Xuzhou Zhengxin Glass Products Co.,Ltd. is one of the top glass bottle manufacturers in China. An industry and trade company integrating development, design, production, sales and trade. We offer bulk glass bottles in different shapes and sizes, including Swing Top Bottles For Kombucha, Glass Sauce Bottles With Lids, Otis Classic Swing Top Glass Bottles, Clear Glass Bottle With Wire Bail Swing Top Lid, etc.
Why Choose Us
Production Capacity
We operate 16 cutting-edge glass bottle production lines and no fewer than 25 state-of-the-art furnaces. Our production capabilities allow us to accept large-volume orders year-round, offering a wide range of shapes, sizes, and colors.
Product Application
We have the expertise and capacity to serve a diverse range of industries and clients, including traders, perfumers, cosmetic companies, and food and beverage manufacturers.
Quality Control
All our products are meticulously manufactured in strict adherence to industry standards. We implement a comprehensive quality testing process throughout the entire production cycle.
Custom Service
To meet a variety of customer needs, we offer highly customizable services. If you have specific requirements or creative ideas, please feel free to reach out. Our team is always ready to work with you to create the ideal packaging solution for your products.
We offer stock and custom food grade glass bottles in a variety of shapes, sizes and finishes. Choose from a large stock portfolio. glass bottles are 100% recyclable.
Glass Bottle Sizes
● 5 ml & 10 ml Glass Bottles
5 ml and 10 ml glass bottles in various colors in the euro dropper bottle style with dispensing closures.
● 15 ml & 1/2 oz Glass Bottles
Purchase 15 ml and 1/2 oz small glass bottles in various styles, including euro dropper bottles and boston round bottles.
● 30 ml & 1 oz Glass Bottles
Choose 1 oz and 30 ml glass bottles in vibrant colors with dispensing caps or plastic caps for a wide range of products.
● 50 ml & 100 ml Glass Bottles
Choose from 50 ml and 100 ml glass spice bottles, euro dropper bottles, and flasks with closures designed to dispense products easily.
● 25 oz & Up Glass Bottles
Large glass bottles in higher capacity sizes including 32 oz, 64 oz and 750 ml.
● 2 oz Glass Bottles
Choose from a selection of 2 oz glass bottles in a variety of colors paired with fine mist sprayers, treatment pumps, bulb glass droppers, and more.
● 4 oz Glass Bottles
We provides 4 oz glass bottles in various colors and matched with a variety of closures to package body care products, spa supplies, hair and beard care serums, and much more.
● 8 oz Glass Bottles
8 oz glass bottles are available in styles, including salad dressing bottles, syrup bottles, boston round bottles, and much more.
● 10 - 12 oz Glass Bottles
Clear 10 oz and 12 oz glass bottles in styles that include syrup bottles, sauce bottles, beverage bottles, and more.
● 16 oz Glass Bottles
16 oz clear and amber glass bottles could showcase various products, including home cleaners, food products, and much more.
Type I Glass Bottles
● Molded from borosilicate 3.3 glass with high hydrolytic resistance
● Clear with high transparency
● Amber for UV light protection of sensitive materials
● Narrow and wide mouth openings
Type III Glass Bottles
● Bottles manufactured from clear and amber USP Type III soda-lime glass
● Clear with high transparency
● Amber for light sensitive products
● Narrow mouth bottles are ideal for liquids
● Wide mouth bottles are ideal for dry and viscous samples
Our Company Has More Products to Offer, Please Browse the Product Categories on the Website, If You Have Any Needs, Please Contact Us.
Sand
The main material used in the production of glass is sand. Clear glass is made from a silica sand, which is a fine white sand, free of chemicals. The sand is melted into a liquid at very high temperatures by glass bottle manufacturing companies. Once melted, sand cannot be returned to its original state. The conversion changes sand into a different structure altogether. As the sand cools down, it will never form a complete solid. It remains in the state between a solid and a liquid, known as an amorphous solid. The molten glass is then placed into a mould to produce shaped glass bottles.
Additional materials
To begin the glass bottle making process, the silica sand must be mixed with several other materials. Soda ash (sodium carbonate) is added in a smaller percentage to decrease the melting point of the sand. This allows the sand to melt faster in the furnace, saving energy along the way. Adding only soda ash to the sand would eventually result in the production of a bottle capable of dissolving in water. To avoid such a result, limestone (calcium carbonate) must be added. The resulting glass type is then referred to as soda-lime glass, which accounts for approximately 90% of the world's glass production.
Raw Material Preparation
The process of making glass bottles begins with the selection of raw materials. The raw materials are regularly checked for quality and any foreign materials before they are mixed together.
Batching and mixing
The mixing portion is important to ensure that all batches of the glass bottle are produced to the same quality. The mixture portions must be accurate, therefor specialised equipment's are utilised to regularly test that the specific ratio is consistent before being melted together.
Melting
Next, the glass batch is melted at a high temperature, typically around 1700°C, to create a liquid homogenous glass mixture, called molten glass. The melting process is carefully controlled to ensure that the molten glass is free of impurities and has the desired characteristic properties.
Blow Forming Process
In the modern age of glass bottle manufacturing, once the molten glass has been melted, a precision machinery cuts out a perfectly weighted piece, called a gob, with a blade and with the help of gravity it falls into a mold, typically made of out stainless steel, to begin the blow forming process.
Annealing
Annealing is a process that is used in the production of glass to relieve internal stresses and increase the material's toughness and durability. It is typically used to improve the dimensional stability of the glass bottles and to make them less brittle.
Quality Check (QC)
There are several quality checks that are typically performed on glass bottles once they have been formed. Some of the most common checks include:
● Visual Inspection
● Dimensional Inspection
● Weight Inspection
● Wall thickness inspection
● Hydrostatic pressure test
● Inspection with X-Ray Machine
Packaging and delivery
One common method is to pack the bottles into corrugated cardboard boxes. These boxes are designed to provide protection for the bottles during transport, and they can be easily stacked on top of one another for efficient storage and shipping.
Our Assistance: Customized
For the design of a new glass bottle that will uniquely reflect your image, the our teams will be by your side at every step:
● Collection and formalization of your requirements.
● Validation of the feasibility of your project by our development team.
● Production of samples to allow you to visualize and validate all the technical characteristics of the glass bottle.
● Validation of the technical drawing, control of the samples and formalization of the specification by the quality department.
● Production assistance and recommendations for the use of the glass bottles on bottling lines.
● Validation of the decoration project (our infographics studio makes any enhancements necessary).
● Production of a paper proof followed by a glass proof for the final validation of the decoration.
● Quality control of all the production steps.
● A quality manager is available during all the phases of the glass and decoration project.
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As one of the most professional glass bottle manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to wholesale bulk customized glass bottle made in China here from our factory.
16 Oz French Square Glass Bottles, Prune Juice Glass Bottle, 120ml Amber Glass Jars Lids