Screw-cap oral liquid bottle Manufacturers

Screw-Neck Glass Bottles in Our Product Range

Our screw-cap oral liquid bottle range covers amber and clear soda-lime glass, with threaded necks formed in one step on fully automatic tubular bottle forming machines. The re-sealable design suits concentrated oral liquids, herbal drinks, portable nutritional supplements, home-dispensed liquid medications and ingestible skincare essences.

We produce screw-neck bottles alongside the wider Oral liquid bottle family, including crimp-finish vials for aseptic filling lines. The threaded version is the practical choice when the filling operation is small to medium scale, when the product is opened repeatedly, or when the closure must be applied by hand or with simple torque equipment.

Where Screw-Cap Oral Liquid Bottles Fit

Threaded glass bottles serve multi-dose and portioned-dose products where the package is opened more than once. Typical contents include peptide oral liquids, collagen drinks, herbal enzyme drinks, vitamin syrups, oral herbal extracts, light-sensitive beauty essences and liquid reagents requiring multiple-dose dispensing.

• Health and wellness: peptide, collagen, enzyme and botanical oral liquids in amber glass for light protection.
• Pharmaceutical subpackaging: vitamin syrups and oral herbal extracts where a tight, leak-proof seal is required.
• Personal care and beauty: ingestible essences and nourishing concentrates that need a premium amber presentation.
• Laboratory: light-sensitive liquid reagents dispensed in multiple doses.

Material and Structural Options

We form the bottle mouth, body and bottom in one step from pharmaceutical-grade soda-lime glass. The servo-controlled forming system holds wall thickness uniformity, and the bottle mouth dimensional tolerance can reach ±0.03 mm, which supports consistent thread engagement with the closure.

Production Capacity and Forming Control

Our factory operates 20 dual production lines in parallel, divided into two main sections. Each line covers glass tube forming, bottle production, annealing, inspection, packing and warehousing, with no intermediate outsourcing or external transfer. A single forming machine runs at 120 pcs/min, and the site supports a daily capacity of 2.88 million pieces at full load.

Ten full-process lines are dedicated to soda-lime glass oral liquid bottles, including 10 ml, 20 ml, 30 ml and 50 ml amber formats. The remaining lines run neutral borosilicate tubular vials in 2 ml to 30 ml sizes. This split lets us schedule screw-neck oral liquid bottle production alongside related vial and ampoule work.

Inspection, Annealing and Traceability

After forming, high-speed vision cameras inspect bottle height, outer diameter, inner mouth diameter, wall thickness and bottom concavity. Bottles with dimensional deviations are automatically rejected, and inspection data is stored in real time for traceability.

• Continuous mesh belt annealing at 580–620 °C for 2–3 hours, with slow gradient cooling to remove internal stress.
• Final inspection for 77 defect types, including cracks, bubbles, black spots, stones, chipped mouths and glass particles.
• Automatic carton packaging with a traceability QR code recording forming machine, batch number and production time.
• Defective glass is crushed and recycled back to the remelting workshop.

Filling, Sealing and Line Integration

The threaded neck is precision-molded as part of the bottle, so sealing can be completed without capping machinery. This suits small filling operations, in-store dispensing and pilot lines, and it also allows the same bottle to be used for daily reuse by the end customer.

We design bottle structure and dimensions for compatibility with filling lines and closure systems. When a project involves an existing filling line, we review the neck finish, bottle height and body diameter against the line interface before sampling. Clean any debris from the threaded neck before filling to ensure a leak-proof seal, and use amber bottles for light-sensitive liquids.

OEM/ODM Customization and Sampling

We support capacity development from 1 ml to 100 ml, material selection across soda-lime and borosilicate glass, structural design, surface finishing and component matching. For customers with mature products, we produce according to drawings or samples with accurate reproduction; for new packaging concepts, we develop jointly based on the target market and application scenario.

1. Technical requirement discussion
2. Material and structure proposal
3. Mold design and development
4. Sample production and testing
5. Client confirmation
6. Mass production and delivery

Standard products can be supplied at lower MOQ for trial orders. Customized product MOQ is evaluated against structure, mold complexity, material requirements and production process. Related glass packaging in our range includes Tubular vial and Freeze Dried Vials for lyophilized and aseptic filling formats.

Information We Use to Configure Your Solution

To prepare a screw-cap oral liquid bottle configuration and quotation, we work from the product and process data below. The more precise the inputs, the faster we can move from proposal to sample.

• Fill volume, target capacity and dose count per bottle
• Liquid composition, pH range and light sensitivity
• Closure type: plastic screw cap, silicone dropper cap or pump dispenser
• Filling method and line interface, including neck finish and bottle height
• Glass colour and material preference
• Surface finishing and branding requirements
• Annual volume, trial order quantity and delivery schedule
• Applicable standard or customer specification for acceptance

Frequently Asked Questions

Do screw-cap oral liquid bottles require capping machinery?

No. The threaded neck is molded into the bottle, so the closure can be applied by hand or with simple torque equipment. This makes the format suitable for small-to-medium-scale filling operations and in-store dispensing.

Which capacities and glass colours can you supply?

We develop capacities from 1 ml to 100 ml, with screw-neck formats commonly produced in 20 ml, 30 ml, 50 ml, 100 ml and 120 ml. Amber and clear soda-lime glass are standard; borosilicate options are available where thermal or chemical resistance is required.

How do you control thread fit and sealing performance?

The bottle mouth dimensional tolerance can reach ±0.03 mm, controlled by the servo forming system and verified by high-speed vision inspection. We also match bottle structure and dimensions to the specified closure system before sampling.

Can you produce bottles to our drawing or existing sample?

Yes. We reproduce products according to customer drawings or samples, and we also support joint development when the packaging concept is still being defined. Sampling and mass production run on the same full-process lines.

What quality documentation accompanies a screw-cap bottle order?

Inspection data is stored in real time during forming, and each carton carries a traceability QR code recording the forming machine, batch number and production time. Testing reports are available as part of our OEM/ODM packaging support.