Sealing Head Assembly for Beverage Foil Sealing Machines

Product Specifications

Technical details and manufacturing context for Sealing Head Assembly

Definition

The Sealing Head Assembly is the core functional unit within an Automated Beverage Container Foil Sealing Machine responsible for the final sealing operation. It precisely positions itself over filled beverage containers, applies controlled heat to activate the adhesive layer on the foil lid, and exerts uniform pressure to bond the foil to the container rim, ensuring a hermetic, tamper-evident, and leak-proof seal that preserves product freshness and safety. This assembly is designed for integration into automated production lines, with a sealing diameter range of 20–120 mm, accommodating common container sizes; outside this range, custom tooling is required. It operates at a pneumatic pressure of 1.0–1.6 MPa, with a heating power of 500–1500 W, achieving a temperature range of 150–250 °C with an accuracy of ±2 °C. The cycle time per seal is 1.5–3.0 seconds, influencing throughput. The assembly requires a single-phase 220–240 V AC supply (IEC 60038) and consumes 0.5–1.5 kW total. Air consumption is 10–30 L/min at operating pressure. Constructed from corrosion-resistant stainless steel (SUS304 per ASTM A276) for food contact, it also incorporates high-temperature silicone or PTFE gaskets, ceramic or mica-insulated heating elements, aluminum alloy structural parts, and temperature-resistant polymers for guides and insulators. The assembly weighs 8–15 kg depending on configuration and size, and is rated IP54 (IEC 60529) for protection against dust and water splashes. As a directory listing, CNFX provides reference data only; verify all model-specific values and standards with the legal manufacturer or supplier before procurement.

Working Principle

The assembly lowers onto the container rim. An integrated heating element (often within the head) raises the temperature to a specific setpoint, melting the thermoplastic sealing layer on the underside of the aluminum foil lid. Simultaneously, a pneumatic or mechanical system applies precise, dwell pressure. After a preset time, the heat is disengaged, the pressure is released, and the assembly retracts, allowing the seal to cool and solidify, forming a permanent bond.

Common Materials

Stainless Steel (AISI 304/316), High-Temperature Silicone or PTFE Sealing Gasket, Ceramic or Mica-Insulated Heating Element, Aluminum Alloy (for structural parts), Temperature-Resistant Polymers (for guides/insulators)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Sealing Diameter Range	20–120 mm	Covers common container sizes; outside range requires custom tooling.
Heating Power	500–1500 W	Depends on sealing speed and material.
Temperature Range	150–250 °C	Typical for foil sealing; higher may damage foil.
Temperature Accuracy	±2 °C	Ensures consistent seal quality.
Cycle Time	1.5–3.0 s	Per sealing cycle; affects throughput.
Supply Voltage	220–240 V AC	Single phase; other voltages on request.IEC 60038
Power Consumption	0.5–1.5 kW	Total including heater and controls.
Air Consumption	10–30 L/min	At operating pressure; for pneumatic actuation.
Material	SUS304	Corrosion-resistant for food contact.ASTM A276
Weight	8–15 kg	Depends on configuration and size.
IP Rating	IP54	Protected against dust and water splashes.IEC 60529

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Heating Element / Plate
Provides controlled thermal energy to melt the foil's sealant layer.

Material: Stainless Steel with embedded cartridge heaters or ceramic heating plate
Sealing Gasket / Ring Part
Creates a uniform pressure surface and thermal barrier between the heating element and the foil, ensuring even heat distribution and preventing foil damage.

Material: High-temperature silicone rubber or PTFE (Teflon)
Head Housing / Body
Structural frame that houses internal components, provides mounting points, and guides vertical movement.

Material: Stainless Steel or Aluminum Alloy
Thermal Insulation Part
Minimizes heat transfer to non-sealing parts of the assembly and the machine frame to improve efficiency and safety.

Material: Mica, ceramic fiber, or high-temperature polymer
Actuation Mechanism (Pneumatic Cylinder / Servo Mount)
Provides the controlled vertical motion to lower, press, and retract the sealing head.

Material: Steel (cylinder body), Aluminum (mounting brackets)

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Automated Beverage Container Foil Sealing Machine

View system integration details

Manufacturers of Sealing Head Assembly

Manufacturer profiles associated with Sealing Head Assembly.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 6 September 2026

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Frequently Asked Questions

What is the sealing diameter range of this assembly?

The reference range is 20–120 mm, covering common container sizes. For containers outside this range, custom tooling is required. Always confirm the exact range for your specific model with the manufacturer.

What temperature and pressure are used for sealing?

The assembly operates at a temperature range of 150–250 °C with an accuracy of ±2 °C, and a pneumatic pressure of 1.0–1.6 MPa. These values are reference points; verify the optimal settings for your foil and container materials with the supplier.

What are the electrical requirements?

The assembly requires a single-phase 220–240 V AC supply (IEC 60038) and has a total power consumption of 0.5–1.5 kW, including heater and controls. Confirm the exact voltage and power for your installation.

Is the assembly suitable for food contact?

The material of construction is stainless steel SUS304 (ASTM A276), which is corrosion-resistant and suitable for food contact. However, always verify compliance with local food safety regulations and the manufacturer's specifications.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0.5-2.5 bar (applied pressure)
other spec:	Cycle time: 0.5-3 seconds per seal, Container diameter: 50-150 mm
temperature:	150-250°C (sealing surface)

Sealing Head Assembly

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards