Capacity: 660ml/22oz

Size/weight: 8.8×7×25.5 cm/412g

Carton : 70×54×27.5cm/0.104m³

QTY: 25pcs 

N.W./G.W.: 10.3/11.8kgs

1. Core Concepts and Key Technologies

The high capacity insulated stainless steel Tumbler addresses a specific functional requirement: maintaining beverage temperature over extended periods while accommodating larger liquid volumes. This requirement is increasingly relevant in professional environments where hydration intervals are long, access to refills is limited, or temperature stability is critical throughout the workday.

At the core of this product category is double-wall insulation, typically implemented as a vacuum-sealed structure. Two concentric stainless steel walls enclose an evacuated space that significantly reduces heat transfer through conduction and convection. Radiative heat exchange is further minimized by the reflective properties of the inner wall surface. Compared with single-wall or foam-insulated containers, this configuration provides more stable temperature retention, especially in high-capacity formats where the surface-area-to-volume ratio presents additional thermal challenges.

The integration of a matching handle, straw, and silver-trimmed lid introduces additional engineering considerations. A larger volume increases total mass when filled, making ergonomic grip design and load distribution critical. The handle must support repeated lifting without introducing stress concentrations, while the straw and lid system must maintain leak resistance under both static and dynamic conditions. Together, these elements transform the tumbler into a controlled hydration system rather than a simple storage vessel.

From a B2B perspective, high capacity insulated tumblers are evaluated not only on thermal performance but also on consistency across production batches, durability under repeated use, and predictable behavior in real operational settings such as offices, commuting environments, and mobile work scenarios.

2. Product Structure, Performance, Materials, and Manufacturing Processes

2.1 Structural Configuration

A high capacity Insulated Stainless Steel Tumbler with handle and straw typically consists of the following integrated components:

Inner vessel: A food-contact layer formed from stainless steel, designed to withstand prolonged exposure to hot or cold liquids.

Outer shell: Provides mechanical strength and protects the insulation layer.

Vacuum insulation chamber: A sealed, air-free gap between the two walls.

Base weld or seal zone: Maintains vacuum integrity over the product’s service life.

Lid assembly: Often a multi-component structure with rigid housing, sealing gaskets, and a straw interface.

Straw system: Allows controlled fluid intake while minimizing heat exchange.

Handle module: Engineered for ergonomic grip and balanced load support.

Silver-trimmed lid elements: Metallic or metallized components that reinforce structural edges and interfaces.

Each component must be designed to function as part of an integrated system. In high-capacity designs, dimensional accuracy becomes especially important, as minor misalignments can be amplified by increased volume and weight.

2.2 Material Selection and Functional Performance

Stainless steel is the primary structural material due to its corrosion resistance, mechanical stability, and compatibility with food and beverage contact. Austenitic grades are commonly used because they retain strength and dimensional stability across repeated thermal cycles.

For non-metal components, material selection focuses on durability and compatibility:

Sealing elements: Typically made from food-grade silicone or comparable elastomers, selected for elasticity, compression recovery, and resistance to temperature extremes.

Handles: Often produced from reinforced polymers or metal-polymer hybrids to balance strength, weight, and tactile comfort.

Straws: Manufactured from BPA-free polymers or silicone, optimized for fluid flow, transparency, and resistance to deformation.

Decorative trims: Silver-trimmed lid components are engineered to resist corrosion and abrasion without compromising sealing performance.

Material compatibility across all components is essential to prevent differential thermal expansion, seal fatigue, or long-term deformation.

2.3 Manufacturing Workflow

The manufacturing process for a high capacity insulated stainless steel tumbler involves a series of tightly controlled steps:

Deep drawing or spinning of stainless steel blanks to form inner and outer shells.

Precision trimming and concentric alignment to ensure uniform wall spacing.

Base welding or sealing, creating a closed cavity for insulation.

Vacuum evacuation and sealing, often verified using pressure decay or leak detection methods.

Surface finishing, including polishing or coating to enhance grip and wear resistance.

Injection molding of lids, handles, and straw components.

Assembly and fastening, using controlled torque or snap-fit mechanisms.

Functional testing, covering leak resistance, handle load tolerance, and thermal retention.

Consistency in each step is critical, particularly for high-capacity designs where small defects can lead to disproportionate performance loss.

3. Factors Influencing Quality and Thermal Performance

3.1 Vacuum Integrity

Thermal performance depends on maintaining a stable vacuum between the walls. Poor weld quality, contamination during sealing, or mechanical shock can introduce air into the insulation chamber, reducing effectiveness over time.

3.2 Lid and Seal Engineering

A leak-resistant design relies on precise interaction between rigid lid components and flexible sealing elements. In high-capacity tumblers, internal pressure changes caused by temperature variation or movement can challenge seal stability if tolerances are not carefully controlled.

3.3 Handle Load Distribution

The handle must support the full weight of the filled tumbler without flexing or detachment. Ergonomic geometry reduces user fatigue and minimizes stress on attachment points during repeated use.

3.4 Straw Interface Design

Straw diameter, wall thickness, and connection geometry influence both drinking comfort and thermal efficiency. Poorly designed interfaces can become leakage points or thermal bridges.

3.5 Resistance to Thermal Cycling

Daily use often involves alternating between hot and cold beverages. Materials and joints must accommodate expansion and contraction without compromising structural alignment or seal performance.

4. Common Questions and Technical Clarifications (FAQ)

Q1: Why is double-wall insulation especially important for high-capacity tumblers?

Larger volumes increase heat loss potential due to greater surface area. Double-wall vacuum insulation mitigates this effect by minimizing heat transfer pathways.

Q2: Does the silver-trimmed lid affect sealing or insulation?

When properly engineered, decorative trims are structurally isolated and do not interfere with sealing or thermal performance.

Q3: Are high-capacity tumblers more prone to leakage?

Not inherently. Leak resistance depends on lid design, seal materials, and manufacturing precision rather than volume alone.

Q4: Is the straw suitable for both hot and cold beverages?

Suitability depends on material selection. Silicone or high-temperature polymers are preferred for mixed-use applications.

Q5: What factors most influence service life?

Vacuum retention, seal durability, handle attachment strength, and resistance to mechanical wear are the primary determinants.

5. Application Scenarios and Industry Use Cases

High capacity insulated stainless steel tumblers are used across a range of professional and semi-professional contexts:

Office environments: Support extended hydration without frequent refills, maintaining temperature throughout the workday.

Commuting and travel: Leak-resistant lids and ergonomic handles reduce spill risk during movement.

Mobile and field work: Provide reliable temperature control where access to refreshments is limited.

Corporate and institutional settings: Durable construction supports repeated daily use with consistent performance.

Shared workspaces: High capacity reduces handling frequency, lowering wear on lids and seals.

In each scenario, the tumbler functions as a reusable thermal system designed for sustained, practical use.

6. Current Trends and Future Development Directions

6.1 Focus on Ergonomic Scaling

As capacity increases, more attention is being given to handle geometry, grip texture, and weight balance to maintain usability.

6.2 Modular Component Systems

Interchangeable lids, straws, and handles allow functional variation without redesigning the insulated core, improving adaptability for different use cases.

6.3 Enhanced Seal Materials

Advances in elastomer technology are improving resistance to compression set and fatigue, extending leak-resistant performance over longer lifespans.

6.4 Lifecycle-Oriented Design

B2B buyers increasingly evaluate products based on durability, repairability, and long-term performance rather than short-term insulation metrics.

6.5 Compliance and Material Transparency

Growing regulatory and corporate requirements are driving demand for documented food-contact compliance and traceable material sourcing.

Conclusion

The high capacity insulated stainless steel tumbler represents an engineered response to the demands of extended hydration, temperature stability, and ergonomic usability. Its performance is defined by vacuum integrity, material compatibility, and structural precision rather than capacity alone. When designed and manufactured with consistent quality control, this category of tumbler delivers reliable thermal retention, leak resistance, and user comfort across daily use, commuting, and office environments.