End caps that replace foam blocks at both ends of a carton
End caps are the most economical protective part in fiber: two moulded shells that capture the top and bottom of a product and leave the middle of the carton empty. They replace the foam blocks, the corner profiles and often the inner carton itself.
Electronics are the classic case. A device that is heavy, flat and fragile at its corners needs the load taken off its display face and its ports, and it needs the pack to survive being dropped on one edge - the drop that a flat foam pad handles worst.
- Product-specific pocket with clearance for buttons, ports and a protruding lens or screen edge.
- Perimeter shoulders that transfer the drop load into the cap's outer walls, away from the product.
- Flat-topped design so loaded cartons stack without crushing the caps below.
- Accessory pockets moulded into the same cap for cables, adapters or a manual.
Two caps per unit instead of a full tray saves fiber and weight, which shows up directly in a parcel-shipping cost line. As with all our fiber parts, the caps are moulded to your product's drawing rather than cut to a stock size.
MOQ is 10,000 pieces per design; tooling 7–15 days; production 15–25 days after sample approval. Send the device drawing with the drop height you need to pass, or see the rest of our fiber range.
FAQ
Q: Are you a manufacturer or trading company?
A: We are a manufacturer founded in Hong Kong in 2013, with two production bases in Dongguan, China and Ho Chi Minh City, Vietnam, and a total manufacturing area of 26,000 square meters. You are welcome to visit or audit our factory.
Q: What is your MOQ for custom molded fiber packaging?
A: Our standard MOQ is 10,000 pieces per design. If your project requires a different quantity, contact us at info@csl-packaging.com and we will review the options with you.
Q: What is the production lead time?
A: Lead time is generally 15-25 days after sample approval, depending on order quantity and technical difficulty. The exact schedule is confirmed together with your order.
Q: Is molded fiber packaging safe for direct food contact?
A: Yes. Our food-grade molded fiber trays are produced from virgin plant fiber and comply with food-contact requirements. Please tell us your destination market when requesting a quotation, and we will confirm the applicable compliance documents (for example FDA or EU 1935/2004).
Q: Are your molded fiber food trays PFAS-free?
A: Yes. We offer PFAS-free, plastic-free molded fiber trays with water and oil resistance achieved through fiber selection and forming process, rather than fluorochemical coatings.
Q: Can you produce trays in custom shapes and compartment layouts?
A: Yes. We custom-mold trays to your product dimensions and required compartment layout, based on your 3D drawing or physical sample. Samples are provided for approval before mass production.
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