288 verified Chinese sealing machine manufacturers. Bag Sealer, Induction Sealer, Continuous Band, Cup Sealer and more. OEM & custom, factory-direct.
A sealing machine is industrial equipment designed to automate the sealing process in production lines. It replaces manual operations with consistent, high-speed output that reduces labor costs, improves quality control, and increases throughput.
These machines serve diverse industries including food and beverage, pharmaceuticals, cosmetics, chemicals, and consumer goods — from compact semi-automatic units to fully automated high-speed systems.
Impulse sealers use a heated nichrome wire to melt thermoplastic films (PE, PP, PVC) for a brief burst, then cool under pressure. Hand-held and pedal models handle bags up to 600mm wide. Ideal for low-volume bag sealing, retail repacking, and food prep. Sealing width: 2–5mm. Simple, low-cost, and nearly maintenance-free.
Continuous band sealers feed bags through heated rollers or bands on a conveyor for uninterrupted sealing. Best for high-volume bag sealing: snacks, coffee, chemicals, medical supplies. Speed: 0–12m/min depending on model. Available with vertical (standing pouches) or horizontal (flat bags) feeding, plus optional nitrogen flush and date coding.
Induction sealers use electromagnetic energy to bond an aluminum foil liner to the mouth of a bottle or jar, creating a tamper-evident, leak-proof, hermetic seal. Used on food jars, medicine bottles, cosmetic containers, and chemical bottles. Hand-held wands and automated inline systems are both available. Works with PE, PP, PET, and glass containers.
Vacuum sealers remove air from the package before sealing, extending shelf life and preventing oxidation. Chamber vacuum sealers evacuate a chamber containing the bag; nozzle-type sealers insert a probe into the bag. Applications: meat, cheese, coffee, electronics, and industrial parts. Chamber models handle liquids; nozzle models suit irregular shapes.
Cup sealers apply a pre-cut lid film to cups, trays, or bowls — common in yogurt, bubble tea, ready meals, and deli containers. Manual single-cup, semi-automatic, and fully automatic rotary models are available. Sealing temperature and dwell time are adjustable for different lid film materials (PP, PET, aluminum foil laminate).
Tube sealers close the open end of laminate, plastic, or aluminum tubes — used in cosmetics (creams, gels), pharmaceuticals (ointments), and food (condiments). Ultrasonic sealers fuse without external heat for clean, strong seals; hot-jaw sealers use heated crimping. Coding (date/lot) can be embossed or inkjet-printed during the seal.
Tray sealers bond a top film or lid to pre-filled trays — fresh meat, produce, ready meals, and bakery items. Semi-automatic single-tray and automatic inline models available. Options include modified atmosphere packaging (MAP) for extended shelf life and peelable/resealable lid films.
Compatible packaging materials determine the correct machine configuration:
Use our sealing machine supplier directory to browse 288 verified manufacturers. Then run this five-step process:
Standard lead times run 15–30 days for stock models and 30–60 days for custom builds. Sea freight takes 15–35 days depending on destination; most factories ship FOB Chinese ports and work with your freight forwarder.
Sealing machine prices are the most accessible entry point into packaging automation — even manual sealers solve real production bottlenecks. Prices scale with sealing width, speed, and automation level. These ranges are ex-works from verified factories in 2025–2026.
Most Chinese factories offer OEM/ODM customization. Common options include:
Treat price ranges as ex-works references: the same "automatic packing machine" can vary 3–5× in price depending on frame material, brand of electrical components, and dosing system. Compare quotes specification-for-specification, and request quotes from several factories in parallel.
See how sealing machines fit into complete solutions by industry:
📍 Shanghai, Shanghai
Packaging Machine Production Line,canned production line,filling machine,conveyor,labeling sleeve machine
🏢 51 - 100 People
🌍 Exports to: Domestic Market, Southeast Asia
📍 Wenzhou, Zhejiang
Filling Machine,Labeling Machine,Capping Machine,Sealing Machine,Automatic Filling Line
🏢 51 - 100 People
🌍 Exports to: Domestic Market, Southeast Asia
📍 Wenzhou, Zhejiang
Packaging Machine
🏢 51 - 100 People
🌍 Exports to: Domestic Market, South America
📍 Nantong city, Jiangsu
Cartoning Machinery,Overwrapping Machinery,Sealing Machine,Carton Sealer,Wrapping Machine
🏢 5 - 10 People
🌍 Exports to: North America, Eastern Europe
📍 Guangzhou, Guangdong
Sealing Machine, Filling Machine, Capping Machine, Labeling Machine, Filling And Packaging Production Line
🏢 -1
🌍 Exports to: Domestic Market:50, Western Europe:20
📍 wenzhou, Zhejiang
Sealing Machine,Vacuum Machine,Shrink Machine,Wrapping Machine,Coding Machine
🏢 501 - 1000 People
🌍 Exports to: Domestic Market, South Asia
📍 Guangzhou, Guangdong
Filling machine,Capping machine,Labeling machine,Filling line,Sealing machine
🏢 11 - 50 People
🌍 Exports to: Western Europe, North America
📍 Shanghai City, Shanghai
Tin Can,Food Can,Tin Lid,Tin End,Tin Plate
🏢 301 - 500 People
🌍 Exports to: Eastern Europe, Southeast Asia
Get factory-direct quotes for sealing machine from verified Chinese manufacturers.