MAIDAO INDUSTRY / QUALITY CONTROL

Glass bottle quality control in Shandong and Xuzhou.

Your bottle has to do more than look right. At MAIDAO GLASS, a glass bottle manufacturer in China, inspection covers the mouth, sealing surface and capacity. The selected production area determines how those checks are carried out.

Include QC in my quotation
MAIDAO INDUSTRY quality team reviewing glass containers at a laboratory table
MAIDAO INDUSTRY · Glass container laboratory

COMPANY & PRODUCTION

Glass packaging from 2 production areas.

MAIDAO INDUSTRY was established in 2005. Your packaging draws on 14 production lines in Shandong and Xuzhou, with the glass and order requirements determining the route.

Glass forming equipment in the Shandong production area

7 PRODUCTION LINES

Shandong

Our own, invested and long-term contracted capacity.

Machine inspection with manual rechecks.

Glass forming equipment in the Xuzhou, Jiangsu production area

7 PRODUCTION LINES

Xuzhou, Jiangsu

Our own plant.

Manual inspection with audit samples every two hours.

INSPECTION RESPONSIBILITIES

Glass inspection by control point and production area.

A closure needs a sound sealing surface. Bottle-mouth inspection and trials with your selected closure serve different purposes; the assembled package also needs evaluation with your product and filling process.

Bottle mouth & sealing surface

Both production areas

Your bottle mouth and sealing surface receive 100% checks. Shandong uses machine inspection with manual rechecks. Xuzhou uses manual inspection with an audit sample every 2 hours, 12 times a day.

Capacity

Both production areas

Capacity checks are routine in both production areas. The drawing and reference sample give your selected bottle a defined specification for comparison.

Residual stress

Both production areas

Residual-stress testing checks the annealed glass. Your order can include the report on request; it is not a standard document with every shipment.

Hot-end & cold-end coating

Shandong

Surface protection is part of the Shandong production route. Your selected glass and finish determine the applicable route.

CERTIFICATE & TEST REPORTS

Company quality documents for your supplier review.

ISO 9001 certificate issued to MAIDAO INDUSTRY for glass products sales

QUALITY MANAGEMENT SYSTEM

ISO 9001:2015

Certificate holder
MAIDAO INDUSTRY CO., LTD
Certificate number
17325Q20948R0S
Certified scope
Glass products sales
Valid until
4 August 2028

Your supplier review can include this sales-scope certificate. Product testing is assessed against the actual bottle, closure and decoration.

View the certificate
Wonder Testing report, sample-specific report preview

Wonder Testing report

The report applies to its submitted sample and stated tests.

View report preview

Your approval team can specify the sample, test method and complete report required for the selected package.

BEFORE PRODUCTION APPROVAL

What your glass inspection can establish.

The bottle drawing and reference sample establish the glass specification. Your selected closure, product and filling process define the assembled-package trials. Your packing plan, sampling levels, tolerances and report requirements belong in the order agreement.

How are glass bottle mouths and sealing surfaces inspected?

Both production areas check 100% of bottle mouths and sealing surfaces. Shandong combines machine inspection with manual rechecks; Xuzhou uses manual inspection with an audit sample every 2 hours.

Does the ISO 9001 certificate cover glass manufacturing?

The certificate held by MAIDAO INDUSTRY CO., LTD states the scope as glass products sales. It is a quality management system certificate for that scope. Product testing and the requirements for your bottle, closure and decoration are reviewed separately.

Does every order include a residual-stress test report?

A residual-stress report can accompany your order on request. Your required report fields, test methods and acceptance criteria should be agreed before production approval.

Does one test report cover every bottle and jar?

Each test report applies to its submitted sample and stated tests. Your product, closure, decoration and destination determine which documents are relevant to the order.

Can I arrange third-party inspection before loading?

Third-party inspection can be arranged before loading. Your inspection body, scope, timing and access requirements are agreed for the selected production route.

Put your quality requirements into the order.

Your product, closure, drawing, quantity and destination help define the inspection and documents for the order.

Get my packaging quote