
Foshan, Guangdong — Mr. Chen, owner of a food factory specializing in export seasonings, faced a problem familiar to many in the industry.
His products are liquid seasonings — sauces, honey, cooking wine, and oral liquids — exported mainly to Southeast Asia and the Middle East. Every year, from the period after Spring Festival to Mid-Autumn Festival, order volume spikes to 2-3 times normal levels.
"We could only accept a portion of orders during peak season," Mr. Chen recalled. "Because manual filling was too slow. We were using a semi-automatic filler with a daily capacity of only 800 bags. Customers placed orders starting at 3,000 bags — we simply couldn't keep up."
Worse still, manual filling produced inconsistent results. Some bags were overfilled, some underfilled, leading to a high complaint rate. And labor costs during peak season meant hiring 5-6 temporary workers — expensive and hard to train.
The efficiency bottleneck was quietly eating into their margins and client relationships.
Last autumn, Mr. Chen attended a food processing exhibition and took the opportunity to visit a fellow Guangdong-based factory's packaging workshop.
"I was stunned," Mr. Chen said. "Same-scale factory, but their daily output was four times ours — and their packaging line used only one person."
The machine was a single-lane liquid packaging machine — featuring a piston metering system with ±1% precision and a speed of 20-50 bags/min.
"I always thought I needed a multi-lane machine to double capacity," Mr. Chen said. "I didn't realize a single-lane machine with the right configuration could handle high-volume production."
Back at the factory, Mr. Chen carefully compared several options:
| Option | Equipment Investment | Daily Capacity | Operators | Payback Period |
|---|---|---|---|---|
| Continue with manual filling | ¥0 | 800 bags | 6 people | — |
| Buy 2 semi-automatic fillers | ¥45,000 | 1,600 bags | 4 people | ~14 months |
| Buy 1 SY-L240 single-lane liquid packaging machine | ¥65,000 | 3,500 bags | 1 person | ~8 months |
| Buy multi-lane liquid packaging machine | ¥180,000 | 8,000 bags | 2 people | ~18 months |
Key Insight: The right model — not the most lanes — delivers the best value.
Mr. Chen's daily need was 3,000-4,000 bags. One SY-L240 single-lane machine running at 35-50 bags/min for 10 hours covers this perfectly. No need for a multi-lane machine or complex configurations — choosing the right model saved money.
Mr. Chen sent samples to ZSYAN: sauces, honey, cooking wine, and oral liquids.
Three days later, the technical team sent back test results:
"The piston metering system is fully compatible with your materials. Recommended configuration: 1x SY-L240 single-lane machine + pre-feed hopper + automatic palletizing conveyor. Expected daily capacity: 3,500 bags (up from 800), precision ±1%, operators reduced from 6 to 1."
The equipment shipped in early August and arrived in Foshan within 10 days. ZSYAN's technical team guided installation and commissioning remotely. Trial run completed on day two.
On the first day of mass production, Mr. Chen watched the machine auto-fill, seal, and code bags. His comment: "I wish I had bought this three years ago."
| Metric | Before | After (SY-L240) | Change |
|---|---|---|---|
| Daily Capacity | 800 bags | 3,500 bags | +337% |
| Operators | 6 people | 1 person | Saved 5 |
| Monthly Savings | — | ≈¥25,000 | — |
| Payback Period | — | 8 months | — |
What surprised Mr. Chen most was the precision. "Before, manual filling had errors often exceeding ±5%. Now with piston metering, ±1% accuracy stays consistent from morning to night."
Calculate your daily capacity need before choosing a model — don't blindly chase high lane counts. The right capacity match is the most cost-effective.
Always send samples for testing — viscosity varies greatly between liquids. Only real testing determines the optimal configuration.
Choose a brand with global service capability — liquid packaging machines are complex. Remote diagnostics and spare parts supply are critical.
"If your daily capacity need is between 2,000-5,000 bags, a single-lane liquid packaging machine isn't optional — it's essential."