What is a Flexible Automatic Packing Machine

A flexible automatic packing machine is an automated system designed to feed, identify, pick and pack different products with minimal mechanical changeover. Combining flexible feeding, machine vision and robotics, these systems are particularly effective for automatically bagging small parts and components with varying shapes, sizes and orientations.

Unlike conventional automatic bagging machines that rely on dedicated tooling for a specific product, a flexible system can adapt to different components through software, vision and programmable robotic handling.
 

Key Benefits at a Glance

• High-Mix, Low-Volume Production: Seamlessly switch between different components via software profiles without manual mechanical retooling.
• Reduced Labour Costs: Eliminates manual counting, loading, and heat sealing.
• Gentle Part Handling: Ideal for delicate, sensitive, or irregularly shaped industrial components.

These machines are perfect for industries that need versatility, like electronics, pharmaceuticals, plastic moulded parts or small mechanical parts.

How Does a Flexible Automatic Packing Machine Work?

A flexible automatic packing or bagging system brings several processes together within one automated solution. Components are presented by a feeding system, identified by machine vision, picked by a robot and transferred into a bag before sealing and discharge.

Here’s a step-by-step breakdown of the process:

1. Parts Feeding via Flexible Feeder & Vision Inspection

Component parts are loaded into a flexible feeder (such as the RNA FlexCube™), which uses controlled vibration to separate and distribute parts across a flat presentation surface.

An integrated machine vision system identifies each component and determines its position and orientation. The vision system sends this information to the robot, allowing suitable parts to be selected even when they are randomly presented on the feeder surface.
 

2. Robotic Pick and Place

A delta or 6-axis robot picks identified components using application-specific grippers or end-of-arm tooling. The robot transfers each component from the feeder to the automatic bagging machine, providing controlled handling throughout the process.
 

3. Automatic Bag Feeding and Opening

Pre-made bags or film rolls are fed into the machine. For pre-made bags, a mechanism (e.g., suction cups or grippers) picks and opens the bag mouth. For form-fill-seal (FFS) machines, flat plastic film is formed into a bag using heat sealing and shaping tools.
 
✅ In some systems, a bag opening mechanism uses support plates and cylinders to keep the bag open during filling, preventing material spillage.
 

4. Product Insertion (Bag Filling)

In the bag-filling process of an automatic flexible packing machine, a robotic arm or an alternative dispensing system carefully places the picked parts into an open bag, ensuring precise and efficient loading. For discrete parts, such as screws, medical devices, or similar items, the robotic placement is particularly critical to guarantee accurate and consistent filling.
 
✅ This automated approach:

Enhances speed and accuracy in bag filling.

Adapts to different product types via software adjustments.

Accommodates varying shapes, sizes, or quantities without mechanical changes.

 

5. Bag Sealing

Once filled, the bag moves to a sealing station.
 
✅ Sealing methods include:

Heat sealing (for plastic bags).

Ultrasonic sealing (for speciality materials).

 

Core Technologies Inside a Flexible Packing Machine

Why Use a Flexible Automatic Packing Machine?

What Products Can Be Automatically Bagged?

Flexible automatic packing machine can be used for a wide range of discrete manufactured components.

• Industrial Components & Fasteners: Screws, nuts, bolts, washers, hinges, and hardware kits.
• Medical Devices & Pharmaceuticals: Syringes, surgical fittings, valves, and fluid connectors.
• Plastics & Injection Moulding: Moulded parts, plastic caps, fasteners, and custom enclosures.
• Electronics & Electrical: Sensors, micro-connectors, wiring harnesses, and PCB components.

Automatic Bagging Machines for Small Parts

Small parts create particular challenges for automated packaging. Components may overlap, become entangled, arrive in random orientations or be difficult to separate reliably before packing.

A flexible automatic bagging machine for small parts addresses these challenges by separating product presentation from product recognition.

The flexible feeder presents components across a controlled surface, machine vision identifies suitable parts, and the robot picks them individually before placing them into the bag. This makes the process less dependent on dedicated mechanical orientation tooling.

For manufacturers producing multiple component variants, this approach can also provide greater flexibility when products or production requirements change.

Why Choose RNA Flexible Automatic Bagging Systems?

RNA Automation develops feeding and handling systems for applications requiring reliable component presentation, orientation and transfer.

Our flexible packing solutions combine technologies such as flexible feeders, machine vision, robotic pick and place and automatic bagging equipment to create an integrated process tailored to the component and production requirement.

The FlexType™ P Pack platform is designed for flexible component feeding and automated packing applications, helping manufacturers automate the handling and bagging of small parts while accommodating product variation.

From initial component assessment and feeding trials through system design and integration, RNA engineers evaluate the complete handling process to determine the most appropriate feeding, vision, robotic and packaging solution.

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Last edited on: September 14, 2026