Steelermax

Stainless Steel Tumbler Manufacture In China

About us

Established in 2010, Steelermax has been a trusted manufacturer and exporter for over 10 years, located in Jinhua City, Zhejiang, China, which is known as the "Capital of Vacuum Flask".

We follow international quality management systems to ensure product consistency and reliability.

How We Ensure the Quality of Bulk Stainless Steel Tumblers

Steelermax Enginerring Team has more than 10-year experiences in production management, we have the know-how to ensure the whole process is efficient and at lower cost. There are 30+ production processes and standard check points to acheive this.

product design

Design

Check points

Material ✔
shape ✔
capacit ✔
appearance ✔

pipe cutting

Pipe Cutting

Check points

Precision ✔
Smoothness ✔
Uniformity ✔
Material Integrity ✔

hydroforming

Hydroforming

Check points

Form Consistency ✔
Thickness ✔
Deformation ✔
Pressure Control ✔

deep drawing

Deep Drawing

Check points

Depth Accuracy ✔
Surface Integrity ✔
Uniformity ✔
Wall Thickness ✔

Ultra Light / Thin

Ultra Light / Thin

Check points

Wall Thickness ✔
Weight ✔
Balance ✔
Durability ✔

welding

Welding

Check points

Seam Quality ✔
Joint Strength ✔
Leak Prevention ✔
Aesthetic Finish ✔

Vacuum Chamber

Vacuuming

Check points

Vacuum Seal ✔
Air Pressure ✔
Seal Integrity ✔
Vacuum viscosity ✔

polishing

Polishing

Check points

Surface Finish ✔
Shine ✔
Scratch Resistance ✔
Uniformity ✔

painting

Painting And Printing

Check points

Coating Evenness ✔
Adhesion ✔
Color Accuracy ✔
Durability ✔

cut test

Print Quality Testing

Check points

Coating Durability ✔
Adhesion Strength ✔
Cut Resistance ✔
Consistency ✔

heat test

Function Testing

Check points

Temperature Lock ✔
Consistent Retention ✔
Material Integrity ✔
User Testing ✔

waterproof test

Leak Proof Testing

Check points

Seal Integrity ✔
Lid Functionality ✔
Pressure Resistance ✔
Durability ✔

Our service

One Step More Service for Wholesale Tumbler