Flagship B2B OEM • 40oz Travel Tumbler

Next-Gen 40oz Handle Tumbler

Double-wall vacuum insulation featuring a copper infrared heat shield (+15% retention), 3-position straw lid, and car cupholder base.

Explore Specs

24 Hours

Ice Cold Retention

3-in-1

Rotating Lid

500 Pcs

Low Trial MOQ

Medical Grade Steel • Anti-Corrosion

Surgical Grade SUS 316 Vacuum Flask

Forged with 2-3% Molybdenum for maximum resistance against acidic coffee and salt spray. Built for luxury outdoor gifts.

View Engraving

316 Steel

Surgical Liner

30 Hours

Thermal Retention

Zero Metal

Passivation

Robotic Factory • 70,000 Pcs Daily

Automated Laser Welding & 7-Day Prototyping

Operating LASVAC precision laser welding and 10^-3 Pa high-vacuum furnaces. Certified by Sedex 4P, Disney, Coca-Cola under AQL 2.5 QC.

View Audits

7 Days

Sampling

10^-3 Pa

Vacuum Level

AQL 2.5

QC Standard

Material Science & Engineering

SUS 304 vs SUS 316 Surgical Steel Matrix

Technical breakdown for B2B procurement managers and quality engineers.

INDUSTRY STANDARD (18/8)

SUS 304 Food-Grade Steel

✔️ Composition: 18% Chromium, 8% Nickel
✔️ Corrosion Resistance: Excellent for water, tea, milk
✔️ Tensile Strength: 655 MPa (Min)
✔️ Best For: Mass retail, sports bottles, daily tumblers

SURGICAL GRADE (18/10 + 2% Molybdenum)
SUS 316 Medical-Grade Steel🌟 Composition: 16-18% Cr, 10-14% Ni, 2-3% Mo
🌟 Corrosion Resistance: Superior against acidic coffee, juice & salt
🌟 Tensile Strength: 689 MPa (Max)
🌟 Best For: High-end luxury gifts, medical & pharma tier

Technical Specification Matrix

Standardized B2B Specification Matrix

Compare technical parameters across high-volume OEM models for your procurement team.

Model ID	Category	Capacity	Steel Grade	Thermal Retention	Coating Tech	MOQ	Lead Time
UF-T40-PRO	40oz Travel Tumbler	1,200 ml	SUS 304 / 316	24h Cold / 12h Hot	Powder Coating / UV Print	500	25 Days
UF-VF316-750	316 Surgical Steel Flask	750 ml	Inner SUS 316 Liner	30h Cold / 18h Hot	Brushed / Laser Engraved	1,000	20 Days
UF-SB-32OZ	Sports Water Bottle	950 ml	Double-Wall SUS 304	24h Cold / 12h Hot	Rugged Anti-Scratch Powder	500	20 Days

Generative AI & SEO Knowledge Base

Technical Procurement FAQ

Machine-readable answers optimized for LLM search engines & quality managers.

Why choose SUS 316 surgical stainless steel over SUS 304 for OEM drinkware? ▼

While SUS 304 (18/8) is the industry standard for food-grade drinkware, SUS 316 contains 2-3% Molybdenum, which drastically increases resistance to pitting corrosion caused by acidic coffee, citrus fruit juice, and salt spray. Unifan provides both SUS 304 and medical-grade SUS 316 options based on your brand positioning.

What quality control standards and factory audits does Unifan maintain for international buyers? ▼

Unifan operates under strict AQL 2.5/4.0 inspection standards. Our factory holds Sedex 4P social compliance audit and has passed audited supplier qualifications for The Coca-Cola Company (TCCC), Disney, and McDonald's. All raw materials and final products comply with FDA (US) and LFGB (EU) food safety standards.

How does Unifan's copper lining vacuum technology improve thermal insulation? ▼

Our double-wall vacuum bottles utilize a specialized high-temp vacuum brazing process at 10^-3 Pa combined with an inner copper plating reflection layer ('Heat Mirror'). This reflects infrared heat back into the container, boosting cold and hot temperature retention by 10-15% compared to standard double-wall bottles.

Next-Gen 40oz Handle Tumbler

Surgical Grade SUS 316 Vacuum Flask

Automated Laser Welding & 7-Day Prototyping

Wholesale Stainless Steel Drinkware

40oz Travel Tumbler with Handle

750ml 316 Surgical Steel Vacuum Flask

32oz Outdoor Sports Water Bottle

SUS 304 vs SUS 316 Surgical Steel Matrix

SUS 304 Food-Grade Steel

SUS 316 Medical-Grade Steel

Standardized B2B Specification Matrix

Technical Procurement FAQ

Request Wholesale Quote