Blister Packaging Machine

Blister packaging machines typically form a plastic roll film into a cavity, fill it with powder, liquid, or viscous material, and then seal the cavity and cut it into single unit. Blister packaging machine are commonly used for small products packaging like sauce,cosmetic serum, capsules, honey.

How Does A Blister Packaging Machine Work?

The operation of a blister packaging machine generally follows below steps

Step 1: Film Feeding – A roll of forming film (like PVC hard film, PTP aluminum film) is automatically fed into the machine.

Step 2: Forming – The film is heated and shaped into cavities by pressure, or cold forming methods.

Step 3: Material Filling – Each cavity is filled with the required product, whether it is liquid, paste, powder or granule.

Step 4: Sealing – The cover film (like composite aluminum film) is fed on top and sealed through heat or pressure.

Step 5: Punching & Cutting – The finished products are cut into individual units or multi-cavity sheets (this is customizable as production need).

Step 6: Discharge – The final blister packs are discharged for next production process.

What Materials Are Used For Blister Packaging?

Selecting the right material is crucial for blister packaging. Common options include:

PVC – Cost-effective, transparent, and widely used for general blister packaging.

PET – Offers higher clarity and recyclability, ideal for eco-friendly applications.

Laminated Films – Combinations like PVC/PE or PET/AL/PE, it provides both visibility and strong protection.

Aluminum Foil – Suitable for cold forming, providing excellent moisture and light barrier properties, ideal for sensitive products..

Common Cavity Forming & Sealing Types

Blister packaging machines can produce different cavity and sealing styles as production needs, common type are as below:

Single chamber blister pack

One cavity corresponds to one registration point, forming a single-unit package.

The most common type, designed for “one tear, one portion.”

Dual-chambers blister pack

Two cavities are arranged side by side, with one registration point corresponding to both cavities.

Convenient for “dual flavors” or larger portion packs.

V-shaped easy snap blister pack

Two connected cavities designed with a break line in the middle, allowing them to be snapped apart into two individual packs.

Often used for honey, sauce or hand sanitizer. Through V-shaped folding or forming, users can easily snap or tear the package, controlling the amount used per serving.

There are many other different typs of blister packaging products, we can offer customized packaging solution as needed.

Difference Between Cold Forming and Heat Forming

1. Material & Process

Cold Forming: Uses aluminum-based foil that is mechanically pressed into cavities without heat.

Thermoforming (Heat Forming): Uses plastic films such as PVC, PET, or PS that are heated and pressure-formed into cavities.

2. Suitable Products

Cold forming packs a serious punch when it comes to protection—it blocks out moisture, oxygen, and light like a champ. That makes it a perfect match for anything sensitive, like meds or premium sauces.

Thermoforming, on the other hand, offers great visibility so products can really stand out on the shelf. The trade-off is that its barrier performance isn’t quite as strong.

3. Production Speed & Cost

Cold Forming: Slower due to the mechanical pressing process, higher material cost.

Thermoforming: Faster and mmore cost-efficient, plastic film is cheaper than cold-formed aluminum.