How to Solve Filling Leakage Issues in Spring Roll Machine?

Filling leakage is one of the most common production problems faced by food factories using an mesin lumpia otomatis. Whether you operate a small commercial kitchen or a large‐scale industrial production line, filling dripping, overfilling, side leakage, or wrapper breakage can cause serious issues: product waste, poor appearance, oil contamination, and reduced efficiency.

This is a comprehensive, step-by-step solution to help you diagnose and fix filling leakage problems in mesin pembuat lumpia, understand the root causes, and apply preventive maintenance. As a spring roll machine manufacturer, we summarize real factory cases to ensure the solutions are practical, effective, and easy to apply.

1. Understanding the Types of Filling Leakage in Spring Roll Machines

Before solving the issue, you must identify which leakage type is happening. Different failures come from different mechanical or operational problems.

1.1 Leakage from the Feeding Nozzle

• Filling drips before wrapping
• Filling continues after wrapper is sealed
• Nozzle does not close properly
  Possible equipment involved: filling pump, pneumatic valve, rotary valve.

1.2 Leakage from the Wrapper Side

• Filling squeezes out before rolling
• Wrappers cannot seal tightly
• Wrappers crack during rolling

1.3 Leakage During Frying or Freezing

• Filling escapes after the product is already shaped
• Signs of incomplete sealing or watery filling

By identifying the leakage type, troubleshooting becomes much easier.

2. Main Causes of Filling Leakage in Spring Roll Machines

2.1 Over-Wet or Too Soft Filling

Spring roll fillings vary (sayuran, daging, mie gelas), Tetapi high moisture content will always cause leakage.

Signs

• Filling seems watery
• Liquid pools in hopper
• Wrappers tear easily during rolling

Root causes

• Vegetables not drained
• Meat mixture not emulsified
• Incorrect binder ratio

2.2 Uneven or Excessive Filling Quantity

Commercial spring roll machines rely on precise filling.
If the filling pump is not calibrated, leakage becomes inevitable.

Causes include:

• Incorrect filling volume parameter
• Damaged filling pump seals
• Air pressure imbalance in pneumatic pumps

2.3 Wrapper Quality Issues

Even with perfect filling, low-quality wrappers cause leaking.

Typical problems

• Wrapper too thin
• Wrapper too dry/stiff
• Dough formula incorrect
• Wrapper not cooked evenly in the mesin pembungkus lumpia

2.4 Mechanical Problems Inside the Machine

Machines commonly causing leakage include:

• Filling pump cylinder
• Pneumatic solenoid valve
• Rotary valve
• Scraper or pressing roller
• Rolling and folding mechanism

Any small misalignment may break the wrapper or cause overflow.

2.5 Incorrect Machine Settings

Wrong parameters often lead to leaking:

• Filling temperature too high
• Wrapping speed too fast
• Pressure settings incorrect
• Nozzle position misaligned
• Roll tightness too loose or too tight

2.6 Poor Daily Maintenance

Common errors:

• Nozzle not cleaned properly
• Residue blocking the filling outlet
• Wear of sealing rubber
• Lack of lubrication

3. Step-By-Step Solutions to Fix Filling Leakage Issues

Below are detailed solutions based on real factory troubleshooting.

3.1 Fix the Filling Formula First (Most Important)

3.1.1 Reduce Moisture

• Drain vegetables after cutting
• Blanch vegetables and squeeze water
• Add oil to lock moisture
• Increase starch/binder for meat fillings

Recommended moisture level:
≤ 15% for vegetable spring rolls
≤ 20% for meat + vegetable mix

3.1.2 Add Natural Binders

Common food-grade binders:

• Cornstarch
• Potato starch
• Tepung tapioka
• Flour slurry
• Soy protein

A small increase in starch can greatly improve filling stability.

3.1.3 Control Filling Temperature

If too hot → it becomes watery
If too cold → turns hard and clogs nozzle

Best filling temperature: 10°C – 20°C for machine filling.

3.2 Adjust the Filling Quantity and Pressure

3.2.1 Calibrate Filling Pump

• Reduce filling volume by 5–10%
• Adjust the piston stroke
• Set consistent air pressure (0.4–0.6 MPa)

3.2.2 Replace Worn Seals

Overused seals cause inconsistent pressure → leakage.

Check:

• O-rings
• Piston seals
• Pump rubber gaskets

Replace every 3–6 bulan for heavy production.

3.3 Improve Wrapper Quality

3.3.1 Adjust Wrapper Thickness

Standard wrapper thickness:
0.4 mm – 0.6 mm

Too thin → tearing
Too thick → cannot roll tight

3.3.2 Fix Wrapper Dryness

If wrapper dries too fast:

• Add water sprayer
• Reduce conveyor temperature
• Adjust batter ratio

3.3.3 Enhance Batter Ratio (For wrapper machines)

Basic batter formula:

• Tepung
• Air
• Garam
• Minyak

If cracking occurs：Increase the starch or protein content by 1–3% to enhance toughness.

3.4 Fix Mechanical Issues in the Spring Roll Machine

3.4.1 Check Nozzle Alignment

Misaligned nozzles cause filling to drop outside the center.

Adjust:

• Nozzle angle
• Nozzle height
• Distance from wrapper feeding point

3.4.2 Clean & Lubricate the Filling System

Steps:

1. Remove filling pump
2. Clean internal chamber
3. Oil lubrication points
4. Menggunakan 100% food-grade oil

3.4.3 Adjust Rolling & Folding Mechanism

If roll is loose → filling leaks
If roll is tight → wrapper breaks

Mengatur:

• Rolling pressure
• Folding arm speed
• Crimp tightness

3.5 Optimize Machine Parameters

Recommended baseline for industrial spring roll machines:

Fine-tune according to your product size.

4. Preventive Maintenance to Avoid Future Leakage

4.1 Daily Maintenance Checklist

• Clean filling pump before shutdown
• Rinse nozzle with hot water
• Check wrapper tearing rate
• Check air pressure and oil level
• Inspect conveyor speed

4.2 Pemeliharaan Mingguan

• Inspect O-rings
• Test pressure pump
• Clean rotary valve
• Tighten screws on folding system

4.3 Pemeliharaan Bulanan

• Replace seals
• Check cylinder smoothness
• Adjust nozzle mounting plate
• Test machine calibration

These steps dramatically reduce unexpected filling leakage.

5. When to Replace Parts? (Very Important)

Replace the following when:

• Filling pump shows pressure loss
• Rotary valve does not rotate smoothly
• Nozzle clogs repeatedly
• Wrapper cracking rate > 5%
• Machine vibration increases

Using worn parts drastically increases leakage.

6. Pertanyaan yang sering diajukan (FAQ)

Q1: Why do spring rolls leak during frying?

Because wrapper is not sealed properly or filling has too much moisture.

Q2: Why does filling fall before wrapper arrives?

The nozzle is leaking—likely due to worn seals or pressure setting too high.

Q3: Why does vegetable filling leak more?

Vegetables contain high fiber but release water when heated.

Q4: Can wrong machine speed cause leakage?

Ya. If wrapping speed is too fast, the roll does not seal completely.

7. Professional Advice From a Spring Roll Machine Manufacturer

If leakage persists after following the above steps, the issue may require professional machine calibration or part replacement.

DT Food Machine is a reliable spring roll machine manufacturer, providing:

• Automatic spring roll production lines
• Mesin pembungkus lumping
• Filling pump systems
• Bergulir & folding equipment
• Customization for different fillings
• On-site installation & technician guidance

Our machines are widely used in Southeast Asia, Eropa, Timur Tengah, dan Amerika Selatan.

We can help you:

• Diagnose leakage issues
• Improve filling stability
• Adjust wrapping mechanism
• Customize filling systems for vegetable/meat/glass noodle fillings

Hubungi kami

Solving filling leakage in spring roll machines requires a combination of:

• Correct filling formula
• Proper machine settings
• Wrapper quality control
• Perawatan rutin

By applying the step-by-step methods above, factories can significantly reduce product waste, improve production efficiency, and keep stable quality for large-scale orders.

If you want expert support or need an upgraded mesin lumpia otomatis, feel free to reach out — our technical team will help you solve leakage issues quickly and professionally.