How Vacuum Molding Can Help Your Industrial Business

Vacuum forming or vacuum molding refers to simplified thermoforming, wherein a plastic sheet is heated, forming functional plastic parts. This copying technique uses silicone and polyurethane molds for rapid production, most especially for low volume batch product manufacturing. So, how is vacuum molding beneficial to your industrial business?

How Vacuum Molding Can Help Your Industrial Business

Vacuum molding is a practical solution to the ever growing demand in product design and product development process among industrial businesses. It promotes rapid production and cost-effective molding alternatives as compared to other plastic-forming methods. An industrial business will surely thrive by using vacuum molding when creating prototypes as well as actual finished products.


Below are some ways vacuum molding can help your startup industrial business


Ways Vacuum Molding Can Help Your Industrial Business


1. Vacuum Molding Promotes Rapid Production

Prototypes or sample smaller product versions are rapidly produced with vacuum molding, with detailed parts similar to the full-sized version. For low volume or short-run manufacturing, vacuum forming can be an indispensable tool in creating high-quality plastic components.


So, how does the vacuum molding process work? Plastic vacuum molding involves heating an extruded flat plastic sheet until pliable, which is thereafter shaped by vacuum application (3D shape). Once the mold has cooled down and hardened, you’re able to trim the plastic part into your desired profile.


Here’s the step-by-step process of vacuum molding:

  • Clamping: The plastic sheet must be firmly held so the clamp frame should be powerful enough during the molding process. It should have the capability to handle the thickest material on the machine. Using an automated process is important so moving parts are properly guarded and interlocked. It will prevent accidental damage. Also, a safety guard is required for safe machine operation.
  • Heating: Infra-red elements are used in heating the material, which is mounted in a reflector plate made of aluminum. Obtain the best vacuum molding results through uniform heating. You can use any material with vacuum molding and heat the entire surface uniformly. Sophisticated quartz heaters have a lesser thermal mass than other heaters for a quicker response time. Twin heaters (pyrometers) are recommended when molding thicker materials because they provide faster cycle times and more even heat penetration. If you want to form high-temperature materials, twin quartz heaters are recommended.
  • Vacuum: After the material is pre-stretched, you can apply a vacuum in assisting with forming the sheet. To draw trapped air between the mold and the sheet, a vacuum pump should be used. A large machine vacuum reservoir can be used with a vacuum pump that has a high volume capacity. It enables two vacuum stages to ensure rapid forming before the temperature of the sheet drops below the ideal molding temperature.
  • Cooling and Release: These processes are not available on all vacuum molding machines. The plastic should be cooled down before being released because releasing it too soon may result in a rejected part. You can use fans once the part or desired product is formed for a rapid cooling cycle.


2. Versatile and Cost-Effective Plastic Molding Alternative

When manufacturing parts, there are many options available such as injection molding. However, if you want a versatile and cost-effective molding alternative, vacuum molding is a better option. It involves a simpler process compared to injection molding. It involves less equipment for parts production and requires less tooling.


Vacuum molding companies are offering economical services, giving customers flexibility in their desired design for various plastic products due to low-cost tooling modifications. If you’re looking for an economical process of making three-dimensional plastic products, vacuum forming is a great choice. It provides sharp and precise details. Also, it gives an option for visually appealing decoration, like trimming.


3. Vacuum Molding Helps You Save Time and Increase Productivity

Time is money, and vacuum molding is a cost-effective choice of production. Sophisticated versions of vacuum molding facilitate automated production, which generates larger product quantities in less time. Before launching a new product, it’s a smart move to create prototypes for testing rather than ending up recalling a batch of defective or poorly designed full-sized products.


Less time is spent between the outcome and design of the product because of vacuum molding’s simple production process. You have more time to concentrate on the more intricate product details. Also, products are introduced into the market far quicker than other manufacturing processes.


4. Vacuum Molding Provides a Cost-Effective Manufacturing Solution

Vacuum molding is a plastic processing technology that is a cost-effective solution for many industries. Vacuum formed material is made by flattening a hard plastic sheet using heat and vacuum adsorption is used on the molded surface. Once the molded material has cooled down, you can use it for various applications depending on your product, such as advertising, lighting, decoration, plastic packaging, and other materials.


As a startup industrial business, you may have a tight budget for everything, trying to balance quality production and the costs of materials and labor. Before full production is carried out, creating prototypes allow product testing to test parts and observe flaws in design and product functionality. Tooling costs are less expensive compared to other plastic manufacturing processes, such as injection molding, especially on short production runs or large parts.


5. Vacuum Molding Promotes Flexible Tooling Design

Vacuum Molding

When it comes to design specifications, vacuum molded products have precise details and support into another object. Vacuum molding minimizes errors during production, thus avoiding recalling stock and lowering related costs.


Vacuum forming allows products to realize a designer’s product aesthetics, which is crucial in a market economy that is dominated by branding and company logos. Vacuum molding also meets practical design requirements. It’s a popular production process in the packaging industry, producing anything, from the inserts in food packages to yogurt pots. From electronics, automotive, medical equipment, construction, and other industries, vacuum molding can be used as an effective tooling design.


6. Vacuum Molding Can Help You Meet Manufacturing Requirements

You can choose from a wide range of colors, textures or embosses, as well as promote UV stability, thickness, fire retardation, antibacterial, and chemical resistance in your prototypes and eventually in your final product.


Use various types of vacuum formed materials such as high-impact polycarbonate, chemically-resistant polypropylene, polyethylene, ABS, HIPS, and more. Also, specialty materials are available to meet smoke, fire, and toxicity regulations. Use the technology of vacuum molding to modify or create a new product that will bring you more clients and higher sales.


7. Vacuum Molding Allows the Flexible Use of Various Forming Materials

Thermoforming, like vacuum moulding, involves processing plastic materials. All thermoplastics can be vacuum formed and vacuum formed products are everywhere, thus playing a major role in the lives of many consumers. With vacuum molding, you can choose from a wide array of plastic materials that best fit the features and benefits you want for your products. Of course, you’ll also benefit from the cost-effectiveness of this thermoplastic technique.


As previously mentioned, vacuum is applied into a thermoplastic material, which sucks the sheet or film into the mold with vacuum forming. The vacuum molding process uses hydraulic, sophisticated pneumatic, and heat controls that enable more detailed vacuum molded applications and higher production speeds.


Here are the commonly used materials for vacuum molding:

  • Acrylonitrile Butadiene Styrene or ABS
  • Polyester Copolymer or PETG
  • Polystyrene or PS
  • Polycarbonate or PC
  • Polypropylene or PP
  • Polyethylene or PE
  • Polyvinyl Chloride or PVC
  • Acrylic PMMA


8. Vacuum Molding Produces High-Quality Products

Vacuum molding allows you to create highly detailed and high-quality products in a wide range of sizes. In that way, you can optimize the appearance and materials to adapt to the needs of your customers, which means higher customer satisfaction and more revenue for your business. Achieve your product goals easily and more effectively with this technology.


With the flexible tooling design, prototypes have visually appealing aesthetics, and you can make quick changes as necessary with the least amount of tool change costs spent. Low volume manufacturers prefer vacuum forming because vacuum formed parts have better cosmetics and are more economical than fabricated sheet metal products.


Here are the features of vacuum forming mold features:

  • Lightweight
  • Good seal performance
  • Easy to transport
  • Environmentally friendly
  • No additional cushioning for vacuum packaging
  • Beautiful shape
  • Automated packaging
  • Improve efficiency
  • Suitable for mechanization


If you want your startup industrial business to thrive, you have to know the latest qualities and demands in your niche or market. Vacuum forming is usually used in product packaging. This technology allows you to create plastic products and even vacuum packaging equipment used to create various plastic products. You can create high-quality products through research and development, and strict quality assurance should be carried out.


9. Vacuum Molding Is Best For Product Packaging

Vacuum molding is a thermoforming process that uses heat in creating plastic sheets or films that are pliable when forming around and over a mold. Vacuum molding serves various industries like electronics, food, medical, consumer products, cosmetics, toys, appliances, automotive, athletic equipment, and office supplies.


The packaging industry relies on vacuum formed items, like blister packs, trays, clamshells, and inserts. All of these items hold various products in place, making it a crucial aspect of packaging protection and offering aesthetic appeal.


Here are the examples of different packaging products, components, and equipment created as a result of vacuum molding:

  • Blisters
  • Sealing machines
  • Folding machines
  • High frequency machines
  • Plastic molding machines
  • Baths and shower trays
  • Ski-Boxes
  • Yogurt pots
  • Boat hulls
  • Vehicle door liners
  • Machinery guards
  • Refrigerator liners
  • Parts of vehicle cabs
  • Sandwich boxes
  • Exterior shop sign


10. Different Vacuum Molding Methods Are Used in Various Applications

Vacuum molding is used in producing plastic ceiling decorative products, art materials, refrigerator shells, washing machines, motor shells, and daily necessities. It relies on a vacuum pump mold, which is heated between the thermoformed sheet material, converting it into a vacuum state. It results in sheet or plate material, so the sheet is tightly covered in the surface. Vacuum forming is divided into a punch or single Yang mold, die or single female mold, and no mold.


Here are the details of different types of vacuum molding used in different applications:

  • Punch or Single Yang Mold: The process involves a plastic sheet having a clip when heating. The vacuum holes open, the sheet is softened, and folded down or punched on the shift. The sheet is stretched and punched after it is sealed. The shape is achieved with the pressure of a punch vacuum.
  • Die or Single Female Mold: It is also called simple or direct molding, wherein the sheet of material is held on a die. It has a vacuum hole in the lower mold cavity. The die is evacuated after the sheet melts and softens. The vacuum and atmospheric pressure cause stretching and adherence of the sheet to the cavity of the concave mold, and the mold is blown after forming.
  • Moldless or No Mold: It is also referred to as free molding and this is used to blow different hoods.


11. Vacuum Molding Helps Properly Trim and Finish Parts

After a part has been formed and cooled down, the next step is to remove any excess material. Slots, cut-outs, and holes are drilled into the part. The other post-molding processes include printing, strengthening, decoration, assembly and reinforcing.


There are different trimming methods used in trimming the product from the material or sheet. The best-suited type of equipment highly depends on the type of size and cut of the part, material thickness, draw ratio, and required production quantity. Thin gauge parts are usually trimmed on a roller press or mechanical trim press. If you want to properly trim and finish components or parts, vacuum molding is your best choice.



Make your customers happy and satisfied by creating product prototypes, so you can test your new product before launching it into the market. Vacuum molding is in-demand because it makes a valuable tool for faster, more cost-effective, and reliable production or manufacturing process. It benefits startup industrial businesses budget-wise without compromising quality assurance procedures, as well as builds business credibility, authority, and trust. For the success of your industrial business, adapt vacuum forming in your product development process.

Francis Nwokike

Francis Nwokike is the Founder and Chief Editor of The Total Entrepreneurs. A Social Entrepreneur and experienced Disaster Manager. He loves researching and discussing business trends and providing startups with valuable insights into running a profitable business. He created TTE to share ideas and tips to help entrepreneurs run and grow their businesses.

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