Automatic Vacuum Capping Machine with Steam for Glass Bottles
An automatic vacuum capping machine with steam seals glass bottles and jars by filling the headspace with steam, applying the cap, and letting the steam condense into a vacuum as the container cools. The Warlter steam vacuum capping machine, model LW-CTS200, is built from stainless steel and runs on a PLC control system.
It is made for food and beverage producers who need a tight, repeatable seal on glass packaging. Whether you fill sauces, jams, juices, seasonings or bird's nest, this vacuum capping machine with steam helps protect freshness, extend shelf life and reduce leaks.
Xuzhou Warlter Packaging Products Co., Ltd. has supplied glass jars, bottles and metal lids to global markets since 2014. That packaging background means we understand how the capper, the bottle and the cap work together. This page is part of our Auto Capping Machine range.
Steam Vacuum Capping Machine at a Glance
| Item | Details |
|---|---|
| Machine type | Automatic steam vacuum capping machine |
| Model | LW-CTS200 |
| Best for | Glass bottles and jars with metal twist-off and screw caps |
| Sealing method | Steam injection with vacuum formation (vacuum and non-vacuum modes) |
| Control system | PLC |
| Frame material | Stainless steel |
| Bottle height | 60 to 280 mm standard, customizable |
| Vacuum level inside bottle | At least 0.066 MPa |
| Steam supply required | Above 0.4 MPa |
| Power | 220V / 50Hz, 1.5 kW |
| Warranty | 1 year |
| Manufacturer | Xuzhou Warlter Packaging Products Co., Ltd., China |
What Is a Steam Vacuum Capping Machine?
A steam vacuum capping machine, also called a steam vacuum capper or vacuum steam capping machine, is a packaging machine that creates a vacuum inside a filled container at the moment it is capped.
It does this with steam. A short flow of steam pushes air out of the headspace, which is the small gap between the product and the cap. When the cap is tightened and the bottle cools, the steam turns back into water. That change pulls a partial vacuum inside the bottle.
The vacuum holds the cap firmly in place. It also removes much of the oxygen that can spoil food, change flavor or shorten shelf life. Many twist-off caps have a safety button that pulls down when a good vacuum forms, which gives buyers a simple sign that the seal is intact.
Steam vacuum capping is widely used for hot-filled and warm-filled products in glass. It is a different method from mechanical vacuum capping, which removes air without steam. We compare the two later on this page.
How Does an Automatic Vacuum Capping Machine with Steam Work?
The process runs in a few automated steps on a continuous line:
Bottles arrive. Filled bottles move along the conveyor and are guided into position.
Caps are fed. Caps are placed on the bottle neck, ready for sealing.
Steam is applied. Steam flows across the headspace and pushes the air out.
The cap is tightened. The capping unit spins the cap on while the headspace is full of steam.
The bottle cools. The steam condenses and a vacuum forms inside the sealed bottle.
Sealed bottles exit. Bottles move on to labeling, inspection and packing.
Because the steps are automated and controlled by a PLC, every bottle gets the same treatment. That consistency matters when you run large batches every shift.
Key Features of the Warlter Vacuum Capping Machine
The LW-CTS200 is designed for stable daily production. Its main features are:
Vacuum and non-vacuum sealing. The machine can seal with vacuum or work as a standard capper, which helps if some of your products do not need vacuum.
Automatic operation. A high level of automation reduces manual handling and labor.
PLC control. Operators manage the machine through a PLC, so day-to-day use stays simple.
Stainless steel structure. Stainless steel is a common choice in food plants because it resists corrosion and is easy to wipe down.
Strong adaptability. It works across a range of bottle heights and can be customized for your containers.
Low maintenance. The design focuses on easy operation and low maintenance needs.
One-year warranty. Every machine comes with a one-year service period.
Vacuum Capping Machine Specifications
These are the core specifications for model LW-CTS200.
| Specification | Details |
|---|---|
| Model | LW-CTS200 |
| Power supply | 220V / 50Hz |
| Power consumption | 1.5 kW |
| Control system | PLC |
| Material | Stainless steel |
| Applicable bottle height | 60 to 280 mm (customizable) |
| Steam pressure requirement | Above 0.4 MPa |
| Vacuum level inside bottle | At least 0.066 MPa |
| Production capacity | CONFIRM with engineering before publishing |
| Overall dimensions (L x W x H) | CONFIRM with engineering before publishing |
| Warranty | 1 year |
Specifications can change with bottle size, cap type and project needs. Send us your container details and we will confirm the final configuration before production.
Which Bottles, Jars and Caps Can It Handle?
The machine is built for glass bottles and jars. The standard height range for model LW-CTS200 is 60 to 280 mm, and other sizes can be customized.
Cap type matters as much as bottle size. Tell us whether you use metal twist-off caps, lug caps or screw caps, and give us the cap diameter, so we can set up the capping head correctly.
Bottle shape also affects how the bottle is guided during capping. Round bottles and jars are the easiest to run. Square, oval or tall narrow bottles may need different guides.
If you also need closures, Warlter supplies easy-open twist-off metal lids that match the capping head setup, so the cap and the machine work together.
Applications of a Steam Vacuum Capper
A steam vacuum capper suits any sealed glass container that needs better freshness and a tight closure. Common applications include:
Sauces and seasonings, such as hot sauce, chili sauce and soy-based products
Jams, fruit spreads and honey
Pickles and preserved vegetables
Juices and other beverages in glass bottles
Bird's nest and other premium products in glass jars
Baby food and prepared foods in glass jars
Many customers pair this machine with our glass jars for jams, sauces and premium food products.
The right setup depends on your product, fill temperature and shelf-life goals. Steam vacuum capping is not right for every product, so we recommend testing with your actual bottle and cap.
Steam Vacuum Capping vs Mechanical Vacuum Capping
Both methods create a vacuum in the bottle, but they do it differently. This table shows the main points.
| Feature | Steam vacuum capping | Mechanical vacuum capping |
|---|---|---|
| How the vacuum forms | Steam pushes out headspace air, then condenses as the bottle cools | Air is removed by vacuum before the cap is sealed |
| Steam supply | Required | Not required |
| Typical fill | Hot or warm fill | Hot or cold fill |
| Moisture in headspace | Steam adds a little moisture | No steam moisture |
| Best choice when | You hot fill glass and have a steam source | You want a steam-free line or have no steam source |
The Warlter LW-CTS200 is the steam type. If you have no steam supply, or your product cannot tolerate steam, contact us and we will talk through the right option from our auto capping range.
How to Choose a Vacuum Capping Machine
Use this checklist before you request a quote:
Confirm your container. Note the bottle or jar height, diameter and glass finish.
Confirm your cap. Note the cap type, diameter and material.
Check your steam supply. A steam capper needs a steam source. This model requires pressure above 0.4 MPa, and you may need a steam generator.
Set your output target. Decide how many bottles per minute you need now and in the future.
Think about fill temperature. Hot, warm and cold fills can lead to different setups.
Plan your line layout. Check where the machine sits between the filler and the labeler, and how much floor space you have.
Decide on automation. Consider cap feeding, PLC settings and any inspection needs.
Ask about support. Ask about installation, operator training, spare parts and warranty.
A good supplier reviews these points with you before recommending a configuration.
Customization and Production Line Integration
No two bottling lines are the same. The LW-CTS200 can be adjusted for bottle height, cap size and layout. Its flexible design allows integration with different line configurations and capping units on the same production line.
We can discuss conveyor connections, cap feeding and compatibility with your existing filler and labeling equipment. If you run several bottle sizes, tell us which ones you use most so we can plan the setup around them.
Why Choose Warlter as Your Vacuum Capping Machine Manufacturer?
Warlter Packaging is based in Xuzhou, China, and was established in 2014. We focus on glass packaging and easy-open lid systems for global markets.
Packaging expertise. We make glass jars, bottles and metal lids, so we know how containers and closures behave on the line.
Application-based advice. We review your bottle, cap and output target before suggesting a setup.
Clear specifications. Model number, steam pressure and vacuum level are stated up front.
Support and warranty. Every machine includes a one-year warranty and technical assistance.
Global supply. We serve buyers around the world.
Ask our team for the catalog and certifications for more company information.
What to Send for a Quote
Share these details and our team can reply with a configuration and quotation faster:
Photo or drawing of the bottle or jar, with height and diameter
Cap type and cap diameter
Your product and fill temperature
Target output per minute or per hour
Whether you have a steam source on site
Local voltage and frequency
Destination country
Frequently Asked Questions About Steam Vacuum Capping Machines
What is a steam vacuum capping machine?
A steam vacuum capping machine seals glass bottles and jars after steam has pushed the air out of the headspace. As the sealed bottle cools, the steam condenses and creates a vacuum that holds the cap tight and helps protect the product.
How does a vacuum capping machine with steam work?
Filled bottles move into the machine, steam flows across the headspace, and the cap is tightened. When the bottle cools, the steam turns back into water and a vacuum forms. The whole process is automated and controlled by a PLC.
What is the difference between a vacuum capping machine and a steam vacuum capper?
Vacuum capping machine is the general term for any capper that creates a vacuum. A steam vacuum capper is one type that uses steam to do it. Other vacuum cappers remove air mechanically and do not use steam.
What bottles can the Warlter automatic vacuum capping machine seal?
It is designed for glass bottles and jars. The standard height range for model LW-CTS200 is 60 to 280 mm, and other sizes can be customized. Share your bottle and cap details and we will confirm compatibility.
Does the machine need a steam generator?
The machine needs a steam supply at a pressure above 0.4 MPa. If your plant has no steam source, you will need a steam generator. Tell us about your setup when you request a quote and we will advise.
Can the machine cap bottles without vacuum?
Yes. The machine is designed for both vacuum and non-vacuum sealing, so it can also work as a standard capper for products that do not need a vacuum.
What vacuum level does the machine achieve?
Model LW-CTS200 is specified at a vacuum level of at least 0.066 MPa inside the bottle. The vacuum you see in practice depends on fill temperature, headspace, cap type and bottle shape.
What warranty and support come with the machine?
The machine includes a one-year warranty. Installation, operator training and spare parts support can be discussed as part of your quotation.
Can the vacuum capping machine be customized?
Yes. Bottle height, cap size and line layout can be adjusted to suit your project. We can also discuss integration with your existing filling and labeling equipment.
What information do I need to request a quote?
Send the bottle size, cap type and diameter, product and fill temperature, target output, steam availability, local voltage and destination country. Photos or drawings help our team respond faster.
Get a Quote for Your Steam Vacuum Capping Machine
Tell us about your bottle, cap and output target, and the Warlter team will recommend the right configuration. Request a Quote or Download Catalog to get started.