50L Storage Box Lid Mould

50L Storage Box Lid Mould – Custom Plastic 50L Storage Container Lid / Cover Injection Mold Manufacturer

ZHONGYUE MOULD is a professional Chinese injection mold manufacturer supplying 50L Storage Box Lid Moulds / Plastic 50L Storage Container Lid Injection Molds (Snap-fit or Hinged Box Covers) to global household products wholesalers, supermarkets, and private-label brands. The 50L storage box lid is a shallow-draw component (depth typically 30–70mm) molded in PP (MFR 8–15 g/10min, color-matched to body or clear PS/ABS for premium lines) with a smooth satin-polish outer face (SPI B1/B2) and inner snap-fit ribs engaging the box top flange. Our lid molds are commonly designed as 2-cavity or 4-cavity (2×1, 2×2, or 1+1 L+R for contoured lids) to balance the slower cycle of the 50L box body (1×1). Features include hidden submarine gate on inner rim, micro angled-lifters or shallow slides for snap-clip undercuts, optional silicone-seal groove, and DFM verification of lid-to-body seating clearance (0.2–0.4mm).

From snap-on storage box lids (opaque PP color-match), clear viewing window lids (PS/ABS insert or separate clear lid mold), to gasket-groove lids for dust-proof storage, we provide full DFM review before steel cutting.

Plastic Injection Storage Box Mould specifications :

Make your next Plastic Storage Box Mould project brighten!

Key Mold Engineering Highlights for 50L Storage Box Lid Molds

Multi-Cavity for Output Balance (2×1, 2×2, 4×1) — 50L box body is 1×1 (cycle ~25–40s); lid cycles faster (~10–18s) → 2-cavity or 4-cavity lid mold matches daily throughput without over-producing lids. Runner Y-branched & balanced per cavity fill time in DFM.

Snap-Fit Clip Undercut — Micro Angled Lifter or Shallow Slide — 1–2 small lifters (travel 3–10mm) or shallow angled slide withdraw snap-clip that engages 50L box top flange; H13 nitrided inserts for wear; interference checked in 3D assembly.

Shrinkage Compensation for PP Lid (Shallow-Draw Rectangle/Round) — PP shrinkage ~1.2–1.8%; lid perimeter / flange seat slightly enlarged per Moldflow-verified shrink; lid-to-body clearance controlled at 0.2–0.4mm (checked with your box-body drawing/dims).

Hidden Submarine (Latent) Gate on Inner Flange / Back Face — Gate vestige invisible from outer visible face; cold runner Y-branch standard for multi-cavity; hot-tip (open) optional for single-cavity clear PS premium lid.

Thin-Wall Cooling & Short Cycle — Baffle Ø6–8mm + peripheral bubbler in core; isolated circuit; typical cycle 10–18s; 0.01–0.015mm parting-line vents to prevent burn on thin sections.

Surface Finish — Satin Polish Standard / High Gloss Optional — Cavity SPI B1/B2 satin (standard PP lid); SPI A2 high-gloss (S136 insert) optional for clear/premium ABS lid; NO rattan/VDI weave etching unless specifically requested as special decor-version. Core polished SPI B1 for easy release.

Optional Silicone-Seal Groove & Logo Insert — Machined O-ring groove in core; changeable logo emboss/deboss insert on non-visible inner side or back face.

Recommended Mold Steel for 50L Storage Box Lid Molds

Our Mold Manufacturing & Validation Process

Project Kick-off & DFM Review — Analyze lid wall thickness (1.2–2.0mm typ.), snap-clip undercut & lifter stroke, gate location & runner Y-branch balance for multi-cavity, lid-to-body seating clearance (NEED box-body top flange dims / drawing). Suggest cavity number to match your 50L body mold output ratio.

Mold Design Approval (3D) — Full assembly with cooling baffle layout, micro-lifter/slide detail with interference check, runner balancing simulation, venting strategy (0.01–0.015mm parting-line).

Precision Machining — High-speed CNC rough/finish cavity, core/cavity SPI B1/B2 (or S136 A2 for gloss zone), H13 micro-lifter nitriding & hand-fitting, logo insert pocket machined.

Assembly & T1 Trial — Run on in-house injection machine; check snap-fit on 50L box body sample (sent or purchased separately), gate vestige, cooling cycle (~10–18s); supply trial video + sample lids + dimensional check.

Correction & Final Approval — Fine-tune lifter timing if needed; ship in fumigation-free case with mold manual & spare parts list (micro-lifter spring, ejector pins, sprue puller).

After-sales Support — 1-Year mold warranty, free spare parts for non-man-made damage (esp. micro-lifter spring/pins), remote technical guidance.

Why Choose ZHONGYUE MOULD for Your Household Mould?

Rich Household Mold Experience — 5L–120L storage boxes (body + lid sets), rattan bins, chairs, crates, baskets built in-house

In-house DFM with Body-Lid Fit Check — Verify lid-to-box flange clearance (0.2–0.4mm) using your body drawing/dim before steel cutting; advise optimal cavity count (2×1 / 2×2) to match body output

Multi-Cavity & Micro-Lifter Expertise — Balanced Y-branch runner, small snap-clip lifters/slides correctly calculated; S136 high-gloss zone optional for clear/premium lid

Strict QC & Transparent Progress — Weekly machining photos, T1 sample approval (fit-check on body sample) before shipment

Export Experience — Molds shipped to Europe, North America, South America, Southeast Asia, Middle East

1-Year Mold Warranty + Spare Parts Supply (micro-lifter springs, ejector pins)

Frequently Asked Questions — 50L Storage Box Lid Mold

Q: What cavity count should I choose — 1×1, 2×1 or 2×2?

A: 50L box body is usually 1×1 (cycle ~25–40s). Lid cycles faster (~10–18s), so we recommend 2-cavity (2×1) or 4-cavity (2×2 or 4×1) to roughly balance daily output. Tell us your body cavity count & daily volume — we'll calculate the optimal lid cavity number.

Q: Does the lid mold need the box body drawing?

A: Strongly recommended — we need the box top-rim Ø or L×W, flange thickness, and snap-groove location (or send the body 3D) to verify lid seating clearance (0.2–0.4mm) and snap-clip engagement before cutting steel.

Q: What surface finish — any rattan/woven texture?

A: Standard is SPI B1/B2 satin polish (no texture) for PP lids. SPI A2 high-gloss (S136 insert) optional for clear PS or premium ABS lid. VDI/rattan cane etching NOT applied unless you order a special decor-version lid to match rattan box body.

Q: Can you add a groove for silicone seal gasket?

A: Yes — machined O-ring/gasket groove in core; we can also advise groove cross-section (typically 2.0–3.0mm wide × 1.5–2.0mm deep) per standard silicone cord size.

Q: What do you need for a quotation?

A: 2D drawing (PDF/DWG) + 3D model (STP/IGS/X_T) of the lid AND preferably box-body top flange dims or 3D; tell us your body mold cavity number (1×1 etc.), annual volume, preferred lid cavity (2×1 / 2×2), and material (PP MFR / GPPS / ABS).

Request a Quote for Your 50L Storage Box Lid Mould

Send your 50L storage box lid 2D drawing + 3D model (and ideally box-body top flange dims/file) and project requirements. Tell us your 50L body mold cavity count — ZHONGYUE MOULD will provide a free DFM review with lid-body fit check + cavity-number recommendation + formal quotation within 24–48 working hours.

Contact us now to start your 50L Plastic Storage Container Lid / Cover Injection Mold project!

How we processing the project?

About us

Driven by the philosophy:

“Quality Makes the Future, Focus Creates Professional”

Zhongyue Mould is a leading company in the plastic injection air conditioner Cover mould industry. Our highly experienced team of engineers and designers have many decades of combined experience in plastic air conditioner Cover mould design and manufacturing. We provide a comprehensive service, specializing in the production of high-quality and high-precision air conditioner Cover moulds. We have also assisted numerous customers in customizing various types of plastic air conditioner Cover moulding lines.

We can also offer comprehensive assistance in the management of your production process. The procurement department will purchase high-quality raw materials, while the technical department will select the appropriate plastic formula. In accordance with the parameters of the plastic air conditioner Cover mould life requirements and market positioning, we will select the most suitable plastic air conditioner Cover parameters, structure, etc. Our extensive production capacity allows us to deliver plastic air conditioner Covers promptly, at competitive prices and with guaranteed quality.