When you need a reliable, mid-speed can filling and sealing solution for beverages, the 18-4 can filling and sealing machine delivers a verified output of 6000 to 8000 cans per hour. This model combines 18 filling valves and 4 sealing heads in a compact rotary design, making it a popular choice for small to medium-sized breweries, soft drink producers, and contract packers.
In this article, we provide real technical data, performance benchmarks, and practical advice on integrating this machine into your canning line. All figures are based on actual factory test reports and industry standards.
What is the 18-4 Can Filling and Sealing Machine?
The 18-4 can filling and sealing machine (also called 18-4 filler seamer combo) is a rotary monobloc system that performs two critical operations: liquid filling (with options for isobaric, micro-negative pressure, or gravity filling) and double seaming of easy-open lids onto aluminum or steel cans.
- 18 filling valves → high-speed, accurate volumetric or flow-meter filling
- 4 sealing stations → first and second operation seaming rolls for hermetic closure
This configuration balances filling speed with seaming reliability, achieving 6000–8000 cans per hour (CPH) without compromising fill height or seam integrity.
Key Technical Specifications (Real Data)
All parameters below are sourced from factory acceptance tests (FAT) of standard 18-4 models used in beverage production.
| Parameter | Value |
|---|---|
| Capacity | 6000 – 8000 cans/hour (adjustable) |
| Filling valves | 18 |
| Seaming heads | 4 |
| Can diameter range | Φ52 mm – Φ73 mm (e.g., 202, 206, 209 lids) |
| Can height range | 80 mm – 160 mm |
| Filling methods | Optional: isobaric (for carbonated drinks), micro-negative pressure (for sensitive liquids), or gravity (for non-carbonated) |
| Filling accuracy | ±2 ml (at 330 ml fill volume) |
| Seam quality | Meets or exceeds Brix and vacuum standards (leak rate <0.1%) |
| Power supply | 5.5 kW – 7.5 kW (depending on optional CIP) |
| Compressed air | 0.6 m³/min @ 0.6 MPa |
| Material | Food-grade 304 stainless steel (product contact parts: 316L) |
| CIP compatibility | Yes (integrated spray balls and return lines) |
These values are consistent with actual machines supplied to beverage plants in North America, Europe, and Southeast Asia.
How the 18-4 Machine Achieves 6000–8000 CPH
The 6000-8000 cans per hour throughput is not a peak theoretical number – it is the sustainable operating range for standard 330 ml or 500 ml cans. Here is how the machine maintains this speed:
- Rotary indexer: Continuous rotation with starwheel timing eliminates dead time.
- Short product path: Filling valves are directly above the can lift table, reducing fill time.
- Simultaneous seaming: While 4 cans are being seamed, another 18 cans are filling.
- Servo-driven can lift: Smooth acceleration/deceleration avoids splashing and foam.
For example, at 7000 CPH, the machine cycles one can every ~0.51 seconds – well within the mechanical limits of standard seaming rolls and filling nozzles.
6000-8000 cph capacity of 18-4 can filling machine on Youtube
Main Advantages for Your Production Line
1. Low Oxygen Pick-up (for Beer & Carbonated Drinks)
The isobaric or micro-negative pressure filling systems use CO₂ or N₂ purging, keeping dissolved oxygen below 50 ppb – essential for craft beer, energy drinks, and any oxygen-sensitive products. Isobaric filling maintains pressure balance for carbonated beverages, while micro-negative pressure reduces foam and protects liquid flavors.
2. Easy Changeover for Different Can Sizes
Switch between 330 ml, 440 ml, and 500 ml cans in 30–40 minutes without special tools. The 18-4 model includes quick-release seaming rolls and adjustable can height guides.
3. Energy-Efficient Seaming
The four seaming heads use direct-drive servo motors instead of pneumatic clutches, reducing compressed air consumption by up to 30% compared to older 4-head seamers.
4. Integrated CIP (Clean-in-Place)
All product-contact surfaces can be cleaned without disassembly. CIP cycles typically take 25 minutes – validated by CIP validation guide for can fillers.
Ideal Applications (Real-World Use Cases)
With three optional filling modes, the 18-4 can filling and sealing machine is widely used in:
- Craft breweries (batch sizes 10–100 hl) → isobaric filling, 6000–8000 CPH matches canning runs of 2–4 hours.
- Energy drink producers → micro-negative pressure filling reduces foam, low oxygen ensures consistent caffeine levels.
- Carbonated soft drink (CSD) lines → isobaric filling retains CO₂ volume (>2.5 volumes).
- Water and iced tea canning → gravity filling mode with optional sterile filtration.
One customer in Texas runs their 18-4 machine 6 days a week at 7500 CPH, producing over 1.2 million cans per month of sparkling water.
Optional Upgrades to Enhance Performance
To maximize ROI, consider these field-proven add-ons:
| Upgrade | Benefit |
|---|---|
| Empty can rinser | Reduces particle contamination (air or water rinse) |
| Lid sterilizer (UV or steam) | Extends shelf life for low-acid beverages |
| Automatic lid feeder | Reduces manual loading, improves safety |
| Fill height inspection system | Real-time reject for under/over fills |
| Seam monitoring camera | Detects false seams or droop instantly |
Comparison: 18-4 vs. 12-4 and 24-6 Models
| Model | Filling heads | Seaming heads | Typical speed | Best for |
|---|---|---|---|---|
| 12-4 | 12 | 4 | 4000–5000 CPH | Nano breweries, R&D lines |
| 18-4 | 18 | 4 | 6000–8000 CPH | Regional breweries, co-packers |
| 24-6 | 24 | 6 | 10000–15000 CPH | Large industrial canneries |
The 18-4 offers the best balance of cost and speed for producers moving from manual or semi-auto lines.
Conclusion
The 18-4 can filling and sealing machine with a real-world capacity of 6000–8000 cans per hour is a proven workhorse for mid-scale beverage producers. It combines precise filling (with isobaric, micro-negative pressure, or gravity options), reliable seaming, low oxygen pick-up, and fast changeover – all in a compact monobloc design.
If you are upgrading from a manual filler or need to increase output without jumping to an expensive high-speed line, the 18-4 model delivers the best cost-per-can efficiency in its class.
📌 Ready to integrate this machine into your canning line?
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