50L Storage Box Mould – Custom Plastic 50L Storage Container / Organization Crate Injection Mold Manufacturer

ZHONGYUE MOULD is a professional Chinese injection mold manufacturer supplying 50L Storage Box Moulds / 50 Liter Household Storage Container Injection Molds (Stackable Organization Crates, Closet/Toy/Document Boxes) to global household-products wholesalers, supermarkets, and private-label brands. The 50L storage box is a mid-to-large household organizer — most commonly molded in PP (Polypropylene, MFR 8–15 g/10min, optionally with UV stabilizer & color masterbatch) with a smooth or light VDI 27–30 leather grain outer surface (SPI B1/B2 satin inner face) for easy cleaning and attractive appearance. Our 50L box molds feature central baffle + BeCu (Beryllium Copper) insert cooling at bottom corner radii, hidden submarine gate on the top flange or inner rim (no visible gate vestige), DFM-verified wall thickness (2.0–3.0mm), and a single-cavity (1×1) layout with optional 2-cavity or 4-cavity matching lid mold for balanced daily output.

From 50L rectangular stackable storage boxes (with/without handles), matching snap-fit or hinge lids (clear/colored), to divider insert trays (optional separate mold), we provide full DFM review and Moldflow cooling/fill analysis before steel cutting.

Plastic Injection Storage Box Mould specifications :

Make your next Plastic Storage Box Mould project brighten!

What is a Plastic Storage Box Mold and How Does It Work?

A Plastic Storage Box Mold is a custom-built cavity-and-core tool used in an injection molding machine. The mold consists of a hollow cavity (shaping the outer box contours, handles, stacking lips) and a core (forming the inner volume). When PP resin is heated to melt (~180–230℃) and injected under high pressure into the closed mold, the molten plastic fills every corner — including handle recesses and stacking ledges. After a short cooling phase (typical 25–40s cycle for 50L PP box), the plastic solidifies, the mold opens, and the finished storage box is ejected.

This process — injection molding — is the industry standard for high-efficiency, repeatable production of dimensionally stable household containers. A well-built storage box mold from ZHONGYUE MOULD can produce 300,000 to 1,000,000+ shots with consistent wall thickness, sharp corner definition, and clean parting-line finish.

Key Features of a Durable & Precise 50L Storage Box Mold

A durable 50L storage box mold must withstand high clamp force (typically 650T–1200T machines) and repeated thermal cycling. Our molds are built with:

High-Grade Mold Steel — Cavity & Core in P20 (pre-hard HRC 28–33) standard, upgradeable to 718H (HRC 33–38) or 2738HH for longer life & better polish/texture retention.

Precision-Machined Cavity Dimensions — PP shrinkage ~1.2–1.8% accurately compensated; box length/width ±0.2mm, stacking lip flatness ±0.3mm, ensuring perfect lid-seat & stackability across batches.

Efficient Baffle + BeCu Cooling System — Ø10–12mm central baffle through core + BeCu (MOLDMAX™/Ampcoloy) insert at bottom corner radii where wall thickens — isolates ΔT ≤ 3–4℃ inlet–outlet, shortens cycle & reduces warpage.

Smooth Inner Surface & Controlled Outer Texture — Core polished to SPI B1/B2 (easy-release, smooth box interior); Cavity SPI B1 satin standard or light VDI 27–30 leather grain on customer request.

Wear-Resistant Slides / Inserts (if handles have undercut) — H13(2344 ESR) nitrided angled slides or loose insert for side-handle recess; checked for interference in 3D assembly.

Deep-Venting Design — 0.01–0.015mm parting-line vents + vent pins at last-fill zone to prevent burn/short-shot on deep 300–400mm draw.

Types of Plastic Storage Box Molds We Build

Benefits of Using a High-Quality 50L Storage Box Mold from ZHONGYUE MOULD

Product Consistency = Customer Satisfaction — Every 50L box stacks flush, lid seats square, dimensions repeatable batch-to-batch.

Strength & Structural Integrity — Correct wall-thickness distribution (2.0–3.0mm) & corner reinforcement designed in DFM → boxes hold heavy loads without bulging or cracking.

Shorter Cycle & Less Scrap — BeCu-localized cooling + balanced baffle → reduced cooling time (25–40s typical), fewer sink/splay rejects, lower unit cost.

Design Flexibility — Mold accomodates embossed logo, optional VDI light grain or high-gloss zone (S136 insert), integrated handle recess, labeling area, color-MB change via same mold.

Lid-Box Compatibility Ensured — We verify lid-seat clearance (0.2–0.4mm) using both body & lid drawings before steel cutting.

Applications Across Industries & Home Use

Choosing the Right Mold Manufacturer — Why ZHONGYUE MOULD?

Selecting your injection mold partner is critical. ZHONGYUE MOULD has 15+ years' experience in household commodity molds — storage boxes (5L–120L), crates, chairs, dust bins, flower pots — with in-house CAD/CAM/CAE (UG NX, Pro/E, SolidWorks, Moldflow), full-size CNC & EDM, and export track record to Europe, North & South America, Southeast Asia, Middle East.

We don't just "make a mold" — we review your part drawing, run DFM & Moldflow cooling/warp analysis, suggest wall-thickness / gate / ejection improvements, and only proceed to steel cutting after your sign-off. Each mold ships with T1 trial video, sample parts + CMM report, operation manual & spare-parts list.

Our 50L Storage Box Molding Procedure at ZHONGYUE MOULD

3D Product & Mold Design (DFM Stage) — Receive your 2D/3D (STP/IGS/X_T); analyze wall thickness (2.0–3.0mm), draft angle (≥1.5° smooth / +0.5° if light grain), gate location (submarine on top inner flange), cooling layout (central baffle + BeCu spec.), and lid-match clearance. Provide DFM report & improvement suggestions — free of charge.

Material & Steel Confirmation — P20 (std.) or 718H/2738HH per volume; mold base LKM/DME/HASCO; hot runner (YUDO/SYNVENTIVE) or cold sub-gate per preference.

Precision Machining — High-speed CNC rough/finish cavity & core, deep-hole drilling for cooling baffle, H13 slide nitriding & hand-fit, BeCu insert installation & thermal-contact check, SPI B1/B2 polish or VDI light etch.

Assembly, T1 Trial & Correction — Run on in-house machine, check ovality/flatness, wall thickness scan, lid-seat fit (if lid sample available), supply trial video + samples + dimensional report. Fine-tune if needed.

Final Packaging & Shipment — Fumigation-free heavy-duty wooden case; mold manual; spare parts (ejector pins, water nozzles, sprue bushing, slide spring); steel certs & heat-treatment docs.

After-Sales Support — 1-Year warranty (non-man-made damage), free spare parts, remote technical guidance for re-cutting vents / adjusting ejection.

Why Choose ZHONGYUE MOULD for Your 50L Storage Box Mould?

Rich Household Mold Experience — 5L–120L storage boxes, crates, chairs, dust bins, rattan baskets built in-house

In-house DFM & Moldflow Cooling/Warp Analysis — Wall thickness, BeCu location, lid-body clearance verified beforesteel cutting

BeCu Cooling + Central Baffle Expertise — Faster cycle, less warp, longer mold life

Strict QC & Transparent Progress — Weekly machining photos, CMM inspection, T1 sample approval (fit-check with lid) before shipment

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

1-Year Mold Warranty + Spare Parts Supply (ejector pins, BeCu insert, slide springs)

Frequently Asked Questions — 50L Storage Box Mold

Q: Do you also make the matching lid mold?

A: Yes. We quote the 50L box body as 1×1 cavity and the lid as 2-cavity or 4-cavity mold (shorter cycle) to balance daily output. Lid can be PP (opaque/colored) or clear PS/ABS (separate quote).

Q: What steel do you recommend for a 300k–500k shot program?

A: P20 (HRC 28–33) is cost-effective for 300k+ shots. For 500k–1M shots or better surface retention with light VDI grain, we recommend 718H (HRC 33–38) or 2738HH.

Q: Submarine gate or hot runner?

A: Default is cold sub-gate on inner top flange (hidden vestige, auto-degating) — simple & reliable. Hot runner (YUDO/SYNVENTIVE 1-tip open) is optional for high-volume runs to eliminate runner scrap.

Q: Can you add a logo or texture?

A: Yes — logo via changeable insert (easy swap for private-label); VDI 27–30 light leather grain EDM+acid etch available on outer cavity; inner core stays SPI B1 satin polish.

Q: What do you need for a quotation?

A: 2D drawing (PDF/DWG) + 3D model (STP/IGS/X_T) OR clear photos with dimensions (L×W×H, wall thickness, weight, capacity), annual volume, preferred cavity count for lid (2×1 etc.), and material (PP MFR / UV yes/no). If you also want lid mold, please share lid sketch/dimensions or confirm "same perimeter as body top".

Request a Quote for Your 50L Storage Box Mould

Send your 50L storage box 2D drawing + 3D model (or sample photos with detailed dimensions) and project requirements. Tell us if you also need the matching lid mold. ZHONGYUE MOULD will provide a free DFM report + Moldflow cooling/warp summary + formal quotation within 24–48 working hours.

Contact us now to start your 50L Plastic Storage Container / Organization Crate 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.