A 2CAV 6-comp box lid mould is a practical tooling choice for takeaway trays, airline meal boxes, school lunch packaging, and prepared food lines that need one lid to seal multiple compartments. The mould must control flatness and sealing geometry across a wide part, otherwise the finished lid may leak or lift at the compartment ribs.
Buyers should evaluate this mould as part of a container system. The lid has to match the tray rim, compartment dividers, stack height, and packing process. A lid that runs quickly but does not seal consistently will increase downstream rejection and customer complaints.
Lid Flatness and Sealing Fit
Six-compartment lids have long flow paths and multiple sealing lines. The mould design should manage cooling around the outer rim and inner ribs so the lid stays flat after ejection. Uneven shrinkage can cause lid curl, local gaps, or excessive closing force on the matching tray.
Before approving tooling, buyers should confirm the lid drawing, tray sample, resin grade, target lid weight, expected clarity or flexibility, and whether the lid will be used for hot food, chilled food, or delivery packaging. These details influence gate selection, venting, steel finish, and ejection structure.
Cavity Balance and Production Output
The value of a 2-cavity lid mould depends on cavity-to-cavity consistency. Trial reports should show sample weights, dimensions, visual checks, and lid-fit results from both cavities. Buyers should ask how the hot runner or cold runner design balances filling and how the cooling layout supports the target cycle time.
Ejection is another key point. A wide flat lid can deform if ejection force is uneven, especially around compartment rib areas. The mould should release the lid without twisting, whitening, or leaving marks in visible or sealing zones.
RFQ and Acceptance Checklist
A strong RFQ should include lid and tray drawings, resin type, target weight, machine model, output target, automation plan, packaging method, and trial acceptance requirements. If the lid needs to match an existing tray, physical samples should be sent before final mould design.
Acceptance should include lid closing force, leak or spill testing, stack testing, hot or cold condition checks, continuous running stability, and spare-part documentation. These items help buyers judge whether a 2CAV 6-comp box lid mould is ready for production rather than only ready for display samples.
