Waterproof Metal Case

Our company exported a batch of custom distribution boxes to Saudi *** Engineering Co., Ltd., totaling *** units with a value of *** USD. After receiving the goods, the customer conducted spot checks and found that in approximately *** units, the mounting hole spacing deviation exceeded *** mm due to mold errors, making them incompatible with local standard rails and circuit breakers. The customer requires a full-batch return and replacement, as well as compensation for related customs clearance and warehousing costs.

Our company arranged for a quality engineer to conduct remote video inspection at the first opportunity. After confirming the issue, we negotiated with the customer and reached the following plan: 1. All *** distribution boxes that have been unpacked and cannot be installed will be fully returned; 2. The *** units that have not been unpacked will be destroyed locally by the customer with video evidence provided, and our company will compensate at cost price; 3. The new production batch will adopt high-precision laser cutting technology and add 100% trial assembly testing before shipment; 4. All ocean freight, Saudi customs clearance fees, and port storage charges arising from returns and replacements will be borne by our company; 5. The replacement batch of distribution boxes will be accompanied by third-party inspection reports, with delivery time reduced from the original *** days to *** days.

An overseas construction contractor (customer name ***) purchased batch-customized distribution boxes, junction boxes, and circuit breakers, totaling more than 12,000 pieces, delivered in 3 batches by sea. During on-site installation, the customer found that the terminal wiring space of circuit breakers in some batches of distribution boxes did not match local standard cable lugs, and the sealing level of junction boxes caused condensation in specific environments. The customer urgently requested remote troubleshooting and a rectification plan, otherwise the overall project schedule would be affected.

Our side immediately formed a remote technical support team, using video connection + high-definition photography to guide the customer's on-site personnel in checking the problematic batch unit by unit, and retrieving factory inspection records for comparison. It was confirmed that the issue originated from the customer's use of non-standard large-diameter cable heads on site, and some junction boxes were installed in high-humidity, poorly ventilated areas. Our side remotely provided two solutions: 1) For already installed distribution boxes, guided local electricians to adjust wiring space using adapter copper bars + insulating sleeves; 2) For uninstalled junction boxes, recommended adding breather valves and adjusting installation orientation, while free-of-charge sending a batch of custom extended-length wiring terminals and sealing strips for replacement. All operational steps were transmitted remotely in graphic + video format, and engineers were arranged to be online in 24-hour shifts for response.

The customer is a large engineering project contractor in the Middle East, who purchased 1,200 distribution boxes, 8,500 circuit breakers, and 30,000 junction boxes in one order. After the goods arrived at the port, the local installation team was unfamiliar with the product wiring specifications and circuit breaker commissioning, leading to issues such as tripping in about 300 distribution boxes and reversed wiring during the initial installation. The customer's project schedule was delayed, and they filed a complaint with our company requesting urgent resolution.

Our company has urgently initiated the after-sales training service process, dispatching 2 senior electrical engineers to the customer's installation site to conduct a 5-day systematic training for the customer's project team and installation workers. The training content includes: practical operation of internal wiring standards for distribution boxes, setting and testing methods for circuit breaker trip values, and crimping specifications for waterproof terminals in junction boxes. Additionally, bilingual (Chinese and English) operation manuals and recorded video tutorials will be provided, followed by remote Q&A support through online meetings, and a one-on-one technical communication group will be established.

Our company supplied a batch of 12,000 circuit breakers (model BM-63) to a large engineering project in the Middle East. After arrival, installation, and commissioning, approximately 3% experienced issues such as failure to reset after tripping and stuck operating handles. The customer urgently reported this and demanded full replacement; otherwise, it would affect the overall project acceptance and lead to claims for compensation.

Our company immediately formed a special technical team, retrieved batch production and inspection records, and remotely guided the customer in preliminary troubleshooting of the faulty units. At the same time, we arranged for after-sales engineers to fly to the site with spare parts, where they disassembled and analyzed the faulty circuit breakers, confirming that moisture ingress during transportation had caused rusting and sticking of the internal mechanisms. Subsequently, we launched a batch repair service plan: all remaining 12,000 circuit breakers were individually opened and inspected, internally cleaned, lubricated, and subjected to operational testing; damaged components were replaced, and moisture-proof packaging was added. After the repairs were completed, the customer conducted on-site spot checks, and the units were approved for reuse.