A high-performance packaging machine is the result of a complex integration of countless precision components and automated control systems. As a professional supplier of packaging machinery components, Hansheng Automation supports the manufacturing of this type of equipment. From precision CNC machining with tolerances controlled to ±0.005mm to the casting of large structural parts, encompassing gear machining, precision CNC machining, and casting, every component we produce is a work of art. Now, let me explain what a double-chamber vacuum packaging machine is.
What is a double-chamber vacuum packaging machine?
A double-chamber vacuum packaging machine is characterized by two independent vacuum chambers. They operate in alternating fashion: while chamber A is evacuating and heat-sealing, the operator can simultaneously load and prepare chamber B. Its construction is constructed of 304 stainless steel, offering high strength and resistance to breakage, meeting international standards for food contact.
What are the key components of this equipment?
304 Stainless Steel Body and Vacuum Chamber
The entire structure, including the vacuum chamber and frame, is constructed from 304 stainless steel. This material offers excellent corrosion resistance, mechanical strength, and meets the stringent hygienic standards of the food and pharmaceutical industries. We supply high-quality stainless steel components and accessories that meet OEM standards.
PLC Control System and HMI Human-Machine Interface
This equipment is controlled by an advanced programmable logic controller (PLC) and a human-machine interface (HMI) touch screen. These controls precisely manage vacuum level, sealing time, and temperature.
Industrial-Grade Vacuum Pump
The vacuum pump is the core component of any double-chamber vacuum packer. It is responsible for rapidly extracting air from the vacuum chamber to achieve the desired vacuum level. A high-quality, branded vacuum pump is essential for achieving fast pumping speeds, a high ultimate vacuum level, and long-term operational stability. Regular maintenance of the vacuum pump and its components (such as pump oil and filters) is essential.
Heat Sealing System
The system consists of several consumable parts that work together, including the following:
Nichrome heating wire: Embedded in the sealing bar, it provides consistent, durable heat to melt the packaging film.
Teflon sealing strip: This high-temperature coating prevents the packaging material from sticking to the heating strip and ensures a smooth, even seal.
Silicone sealing pad: It applies even pressure to the sealing strip, crucial for creating an airtight, wrinkle-free seal.
Dual-Chamber Alternating Design
The dual-chamber design is a key feature of the Double Chamber Vacuum Packaging Machine. While one vacuum chamber is performing the evacuation and sealing cycle, the operator can simultaneously load and unload materials in the other. This significantly increases output compared to single-chamber equipment.
What is the operating procedure of a Double Chamber Vacuum Packaging Machine?
Vacuum
The vacuum chamber is closed, and the vacuum pump activates. The vacuum chamber begins to evacuate, simultaneously creating a vacuum inside the bag. When the vacuum reaches the specified value, the vacuum pump stops. Simultaneously, the heat sealing chamber is evacuated, while the heat press frame remains in place.
Heat Sealing
External air enters the heat sealing chamber through the upper air inlet. The pressure difference between the vacuum chamber and the heat sealing chamber inflates the heat sealing chamber, causing the upper heat press frame to move downward, pressing against the bag opening. Simultaneously, the heat sealing transformer activates, initiating and completing the sealing process.
Return Air
Atmosphere enters the vacuum chamber, the vacuum gauge pointer returns to zero, the heat press frame resets due to the return spring, and the vacuum chamber lid opens.
Cycle
The upper vacuum chamber is moved to the other vacuum chamber, entering the next cycle. The left and right chambers alternate, operating in a repetitive cycle.
Applications of the double chamber vacuum packaging machine
This machine can package solid products such as meat, cheese, vegetables, and electronics. Liquid and semi-fluid products include sauces, soups, marinades, and oils (which often require a special "recessed" vacuum chamber design to prevent liquids from being drawn into the pump).
Further applications include powdered products such as spices, flour, and medicinal powders (which rely on excellent sealing and proper vacuum settings to prevent the powder from being drawn out).
Equipment parameters (taking DZ800/2S as an example)
| Parameter | Specification |
|---|---|
| Vacuum Chamber Size | 920mm × 780mm × 150mm |
| Sealing Length | 800mm × 2 strips |
| Sealing Width | 8 - 10mm |
| Center Distance | 570mm |
| Packaging Capacity | 200 - 400 times/hour |
| Overall Dimension | 1805mm×815mm×940mm |
| Power Supply | 380V, 50Hz, 5kW |
| Mass | 800kg |
FAQ
Q: What are the main advantages of a dual-chamber vacuum packaging machine?
A: Its core advantage is high efficiency. The dual-chamber alternating operation allows for simultaneous loading and vacuum sealing, significantly reducing idle waiting time and achieving theoretical production efficiency twice that of a single-chamber machine. Furthermore, its robust construction and versatility allow it to handle a wide range of materials, from solids to liquids.
Q: Can this machine be used for vacuum packaging using ordinary plastic bags?
A: No. Vacuum packaging requires specialized vacuum packaging bags (typically a nylon + polyethylene/polypropylene composite). These bags are puncture-resistant, stretch-resistant, and have excellent heat-sealing properties to withstand rupture during vacuuming and form a secure seal during heat sealing.
Q: What precautions should be taken when packaging liquids or sauces?
A: When packaging liquids, it is usually necessary to select or customize a machine with a recessed vacuum chamber to reserve space for the liquid to prevent it from being drawn into the vacuum pump and damaging it. Parameters such as vacuum level and heat-sealing time must also be adjusted, and process testing is recommended.
Q: In daily use, which parts are considered consumables and require regular replacement?
A: Common wearing parts and consumables include:
Heat sealing system components: Teflon cloth (high-temperature cloth), nickel-chromium alloy heating wire, and silicone sealing strips. These components will gradually age due to long-term exposure to high temperatures and pressures.
Vacuum pump-related consumables: Vacuum pump oil and exhaust filters must be replaced regularly according to the manual to maintain optimal pump performance.
Q: As a parts supplier, what support can you provide?
A: We specialize in packaging machinery parts supply and technical support. We can provide:
High-quality, genuine, compatible replacement parts (such as vacuum pumps, PLC modules, heating strips, silicone strips, etc.).
A full range of wearing parts and consumables (Teflon cloth, pump oil, etc.).