Sealing Machine
Packaging Equipment
Sealing Machine
Professional Packaging Equipment Supplier
1. Product Overview
The sealing machine is automated packaging equipment purpose-built to seal a wide range of containers — bottles, cans, cups, bags, and boxes. Built around a sealing mechanism, conveying system, temperature control system, and PLC control, it serves sealing operations across the food, beverage, pharmaceutical, and daily chemical industries. Widely applicable to: heat sealing, electromagnetic induction sealing, capping, vacuum sealing, ultrasonic sealing, and other scenarios. Equipment features: reliable seal, high sealing speed, consistent sealing quality, wide range of applicable containers, high degree of automation, compliance with food safety and hygiene standards, ensuring products do not leak or become contaminated during transport and storage.
2. Working Principle
Different sealing types have different working principles. Heat sealing heats the sealing mold to melt the heat-seal layer of packaging materials (plastic film, aluminum foil, etc.), forming a seal under pressure after cooling. Electromagnetic induction sealing uses high-frequency electromagnetic fields to generate eddy currents in the aluminum foil seal, melting the foil and bottle mouth heat-seal layer together. Screw capping tightens the cap onto the bottle-neck thread at a preset torque to form a mechanical seal. Vacuum sealing removes air from the container before sealing to extend shelf life. Ultrasonic sealing uses frictional heat from ultrasonic vibration to melt contact surfaces, suitable for applications where external heating is not permitted. The PLC control system precisely controls key parameters including temperature, pressure, time, and torque.
3. System Classification
By Sealing Method
| Type | Sealing Speed | Features |
|---|---|---|
| Heat Sealing | 10–60 cycles/min | Suitable for bags/cups, heat-seal film materials |
| Induction Sealing | 20–100 bpm | Non-contact, suitable for bottle aluminum foil sealing |
| Screw Capping | 30–300 bpm | Suitable for threaded caps, adjustable torque |
| Vacuum Sealing | 5–20 cycles/min | Vacuum before sealing, extended shelf life |
| Ultrasonic Sealing | 10–40 cycles/min | No external heating, suitable for special materials |
By Automation Level
| Type | Features | Application |
|---|---|---|
| Manual | Manual operation, simple structure | Small batch, laboratory |
| Semi-Automatic | Manual loading, automatic sealing | Small-medium batch production |
| Fully Automatic | Auto loading, sealing, output | Large-scale continuous production |
| In-Line | Integrated with production line | Assembly line integration |
4. Detailed Technical Parameters
4.1 Key Component Materials
| Material | Applicable Conditions | Temperature Range | Features |
|---|---|---|---|
| 304 Stainless Steel | General food/beverage | ≤120°C | Standard food grade, cost-effective |
| 316L Stainless Steel | Corrosive media/pharmaceutical | ≤150°C | Pharma grade, corrosion resistant |
| Copper Alloy (Induction Head) | Electromagnetic induction | ≤200°C | Good conductivity, high efficiency |
| Titanium Alloy (Ultrasonic Horn) | Ultrasonic sealing | ≤300°C | Wear resistant, excellent acoustic properties |
4.2 Typical Specifications
| Sealing Method | Speed | Sealing Size | Container | Power | Air Pressure |
|---|---|---|---|---|---|
| Heat Sealing | 10–60 cpm | W50–350mm | Bag/Cup/Box | 0.5–3kW | 0.4–0.6MPa |
| Induction | 20–100 bpm | Mouth 20–120mm | Bottle/Can | 1–5kW | — |
| Screw Capping | 30–300 bpm | Cap 18–120mm | Bottle | 0.75–4kW | 0.4–0.6MPa |
| Vacuum | 5–20 cpm | Mouth 50–200mm | Can/Bag | 1–3kW | — |
| Ultrasonic | 10–40 cpm | W30–200mm | Bag/Tube | 0.5–2kW | — |
4.3 Design Conditions and Performance
| Parameter | Specification |
|---|---|
| Heat seal temperature range | 50°C–250°C (adjustable) |
| Temperature accuracy | ±1°C |
| Capping torque range | 5–80 N·m (adjustable) |
| Torque accuracy | ±5% |
| Seal strength | ≥80% of material body strength |
| Vacuum level (vacuum sealing) | ≤-0.08 MPa |
| Safety configuration | Over-temperature protection, emergency stop, guard |
4.4 Electrical Parameters
| Region | Voltage | Frequency |
|---|---|---|
| China/Russia/Central Asia | 380V | 50Hz |
| Middle East/Southeast Asia/Africa | 400V / 415V | 50Hz |
| South Korea | 380V | 60Hz |
| Americas (if required) | 440V / 480V | 60Hz |
Please specify local voltage and frequency when placing an order.
5. Core Component Selection
| Component | Common Brands | Features & Application |
|---|---|---|
| PLC Controller | Siemens/Mitsubishi/Omron | Stable, reliable, flexible programming |
| Touch Screen | Weintek/Siemens | HMI, convenient parameter setting |
| Temperature Module | Omron/Shimaden | High-precision PID control |
| Servo Motor | Yaskawa/Panasonic/Delta | Precise torque control |
| Induction Head | Custom/Imported | High-efficiency electromagnetic induction |
| Ultrasonic Transducer | Branson/Xindong | Stable power, long life |
Customers may specify brand preferences. Refurbished equipment subject to stock availability.
6. Typical Applications
Food Industry: Snack bag sealing, yogurt cup sealing, canned vacuum sealing
Beverage Industry: Bottled water capping, juice induction sealing
Pharmaceutical Industry: Medicine bottle foil sealing, oral liquid capping
Daily Chemical Industry: Shampoo bottle capping, cream jar sealing
Chemical Industry: Solvent drum sealing, coating can sealing
7. Design Standards and Certification
| Standard | Description |
|---|---|
| GB/T 24570-2009 | General technical conditions for liquid food packaging equipment |
| GB 16798-1997 | Food machinery safety and hygiene |
| ISO 9001:2015 | Quality management system |
| CE | Available for international orders upon request |
| EAC | Available for Russia and Central Asia markets |
| GOST-R | Available for Russian market upon request |
| cGMP/FDA | Compliant design available for pharmaceutical industry |
8. Customizable Options
| Option | Details |
|---|---|
| Sealing method | Heat seal/Induction/Capping/Vacuum/Ultrasonic |
| Number of sealing heads | 1/2/4/6/8 heads |
| Contact material | 304SS/316L/Copper alloy/Titanium alloy |
| Sealing size | Customized per container dimensions |
| Temperature accuracy | Standard ±2°C / High precision ±1°C |
| Online inspection | Seal strength testing, leak detection |
| Control system | PLC+Touch screen/SCADA integration |
| Safety configuration | Guard, emergency stop, light curtain |
9. Warranty Terms
| Equipment Status | Warranty Period | Warranty Scope |
|---|---|---|
| New equipment | 12 months | Sealing mechanism, temperature control, conveying system, electrical components |
| Refurbished equipment | 6 months | Sealing mechanism, temperature control, conveying system, electrical components |
| Idle equipment (as-is) | 3 months | Main functional components |
Final warranty terms are subject to the contract. All orders include installation guidance and remote commissioning support.
10. Packaging and Delivery
| Item | Packaging Method |
|---|---|
| Main machine | Anti-rust treatment, plastic film wrapping, wooden crate |
| Sealing head/Induction head | Independent sealed packaging, anti-collision |
| Electrical components | Waterproof sealed packaging in wooden crate |
| Accessories and spare parts | Sorted packing, with packing list |
Container estimate: Small sealing machines fit in one 20GP; large multi-station machines require 40HC.
11. Information Required for Quotation
To receive an accurate quotation, please provide the following information:
Sealing method required (heat seal/induction/capping/vacuum/ultrasonic)
Container type and dimensions
Required sealing speed
Sealing material (film/foil/cap specifications)
Seal strength requirements
Torque requirements (capping)
Vacuum level requirements (vacuum sealing)
Local voltage and frequency
Equipment status preference: New/Refurbished/Idle
Budget range and brand preferences (if any)
Delivery terms: FOB/CIF/DDP
Destination port or delivery address (for freight calculation)