Electric Continuous Induction Sealer for Aluminum Foil
The SUNAURA 2300W electric continuous induction sealer is built for real production volumes — up to 300 containers/min on small necks, with a wide Φ30–150 mm sealing head and motorized height/front-back adjustment. Upright power cabinet on adjustable column, independent line-mounted conveyor. The workhorse for food, chemical, and cosmetic bottlers.
Product Description
The SUNAURA electric continuous induction sealer for aluminum foil is a high-throughput production machine built around a 2300W generator and a wide sealing head covering Φ30–150 mm. This is not a bench-top accessory — it is a line-mounted workhorse designed for bottlers and jar packers running real daily volumes, with output up to 300 containers per minute on small necks (5–18 m/min belt speed).
The upright cabinet houses the power electronics on an adjustable column, while the conveyor mounts independently — so the head can swing out of the way, slide front-to-back (0–260 mm), and travel vertically (0–800 mm) to match tall or awkward container ranges. The 20–350 mm container height window covers standard bottles through tall jars. Cooling is configurable: air cooling for standard duty, or optional water cooling for extended 24/7 shifts on large-diameter seals. A stainless-steel enclosure version is available for wash-down food and chemical environments.
Target customers are food producers running large jars and cans, chemical and agrochemical packers filling lubricants and solvents into buckets, cosmetic manufacturers with wide-mouth cream jars, and pharmaceutical bottlers needing reliable high-speed tamper-evident seals. Every unit undergoes a 48-hour continuous run test before shipment.
Technical Specifications
| Model | SNA-P2300 High-Throughput Wide-Head Induction Sealer |
|---|---|
| Sealing Method | Electromagnetic induction, non-contact continuous |
| Sealing Diameter | Φ30 – 150 mm (wide head) |
| Conveyor Speed | 5 – 18 m/min, adjustable |
| Typical Output | 80 – 300 containers/min depending on cap size |
| Max Bottle Height | 20 – 350 mm |
| Head Height Adjustment | 0 – 800 mm vertical |
| Head Front-Back Adjustment | 0 – 260 mm |
| Power | 2300 W |
| Voltage | 220V 50/60 Hz |
| Cooling System | Air cooling (standard) / Water cooling (optional) |
| Conveyor | Line-mounted independent belt conveyor |
| Machine Dimensions | Approx. 700 × 900 × 1500 mm (L × W × H) |
| Net Weight | 60 – 90 kg (configuration-dependent) |
| Certification | CE Certified, ISO 9001 factory |
Key Features & Benefits
- High 2300W output for fast, strong seals: The most powerful stage in the SUNAURA continuous range — handles wide caps and fast belt speeds without weakening bond strength.
- Wide sealing diameter Φ30–150 mm: Covers small 30 mm bottles through 150 mm wide-mouth jars, tubs, and buckets on a single head — no head swaps across your product range.
- Motorized / hand-adjustable head over wide travel: Vertical 0–800 mm and front-back 0–260 mm adjustment accommodate tall, short, and off-center container arrangements. Optional motorized adjustment for push-button recipe recall.
- High throughput up to 300 containers/min: At 18 m/min belt speed with small 30 mm necks, output reaches 250–300 BPM — competitive with purpose-built inline packaging equipment.
- Optional water cooling for extended duty: The standard air-cooled version suits most shifts; the water-cooled variant sustains 24/7 production on large-diameter seals where heat build-up is highest.
- Stainless-steel enclosure for wash-down: Available in food-grade stainless cabinet for food, dairy, and chemical environments where regular cleaning is required.
- Automatic over-current / over-voltage protection: Solid-state protection circuits shut down the generator before component damage, and fault codes display on the digital panel for fast diagnosis.
Application Industries
Food — Large Jars & Cans
Wide-mouth honey jars, sauce cans, large nut butter jars, and institutional food containers — hermetic foil seal prevents spoilage and leakage through retail distribution.
Chemicals & Lubricants
Motor oils, solvents, industrial adhesives, and coatings in jugs and buckets — leak-proof foil seal protects workers and prevents spillage in transport.
Agrochemicals
Pesticides, liquid fertilizers, and chemical solutions in jugs and wide-mouth containers — tamper-evident, leak-resistant sealing for hazardous materials.
Pharmaceutical
Bulk ointments, creams, and liquid preparations in large jars — tamper-evident foil seals support GMP and pharmacy dispensing requirements.
Cosmetics — Wide-Mouth Jars
Face creams, body butters, hair masks, and waxes in 80–150 mm wide-mouth jars — prevents leakage during shipping and preserves formulation integrity.
Industrial Packaging
Waxes, resins, inks, and other industrial liquids in pails and wide-mouth containers — foil barrier prevents evaporation and contamination.
Container compatibility: Plastic (PET, HDPE, PP) and glass bottles, jars, jugs, and buckets with mouth diameters from 30 to 150 mm. Not suitable for metal containers or metal caps.
How Induction Foil Sealing Works
Induction sealing bonds an aluminum foil disc to the container mouth using electromagnetic energy — no contact, no glue, no consumables beyond the liner. On this high-throughput electric continuous sealer, the cycle runs automatically at line speed:
- Capped container enters under the wide sealing head. Bottles, jars, or buckets transfer from your capper onto the line-mounted belt. Side guides center each cap beneath the 30–150 mm wide RF head.
- Photo-eye triggers the 2300W generator. As the container passes under the sensor, the high-power generator activates, producing a high-frequency alternating magnetic field that passes through the cap and induces eddy currents in the aluminum foil liner.
- Foil heats almost instantly. Eddy current resistance in the aluminum layer raises the foil temperature within fractions of a second — fast enough to keep pace with 300 containers/min on small necks.
- Wax melts, heat-seal film bonds to rim. The wax layer melts and absorbs into the pulp board (retained inside the cap). Simultaneously, the polymer film on the foil underside melts and fuses to the container rim — glass, PET, HDPE, or PP.
- Sealed container exits to downstream packaging. The foil disc remains bonded to the container mouth as a visible, tamper-evident, hermetic seal. When the end user unscrews the cap, the pulp liner stays in the cap and the foil stays on the rim.
Is This High-Throughput Foil Sealer Right for Your Line?
This 2300W model is the top of the SUNAURA continuous range. It is the right choice when your production demands exceed what mid-range air-cooled units can sustain. Use the four checks below:
- You run wide-mouth containers over 60 mm: The 30–150 mm head is purpose-built for large jars, buckets, and wide-mouth formats. If your caps are all under 60 mm, the 2000W mid-range model will seal them at lower capital cost.
- Throughput exceeds 120 containers/min: At 18 m/min belt speed with 30 mm necks, this machine delivers 250–300 BPM. If your line runs under 120 BPM, the 2000W model is more cost-effective.
- You need extended duty cycles (8+ hours/day): Consider the optional water-cooled configuration. Air cooling works for standard shifts, but water cooling dissipates heat more efficiently for 24/7 production on large-diameter seals.
- You have wide container height variation: The 0–800 mm head travel and 20–350 mm container height window accommodate tall bottles, short jars, and awkward bucket formats in a single machine. Send us your range and we will confirm head travel.
Troubleshooting Guide — Common Issues & Solutions
High-power wide-head sealers handle fast lines and large formats, which creates its own set of tuning challenges. Below are the issues our engineers see most often on 2300W installations. Always disconnect power before inspecting the sealing head.
| Problem | Possible Causes | Solutions |
|---|---|---|
| Weak seal on 100mm+ wide-mouth jars | Power not scaled to wide diameter; belt too fast; head gap too large; foil liner too thin. |
|
| Overheating on continuous wide-jar runs | Air-cooled unit pushed past duty cycle; fan vents blocked; no water cooling for 24/7 duty. |
|
| Arcing or sparking near sealing head | Metal objects near head; foil edge protruding above cap; cracked Teflon insulator; excessive power for cap size. |
|
| Missed seals at high belt speed | Photo-eye trigger timing off; containers spaced too closely; power ramping too slow. |
|
| Head not aligning with different container heights | Height scale not recalibrated; locking brake slipped; motorized actuator fault. |
|
| Foil tears on large jars after seal | Over-powering; jar rim chipped; foil liner off-center; jar too hot from filling. |
|
For high-power wide-head installations, send us your widest and narrowest container samples — our engineers will tune power, speed, and head position on a bench unit before shipment. Contact [email protected].
Frequently Asked Questions
What does “electric continuous” mean for this sealer?
“Electric” refers to the transistorized high-frequency power supply (as opposed to older tube-based or manual designs). “Continuous” means bottles or jars pass continuously along a conveyor under the sealing head — no start-stop cycle, no handheld wand. This is the production-grade format for inline packaging lines.
What is the maximum sealing diameter and speed?
The wide head covers Φ30–150 mm. Belt speed ranges from 5 to 18 m/min, translating to roughly 80 containers/min on 150 mm wide-mouth jars up to 250–300 containers/min on 30 mm small necks. Exact output depends on foil thickness, container material, and required seal strength.
Air-cooled or water-cooled — which should I order?
Air cooling (standard) suits most food, cosmetic, and chemical lines running 1–2 shifts per day. If you run 24/7 production, seal large-diameter (100mm+) jars continuously, or operate in a hot ambient environment, the water-cooled configuration dissipates heat more efficiently and protects the generator from thermal stress.
Can it seal buckets and pails, not just bottles?
Yes — the 30–150 mm head covers jugs, wide-mouth jars, and small pails up to 150 mm mouth diameter. For larger pails and drums (over 150 mm), we offer dedicated large-head or custom sealers. Send us your container dimensions and we will confirm compatibility.
What is the warranty, lead time, and integration support?
12-month warranty on the generator, control system, and sealing head, plus lifetime technical support. Standard units ship in 15–25 days; water-cooled or stainless wash-down configurations take 25–35 days. We provide line layout drawings and interface confirmation before shipment. Spare parts worldwide within 48 hours.
Why Buy From SUNAURA Machinery
48,000㎡ Own Factory
In-house manufacturing in Qingdao, China — no middlemen, no trader markup.
CE Certified
All machines meet European safety standards with full documentation.
ISO 9001:2015
Quality management system certified across the entire production process.
SGS Audited Factory
Third-party audited manufacturing facility with 20+ national patents.
12-Month Warranty
Full warranty covering parts and labor from the date of shipment.
Lifetime Support
Technical guidance via email, WhatsApp, and remote video for the machine’s life.
Spare Parts in 48h
Genuine parts shipped worldwide via DHL/FedEx within 48 hours.
100+ Countries Served
Trusted by packaging lines across food, pharma, cosmetics, and chemicals.
Get a Factory-Direct Quote in 24 Hours
Tell us your container range, cap sizes, and line speed — our engineers reply with a model recommendation, FOB price, and lead time within one business day. Every machine is built in our 48,000㎡ Qingdao factory, CE & ISO 9001 certified.
Email [email protected]Related Induction Sealers
Browse the full range on the induction sealing machines landing page. Also explore our carton sealers and liquid filling machines for complete packaging lines.