Wholesale 316 Stainless Steel Tumbler | 600ml Dual-Sip Insulated Coffee Mug
Capacity: 600ml / 20oz
Material: Medical-Grade SUS316 Inner / SUS304 Outer
Performance: Keeps Cold for 12 Hrs / Hot for 6 Hrs
Lid Function: Dual-Drinking (Straw & Direct Sip)
MOQ: 500 pcs (Custom), 50 pcs (Stock)
Best For: Commuting, Office Desktop, Fitness, Amazon Sellers
FDA Approved
BPA Free
BSCI Factory
Lead Free
Key Features

Redefining Daily Hydration: The Elite 600ml Serie
Value Prop: Engineered for the high-energy lifestyle of modern professionals. Whether you’re navigating an urban commute or focusing at your office desk, the Elite Series provides seamless hydration. Its robust 600ml capacity ensures you stay fueled, maintaining your beverage at the perfect temperature for up to 12 hours of peak freshness.
B2B Edge: A high-perceived-value product that combines ergonomic design with premium aesthetics, ensuring strong retail demand and premium brand positioning for e-commerce sellers.
Medical-Grade 316 Stainless Steel Advantage
Tech Detail: While standard tumblers Stop at 304, Gencore upgrades the inner wall to SUS316 Stainless Steel. This medical-grade material offers superior corrosion resistance against acidic coffee and tea tannins, ensuring zero metallic taste transfer.
Insulation: Double-wall vacuum technology provides a superior thermal barrier, keeping drinks 6 hours hot and 12 hours ice-cold.

Versatile Dual-Sip Innovation
Innovation: Our patented Dual-Drinking Lid adapts to your needs. Use the integrated pop-up straw for mess-free sipping while on a call, or switch to the direct drinking spout for rapid hydration.
Safety: Features a spill-proof seal and a silent, anti-slip silicone base, making it the most considerate and stable desktop companion on the market.

Precision Branding & Global Supply Solutions
Customization: Elevate your brand identity with our curated Morandi Color Palette and premium matte powder coating. We provide factory-direct OEM services, including high-precision laser engraving and full-color 3D printing for your brand logo.
Logistics: Low 50pcs stock MOQ and global shipping support. We empower retail brands and corporate gift agencies to scale efficiently with retail-ready packaging.
Specifications
| Parameter | Details |
|---|---|
| Product Name | Wholesale 600ml 316 Stainless Steel Dual-Sip Tumbler |
| Material | Medical-Grade SUS316 (Inner) / SUS304 (Outer) Stainless Steel |
| Insulation | Double-Wall Vacuum Insulation |
| Capacity | 600ml / 20oz |
| Thermal | Hot 6H / Cold 12H Retention |
| Certificate | FDA, EC, LFGB, BPA-Free |
Frequently Asked Questions
Why is 316 stainless steel better than 304 for coffee tumblers?
SUS316 is a medical-grade alloy containing molybdenum, which provides significantly better resistance to pitting and corrosion from acidic liquids like coffee, tea, or carbonated drinks. This ensures the liner remains smooth and hygienic, preventing the buildup of odors and bacteria over long-term use.
Is this 600ml tumbler truly spill-proof for travel?
Yes. The lid is engineered with a dual-secure sealing system and food-grade silicone rings. When the lid is snapped shut, it creates an airtight, spill-proof seal, allowing it to be safely carried in car cup holders or on office desks without worry.
Does the matte powder coating scratch easily during daily use?
No. Gencore uses an industrial-grade powder coating process that is baked at high temperatures. This creates a textured, scratch-resistant finish that provides a non-slip grip and maintains its premium look even after heavy daily commuting and washing.
What certifications do Gencore tumblers carry for global B2B projects?
Health and compliance are our top priorities. All materials used in our 600ml series are fully certified with FDA, EC, LFGB, and BPA-Free standards, ensuring they are safe for the US, EU, and global markets.
OEM/ODM Customization Services

Logo & Branding
Laser Engraving, Silk Screen, 3D UV Printing

Surface Finishing
Matte Powder Coating, Gradient Color, Electroplating

Custom Packaging
Custom Gift Box, Eco-friendly PDQ, Private Labeling







