4 Cavity Plastic Round Small Size Flower Pot Mould

ZHONGYUE supplies 4 Cavity Plastic Round Small Size Flower Pot Moulds (60mm–180mm). Fast cycle, auto-degating, marble PP/PS. DFM & quote in 24h.

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Product Description

4 Cavity Plastic Round Small Size Flower Pot Mould – Multi-Cavity Small Round Planter Injection Mold Manufacturer

ZHONGYUE MOULD specializes in manufacturing high-efficiency 4 Cavity Plastic Round Small Size Flower Pot Moulds for global horticultural suppliers, garden centers, nursery growers, and home decor brands. Unlike single-cavity or large industrial pot molds, our 4-cavity design targets high-volume production of small-diameter planters (60mm, 80mm, 100mm, 120mm, 150mm, 180mm) used for succulents, seedlings, herbs, and promotional giveaways.

We engineer these molds for maximum output per hour, integrating balanced cold runners (or optional hot runner valve gates), efficient cooling channels, and automatic degating systems to achieve cycle times as low as 12–18 seconds (depending on material and wall thickness). Whether you need virgin PP/PS pots, marble-effect decorative planters, or biodegradable PLA/PBAT pots, our mold design accommodates diverse material flows while maintaining consistent wall thickness and drainage-hole integrity

plastic Flower Pot Mould specifications :

Item	Specification / Options
Mold Name	4 Cavity Plastic Round Small Size Flower Pot Mould (60mm–180mm Top Dia.)
Cavity & Core Steel	Cavity: P20 (std.), upgrade 718H (HRC 33–38). Core: P20 / 718H. Drainage pins: SKD61 (HRC 48–52) or BeCu cooled.
Mold Type	Two-plate mold; 4 cavities (1×4 linear or 2×2 radial layout).
Mold Base	LKM / DME Standard (e.g., 350×400mm–450×550mm depending on pot size).
Cavities	4 cavities per shot (identical parts).
Runner System	Cold runner (H-type balanced) standard; Optional 4-drop hot runner (YUDO/SYNVENTIVE valve gate).
Gate Type	Sub-gate / pinpoint gate at inner rim or base recess; auto-degating.
Ejection	Ejector pins (std.); Stripper plate optional for thin walls.
Cooling	Spiral baffles or straight-through channels around core; Manifold-separated circuits.
Venting	0.015–0.02mm parting-line vents; optional vent inserts near gate.
Surface Finish	SPI B1 satin (std.); SPI A1/A2 polish or VDI 27–30 texture optional.
Mold Life Expectancy	≥300,000 shots (P20); ≥500,000 shots (718H).
Recommended Material	PP Copolymer (MFR 10–20), PS (MFR 8–15), PETG, PLA/PBAT (bio-degradable).
Design Software	UG NX, SolidWorks, AutoCAD, Moldflow (Fill + Cool + Warpage).
Tolerance Control	±0.1mm general; wall thickness ±0.08mm; drainage hole position ±0.15mm.
Mould material	Hardness	Mould life
P20	HRC 28-33	>300,000 shots
718	HRC 33-36	>500,000 shots
H13	HRC >43	>800,000 shots
2344	HRC >48	>800,000 shots
S136	HRC 48-52	>1,000,000 shots

Make your next plastic Flower Pot Mould project brighten!

What Is a 4 Cavity Small Round Flower Pot Mould?

A 4 Cavity Small Round Flower Pot Mould is a precision injection mold that produces four identical round planters per shot. The mold typically features:

4-Up Layout — Cavities arranged symmetrically (linear 1×4 or radial 2×2) for optimal platen space utilization.

Small Diameter Focus — Designed specifically for pots ranging from 60mm to 180mm top diameter, with heights of 50mm–150mm.

Thin-Wall Capability — Wall thickness controlled at 1.2mm–2.0mm (optimized for material savings without sacrificing rigidity).

Integrated Drainage System — Molded-in drainage holes (Ø5–10mm) with tapered pins for easy demolding.

Stacking Functionality — Molded stacking beads/feet on the base to allow stable vertical stacking of empty pots.

This configuration is ideal for mass-market gardening products, retail chain private labels, and agricultural seedling trays.

Key Mold Engineering Highlights (4-Cavity Small Pot Optimization)

Balanced Runner System & Flow Analysis

Cold runner with H-type or cross-type layout ensures equal fill pressure and volume to all four cavities. For marble-effect PP/PS, we enlarge runner diameters slightly and polish flow paths (SPI A2) to prevent shear heat that disrupts color patterns. Optional 4-drop hot runner with valve gates eliminates cold sprue and reduces cycle time by 15–20%.

Fast-Cycle Cooling Design

Each cavity features spiral baffles or straight-through cooling channels (Ø8–10mm) spiraling around the core to extract heat evenly. Water manifolds separate inlet/outlet per cavity pair to maintain ΔT ≤ 3–4℃. This supports rapid crystallization of PP/PS and minimizes warpage.

Automatic Degating Mechanism

Sub-gate or pinpoint gate positioned at the pot’s inner rim or base recess. Ejector pins shear the gate cleanly upon ejection—no manual trimming required. For hot runner systems, valve gates close precisely to prevent stringing.

Drainage Hole Pin Cooling & Taper

Drainage pins are tapered (1°–2° draft) and optionally fitted with internal water channels (BeCu or bubbler tubes) to cool thick sections quickly. This prevents sticking and pin breakage during high-speed cycling.

Stacking Foot Geometry Control

Molded stacking rings or feet are engineered with tight tolerances (±0.1mm) to ensure uniform stacking height and prevent wobbling. We simulate 20-high stacks in 3D to validate stability.

Material Versatility: PP, PS, PETG, PLA

Standard design supports PP (MFR 10–20) and PS (MFR 8–15). For biodegradable PLA/PBAT blends, we adjust cooling rates and vent depths to accommodate higher melt viscosity and sensitivity to thermal degradation.

Surface Finish Options

Standard: SPI B1 satin finish for easy release. Optional: High-gloss polish (SPI A1/A2) for premium decorative pots, or light texture (VDI 27–30) for scratch concealment.

Ejection System Reliability

Ejector pins strategically placed at base ribs and stacking feet. Optional stripper plate ejection for ultra-thin-walled designs (<1.5mm) to prevent deformation.

Applications of 4-Cavity Small Round Flower Pots

Industry / Use Case	Mold Feature Adaptation
Home & Garden Retail	60mm–120mm pots for herbs, succulents; high-gloss or textured finish; private-label branding.
Agricultural Seedling & Nursery	80mm–150mm pots; thin-wall (1.2–1.5mm) for cost efficiency; integrated drainage holes.
Promotional & Event Giveaways	60mm mini pots; fast cycle (12–15s); bright colors via marble-effect PP/PS.
Biodegradable Packaging	PLA/PBAT material compatibility; adjusted cooling & venting for eco-friendly resins.
Decorative Indoor Planters	100mm–180mm pots; optional metallic/pearl masterbatch; high-gloss polish.

Our Manufacturing & Validation Process (4-Cavity Small Pot Mold)

Flow & Cooling DFM Review — Analyze wall thickness (1.2–2.0mm), gate location, runner balance, and cooling channel layout. Simulate fill pattern to ensure simultaneous cavity filling. Free DFM report.

Precision Machining — CNC milling of cavity/core with ±0.02mm accuracy. Gun-drilling of spiral cooling channels. Polishing to specified SPI finish.

Assembly & T1 Trial — Run on in-house machine with your specified material (PP/PS/PLA). Verify cycle time, wall uniformity, drainage hole quality, and automatic degating. Supply trial video + samples + CMM report.

Optimization & Approval — Fine-tune cooling flow or ejection timing if needed. Prepare mold for shipment with spare ejector pins and drainage pins.

After-Sales Support — 1-Year warranty, remote technical guidance, and readily available spare parts.

Why Choose ZHONGYUE MOULD for Your 4-Cavity Small Flower Pot Mold?

Multi-Cavity Efficiency Expertise — Proven experience in balancing 4-cavity layouts for small parts to maximize hourly output.

Fast-Cycle Engineering — Optimized cooling and ejection systems reduce cycle times by 10–25% compared to conventional designs.

Material Flexibility — Full support for virgin PP/PS, marble-effect resins, and biodegradable PLA/PBAT blends.

Quality Assurance — Rigorous dimensional checks and trial runs ensure consistent pot quality across all four cavities.

Global Export Experience — Molds supplied to Europe, Americas, Asia, and Africa for leading horticultural brands.

Transparent Service — Weekly progress updates, detailed DFM reports, and responsive after-sales support.

Frequently Asked Questions — 4 Cavity Small Round Flower Pot Mould

Q: What is the typical cycle time for a 4-cavity small pot mold?

A: For a 100mm pot with 1.5mm wall thickness in PP, expect 14–18 seconds (including injection, cooling, and ejection). Cycle time varies with material, wall thickness, and cooling efficiency.

Q: Can you make molds for marble-effect or pearlescent pots?

A: Yes. We adjust runner diameters, polish flow paths, and control shear heat to preserve color patterns. We also advise on masterbatch let-down ratios and processing temperatures.

Q: Do you support biodegradable materials like PLA?

A: Absolutely. PLA requires lower melt temperatures and slower cooling. We modify cooling channel layouts and vent depths accordingly to prevent brittleness and warpage.

Q: How do you ensure all four cavities fill equally?

A: We use balanced H-type or cross-type runner systems and perform Moldflow analysis to verify simultaneous filling. Gate sizes and runner dimensions are carefully calculated.

Q: What information do you need for a quotation?

A: Please provide 2D drawings (PDF/DWG) + 3D models (STP/IGS) of the pot, specifying top diameter, height, wall thickness, material type (PP/PS/PLA), desired cycle time, and annual volume.

Request a Quote for Your 4 Cavity Small Round Flower Pot Mould

Send us your pot drawings or samples along with your production requirements. ZHONGYUE MOULD will deliver a comprehensive DFM analysis and competitive quotation within 24–48 working hours.

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.