This is our insulation-checking station for semi-finished vacuum bodies. The check takes place before assembly and finishing, while the order is still in production.
How the vacuum body fits the construction
A vacuum flask has an insulated cavity between its walls. Body checks take place before assembly and finishing, so anything needing attention can be addressed while the order is in production.
Checking the body before finishing keeps this step early in the production sequence. It sits alongside the approved sample, artwork and packing references used for the order.
Check the bodies before finishing
The insulation-checking station in our Yongkang workshop, used for semi-finished bodies before assembly and finishing.
The photo shows our insulation-checking station and semi-finished bodies. The check is part of the production sequence before finishing.
This step takes place before painting, printing and assembly. It keeps the body check early in production, alongside the references agreed for the order.
Vacuum bodies are checked before finishing, while anything needing attention can be addressed in production. The approved sample and agreed order details remain the reference for the finished product.
What this means for your order
These checks take place while the bodies are still at the semi-finished stage, so anything needing attention can be addressed before assembly. Heat-retention data is discussed for the chosen model and its test conditions. thermos flask category page
When comparing heat-retention figures, use the same capacity, fill level, starting temperature and test duration. We can discuss the data available for the chosen model and any specific report your programme needs.
Hallmark's 2017 DG-Lab report records function-reliability tests on the submitted product. You can view the report on our certifications page, and third-party inspection can be arranged for your own order. Hallmark's DG-Lab function-reliability testing
Three details we can discuss for your order
Tell us the chosen model and any inspection request, and we can explain the production and confirmation steps together.
1. When is the body checked? Our vacuum-body check is carried out before assembly and finishing.
2. What stays as the reference? We retain the sample you approved and compare the first finished piece with it.
3. Can we arrange an inspection? Share the inspection plan early so we can coordinate it with production and shipment.
Frequently asked questions
When are vacuum bodies checked?▾
Vacuum bodies are checked before painting, printing and assembly, while anything needing attention can be addressed during production.
How do we compare heat-retention figures?▾
The vacuum cavity slows heat transfer. Heat retention depends on the model, fill level, lid and use; we can discuss the data available for the particular body you choose.
What stays as the production reference?▾
Your approved sample stays with us as the reference. The first finished piece is compared with it, and anything that has moved is adjusted before the run continues.
Can my inspector verify the insulation testing during an audit?▾
Yes. Share the inspection plan early and we can coordinate the visit or booking with the production and shipment schedule.
When in the flask production process is the vacuum body checked?▾
The body check shown on this page takes place on the semi-finished flask before coating and assembly. Confirm which checks apply to the selected model and order plan.
What conditions should accompany an insulation test result?▾
Record the model, capacity, starting temperature, fill level, ambient temperature, elapsed time and lid position with the result. Compare figures only when their test conditions are stated.
Which sales representative should I contact for samples, mock-ups or a quotation on this topic?▾
All four sales representatives — Beyond Lee, Miya Wu, Candy Tang and Shally Zhang — welcome global buyers in English and take part in our internal service competition to provide the most attentive follow-up. Choose Miya, Candy or Shally and Sales Manager Beyond Lee supervises the full order process from sample to shipment; choose Beyond Lee and a dedicated assistant works alongside him to co-follow your order. Each contact serves global buyers in English first and is also particularly familiar with specific order types and regional markets: Beyond Lee for custom development, logo options and new tooling; Miya Wu for supermarket, retail, online/FBA and brand orders (esp. Europe, Russia & CIS); Candy Tang for promotional gift campaigns and multi-item sets (esp. the US & Canada, Spain & Latin America, Oceania and select African markets); and Shally Zhang for volume orders, container scheduling and incoming accessory checks (esp. Brazil & Portugal, Southeast Asia and the Middle East).
Written by the Jupeng Drinkware team — Yongkang, Zhejiang, China. Manufacturing drinkware since 1998. Contact Beyond: [email protected] | WhatsApp +86 156 5791 8881
Share the model or product type, quantity, colours, logo and packing you have in mind. We’ll confirm the applicable minimum, sample plan and production schedule for that specific order, then help compare delivery options for your destination.
