Ton bag vacuum heat sealing machine

A dedicated integrated vacuum extraction and heat-sealing system for ton-bag openings, which simultaneously evacuates the interior of the ton bag to remove oxygen and seals the bag opening via heat sealing. This effectively prevents moisture absorption, oxidation, and powder re-agglomeration, with specialized design features tailored to the highly hygroscopic and oxidizable characteristics of ultrafine lithium-ion battery powders and chemical powders. The cabinet-style model is the flagship product, featuring a fully sealed cabinet for vacuum extraction with an ultimate vacuum level exceeding –80 kPa. It employs dual-zone, double-sided heating with adjustable temperature and time settings, displayed in real time on a touch screen. The lithium-ion battery–specific version incorporates a filter cartridge with reverse-air blowing and secondary filtration to prevent material from being drawn out during the process. The entire operation is one-touch, seamlessly integrated with a PLC control system for high automation.

Product Categories

1. External-Draw Heat Sealing Machine (MY-WC Series)

Constant-temperature heating with a duck-bill vacuum extraction function; flexible operation, compact footprint, and suitable for vacuum sealing small-batch ton bags of various specifications.

2. Ton-bag box-type heat sealing machine (MY-RH1000, flagship product)

The fully sealed chamber features internal vacuuming, delivering excellent sealing performance and precise control of gas content, making it ideal for the stringent vacuum-sealing requirements of industries such as lithium batteries and chemicals.

Technical Specifications

Basic Configuration

Box-type heat sealing machine

Sealed vacuum chamber, dual heating elements, high-temperature adhesive fabric, thermocouple temperature-control module, rotary-vane vacuum pump, electric lifting mechanism, PLC control module, touch screen, audio-visual alarm, and emergency stop switch.

Lithium-battery-specific configuration

Filter cartridge back-blowing system, titanium alloy secondary filtration exhaust port, copper- and zinc-free heating elements, and a fully stainless steel 304 body.

Main Functions

• Vacuum pumping: internal chamber / duck-bill vacuum extraction, effectively removing air from the ton bag to prevent moisture absorption and oxidation of the material;
• Precision heat sealing: dual-seal, double-sided heating with adjustable temperature and time; thermocouple-based precise temperature control ensures a secure, leak-proof seal.
• One-touch operation: automatic bag sealing, vacuuming, heat sealing, degassing, and clamp release—fully automated throughout the entire process.
• Lithium-battery-specific design: reverse-air cleaning of the filter element combined with two-stage filtration to prevent ultrafine powder from being drawn away, resulting in an extremely low material loss rate; copper- and zinc-free materials to meet the high-purity requirements of lithium batteries.
• Easy maintenance: adhesive high-temperature fabric that can be quickly replaced when damaged, with no need for specialized tools.
• Interlocked Operation: Automatically triggers the bag-sealing process upon arrival of the ton bag on the re-inspection conveyor line;
• Status Display: The touchscreen provides real-time display of vacuum level, heating temperature, and sealing time, with adjustable parameters.

Application Industries

New energy lithium battery materials (lithium iron phosphate, graphite, and cathode/anode materials for lithium-ion batteries), the chemical industry, the pharmaceutical industry, and the food industry (packaging of powdery and granular materials that are hygroscopic, easily oxidized, or prone to caking).