Effective folding door after-sales service starts with accurate system identification. Because the available product record describes a sliding door rather than a dedicated folding door spare-parts package, replacement stock should not be selected from a generic list. Instead, review the original project BOM, approved drawings, installed hardware, opening dimensions, surface finish, and glazing configuration before purchasing or dispatching any part.
Although the supplied data does not specify a complete folding-door inventory, it indicates three practical stocking groups: replacement aluminum profiles, compatible operating hardware, and glazing-related materials. Each item should remain traceable to the relevant project and be checked against the installed system.
Folding doors may be used for balcony divisions, kitchen partitions, walk-in closets, courtyard entrances, exhibition spaces, and office reception areas. Since each application can involve a different opening size and operating arrangement, the service environment should be considered when defining minimum stock levels.
The available product information provides several reference values that can support an initial compatibility review. These include a 2.0 mm main thickness, a 140 mm by 23 mm side specification, a 40 mm by 16 mm hook specification, and glazing rebates of 11.5 mm and 26 mm. The reported material data is 4.6 kg/m², and the hardware reference is the OPK Perfect System.
These figures should not be treated as a complete folding-door spare-parts schedule. Before ordering, confirm the exact profile section, installed dimensions, opening direction and configuration, coating or anodized finish, glazing arrangement, and hardware model from the project documentation. The available record does not include folding-door-specific part numbers, quantities, or a dedicated maintenance list.
Replacement-part planning is also supported by the manufacturer’s stated quality-control procedures. Xinhe Aluminium reports 100% inspection on production lines, laboratory sampling and testing, and inspection of incoming raw materials. Its listed certifications include the CNAS Laboratory Accreditation Certificate, certificate number CNAS L 10434, and the Quality Management System Certificate issued to GB/T 19001-2016/ISO 9001:2015.
Reported project experience also shows how service coordination and packaging can affect after-sales performance. During the Makassar ATX Project Exterior Wall Project, a dedicated contact was responsible for following sales, production, and delivery and for coordinating solutions when problems occurred. For the 2514 SGP01A Dayone Singapore Data Centre project, aluminum profiles were protected with kraft-paper wrapping and foam corner protectors during transportation.
| Category | Stocking reference | Required confirmation |
|---|---|---|
| Aluminum profiles | The available references include a 2.0 mm main thickness along with side, hook, and glazing-rebate specifications. | Verify the profile section, dimensions, wall thickness, finish, opening arrangement, and project BOM. |
| Operating hardware | OPK Perfect System is the hardware reference recorded for the product. | Identify the installed configuration and match the exact replacement component before shipment. |
| Glazing-related materials | Documented glazing rebates are 11.5 mm and 26 mm. | Confirm the installed rebate, glass build-up, seals, and replacement measurements. |
| Project-specific parts | No dedicated folding-door part numbers, quantities, or full service inventory are supplied. | Obtain approved drawings, installation records, and the original BOM before procurement. |
They should not be assumed to be interchangeable. The supplied product record concerns a sliding door, whereas the service requirement concerns folding doors. Sliding-door data may serve as a technical reference, but compatibility must be confirmed through the project BOM and the hardware and profile system installed on site.
Review the main thickness, side and hook specifications, glazing rebate, material data, profile dimensions, opening configuration, surface finish, and all measurements documented for the individual project.
A controlled process should connect the customer’s service request with the original project records, profile and hardware verification, production inspection, packaging requirements, and delivery tracking. The stated quality process includes production-line inspection, laboratory testing, incoming-material inspection, and an after-sales system for handling customer feedback and service issues.
The most reliable approach is to build folding-door service stock around verified projects instead of purchasing an unspecified universal parts package. Maintain controlled availability of suitable aluminum profiles, compatible OPK Perfect System hardware, and glazing-related replacement materials, then approve each dispatch only after checking the installed configuration and documented dimensions.
Xinhe Aluminium provides distribution and direct-sales support. The stated minimum order quantity for aluminum profiles is 3 tons, with an estimated delivery period of 15–20 days. For technical assistance, product confirmation, or project-specific solutions, contact xh@xinhealuminium.com.
Guangdong Xinhe Aluminium Co., Ltd specializes in the research, development, and manufacture of architectural, decorative, and industrial aluminum alloy profiles. Founded in 1998, the company reports an annual production capacity of 200,000 tons and supplies architectural, window and door, curtain wall, decorative, furniture, industrial, special alloy, custom extrusion, and surface-treated aluminum profiles. Its stated resources include a CNAS-accredited national laboratory and cooperation with research organizations and universities. The company also lists SIRIM and Qualicoat certifications and has supplied customers in a range of industries.

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