ENIVO

Valve Bag Filling

Precise, Clean, and High-Efficiency Filling Solutions for Fine Powder and Granular Products

Valve bag filling systems are industrial packaging solutions used to fill products such as cement, gypsum, lime, construction chemicals, mineral powders, and similar materials into valve bags in the 10–50 kg range precisely, quickly, and reliably.

ENIVO approaches valve bag filling systems not merely as a filling machine, but as a holistic packaging line evaluated together with product characteristics, bag type, target capacity, automation level, bag application, closing, handling, and end-of-line integration.

Valve filling systems can be engineered with a turbine-type or air-type filling principle according to product structure and capacity needs, and with linear or rotary machine configurations according to line layout. With a stainless steel material option on product-contact surfaces, suitable configurations can also be created for filling special powder products requiring food, chemical, and hygiene sensitivity.

Contents

Turbine Filling
Air Filling
Bag Application Systems
Optional Ultrasonic Valve Sealing

Turbine Filling

A High-Efficiency and Stable Filling Principle for Fine Powder Products

Turbine Filling

Turbine-type filling is a filling principle preferred for achieving high filling efficiency and a stable bag weight, especially in fine powder products. This structure, which ensures the product is directed into the bag in a controlled and continuous manner, delivers strong performance in fine powder applications.

Operating Principle

The turbine mechanism transfers the product from the filling spout into the bag in a controlled and continuous flow. Thanks to this structure, the filling time is optimized and high consistency in bag weight is achieved.

Technical Specifications

Filling principleTurbine-type mechanical filling
Filling rangeTypically 10–50 kg valve bags
Suitable product typeFine, free-flowing, powder-character products
Bag typeKraft, PE, PP, or laminated valve bags
Machine configurationCan be implemented as linear or rotary type
Material optionCarbon steel or stainless steel on product-contact surfaces
AutomationCan be integrated into manual, semi-automatic, or fully automatic lines

Application Areas

Gypsum, plaster, cement, and lime products

Calcite, calcium carbonate, and mineral powders

Fillers and fine granular products

Chemical powders and granular products

Flour, starch, sugar, salt, and similar raw materials for the food industry

Air Filling

A Balanced and Clean Filling Principle for Products with Variable Granulometry

Air Filling

Air-type filling is a filling principle in which the product is transferred into the bag in a controlled manner with the assistance of air. It provides advantages especially for products with a variable particle size distribution, products containing components of different fineness and density, or products where a more homogeneous distribution inside the bag is targeted. This filling principle helps the product spread more evenly inside the bag, the bag form to take shape more controllably, and dust emission during filling to be reduced. Air-assisted filling systems are a strong alternative for construction chemicals with mixed granulometry, mineral-based products, and powder mixtures with variable flow behavior.

Operating Principle

During filling, the product is fluidized with a controlled airflow and transferred from the valve opening into the bag. The air penetrates between the product particles, reducing the material's flow resistance and enabling the product to advance in a more orderly, uninterrupted, and controlled manner. Throughout filling, the air volume, air pressure, and product feeding behavior are managed together. This achieves more balanced filling performance, especially for products with variable granulometry, those containing both fine and coarse fractions, or those with difficult flow characteristics.

Technical Specifications

Filling principleAir-assisted filling
Filling rangeTypically 10–50 kg valve bags
Suitable product typeProducts with variable granulometry, mixed powders, or fine granules
Bag typeKraft, PE, PP, or laminated valve bags
Machine configurationCan be implemented as linear or rotary type
Material optionCarbon steel or stainless steel on product-contact surfaces
AutomationCan be integrated into manual, semi-automatic, or fully automatic lines

Application Areas

Construction chemical products

Gypsum, plaster, cement, and lime products

Calcite, calcium carbonate, and mineral powders

Granular and coarse-grained products

Abrasive powder products

Chemical powders and granular products

Flour, starch, sugar, salt, and similar raw materials for the food industry

Bag Application Systems

Automatic Bag Placement Solutions for Capacity and Line Continuity

Bag Application Systems

Bag application systems are one of the core components that directly affect capacity, operational safety, and line continuity on valve bag filling lines. ENIVO offers suitable bag application solutions for linear and rotary valve filling machines according to product structure, bag type, target capacity, and automation level. On linear filling machines, bag application can be supported with manual, semi-automatic, or automatic solutions. On rotary high-capacity filling lines, fully automatic bag application systems provide a significant advantage in terms of line continuity and capacity management. Manual, semi-automatic, or fully automatic systems ensure the empty bag is placed onto the filling spout correctly and safely, creating a cleaner, more stable, and more efficient packaging flow.

Operating Principle

Bag application systems mechanically place empty valve bags onto the filling spout, ensuring the filling process continues without interruption and safely.

Process Advantages

Suitable Machine Type: Linear and rotary valve filling machines
Automation Level: Manual, semi-automatic, or fully automatic
Capacity: Configurable according to line structure and machine type
Bag Feeding Structure: Magazine, cassette, bundle, or suitable bag feeding options
Suitable Bag Type: Kraft, PP, PE, or laminated valve bags
Integration: Can operate integrated with the filling machine, conveyor, and line automation

Design and System Features

Application Areas

Configured according to machine structure, bag type, target capacity, and automation level

Linear valve filling lines

Manual, semi-automatic, or fully automatic solutions

Rotary valve filling lines

Directly affects capacity, operational safety, and line continuity

High-capacity packaging plants

Provides a cleaner and more stable packaging flow

Continuous production lines

Can operate integrated with linear and rotary valve filling machines

ENIVO regards bag application systems as an integral part of the filling line and configures the most suitable solution according to line capacity, bag type, machine type, and automation level.

Optional Ultrasonic Valve Sealing

Ultrasonic Sealing for Post-Filling Bag Tightness and Product Protection

Optional Ultrasonic Valve Sealing

On valve bag filling systems, an ultrasonic valve sealing system can be applied optionally to improve bag tightness and reduce product loss. This system closes the valve opening quickly and cleanly after filling, limiting dust emission and strengthening package protection. It can be integrated into linear or rotary valve filling machines.

Operating Principle

Using ultrasonic vibration energy, the valve bag opening is closed quickly and cleanly after filling. This method provides reliable sealing without requiring any additional material.

Process Advantages

Sealing Type: Ultrasonic valve opening sealing
Suitable Machine Type: Linear or rotary valve filling machines
Suitable Bag Type: Valve bags suitable for ultrasonic sealing
Purpose: Tightness, product loss reduction, dust control
Integration: Can be applied at the filling machine outlet or on the line

Design and System Features

Application Areas

Improves bag tightness

Cement packaging lines

Helps reduce product loss after filling

Construction chemicals filling lines

Limits dust emission and strengthens package protection

Mineral powder packaging

Can be integrated into linear or rotary valve filling machines

Applications where dust emission must be minimized

ENIVO offers the ultrasonic valve sealing system as an optional solution especially in applications where product protection and dust control are critical.