Petroleum Jelly Sachet Packing Machine (5-Lane)

Material Compatibility & Processing Requirements

This machine is specifically designed for semi-solid and high-viscosity materials such as petroleum jelly.

Unlike standard liquids, these products:

• Do not flow at room temperature

• Require controlled heating to become pumpable

• Are sensitive to temperature fluctuations

• Tend to adhere to pipelines and sealing areas

To ensure stable production, the system integrates heating, stirring, and controlled feeding, allowing the material to remain in a consistent and flowable state throughout the entire process.

Heating and Mixing System

A heated mixing hopper is integrated into the system to maintain product stability during operation.

Key functions include:

• Continuous temperature control to prevent solidification

• Stirring system to maintain uniform viscosity

• Stable material supply to all filling lanes

This design ensures that petroleum jelly can be processed continuously without interruption or blockage.

Multi-Lane Filling Stability

For semi-solid products, multi-lane operation requires precise control.

The machine adopts:

• Centralized feeding with controlled distribution

• Short material flow path to reduce resistance

• Balanced pressure design across all lanes

This ensures consistent filling performance across all 5 lanes, avoiding uneven weight or flow issues.

Filling System

The machine uses a piston pump filling system, which is ideal for viscous and semi-solid materials.

Advantages include:

• Stable and repeatable dosing

• Suitable for thick and adhesive products

• Filling accuracy within ±3–5%

This system ensures precise 5g dosing for each sachet.

Sealing Performance

Petroleum jelly products require special attention to sealing quality.

The machine is equipped with:

• 5 mm sealing width

• Optimized sealing temperature control

• Stable pressure sealing system

This prevents leakage, ensures strong sealing strength, and reduces contamination at the sealing edges.

Sachet Design

The final packaging format is a four-side seal flat sachet, which is widely used for:

• Medical ointments

• Cosmetic creams

• Single-use skin care products

The machine also supports:

• Easy-tear notch for convenient use

• Clean cutting for consistent appearance

Coding System

A coding system is integrated for product traceability.

It supports:

• Expiry date (EXP)

• Batch number (LOT)

This is essential for pharmaceutical and cosmetic compliance requirements.

Output & Integration

The system includes a counting conveyor, allowing:

• Adjustable counting per batch

• Smooth transfer to downstream packaging

• Easy integration with cartoning systems

This enables a complete automated packaging line.

Production Performance

Under stable operating conditions, the machine delivers:

• Speed: 30–40 bags per minute

• Filling accuracy: ±3%

• Stable continuous operation

• Low rejection rate

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Application Range

This solution is suitable for:

• Petroleum jelly (Vaseline)

• Cosmetic creams

• Medical ointments

• Gel-based skin care products

• Semi-solid personal care products

Summary

This machine is engineered to handle semi-solid materials that standard liquid packing machines cannot process effectively.

By combining:

• Heating

• Mixing

• Controlled distribution

• Precision filling

it ensures stable, efficient, and hygienic packaging for high-value products.

FAQ

1. Can this machine handle petroleum jelly without dilution?

Yes.
The machine is equipped with a heated mixing hopper, allowing petroleum jelly to be processed directly without dilution. The heating system keeps the material in a flowable state, ensuring stable filling.

2. How does the machine prevent clogging during production?

Clogging is prevented through a combination of:

• Continuous heating to maintain viscosity

• Stirring system to avoid solidification

• Short and optimized material flow path

This ensures smooth and uninterrupted production, even for high-viscosity products.

3. Is the filling accuracy stable for semi-solid materials?

Yes.
The piston pump system provides a filling accuracy of ±3%, which is suitable for petroleum jelly and similar semi-solid products.

4. Can all 5 lanes maintain consistent filling?

Yes.
The machine uses a balanced distribution system, ensuring each lane receives a consistent material supply. This avoids uneven filling or weight variation between lanes.

5. What type of packaging does this machine support?

This machine is designed for:

• Four-side seal sachets

• Flat sachet format

• With optional easy-tear notch

It is widely used for single-use cosmetic and pharmaceutical products.

6. Can the machine print expiry date and batch number?

Yes.
The machine includes a coding system (ribbon type), which can print:

• Expiry date (EXP)

• Batch number (LOT)

This meets standard compliance requirements for medical and cosmetic products.

7. Is the machine ready for automatic cartoning?

Yes.
The machine is equipped with a counting conveyor system, which allows:

• Adjustable counting per group

• Smooth transfer to downstream packaging

• Easy integration with cartoning machines

8. What kind of materials can be used for packaging film?

The machine supports laminated film with a thickness of:

• 7–9 μm

This ensures strong sealing and good barrier performance.

9. How is sealing quality ensured for oily products?

The machine uses:

• 5 mm sealing width

• Stable temperature control

• Optimized sealing pressure

This prevents leakage and ensures reliable sealing even for oily or greasy products like petroleum jelly.

10. Can the machine be customized for different sachet sizes?

Yes.
The machine supports:

• Bag width: 42 mm

• Bag length: 80–160 mm (adjustable)

Customization is available based on product and packaging requirements.

11. What types of products can this machine handle besides petroleum jelly?

This solution is also suitable for:

• Cosmetic creams

• Medical ointments

• Gel-based products

• Semi-solid personal care products