Roetell glass bottle manufacturing facility

facility is located in a growing region of Xuzhou, China, and manufactures more than 400,000 glass bottles per day. Based on the modern bottling factory​ and experienced know-how team, our bottle production is intended for the premium end of the beverage, food and cosmetic industry.

Your benefits in our figures

  • 5000+

    - Instock styles -

    the foremost advantage of stocking a huge amount of molds in-house is the flexibility. One factory can hardly meet all your requirements.

  • 400,000+

    - Pcs of bottles daily -

    React to market quickly. Our bulk production allows businesses to move through production phases quickly and easily.

  • 8

    - Production lines -

    Lower cost when producing in low volumes. Roetell's production lines function diverse bottle production simultaneously.

Step-by-step process

#1 Raw materials preparation

Raw materials that we primarily use in the manufacture of glass bottles are sand, soda ash, limestone and cullet.

  • Glass containers raw materials sand Sand
  • Glass containers raw materials soda ash Soda ash
  • Glass containers raw materials limestone Limestone
  • Glass containers raw materials cullet Cullet

#2 Batching process

The glass bottle and jar production is a continuous process. The batching is done continuously to feed the furnace by belt conveyer since the furnace beginning.

Raw materials are proportionally fed into the hopers, mixed, and then unloaded and transferred to the furnace. The mix of raw materials will be added to the furnace like a batch. In this phase, we make sure the composition of the mix is the same for all the products.

Glass containers batching process

#3 Melting process

During the melting stage, the raw materials are heated at the temperature of 1600℃ and melted into a viscous mass. The mold temperature is automatically regulated by our software and integrated control room at any given moment. The process starts with water evaporation, followed by the burn-off of organic matters and silica transformation, and then the composition begins to melt.

After melting, the molten glass is cooled to lower temperature to make the viscous condition.

Glass containers melting process

#4 Forming process

Two basic principles of formation are used in manufacture: Blow and Blow (BB) and Press and Blow (PB).

Blow and Blow

In the Blow and Blow process, both the parison and the final product are created by blowing compressed air or other gases.

Glass containers blow and blow gob dropped into black mold Gob dropped into black mold
Glass containers blow and blow neck formed Neck formed
Glass containers blow and blow process blank blown Blank blown
Glass containers blow and blow blank shape Blank shape
Glass containers blow and blow blank transferred to blow mold Blank transferred to blow mold
Glass containers blow and blowfinal shape blown Final shape blown
Glass containers blow and blow finished bottle Finished bottle
Press and Blow

In the Press and Blow process, the glass gob is pressed using a physical plunger to form the parison in the blank mold. As in the BB process, the parison is transferred to the finishing mold and blown to achieve the final container shape.

Glass containers press and blow gob dropped into black mold Gob dropped into black mold
Glass containers press and blow plunger presses blank shape Plunger presses blank shape
Glass containers press and blow blank pressed Blank pressed
Glass containers press and blow blank shape Blank shape
Glass containers press and blow blank transferred to blow mold Blank transferred to blow mold
Glass containers press and blow final shape blown Final shape blown
Glass containers press and blow finished jar Finished jar

#5 Annealing

When the glass container is formed, the glass is cooled to a temperature which allows the atoms to move freely while still preserving the glassware’s dimensional characteristics.

We control the annealing process to:

  • Ensure the consistency of material
  • Minimize stresses
  • Prevent spontaneous breakage
Glass containers annealing

Quality inspection and glass recycling

After the individual product has reached the end of its life-cycle, quality inspection and glass recycling bring added value to glassworks and clear cullet (broken glass).

Consult Your Roetell Glass Bottles & Packaging Experts

We help you avoid the pitfalls to deliver the quality and value your glass bottle and jar need, on-time and on-budget.

Contact Roetell
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