Piston Filling Machine
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MeltVista Piston Filling Machine is an automated filling solution specially designed for liquids, semi-liquids, and pastes. Featuring a piston injection system and a three-way check valve, it offers high filling accuracy, easy operation, simple maintenance, and a no-drip performance.
The machine can fill approximately 50 bottles per minute with volumes ranging from 10ml to 500ml, and supports an adjustable filling range from 0.1ml to 5000ml to meet diverse production needs.
It is widely applicable in industries such as cosmetics, food, oil, pharmaceuticals, and agrochemicals. With a filling error margin within ±0.5%, it is ideal for products requiring precise dosing, such as medications and high-end cosmetics.
Contact us today to learn more about our filling machines and get a customized solution for your production line!
Application of MeltVista Piston Filling Machine in Shampoo Production
Background
A personal care brand needed to upgrade its shampoo filling line to meet the demands of multi-spec packaging and high-precision filling. The brand produces various shampoo formulations with different viscosities, including transparent gels, creamy emulsions, and exfoliating formulas containing particles. The filling equipment had to deliver high precision, no-drip performance, and quick changeover capabilities to accommodate different package sizes (e.g., 250ml family size and 50ml travel size).
Solution
The brand implemented the MeltVista Piston Filling Machine with the following configuration:
Filling range: 50ml–500ml (expandable to 0.1ml–5000ml)
Accuracy: ±0.5% margin of error to ensure consistent fill volume and reduce material waste
Speed: 50 bottles/min (single head); scalable to 150 bottles/min with a multi-piston setup
Versatility: Triple check-valve system allows smooth handling of various viscosities, including thick conditioner blends
No-drip system: Special valve nozzle design prevents residue and contamination, minimizing product loss and bottle neck staining
Hygiene compliance: All contact parts are made of 316L stainless steel, GMP compliant, and support CIP (Clean-in-Place) for quick sanitation
Implementation Results
Efficiency Boost: Filling speed increased by 30% compared to previous equipment; changeover between package sizes takes only 5 minutes (by adjusting piston stroke or changing cylinders)
Cost Savings: Improved precision has reduced raw material waste by approximately 15% annually; the no-drip design cuts down cleaning time
Operational Flexibility: The same machine can fill multiple products (shampoo, conditioner, body wash), reducing overall equipment investment
Customer Feedback
“The MeltVista filling machine addressed our key production challenges, especially in reliably filling shampoos with suspended particles. The ±0.5% accuracy and easy-to-maintain design have helped us achieve a 99.2% yield rate.”
FAQ about Piston Filling Machine
A piston filling machine is a type of automated or semi-automated equipment used to fill containers (bottles, tubes, jars, etc.) with precise amounts of liquid, semi-liquid, or viscous products. It operates using a piston mechanism that draws a measured volume of product from a hopper or reservoir and dispenses it into containers with high accuracy.
How It Works:
- Product Intake: The piston retracts, creating suction that draws the product into a cylinder.
- Filling Phase: The piston moves forward, pushing the product out through a nozzle.
- Adjustable Volume: Stroke length controls fill volume for different container sizes.
Key Features:
- ±0.5% to ±1% accuracy
- Handles cosmetics, food, pharmaceuticals, chemicals
- Adjustable speed settings
- Sanitary stainless steel construction
1. Cosmetics & Personal Care
- Lotions & Creams
- Gels (hair gels, aloe vera)
- Serums & Oils
- Toothpaste & Ointments
2. Food & Beverage
- Sauces & Condiments
- Syrups & Honey
- Edible Oils
- Dairy Products
3. Pharmaceuticals & Medical
- Ointments & Creams
- Liquid Medicines
- Medical Gels
4. Chemicals & Industrial
- Lubricants & Greases
- Adhesives & Sealants
- Paints & Coatings
| Industry | Example Products | Benefits |
|---|---|---|
| Cosmetics | Lotions, shampoos | Hygienic, splash-free filling |
| Pharmaceuticals | Ointments, syrups | ±0.5% accuracy, GMP compliant |
| Food & Beverage | Sauces, honey | Handles thick/sticky foods |
| Chemicals | Lubricants, adhesives | Chemical-resistant materials |
Speed by Machine Type:
- Manual: 5-15 CPM (small batches)
- Semi-Auto: 10-30 CPM (single-head)
- Fully Auto (2-4 heads): 30-60 CPM
- Fully Auto (6-12+ heads): 80-150+ CPM
Factors Affecting Speed:
- Product viscosity (thicker = slower)
- Container size (larger = slower)
- Nozzle design
- Automation level
Thick Liquids (High Viscosity)
- Examples: Lotions, peanut butter, greases
- Advantages: No dripping, shear-free
- Adjustments: Larger nozzles, slow retraction
Thin Liquids (Low Viscosity)
- Examples: Serums, milk, suspensions
- Challenges: Dripping, foaming
- Solutions: Anti-drip nozzles, vacuum assist
Comparison
| Factor | Thick Liquids | Thin Liquids |
|---|---|---|
| Nozzle Size | Larger | Smaller |
| Fill Speed | Slower | Faster |
Production Line Integration
- Standalone: 10-30 CPM, manual loading
- Inline: 30-150+ CPM, fully automated
Typical Line Configuration
- Container feeding system
- Piston filling machine
- Capping/sealing station
- Labeling & coding
- Packaging
Key Benefits
- 80-150+ fills/minute (multi-head)
- ±0.5% accuracy at high speed
- Quick changeovers between sizes
- CIP cleaning options