Capacity: 1200ml

Size/weight: 10×7.4×24.7cm/478g

Carton: 63×55×30.5cm/0.106m³

QTY: 20pcs 

N.W./G.W.: 9.6/11.6kgs

1. Introduction: Growing Demand for Durable Coffee Tumblers

The demand for insulated large stainless steel coffee tumblers has increased considerably due to evolving consumer and business requirements. Modern professionals and commuting individuals seek containers that can maintain beverage temperatures for extended periods, offer convenient portability, and deliver ergonomic comfort. A stainless steel tumbler with a black handle and flip-top lid exemplifies these requirements, combining thermal efficiency with practical design.

Key features include:

Double-wall insulation: Maintains hot or cold beverage temperatures.

Leak-resistant flip-top lid: Ensures spill-free transportation.

Ergonomic handle: Provides a comfortable grip even with large volumes.

Portable design: Suitable for daily commutes, office use, and travel.

Understanding the underlying technology, materials, and manufacturing processes is essential for B2B buyers aiming to source high-quality coffee tumblers.

2. Core Concepts and Key Technologies

2.1 Double-Wall Vacuum Insulation

The primary thermal retention mechanism in a large stainless steel coffee tumbler is its double-wall vacuum structure:

Inner liner: Typically 304 stainless steel, offering corrosion resistance and hygiene.

Outer shell: Stainless steel with a polished, powder-coated, or brushed finish for durability and aesthetics.

Vacuum layer: Air is removed between the inner and outer walls, reducing heat transfer via conduction and convection.

This design ensures hot beverages remain above 60°C (140°F) for 8–12 hours, while cold beverages can stay chilled for up to 16 hours.

2.2 Leak-Resistant Flip-Top Lid

The flip-top lid enhances usability and safety:

Silicone seal: Prevents spillage during movement.

Integrated handle design: Facilitates comfortable handling without compromising lid integrity.

One-hand operation: Simplifies drinking while commuting or multitasking.

2.3 Ergonomic Handle Design

Large-capacity coffee tumblers can weigh over one kilogram when filled. Ergonomic handles:

Reduce grip fatigue: Contoured shape distributes weight evenly.

Provide stability: Minimizes tilting and accidental spillage.

Ensure thermal isolation: Prevents heat transfer to the handle, keeping it cool to the touch.

3. Product Structure, Performance, and Materials

3.1 Structural Components

A typical insulated large coffee tumbler consists of:

Inner stainless steel liner: 304 grade, resistant to rust and safe for beverages.

Outer shell: Stainless steel or coated for scratch resistance.

Vacuum layer: Provides primary thermal insulation.

Handle and lid assembly: Flip-top lid with black ergonomic handle.

Silicone gasket: Ensures leak-proof performance.

3.2 Thermal Performance Metrics

Hot beverage retention: 8–12 hours depending on ambient temperature and liquid volume.

Cold beverage retention: 10–16 hours.

Factors affecting performance: Lid alignment, vacuum quality, and wall thickness uniformity.

3.3 Aesthetic and Functional Design

Color and finish: Black handle with metallic or brushed stainless steel surfaces provides a professional look.

Surface durability: Powder coatings enhance scratch resistance and corrosion protection.

Custom branding: Laser engraving or UV printing allows high-quality logos without affecting insulation.

4. Manufacturing Processes and Quality Assurance

4.1 Shell and Liner Fabrication

Deep drawing: Produces uniform wall thickness and ensures structural integrity.

Hydroforming: Creates precise cylindrical shapes while maintaining dimensional consistency.

Surface treatment: Powder coating or brushing provides both aesthetic appeal and wear resistance.

4.2 Vacuum Creation and Testing

Air evacuation: Mechanical pumps or thermal processes remove air between walls.

Leak and thermal tests: Confirm vacuum integrity and expected heat retention.

Lid assembly testing: Ensures silicone gaskets seal uniformly and flip-top mechanisms operate correctly.

4.3 Handle and Lid Integration

Ergonomic verification: Handles are load-tested with filled tumblers to ensure durability.

Gasket inspection: Silicone seals checked for compression and uniformity.

Logo application: Tested for abrasion resistance and clarity.

5. Key Factors Affecting Quality and Performance

Vacuum integrity: Compromised vacuum reduces insulation efficiency.

Wall thickness and uniformity: Affect thermal performance and structural strength.

Lid design and gasket quality: Critical for leak prevention and user convenience.

Handle ergonomics: Influences portability and comfort.

Surface durability: Resistance to scratching and corrosion ensures longevity.

6. Common Issues and Solutions

6.1 Reduced Temperature Retention

Cause: Misaligned lid or vacuum leaks.

Solution: Implement rigorous vacuum testing and lid alignment procedures.

6.2 Leakage

Cause: Worn or improperly seated silicone gasket.

Solution: Use high-quality silicone and ensure proper assembly.

6.3 Handle Fatigue

Cause: Poor ergonomics or weight distribution.

Solution: Redesign handle shape, optimize material strength, and consider thermal isolation.

6.4 Surface Wear or Logo Fading

Cause: Low-quality coating or printing.

Solution: Use powder coating or UV/laser engraving for durability.

7. Application Scenarios and Industry Use Cases

7.1 Daily Commuting

Fits standard vehicle cup holders.

Flip-top lid allows one-handed drinking.

Maintains beverage temperature throughout long commutes.

7.2 Office and Workplace

Professional aesthetic blends with office environments.

Large capacity reduces the need for repeated refills.

Leak-resistant design minimizes risk of desk spills.

7.3 Outdoor and Travel Use

Ideal for hiking, cycling, or camping.

Durable stainless steel withstands rough handling.

Ergonomic handle ensures portability in outdoor scenarios.

7.4 Corporate Gifting and Promotions

Customizable logos and finishes for branding.

Large-capacity tumblers serve as practical, high-perceived-value gifts.

Combines functionality with professional appearance.

8. Current Trends and Future Directions

8.1 Sustainability and Materials

Use of 304 stainless steel and BPA-free components.

Emphasis on recyclability and reduced single-use beverage containers.

8.2 Smart Features

Temperature indicators or alerts for enhanced usability.

Modular lid designs for increased functionality.

8.3 Improved Thermal Efficiency

Advanced vacuum technologies and optimized wall thickness.

Anti-corrosion and scratch-resistant coatings.

8.4 Design and Aesthetic Innovations

Matte, metallic, or gradient finishes for modern appeal.

High-quality logo placement maintaining clarity and durability.

9. Conclusion

The insulated large stainless steel coffee tumbler with white handle and flip-top lid balances thermal retention, ergonomic handling, and sleek design. Double-wall insulation, leak-resistant flip-top lid, and ergonomic handle make it suitable for commuting, office use, outdoor activities, and corporate gifting. Controlled manufacturing processes, including vacuum creation, wall uniformity, and ergonomic testing, ensure consistent product quality. For B2B buyers, this tumbler offers a combination of performance, durability, and customization potential.

10. Frequently Asked Questions (FAQ)

Q1: How long does the tumbler maintain temperature?

Hot beverages: 8–12 hours

Cold beverages: 10–16 hours

Q2: Is the handle comfortable for large volumes?

Yes, ergonomically designed with thermal isolation.

Q3: Can the lid and handle be cleaned easily?

Yes, BPA-free materials are detachable and dishwasher-safe in most cases.

Q4: Is custom logo printing available?

Yes, via laser engraving, UV printing, or screen printing.