicle fleet customer purchased 50,000 sets of brake pads and 2,000 sets of brake calipers through a B2B platform. After receiving the goods, they reported severe brake noise, longer braking distances, and early cracking in some brake pads. The customer demanded returns and compensation, with the order value exceeding USD 1.2 million, making the situation urgent. After remote technical troubleshooting and sample testing, it was found that the products themselves complied with the SAE J661 standard. The issue stemmed from improper installation by local maintenance workers: failure to clean mounting surfaces, failure to apply high-temperature anti-squeal paste, incorrect use of pneumatic tools to over-tighten caliper bolts, and prolonged vehicle overloading causing excessive brake pad temperatures.

We immediately activated our after-sales training emergency plan, dispatching 2 senior technical engineers to fly to the customer's location to conduct a 5-day 'Special Training on Installation, Operation, and Maintenance'. The training targets included the customer's procurement team, warehouse quality inspectors, and technicians from cooperative repair outlets, totaling 86 people. Course content included: correct installation procedures for brake pads/brake discs/brake calipers, torque standards and tool usage specifications, correct application methods for anti-squeal paste and anti-seize coating, high-temperature alarm and wear limit judgment, and precautions for use under overload conditions. Bilingual operation manuals in Arabic and English, video tutorials, and on-site real-vehicle disassembly and assembly drills were also provided. For already-installed brake pads, we assisted the customer in a comprehensive inspection and free replacement of 3,200 sets of parts damaged due to improper installation; the remaining products were tested and continued to be used.

The customer (***) ordered 5,000 sets of brake pads (model: ***) through the B2B platform. After arrival at the port, they reported that about 1,200 sets produced sharp abnormal noise during vehicle braking. The customer requested compensation and suspension of subsequent orders. Due to the extremely high return cost and the lack of professional testing equipment locally, remote guidance is needed to troubleshoot the cause.

We have urgently initiated the remote technical support process: 1. Request the customer to randomly select 10 sets of brake pads with abnormal noise, and take high-definition photos and videos of the mounting surface, chamfer, and friction material surface condition; 2. Remotely guide the customer to inspect the wear patterns on the brake disc surface to confirm whether there are obvious grooves or hard spots; 3. Through comparison, it was found that the chamfer angle of the products from the abnormal noise batch deviates from the standard sample, and some brake pad backplates have uneven coating thickness, resulting in abnormal clearance with the caliper after installation; 4. Provide two solutions: A. Guide the customer's local repair station to use an angle grinder to correct the 45-degree chamfer on both ends of the brake pads and clean the backplate burrs; B. For the 300 sets that cannot be corrected on-site, we will provide free replacement parts by air freight and bear the corresponding port costs; at the same time, arrange technical engineers to conduct standardized installation training for local technicians via video conference.

The customer purchased 5,000 sets of brake pads and brake discs (model numbers have been masked). During assembly into a certain commercial vehicle model, approximately 35% of the brake pads were found to have insufficient clearance with the caliper bracket, causing brake noise and poor return. The customer has suspended further shipments and urgently requires resolution; otherwise, they face a full batch return and high air freight claims.

We immediately arranged for 2 senior technical engineers to fly to the customer's local warehouse and assembly line to provide 5 days of on-site technical support. On-site sampling inspection was conducted on 120 faulty products, measuring key data such as brake pad thickness, shim dimensions, and caliper bracket inner width. It was found that the actual dimensional deviation of this batch of caliper brackets (customer-purchased parts) ranged from 0.8 to 1.5 mm, causing abnormal matching with the brake pad profile. The engineers and the customer jointly developed a combined solution: applying on-site chamfering and grinding to the approximately 1,800 assembled products, replacing the mismatched caliper brackets in the remaining 3,200 units, and providing standard installation torque and step-by-step guidance to ensure complete consistency in subsequent assembly.