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Large Part Injection Molding Service

When molding large parts, small details become even more important. At Elimold, the right infrastructure, innovation, and expertise come together every day to produce high-quality, cost-effective parts. Focusing on fit, form, and function ensures we exceed our customers’ expectations and requirements over the long-term part production process. Get custom plastic molded prototypes and production parts in as little as 10 business days.

Elimold's Large Component Injection Molding Capabilities

As a leading plastic parts manufacturer in China, Elimold is committed to providing precision, custom plastic injection molding services to deliver quality components to all of our customers. We utilize our ISO 9001 2015 certified facility to deliver custom molded plastic parts in a wide range of materials. We can produce large quantities of small and large parts, with shot sizes ranging from 3 ounces to 600 ounces. Our advanced plastic molding equipment has unmatched pressure clamping forces ranging from 30 tons to 3,000 tons, with up to 64 cavities. We also offer large part rotational molding, blow molding, and thermoforming with custom coloring capabilities.
In addition, our experts are committed to helping you create the best quality products at a lower production cost. We combine the power of cutting-edge infrastructure, innovation, and experience to produce high-quality, cost-effective parts that meet your specific needs. We also offer a full range of value-added services to meet your manufacturing needs.

Injection Mold Tooling

Putting Large Part Projects in Motion

Different processes offer different advantages. Here are the ways we can optimize your large part molding project.

Gas Assist Molding

Assist the molding process with strategically timed and incorporated pressurized gas to make stronger and more aesthetically pleasing parts.

Molded-in Color

Produce parts with vibrant, long-lasting color without painting, and eliminate quality issues due to scratching or peeling.

Secondary Operations

Provide fully labeled, decorated and assembled injection molded parts and sub-assemblies through value-added processes.

Insert Molding

Create a strongly bonded, integrated part by molding material around an insert piece for enhanced component reliability.

large parts for Automotive


Some of the plastic materials that we offer for large-part injection molding include:

  • Polypropylene (PP) ○ Polystyrene (PS)
  • High-Density Polyethylene (HDPE)
  • ABS
  • Nylon
  • Acetal
  • Polyester (PET / PETG) ○ Acrylic
  • Polycarbonate (PE)

What is Large Component Injection Molding?

Large component injection molding, also known as high-tonnage injection molding, is the production of large plastic components using injection molding technology. When molding large components, more than just a larger press is needed; the complexity of the item doubles or even quadruples, and the smallest details become more important. Proper mold design is essential, as even the smallest mistakes can exacerbate possible problems such as uneven textures, weld lines, gate white spots, or flow and weld lines. One of the most significant differences between small and large component molding is the cost-quality, which is significantly higher in the latter. The initial lead time for this method will also be a bit longer than small component injection molding, as this type requires a larger steel block that takes longer to mold.
During large component injection molding, plastic resin is forced into the mold cavity using extremely high pressure. Since the mold is composed of two different parts, a certain amount of force must be applied to hold the two halves of the mold together. This force is called the clamping force, and it can be used to easily calculate the required tonnage – a number that grows in direct proportion to the size of the part being produced. Large plastic injection molding technology is used in a variety of industries to produce a range of products from automotive parts to projectors.

Why is Large Part Injection Molding a Specialty Service?

Large part injection molding requires specialized machines and tools. That is, they are made with what we call large-tonnage injection molding machines, which consume a lot of resources. They take up more space on the factory floor, and each machine is expensive to operate. The capital cost of just one large-tonnage machine is also much higher than any other injection molding machine. The injection molds used in these machines also require special care. They are very heavy and require special lifting equipment to install and remove as needed. Handling the large plastic parts made by these machines also requires considerable space for preparation, packaging, and storage. These considerations limit the number of companies that can provide large part injection molding services.

plastic injection molded parts

Benefits Of Large Part Plastic Injection Molding

Large part injection molding might require the right equipment, skills, and budget, but it has its benefits too. We can help you experience these advantages if you work with us:

High Volume Production

Injection molding of large parts is primarily done to produce large size parts in big batches, which can be done reliably and with shorter cycle times than other plastic manufacturing methods. It’s a necessity when the same part needs to be recreated thousands of times in succession. This is beneficial if you’re in an industry in need of such parts in a specific time period.

Minimal Waste

Compared to other processes, injection molding of large parts creates fewer waste plastic or scraps, so it’s more cost-efficient. Having fewer scraps means that manufacturers don’t have to waste too much plastic resin in the process. The resin used during the manufacturing process can be maximized.

Fast Cycle Time

Many businesses choose large part injection molding, because it is more efficient. The time it takes for the plastic part to be manufactured is short, so more products can be produced in a short amount of time.

Versatility In Design

Large part injection molding is used to create a variety of products — from plastic decking, to large-size electronic casing and enclosures, to plastic chairs and tables, and many large-format items and designs you can think of.

Industries That We Serve

A variety of large part molds can be used for large part injection molding. Here at Elimold, we pride ourselves on being a one-stop service provider. We can help you with both injection mold making and injection molding. We are a trusted exporter of injection molds to clients all around he world — including the US, Brazil, Europe, UK, and others.

Automotive Industry

  • Automotive Bumpers: Large plastic bumpers for cars and trucks that require durability and impact resistance.
  • Instrument Panels: Dashboard and instrument panel components that demand intricate detailing.
  • Fender Liners: Parts that protect the engine compartment from road debris.
  • Interior Trim Panels: Large interior components such as door panels and trim pieces.
  • Air Intake Manifolds: Complex parts used in engine systems.

Aerospace Components

  • Aircraft Interior Panels: Large, lightweight panels for aircraft interiors that require precision and safety.
  • Aerostructural Components: Parts like fairings, ducts, and housings used in aircraft structures.
  • Large Aerospace Enclosures: Enclosures for avionics and electronic systems.

Industrial Equipment

  • Heavy Machinery Components: Parts for construction and industrial equipment, including covers, housings, and structural components.
  • Conveyor System Parts: Large plastic components used in conveyor systems for material handling.
  • Equipment Housings: Enclosures for industrial machinery, often requiring custom configurations.

Consumer Goods

  • Large Appliance Components: Parts for appliances such as washing machines, refrigerators, and dishwashers.
  • Outdoor Furniture: Large plastic components for outdoor furniture, such as chairs, tables, and playsets.
  • Storage Containers: Large plastic storage containers for home and industrial use.
  • Toys and Playground Equipment: Oversized plastic components for playground structures and toys.

Healthcare and Medical Devices


  • Medical Equipment Housings: Enclosures for medical devices and diagnostic equipment.
  • Prosthetic Limbs: Customized prosthetic limbs designed to fit the individual patient’s anatomy.
  • Orthopedic Devices: Large orthopedic devices such as braces, supports, and casts.
  • Dental Components: Large dental prosthetics and impressions for restorative dentistry.

Inquire About Large Part Injection Molding Here At Elimold!

If you’re interested to learn how large part injection molding can help you, don’t hesitate to leave us a message here at Elimold!