Welcome to buy or wholesale the discount and quality Large Capacity Double-Layer Handle Insulated Water Cup made in China with cheap price from us. As one of the leading manufacturers and suppliers in China, we can assure you of its elegant design and highest quality.
Technical Specifications
Capacity:
30oz (~887ml) / 40oz (~1183ml)
Inner Liner:
SUS304 food-grade stainless steel (direct liquid contact layer)
Outer Shell:
SUS201 / SUS304 stainless steel or powder-coated metal shell
Vacuum Layer:
Sealed insulation chamber (vacuum state formed after welding process)
Lid System:
PP structural housing + detachable straw module + silicone sealing ring
Handle:
Reinforced PP or metal-supported integrated structure for full-load carrying
Mouth Design:
Wide diameter opening for ice insertion and internal cleaning access
Material & Safety Compliance
- Inner liner: SUS304 stainless steel for beverage contact corrosion resistance
- Straw system: food-grade PP + silicone sealing interface for repeated disassembly cycles
- Seal structure: compressible silicone ring designed for repeated sealing pressure cycles
- Surface coating: powder coating / brushed stainless steel finish (optional configuration)
Functional Safety Behaviors:
- Prevents liquid contact with external coating layer.
- Maintains sealing compression under tilt and vibration conditions.
- Detachable components allow direct cleaning of all wet-contact surfaces.
Key Structural Innovation
The cup integrates a fully detachable straw flow architecture, consisting of:
Unlike conventional one-piece straw lids, this system allows:
- Complete disassembly of all liquid-contact channels
- Direct exposure of internal lid cavity after separation
- Mechanical cleaning using brush or water jet without structural blockage
This design directly addresses microbial growth caused by residual liquid trapped in inaccessible bottom cavities typical of sealed straw systems.
Cold retention function
The insulation system is based on a vacuum-sealed double stainless steel wall structure, which reduces heat transfer through:
- Elimination of air conduction in vacuum chamber
- Reduced thermal radiation through stainless steel barrier
- Minimized convection loss through sealed lid interface
Cold Beverage Behavior:
- Ice water maintains low temperature distribution over extended use cycles.
- Temperature rise is slowed due to reduced external heat ingress through cup wall.
- Beverage temperature remains more uniform across wall-contact zones.
* This structure is optimized for iced drinks, cold water, and refrigerated beverage storage scenarios.
Manufacturing Process
Customization Options
Capacity Specs
30oz / 40oz / customized volume scaling
Lid Variants
Removable straw lid (standard), flip lid / screw lid optional variants
Branding Process
Laser engraving (permanent metal marking), silk screen printing (colored branding)
Surface Finishes
Matte powder coating, metallic brushed finish, gradient color coating
Quality Control & Testing
Each production batch undergoes structural verification tests:
- Leak test: 180° inversion holding for 24 hours
- Drop test: 1.2–1.5m free fall impact under filled condition
- Straw system cycle test: repeated disassembly/reassembly durability verification
- Seal compression test: lid torque stability under repeated opening cycles
- Coating abrasion test: friction resistance evaluation for coated surface
Monitored Failure Modes:
Application Scenarios
- Retail beverage cup market (large-volume hydration segment)
- Gym and fitness hydration systems requiring cold water retention
- Outdoor camping environments with high temperature exposure and ice storage demand
- Office desk hydration systems for long-duration beverage cooling
- Promotional branding programs for retail and corporate distribution
FAQ
Q1: Why is the removable straw structure important?
A1: It eliminates sealed internal cavities where liquid residue cannot be accessed, allowing full mechanical cleaning of the drinking path.
Q2: What is the main failure mode of traditional straw lids?
A2: Accumulated liquid in non-removable internal channels leading to microbial growth and odor formation.
Q3: Does repeated disassembly affect sealing performance?
A3: No, sealing is maintained by silicone compression interface designed for repeated assembly cycles.
Q4: How does vacuum insulation improve cold retention?
A4: It reduces heat conduction between inner and outer walls by removing air medium inside the chamber.
Q5: Can this product support OEM branding?
A5: Yes, both lid system and outer shell support multiple marking methods including laser engraving and silk printing.
CTA
For OEM/ODM production, configure your requirements based on capacity selection, lid structures, surface finishes, and specific retail packaging options.
Submit your specification sheet to receive a structural sample proposal, customized quotation, and confirmation on production lead time and MOQ.
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