Plastic Cutlery Injection Mould Suppliers
Source plastic cutlery injection moulds from verified B2B suppliers on Towobo. Disposable and reusable plastic cutlery — forks, knives, spoons, and sporks — are produced in high-cavity injection moulds running standard thermoplastics. This guide covers cavity count selection, mould steel grades, lead time expectations, the T1 trial process, and what differentiates a reliable plastic cutlery mould supplier.
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Browse Plastic Cutlery Mould Suppliers on Towobo →Cavity count, mould design, and material selection
Plastic cutlery moulds are characterised by high cavity counts — from 4-cavity tooling for premium or custom designs to 32, 48, or 64-cavity moulds for high-volume commodity cutlery production. Higher cavity counts require larger machines (higher clamping force and shot weight) but reduce the per-piece tooling cost and increase output per hour. A 32-cavity fork mould running a 7-second cycle can produce approximately 16,000 forks per hour. Hot runner systems are standard for high-cavity cutlery moulds — they eliminate the sprue and runner waste generated by cold runner tooling, reducing material cost per piece significantly for high-volume production. For disposable cutlery, the typical material is polypropylene (PP) for its food-contact approval, flexibility, and cost. Polystyrene (PS) is used for particularly thin, rigid cutlery profiles. For biodegradable cutlery, CPLA (crystallised PLA) and PBSA blends are used — these require different processing temperatures and cooling conditions than PP, and the mould should be specified for the target material. Confirm material compatibility with the mould maker before ordering.
Tool steel grades, surface treatment, and mould life
Mould steel selection determines the tool's wear resistance, corrosion resistance, and expected service life. For standard-volume PP cutlery production, P20 (pre-hardened steel) is adequate and cost-effective for up to approximately 500,000 shots with proper maintenance. For high-volume production targets (above 1 million shots), specify H13 or 718H (a modified pre-hardened steel) for better wear resistance and longer service life. For PLA or PHA biodegradable materials, which are more corrosive to steel than PP, specify stainless steel (e.g., S136/1.2083) for the mould cavities to prevent corrosion and pitting that would affect part surface quality. Surface treatment: electro-polishing or hard chrome plating of cavity surfaces reduces friction and improves ejection for thin cutlery profiles. Mirror polish is standard for clear cutlery applications. Ask the mould maker to confirm the expected mould life (in shots) under the specified operating conditions, and what major maintenance items are expected at key shot milestones.
Lead time, T1 trials, and commissioning
For a standard PP cutlery mould from a Chinese toolmaker, lead time from drawing approval to T1 trial is typically 6–10 weeks for standard designs; 10–16 weeks for high-cavity or complex designs. The T1 trial produces the first moulded samples from the tool for dimensional inspection and visual assessment. Expect to request T2 corrections for minor dimensional deviations, gate vestige adjustment, or ejector mark optimisation — T2 lead time is typically 2–4 weeks. A well-specified initial drawing review (including shrinkage allowance for the intended material, gate location, ejector layout, and cooling circuit design) reduces the number of correction rounds. Request samples from T1 with full dimensional report against drawing. Confirm the mould maker's process for shipping the mould — pack in a wooden crate with rust preventative on all steel surfaces for international shipping.
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Browse Plastic Cutlery Mould Suppliers on TowoboFrequently asked questions
What injection moulding machine is needed for a 32-cavity cutlery mould?
A 32-cavity PP fork mould typically has a projected area of approximately 1,600–2,000 cm². At cavity pressures of 400–500 bar for thin-wall PP, the required clamping force is approximately 640–1,000 tonnes. A 800–1,200 tonne machine is appropriate. Shot weight per cycle for 32 standard forks (approximately 3g each) is approximately 96–120g of PP — a machine with 200–400g shot capacity provides adequate margin. Confirm the exact clamping force requirement with your mould designer based on the specific cavity layout.
Where are most plastic cutlery moulds manufactured?
Taizhou (particularly Huangyan district) and Ningbo in Zhejiang province, China, are the global centre for plastic cutlery mould manufacturing. Hundreds of specialist mould makers operate in this region, producing the majority of the world's supply of food service plastic moulds. Quality and capability vary — request sample moulds, visit (or video-tour) the facility, and check references from buyers in similar applications before committing to a large-cavity tool order.
What is the typical price for a 16-cavity PP fork mould?
A 16-cavity PP disposable fork mould from a mid-tier Chinese toolmaker typically costs between USD 12,000 and USD 30,000 depending on cavity material, hot runner system, surface treatment, and expected tool life. High-cavity (48–64 cavity) moulds for commodity disposable cutlery can range from USD 35,000 to USD 80,000+. European toolmakers cost 3–5x more but offer tighter tolerances and longer guaranteed mould life. For branded or premium cutlery with custom profiles, budget for design and prototype costs before production tooling.
Can I use the same mould for PP and PLA cutlery?
In principle, the same mould geometry can be used for both PP and PLA — but the mould materials and surface treatment should be selected with PLA in mind from the outset. PLA is more corrosive to standard mould steel than PP, particularly at processing temperatures. Using a P20 mould designed for PP with PLA will likely cause surface pitting in the cavities over time, degrading part quality. If you plan to run both PP and PLA (or transition to PLA in future), specify S136 stainless steel or equivalent corrosion-resistant cavity material from the start.
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