
Liquid packaging machines are categorized by lane count: single-lane (1-lane), double-lane (double-lane), and multi-lane (multi-lane, 4-20 lanes). Many procurement managers face confusion when comparing these three options: which one is right for your factory?
This article compares them across five dimensions: speed, accuracy, price, footprint, and payback period -- to help you make a rational decision.
| Model | Packaging Speed | Daily Capacity (10 hours) |
|---|---|---|
| Single-Lane SY-L180 | 20-35 bags/min | 1,200-2,100 bags |
| Single-Lane SY-L240 | 35-50 bags/min | 2,100-3,000 bags |
| Double-Lane SY-LN400 | 40-70 bags/min | 2,400-4,200 bags |
| Multi-Lane SY-LNL400 | 80-120 bags/min | 4,800-7,200 bags |
| Multi-Lane SY-LNL800 | 100-150 bags/min | 6,000-9,000 bags |
Key Conclusion: More lanes does not always mean better -- choosing the right capacity match is what matters.
Daily capacity need <= 2,000 bags -> Single-Lane SY-L180 Daily capacity need 2,000-5,000 bags -> Single-Lane SY-L240 or Double-Lane Daily capacity need 5,000-10,000 bags -> Multi-Lane (4-20 lanes)
This is a common misconception: that multi-lane machines sacrifice accuracy for speed.
In fact, ZSYAN's piston metering system uses the same core technology across single-lane, double-lane, and multi-lane models -- servo-controlled piston stroke with real-time feedback adjustment. Accuracy performance is as follows:
| Model | Accuracy |
|---|---|
| Single-Lane SY-L180 | +/-1% |
| Single-Lane SY-L240 | +/-1% |
| Double-Lane SY-LN400 | +/-1% (dual-lane synchronized) |
| Multi-Lane SY-LNL400 | +/-1% (multi-lane synchronized) |
| Multi-Lane SY-LNL800 | +/-1% (multi-lane synchronized) |
Accuracy is independent of lane count -- it depends on the metering system and maintenance quality.
| Model | Equipment Price (RMB) | Cost per Bag per Day |
|---|---|---|
| Single-Lane SY-L180 | \u00a545,000-55,000 | \u00a525-32/bag-day |
| Single-Lane SY-L240 | \u00a560,000-75,000 | \u00a522-28/bag-day |
| Double-Lane SY-LN400 | \u00a595,000-120,000 | \u00a528-35/bag-day |
| Multi-Lane SY-LNL400 | \u00a5160,000-200,000 | \u00a530-38/bag-day |
| Multi-Lane SY-LNL800 | \u00a5220,000-280,000 | \u00a532-40/bag-day |
Key Conclusion: Single-lane machines have the lowest per-unit-capacity cost and the best value. Multi-lane machines suit high-capacity needs but carry slightly higher unit costs.
| Model | Footprint |
|---|---|
| Single-Lane SY-L180/240 | ~2 sqm |
| Double-Lane SY-LN400 | ~3.5 sqm |
| Multi-Lane SY-LNL400 | ~5 sqm |
| Multi-Lane SY-LNL800 | ~7 sqm |
If factory space is limited, single-lane is the more practical choice.
Assuming labor savings of 4 operators per month at \u00a54,000/person:
| Model | Equipment Investment | Monthly Labor Savings | Annual Net Benefit | Payback Period |
|---|---|---|---|---|
| Single-Lane SY-L180 | \u00a550,000 | \u00a516,000 | \u00a5182,000 | ~4 months |
| Single-Lane SY-L240 | \u00a568,000 | \u00a516,000 | \u00a5164,000 | ~5 months |
| Double-Lane SY-LN400 | \u00a5110,000 | \u00a520,000 | \u00a5230,000 | ~6 months |
| Multi-Lane SY-LNL400 | \u00a5180,000 | \u00a524,000 | \u00a5288,000 | ~7 months |
Key Conclusion: Single-lane machines pay back fastest. Multi-lane machines take slightly longer but deliver higher absolute returns.
Daily capacity need <= 2,000 bags -> Single-Lane SY-L180 Daily capacity need 2,000-5,000 bags -> Single-Lane SY-L240 (best value) Daily capacity need 5,000-10,000 bags -> Double-Lane or 4-lane SY-LNL series
Case 1: Shandong Seasoning Factory
Need: 3,000 bags/day of sauce
Choice: Single-Lane SY-L240
Result: Daily capacity 3,500 bags, operators reduced from 6 to 1, payback 8 months
Case 2: Sichuan Honey Processing Plant
Need: 8,000 bags/day of honey
Choice: 4-lane SY-LNL400
Result: Daily capacity 10,000 bags, precision +/-1%, payback 10 months
| Dimension | Single-Lane | Double-Lane | Multi-Lane |
|---|---|---|---|
| Suitable Capacity | Small | Medium | Large |
| Unit Cost | Medium | Lowest | Medium-High |
| Payback Period | Fastest | Fast | Medium |
| Footprint | Small | Medium | Large |
| Recommendation | **5 stars | **5 stars | 4 stars |
One-sentence advice: For factories with daily capacity needs of 2,000-5,000 bags, the single-lane liquid packaging machine is the most cost-effective choice.