Lunch Box
Commercial-Grade OEM & Private Label Lunch Box Manufacturing
ECOZ manufactures customized, high-volume lunch boxes and meal prep containers engineered for wholesale distributors, kitchenware brands, chain supermarkets, and institutional importers. We focus on measurable manufacturing standards—exact material grades, seal geometry, hinge fatigue resistance, and container nesting density—to deliver product consistency from pre-production sampling to bulk repeat orders.
Whether supplying food-grade stainless steel Bento systems for European retail brands or high-capacity PP meal prep containers for North American distributors, we build your SKUs around strict food-contact compliance, optimized packaging CBM, and retail-ready private labeling.
Targeted Solutions for Supply Channels
Kitchenware & Private Label Brands:
Pantone-matched container body colors, laser-engraved logos, custom inner sleeves, and retail-ready color boxes. We lock down your dielines and specs so every re-order maintains 100% brand consistency.
Supermarkets & Mass Retailers:
Full artwork integration, shrink-wrapping, retail packaging display cartons (PDQ), inner master cartons with printed ITF-14/EAN barcodes, and optimized stacking strength for palletized logistics.
Wholesale Distributors & Importers:
High container-nesting efficiency to maximize unit count per 40ft HQ container, minimizing per-unit ocean freight charges.
Technical Specifications
|
Parameter |
Manufacturing Scope |
Commercial Specification & QA Standard |
|
Product Categories |
Bento Boxes, Multi-Compartment Meal Containers, Stackable Food Storage |
Engineered for high-frequency daily use, institutional food service, and retail distribution |
|
Base Materials |
Food-Grade Virgin PP (Polypropylene) 304/316 Stainless Steel High-Borosilicate Glass Food-Grade Solid Silicone |
Full traceability to raw material batch test reports. Free of BPA, BPS, and recycled scrap contamination |
|
Capacity & Layout |
350 ml to 2,000+ ml Single, Double, Triple, Quad, or Removable Divider Layouts |
Compartment depth and wall clearances sized to prevent internal food migration without reducing total volume |
|
Lid & Closure Mechanisms |
Snap-Fit Buckles, Press-Fit Seals, Heavy-Duty Hinged Latch, Friction-Fit Covers |
Latch mechanisms stress-tested for 5,000+ opening/closing cycles to prevent fatigue breakage |
|
Sealing System |
Injection-Molded or Removable Food-Grade Silicone Gaskets |
Custom gasket Shore A hardness matched to container rigidity to ensure uniform compression |
|
Thermal Performance |
Microwave-Safe, Dishwasher-Safe, Freezer-Safe (Model Specific) |
Thermal limits explicitly verified per material: PP (-20°C to +120°C); Borosilicate (-40°C to +400°C) |
|
Branding Options |
Silk-Screen Printing, Laser Engraving, Heat Transfer, In-Mold Labeling (IML) |
Abrasion-resistant inks tested against 50+ commercial dishwasher wash cycles |
|
Compliance & Testing |
EU No. 1935/2004, EC No. 2023/2006 (GMP), FDA 21 CFR, LFGB, REACH, BPA-Free |
Lot-specific testing declarations provided prior to mass production shipment |
|
Production Lead Times |
Sample Development: 3–7 Working Days Mass Production: 20–25 Days Standard MOQ: 3,000–5,000 units (Subject to Material) |
Fully scalable injection molding and metal stamping lines for multi-container contracts |
Material Engineering
Food-Grade Polypropylene (PP)
We use 100% virgin, food-contact grade PP. Unlike lower-tier manufacturers that blend post-industrial regrind (which causes brittleness and odor transfer), our PP containers offer high impact resistance, smooth surface finishes, and certified microwave and dishwasher compatibility.
304 & 316 Stainless Steel
For metal Bento boxes, we verify steel grade through spectroscopic material analysis. We specify exact sheet thickness (0.5 mm – 0.8 mm) to ensure structural rigidity under lid clamping pressure while keeping overall product weight balanced. Edges are fully rolled or deburred to prevent user injury.
High-Borosilicate Glass
Engineered for thermal shock resistance, allowing immediate transition from freezer storage (-20°C) to oven heating (up to +400°C, excluding lid). Glass bodies are molded with uniform wall thickness to eliminate localized thermal stress points.
Gasket Shore Hardness + Lid Deflection Control + Buckle Clamping Force = Uniform Seal Integrity
Gasket Geometry & Hardness: We tune the Shore A durometer (hardness) of the silicone gasket to match the flex tolerance of the container rim. Too hard, and the buckles strain; too soft, and liquid bypasses the seal.
Lid Deflection Control: Lids are rib-reinforced to prevent central bowing under latch pressure, ensuring equal downward force across all four sides.
Closure Engagement: Snap-latches are engineered with calculated snap-fit tolerances so they lock securely without requiring excessive force from end consumers.
[Quality Control Protocol]
01. Raw Material Audit (Virgin PP Inspection / Steel Grade Verification)
│
02. First-Piece Molding Audit (Dimensional Integrity & Weight Clearance)
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03. In-Line Component Assembly (Gasket Seating & Buckle Tension Test)
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04. Vacuum & Hydrostatic Leak Testing (Sampling per AQL 2.5 Standard)
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05. Logo Adhesion & Dishwasher Fatigue Audit
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06. Export Carton Drop Testing & Master Palletization Audit
Logistics & Packaging CBM Optimization
Shipping hollow containers internationally can result in paying freight for trapped air. Where product geometry permits, we engineer nestable bases and flat-pack lid assemblies, significantly improving master carton packaging density and cutting your landed freight costs per unit.
International Food-Contact Compliance
European Union:
Compliance with Regulation (EC) No 1935/2004 and GMP Regulation (EC) No 2023/2006. Full migration testing (Overall Migration & Specific Migration of Heavy Metals/Plasticizers) per EU 10/2011 standards.
North America:
FDA 21 CFR specifications for direct food contact (e.g., CFR 177.1520 for olefin polymers).
Specialized Standards:
LFGB (Germany), REACH compliance for chemical safety, and certified BPA/Phthalate-free documentation for all components.
To receive an accurate OEM/Private Label quote within 24 hours, please supply your preliminary project specifications:
Target Model & Material: PP..
Capacity & Layout: Volume (ml), dimensions, number of internal compartments
Customization Requirements: Pantone color, logo application technique, retail packaging type
Order Volume & Target Market: Target SKU volume per batch, shipping destination, required compliance certs
Contact our OEM procurement team to request a physical sample or submit your RFQ for technical review.
Certificate
FAQ
We are one of the most professional lunch box manufacturers and suppliers in China, also support customized service with low price. We warmly welcome you to buy bulk lunch box made in China here from our factory. If you have any enquiry about quotation, please feel free to email us.