Production mould technical dossier
2CAV 6-comp box mould for thin wall multi-compartment meal trays. The tooling is matched with a 350T high-speed machine, targets cycle time within 6 seconds, and supports stable compartment geometry, rim strength, lid fit and stackable packaging output.
Typical product
6-compartment meal box, school or airline tray container, takeaway lunch packaging
Machine matching
350T high-speed injection molding machine
Cycle time target
Within 6 seconds per shot under suitable production conditions
Structure focus
Compartment wall consistency, rim stiffness and stackable geometry
Material compatibility
PP and similar food-grade resins depending on customer application
System matching
Can be reviewed together with the matching lid mould for sealing land, stack height and transport validation
Review the route from drawing and DFM through steel, trial and acceptance.
View evidenceSee how runner, gate and cavity balance are evaluated for repeatable filling.
View evidenceConnect product tolerances with CNC, EDM, inserts and component control.
View evidenceUnderstand dimensional verification and the inspection evidence available.
View evidenceHengqi proof system
Buyers do not evaluate the product concept alone. They also need evidence that the supplier can design, machine, measure, trial and support the mould through production acceptance.
60days
A controlled route from DFM and design approval through machining, trial, correction and acceptance.
3μm
Precision inspection supports dimensional verification for inserts, cores, cavities and critical interfaces.
60+
Engineering, machining, assembly, trial and project support are connected throughout the tooling programme.
300
Production and support resources cover mould development, manufacturing, inspection and after-sales response.
Hot runner and multi-cavity flow balance are reviewed around the real product and output target.
CNC, EDM, component fitting and CMM inspection are connected through the same manufacturing route.
Engineering support continues from drawing review and trial correction to production and after-sales response.
01 / Engineering review
Product geometry, resin, machine, cycle, lid or label and automation are reviewed as one system. The sections below explain the project-specific decisions buyers should confirm before steel is released.
Engineering checkpoint 01
This 2CAV 6-comp box mould is used for meal packaging where multiple food portions must stay separated in one container during filling, transport and reheating.
The compartment layout helps food processors standardize serving formats while maintaining line efficiency with high-speed injection production.
Engineering checkpoint 02
Compartment transitions and thin wall zones require balanced filling and cooling so the container keeps dimensional stability across all six sections.
Hengqi can optimize cavity layout, gate design and ejection strategy based on your target weight, resin, tray depth and automation requirements.
Engineering checkpoint 03
For a 6-compartment lunch box project, the mould should be reviewed together with the matching lid, filling line, stack height and whether the container will be used for chilled meals, hot takeaway or reheating.
The most important RFQ inputs are tray drawing, target gram weight, wall-thickness range, resin grade, compartment volume ratio, lid sealing method and available 350T machine specifications.
Clear confirmation of these points helps reduce sampling changes and gives procurement teams a more accurate comparison of tooling price, expected cycle time and long-term maintenance risk.
Engineering checkpoint 04
Multi-compartment trays can fail from uneven fill, weak partition walls, rim deformation or poor stack separation, so the product drawing should be checked against the chosen resin and injection machine before machining starts.
Hengqi can support design review for rib placement, compartment volume balance, gate position and matching lid contact area to reduce late sampling changes.
Engineering checkpoint 05
Sampling should compare fill completeness at each partition, wall thickness around ribs, rim flatness, stack height, ejection marks and dimensional consistency across the two cavities.
If the tray will be sealed by a snap lid or film, the accepted sample set should include closure tests, transport stacking and filling-line handling so tooling approval reflects the real packaging workflow.
02 / Tooling specification
These values describe the current reference project. Final steel, cavity count, runner, machine and cycle target are confirmed from the customer product and production plan.
Typical product
6-compartment meal box, school or airline tray container, takeaway lunch packaging
Machine matching
350T high-speed injection molding machine
Cycle time target
Within 6 seconds per shot under suitable production conditions
Structure focus
Compartment wall consistency, rim stiffness and stackable geometry
Material compatibility
PP and similar food-grade resins depending on customer application
System matching
Can be reviewed together with the matching lid mould for sealing land, stack height and transport validation
Acceptance focus
Partition filling, rim flatness, lid fit, stack release, cavity weight balance and tray deformation after cooling
Useful RFQ data
Tray and lid drawings, compartment volume ratio, target part weight, resin grade, machine data, filling method and stacking requirement
Number of holes
Match by model
Front and rear mold material
Domestic 2344/s136
Mold base material
P20/4Cr13/Customer specified
Runner
Needle Valve/Needle Point Hot Runner
Customization
Compartment layout, box depth, rib structure, wall thickness and lid matching
03 / Before shipment
The exact checklist is agreed for each project. These are the core records buyers normally use to confirm dimensions, function, output and correction closure before shipment.
View inspection processRecord the trial setup, resin, machine, process window, visible defects and required corrections.
Verify critical product and tooling dimensions against the approved drawing and agreed tolerances.
Check shot-to-shot consistency, thin-wall distribution and deformation risk across representative samples.
Review closure engagement, rim flatness, leak risk, opening force and stacking where the product requires it.
Confirm the practical cycle target under suitable resin, cooling, machine and automation conditions.
Provide agreed samples, trial video, inspection results and correction records for customer confirmation.
04 / Quotation checklist
A drawing or sample is the starting point. Machine, resin, output, closure and acceptance details allow Hengqi to review cavity layout, steel, runner, cooling and automation with fewer assumptions.
Product drawing or physical sample
Capacity, dimensions and target part weight
Resin grade and food-contact requirement
Target cavity number and annual output
Injection machine model and tonnage
Expected cycle time and automation plan
Matching lid, label or sealing requirement
Acceptance standard and delivery schedule
Send your drawing, sample photos and production target. Hengqi will review the project scope before preparing the quotation.
Start WhatsApp review Send formal inquiry05 / Buyer questions
Typical uses include meal prep boxes, institutional food trays and takeaway containers that require separated compartments.
Yes. Hengqi can customize compartment geometry, depth and rib structure from your packaging design requirements.
Provide container and lid drawings or samples, target resin, cycle goals, machine details and expected annual output.
Yes. Lid fit, sealing land width and stack height should be checked together with the tray so the final packaging works reliably in filling, transport and storage.
Yes. Compartment count, volume ratio, rib layout and tray depth can be adjusted from the buyer's serving format, filling method and lid-sealing requirement.
Uneven filling can leave weak partition walls, distorted rims or inconsistent tray weight, which affects lid fit, stacking and production scrap during continuous running.
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