30 Oz Double Wall Stainless Steel Tumbler

 

A high-capacity vacuum tumbler designed for automotive cup holders, outdoor retail lines, and corporate merchandise programs. Built with food-grade 18/8 stainless steel, engineered vacuum insulation, and customizable lid and surface finishes for volume OEM/ODM orders.

 

 

The 30 oz Double Wall Stainless Steel Tumbler delivers thermal retention and structural durability for daily hydration, high-volume retail customization, and private-label drinkware collections.

 

 

Copper-Lined Vacuum Core: Double-wall construction with inner copper plating maintains cold beverages below 10°C for up to 24 hours and hot beverages above 60°C for up to 8 hours.

Tapered Base Fitment: Precision-engineered 72 mm base fits standard automotive cup holders, golf carts, and exercise equipment.

Food-Grade 18/8 Stainless Steel: Non-reactive 304 stainless steel interior eliminates flavor transfer and resists corrosion from acidic drinks like coffee or citrus juices.

Sweat-Proof Outer Wall: Vacuum gap eliminates condensation, keeping the outer surface dry and safe for polished wooden desks or paper documents.

Spill-Resistant Lid Engineering: Precision-molded lid featuring food-grade silicone seals reduces splash and leakage during vehicular transport.

Industrial Surface Coating: Multi-layer surface treatments withstand scratch impact testing and high-frequency automated washing cycles.

 

 

Parameter	Technical Details
Capacity	30 oz / ~880 ml
Interior Material	Food-Grade 18/8 (SUS304) Stainless Steel
Exterior Material	201 or 304 Stainless Steel
Lid Materials	AS / Tritan / PP (BPA-Free, Food Grade)
Gasket Material	High-Density Food-Grade Silicone
Dimensions	Height: 232 mm (without lid) | Top Diameter: 100 mm | Base Diameter: 72 mm
Weight	~410 g (empty)
Thermal Performance	Cold retention: 24 hours (< 10°C under 20°C ambient test); Hot retention: 8 hours (> 60°C)
Compliance & Standards	FDA, LFGB, BPA-Free, EU REACH, Prop 65
Standard Packaging	24 pcs/ctn (eggcrate inner grid, individual white box, custom color box, or tube packaging available)

 

 

Automated Laser Welding: Wall thickness controlled at 0.4 mm with automated laser seam welding, ensuring dimensional tolerance and mechanical strength under heavy impact.

Multi-Stage Vacuum Extraction: Vacuum process conducted in high-temperature vacuum ovens operating below 10⁻³ Pa to ensure thermal performance across production batches.

Electroplated Copper Shielding: Outer wall of the inner flask features an electroplated copper layer that reflects infrared radiation, reducing heat transfer by an additional 15–20%.

Coating Adhesion Testing: Every batch of painted/powder-coated tumblers undergoes ASTM D3359 cross-hatch tape testing to ensure coating adhesion against peeling and scratching.

 

 

Magnetic Slider Lid: Smooth magnetic closure tab that detaches easily for thorough hygiene cleaning.

Flip-Straw Lid: Integrated folding nozzle with internal check valve to prevent leakage when tipped upside down.

Slide Lid: Standard clear AS or Tritan press-in lid with a slidable drinking port opening.

Ergonomic Welded Handle: Optional stainless steel or rigid PP handle customized to match body finishes.

Straw Accessories: Food-grade 304 stainless steel, reusable silicone straws, and custom-length nylon bristle cleaning brushes.

 

Powder Coating: Highly durable, textured finish offering improved tactile grip and scratch resistance.

Electrostatic Spraying: Smooth glossy, matte, or satin surface finishes with accurate color matching.

Full-Wrap Sublimation: Polyurethane exterior layer enabling 360-degree high-resolution photographic transfers.

Water Transfer Printing: Seamless wrap-around patterns for natural textures like wood grain, marble, and carbon fiber.

Electroplating & Metallic: High-shine metallic chrome, gold, and anodized effects applied through vacuum deposition.

 

● Branding Options:
Laser Engraving: Precise laser ablation exposing the raw stainless steel underneath.
Silk Screen Printing: Crisp, cost-effective printing for 1–3 spot color brand logos.
3D UV Printing: Multi-color tactile printing with textured 3D relief effects.
Embossing / Debossing: Custom tooling to press brand logos directly into the stainless steel wall.

● Color Customization: Precise color formulation using Pantone Matching System (PMS) target codes.

● Custom Packaging: White boxes, kraft mailer boxes, windowed display boxes, color tubes, and custom inner inserts.

● Custom Tooling: In-house R&D team provides CAD modeling and rapid 3D sample prototyping for proprietary shapes.
 

 

Automotive & Daily Commute: Standardized 72 mm base fits vehicle cup holders, accommodating long-distance travel and daily driving.

Outdoor Gear & Camping Lines: Durable metal structure and thermal insulation meet requirements for hiking, camping, and outdoor recreation brands.

Corporate Gifts & Event Merchandise: High surface area supports promotional branding for employee onboarding, corporate milestones, and events.

Fitness & Sports Merchandise: 30 oz capacity provides daily hydration volume for outdoor training, gym sessions, and sports clubs.

E-Commerce & Retail Brands: Standardized dimensions and low defect rates simplify inventory replenishment for Amazon, Etsy, and independent retail sellers.

 

 

100% Thermal Insulation Inspection: Every vessel passes through dual thermal scanning stations before and after surface coating to identify and reject vacuum failures.

Standardized Testing Protocols: Products comply with international food contact regulations, supported by third-party testing reports (FDA, LFGB, REACH, Prop 65).

Automated Manufacturing Equipment: Automated robotic lines for spray painting, laser welding, and packaging maintain consistency and lead-time stability.

Flexible Order Scheduling: Production capacity supports medium to large wholesale runs with standard lead times of 30 to 35 days.

 

 

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