Custom Packs Supplier & Factory

Global Leader in Certified Child-Resistant Metal Packaging Solutions

CR Tin: Driving Packaging Innovation Since 2016

Under our premium brand Andylots Tin Box Packaging Co.,Ltd, we provide streamlined, single-source metal packaging engineering services, merging security compliance with brand aesthetics.

2016
Inception of specialized child-resistant engineering, setting the groundwork for custom compliant packaging frameworks globally.
12+
Distinct certified child-resistant structures fully validated for rapid licensing and immediate compliance deployment.
8+
Fully automated, high-precision metal stamping and assembly lines to ensure maximum quality and scalable production limits.
30 Days
Turnaround timeline from initial engineering design and 3D modeling to physical prototyping, mold layout, and compliance certification.
CR Tin Manufacturing Facility

Comprehensive Manufacturer Profile

CR Tin (Andylots Tin Box Packaging Co.,Ltd) represents the pinnacle of modern, single-source metal packaging technology. We integrate complex child-resistant lock mechanical engineering, mold design, prototyping, third-party laboratory safety testing, and automated mass-scale manufacturing under one roof.

Initiated in 2016, our specialized R&D division has been at the forefront of the child-resistant tin packaging evolution. Over a decade of engineering research has produced a portfolio of more than 70 proprietary certified designs. Covering all major tin box layouts utilized across the pharmaceutical, recreational cannabis, nutraceutical, and chemical industries, we provide a unified Child-Resistant compliance standard for global consumer safety.

Our Key Competitive Advantages

Empowering dynamic consumer brands with high-performance packaging structures, unmatched prototyping speed, and state-of-the-art Quality Assurance.

Various CR Tin Options

Various CR Tin Options

Select from over 12 proprietary, certified CR tin structures that allow you to rapidly address changing regional safety regulations without expensive new tooling delays.

Strong R&D Team

Strong R&D Engineering

Access free custom design services, 3D digital renderings, and rapid physical 3D-printed mockups to shorten your brand’s commercial launch cycle.

Rigorous Quality Control

Rigorous Quality Control

Benefit from automated optoelectronic inline inspections and experienced operational teams capable of delivering high-volume, defect-free tin packaging orders.

Eight Years of Pioneer Engineering

Our engineering team leverages decades of combined metalwork experience to build structural integrity and reliability into every custom tin. Whether you are launching a startup or managing a large-scale consumer packaging transition, our team guides you from concept to regulatory validation.

We work across all structural and material variations—from highly secure, airtight, gasketed metal containers that protect product freshness to eco-friendly, infinitely recyclable custom designs. We cover all technical requirements for your target market.

Compliance Engineered Tin Boxes

Whitepaper: Structural Design, Compliance, and Economic Optimization

An in-depth guide to child-resistant packaging engineering, localized regulatory landscapes, and the operational advantages of Chinese manufacturing.

1. The Global Landscape of Child-Resistant Metal Packaging

In highly regulated consumer markets like North America and Europe, Child-Resistant (CR) packaging is a legal necessity for products containing active botanicals, pharmaceuticals, concentrated chemicals, and household unit-doses. Regulations such as the U.S. Poison Prevention Packaging Act (PPPA), administered by the CPSC under 16 CFR § 1700.20, and international standards like ISO 8317, dictate that packaging must be significantly difficult for children under 51 months to open, while remaining accessible to seniors (ages 50 to 70).

Plastic has traditionally been the default material for these applications. However, global shifts toward circular economies and extended producer responsibility (EPR) have made plastic less viable. Tinplate—a thin steel sheet electrolytically coated with tin—offers a rigid, premium, plastic-free alternative. Tins provide excellent barrier protection against light, moisture, and oxygen, and they are infinitely recyclable, helping brands meet environmental goals while maintaining high safety standards.

2. Engineering Compliant Child-Resistant Mechanisms

Designing a child-resistant mechanism in tinplate requires balancing material rigidity with tight manufacturing tolerances. Steel does not behave like injected plastic; it has unique spring-back properties and tensile limits that must be managed through precise stamping. Our certified CR designs leverage two main mechanisms:

  • Double-Button Squeeze Release: Requires the user to simultaneously press two distinct points on the tin's frame to align internal tabs with the cover, allowing it to slide or lift open. This requires manual dexterity and force vectors that young children cannot easily coordinate.
  • Push-and-Slide/Lift: Integrates a hidden locking tab. Users must apply downward pressure while sliding or lifting the lid. This multi-axis motion confuses child testing cohorts but is simple for adults.

By using Finite Element Analysis (FEA), our engineers simulate stress points on the tin's locking mechanisms. This ensures the lids maintain their spring-back force and compliance through hundreds of opening cycles, preventing structural failure over the product's lifespan.

Certified CR Tins Systems

Certified Safety Structures

  • 8 years of dedicated research and development in child-resistant mechanical systems.
  • A wide variety of pre-tested designs that meet ASTM CR certifications.
  • A unified, standardized CR tin system that speeds up regulatory approval.
  • Cost-effective and highly secure closure designs optimized for production.

3. Supply Chain and Cost-Efficiency Optimization

High-quality packaging must also be economically viable. At CR Tin, we optimize production costs by focusing on structural simplicity and manufacturing automation. By reducing the number of individual parts in our child-resistant tins, we lower assembly time, decrease raw material costs, and reduce potential failure points.

We source raw tinplate directly from regional mills, ensuring consistent metallurgical properties. We also collaborate with local accessory suppliers for custom foam, silicone, and molded inserts. This regional integration keeps material costs low and ensures fast production turnarounds.

Cost Management Framework

  • Simplified component designs reduce mold and unit production costs.
  • Automated punching and rolling machinery minimize manual assembly labor.
  • Established regional networks for accessories, seals, and lining materials.
  • Upgraded stamping tooling increases material yield and reduces waste.
Optimized Tooling and Cost Savings

4. China's Advanced Manufacturing & Tooling Advantages

Our manufacturing base in China offers clear benefits in tooling speed, cost, and capacity. Developing custom tin packaging requires high-precision molds. Outside of China, toolmaking can take months and require large capital investments. Our facility delivers finished, hardened tool steel dies in 15 to 20 days at a fraction of the cost.

This agility is supported by our automated lines, which stamp, curl, bead, and assemble with high consistency. Automation ensures each tin meets the exact dimensions required for child-resistant compliance, which is critical for automatic filling lines where even tiny deviations can cause lines to jam.

Advanced Stamping Quality Control

Quality Assurance Infrastructure

  • In-line optical measurement sensors verify latch and lock dimensions.
  • Continuous calibration of automated stamping lines keeps tolerances tight.
  • Manual QA checks on assembly lines verify latch feedback and mechanism fit.
  • We work with third-party testing agencies to provide SGS and compliance certificates.

5. Custom Design & Prototyping Support

For brands looking to build a unique market presence, off-the-shelf packaging is rarely enough. We work with clients to develop custom tin dimensions, shapes, and branding styles. Our industrial design team uses 3D rendering to showcase artwork placement, embossing details, and surface finishes before cutting steel.

We also provide 3D-printed SLA resin models and pre-production metal samples. This allows brands to test lock tolerances, retail display fits, and automated filling setups before committing to full production runs, reducing product launch risks.

Customization Capabilities

  • A wide variety of shapes, including rectangular, round, square, and custom profiles.
  • Exclusive mold customization options to match your brand's unique style.
  • Rapid 3D modeling and SLA prototyping services.
  • Advanced print finishes, including CMYK offset, Pantone matching, spot UV, and embossing.
Tailored Embossed Tins Customization

6. Localized Applications and Industrial Scenarios

Different markets present distinct regulatory challenges. In North America, the packaging of pre-rolls, vape cartridges, and infused gummies is subject to state-by-state child-resistant compliance checks. Our airtight, smell-proof tin designs protect product freshness while complying with local laws, helping brands enter new markets smoothly.

In Europe, the focus is on sustainability, circular economy compliance, and premium confectionery packaging. European brands use our food-grade, lacquer-finished tin cubes and sliding tins to replace single-use plastics for mints, supplements, and tablets. This meets the EU's strict environmental goals while offering high-quality retail packaging.

Frequently Asked Questions (FAQ)

Answers to common technical, regulatory, and production questions about custom child-resistant metal packaging.

How are your child-resistant tins certified?

Our child-resistant tins are tested and validated by accredited third-party laboratories. The testing follows CPSC 16 CFR § 1700.20 and ISO 8317 protocols. The testing process evaluates the design's effectiveness with children under 51 months, as well as its ease of use for senior adults. We can supply the testing reports and compliance certificates for our designs to assist with your regulatory submissions.

What are the MOQ (Minimum Order Quantity) limits for custom designs?

For our standard child-resistant structures with custom printing, the MOQ is 10,000 units. For completely custom shapes or sizes that require new tooling, the MOQ starts at 30,000 units. This volume is necessary to cover the setup costs of automated stamping lines and lithographic printing runs.

Can your tins be made airtight and odor-proof?

Yes. We can integrate food-grade silicone, neoprene, or plastisol gaskets into the lid or neck of our tins. This creates a secure seal that prevents air exchange and controls odors, which is particularly important for products like infused gummies, lozenges, and pre-rolls.

What print finishes and custom effects can you apply?

We offer a range of printing options, including CMYK offset printing, Pantone color matching, metallic and pearlescent inks, matte/gloss/crackle varnishes, and selective spot UV. We can also add multi-level embossing and debossing to emphasize your logo or brand details.

How do you ensure food safety compliance?

We construct all our tins using premium food-grade tinplate. The interior surfaces are coated with FDA-approved, BPA-free clear or gold lacquers. This protective layer prevents direct contact between the product and the steel base, preventing oxidation and preserving flavor.

What is the lead time for tooling, prototyping, and production?

We provide 3D CAD models and renderings in 2 to 3 business days. Physical 3D-printed SLA resin models take 5 to 7 days. Once the design is finalized, tool construction and physical pre-production metal samples require 15 to 20 days. Bulk production is typically completed in 25 to 30 days after the final sample is approved.