China PET Preform Molds Factory

16-Cavity Cosmetic Lower Cover Mold – Precision Inner Plug & Base Ring Tooling | Professional China Manufacturer – Taoyuan Mould

Quality Assurance for Cosmetic Lower Covers

Test	Method	Standard
Thread gauge test	GO/NO-GO thread plug gauge	Smooth engagement, no binding
Snap-fit force	Pull/push force gauge	Customer-specified range
Dimensional inspection	CMM + vision system	±0.02mm
Surface quality	Visual + light box	No scratches, sink marks, or flow lines
Leak test (if sealed)	Vacuum or pressure decay	Zero leakage
Cycle consistency	24-hour run test	<1% variation in part weight

Typical Cosmetic Cap Assembly – Upper + Lower Cover

Our 16-cavity cosmetic lower cover mold is often used together with our 12-cavity cosmetic upper cover mold to produce complete closures:

Component	Recommended Mold	Function
Upper cover (decorative lid)	12-cavity cosmetic upper cover mold	Outer appearance, flip-top or screw-on
Lower cover (functional base)	16-cavity cosmetic lower cover mold	Threads, sealing, pump mounting

Descriprion

Taoyuan Mould – Professional Bottle Cap Mold Manufacturer

We are a specialized manufacturer of multi-cavity cosmetic closure molds, offering our 16-cavity cosmetic lower cover mold – also known as the inner plug, base insert, screw ring, or lower housing for premium beauty packaging.

The lower cover is the functional base component that attaches to the bottle neck. It typically features internal threads, snap-fit structures for the upper lid, sealing lips, and often a pump mounting ring or orifice plate. This component requires exceptional dimensional precision, smooth surface finish, and consistent snap-fit force. Our 16-cavity mold delivers all of these at high output.

Key Features at a Glance

Feature	Specification
Cavity count	16 cavities
Part name	Cosmetic lower cover (inner plug / base ring / screw ring)
Compatible materials	PP, ABS, SAN, PMMA (acrylic), PC, POM, food-grade plastic
Typical diameter range	18mm – 50mm
Typical height range	10mm – 35mm
Surface finish	SPI A-1 diamond polish / Matte / Textured (cavity side)
Thread type	Multi-start / Continuous / Interrupted (custom)
Steel type	Stainless steel / Hardened tool steel (S136, 1.2343, H13)
Cooling system	Conformal + baffled cooling for thread cores
Estimated cycle time	12 – 18 seconds
Injection machine requirement	200 – 350 ton clamping force
Mold life	1.5 – 2.5 million shots

Technical Advantages (Why Our 16-Cavity Cosmetic Lower Cover Mold Stands Out)

Advantage	Benefit for You
16-cavity balanced hot runner	Equal filling of all 16 cavities – no weight variation
Precision thread cores	Interchangeable thread inserts – easy repair/replacement
High-gloss cavity surface	Mirror-polished inner walls – perfect for clear or colored materials
Snap-fit precision (±0.02mm)	Reliable mating with upper cover, batch after batch
Anti-warpage cooling	Conformal cooling around threads – maintains roundness
Valve gate injection	No gate mark on visible sealing surface
Quick color change capable	Suitable for small-batch, multi-color cosmetic runs

Cosmetic Lower Cover Design Options (Fully Customizable)

Feature	Available Options
Thread type	Multi-start / Single-start / Continuous / Interrupted
Sealing structure	Internal lip seal / External gasket groove / Flat seal
Pump interface	Snap ring / Screw thread / Press-fit
Orifice / hole pattern	Solid / Single hole / Multiple small holes (for lotion dispensing)
Inner surface finish	High gloss / Matte / Soft-touch
Logo / marking	Cavity engraving for part number or material code
Color	Natural / Custom color / Two-shot (hard + soft material)

Applications – Where Our Cosmetic Lower Cover Mold Is Used

Application	Typical Product	Lower Cover Function
Lotion pump bottles	Hand & body lotion	Threaded pump mounting ring
Cream jars	Face cream, moisturizer	Inner sealing plug + thread ring
Lip gloss tubes	Liquid lip color	Screw base with orifice
Foundation bottles	Liquid foundation	Pump or dropper mounting base
Shampoo & conditioner	Hair care bottles	Snap-fit lower housing
Perfume bottles	Fragrance	Precision thread collar

Why Choose Taoyuan Mould as Your 16-Cavity Cosmetic Lower Cover Mold Manufacturer?

Criterion	Taoyuan Mould Advantage
Specialization	Pure focus on cap, closure, and cosmetic component molds
Multi-cavity expertise	4 / 6 / 8 / 12 / 16 / 24 / 32 / 48 cavities
Cosmetic grade finishing	SPI A-1 diamond polish + no weld lines
Thread precision	±0.02mm on pitch diameter
Quality control	CMM inspection + sample molding + functional test
Lead time	35 – 50 days
Warranty	12 months + lifetime spare parts support
Global shipping	Sea / air / express worldwide

Technical Specification Table (Detailed)

Parameter	Value
Number of cavities	16
Mold base standard	LKM / HASCO / DME (customizable)
Hot runner system	YUDO / Mold-Masters / INCOE (optional)
Gate type	Valve gate (no gate mark on sealing surface)
Thread core type	Rotating unscrewing (hydraulic or rack & pinion) or forced ejection
Ejection system	Stripper plate + ejector pins + thread core rotation
Cooling channel type	Baffled + spiral cooling for thread cores
Max mold dimensions	600 x 600 mm (adjustable)
Part weight per cavity	2 – 8 grams (depending on size)
Thread tolerance	±0.02 mm on pitch diameter
Surface roughness (cavity)	Ra < 0.05 μm (mirror finish)
Water connectors	NPT / BSP / quick-connect
Mold weight (approx.)	900 – 1400 kg

🔧 Cap Mould Engineering
Deep-Dive Details

Taoyuan Mould — Precision Tooling for High-Performance Caps & Closures

Trusted by Global Brands · 500+ Moulds Delivered

Why Taoyuan Mould? – Our Core Strengths

Taoyuan Mould has been a dedicated cap & closure mould manufacturer for over 18 years. We combine advanced German-style engineering, high-speed 5-axis machining, and a relentless focus on precision & durability. Our moulds are built for extreme productivity: multi-cavity hot runner systems up to 64 cavities, cycle time reduction up to 22%, and tool life exceeding 5 million shots.

We deliver turnkey solutions — from moldflow analysis and 3D design to sampling, mass production support, and spare parts service. Our workshop is ISO 9001:2025 certified, with in-house CMM and full inspection protocols.

300+ moulds/year

5-Axis CNC · EDM · Wire EDM

Lifetime ≥5M cycles

Lead time from 25 days

Exporting to 20+ countries

40+ senior engineers

Cap Mould Manufacturing Excellence

Engineered for high-speed production

Our cap moulds integrate hot runner balance technology, conformal cooling, and high-cavity architecture. We specialize in beverage caps, pharmaceutical closures, oil caps, flip-top lids, and tamper-evident designs. Each mould is simulated with Moldflow to eliminate warpage and optimize filling patterns.

Hot Runner Systems Conformal Cooling Mirror Polishing 2K / Overmolding Options

Technical Specifications (Standard Series)

Cavities: 8 to 64

Mould Steel: S136 / 2316 / Stavax

Hardness: HRC 48-52

Gate type: Pinpoint / Valve gate

Materials: PP, PE, PET, HDPE, PS

Cooling: High-efficiency baffles & spiral

Integrated Quality Assurance Workflow

Mold Design

Moldflow + 3D CAD/CAM

Precision Machining

5-axis / EDM / Wire EDM

Full Inspection

CMM + Optical comparator

Trial & Sampling

On-site injection testing

Every mould is delivered with a detailed inspection report, sample parts, and maintenance manual.

Global Technical Support

Taoyuan Mould provides lifetime technical assistance, mould repair, and spare parts supply. Our team is ready for on-site commissioning or remote troubleshooting. We also offer free training for mould maintenance and optimization.

Fast spare parts delivery

Operator training

Request Your Custom Cap Mould Quote

Tell us your cap specifications, cavity number, and material — we’ll provide a professional DFM report within 48 hours.

Contact Engineering Team

Email: mavis@taoyuanmould.com | WhatsApp: +86-15657610896

Taizhou Huangyan Taoyuan Mould Co., Ltd.

How Can We Help You?

Mavis Liu

Taizhou Huangyan Taoyuan Mould Co., Ltd.
008615657610896
mavis@taoyuanmould.com

Make Appointment

You can call us or leave a request here. Contact us via phone: +86-15657610896 or email: mavis@taoyuanmould.com

16-Cavity Cosmetic Lower Cover Mold – Precision Inner Plug & Base Ring Tooling | Professional China Manufacturer – Taoyuan Mould

Share This Product

16-Cavity Cosmetic Lower Cover Mold – Precision Inner Plug & Base Ring Tooling | Professional China Manufacturer – Taoyuan Mould

Quality Assurance for Cosmetic Lower Covers

Typical Cosmetic Cap Assembly – Upper + Lower Cover

Key Features at a Glance

Technical Advantages (Why Our 16-Cavity Cosmetic Lower Cover Mold Stands Out)

Cosmetic Lower Cover Design Options (Fully Customizable)

Applications – Where Our Cosmetic Lower Cover Mold Is Used

Why Choose Taoyuan Mould as Your 16-Cavity Cosmetic Lower Cover Mold Manufacturer?

Technical Specification Table (Detailed)

🔧 Cap Mould Engineering Deep-Dive Details

Why Taoyuan Mould? – Our Core Strengths

Cap Mould Manufacturing Excellence

Engineered for high-speed production

Technical Specifications (Standard Series)

Integrated Quality Assurance Workflow

Mold Design

Precision Machining

Full Inspection

Trial & Sampling

Specialized Cap Mould Series

Global Technical Support

Request Your Custom Cap Mould Quote

Mavis Liu

Make Appointment

🔧 Cap Mould Engineering
Deep-Dive Details