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Injeciton Molding Service

Custom injection molded prototypes and production parts, with prototype molds durable up to 10,000 components.

  • .Get a quote in less than 2-hours
  • .Parts delivered in as little as 7 days
  • .5K and 10K shot prototype molds
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Injection Molding Capabilities

Rapid prototype tooling uses aluminum inserts to make the tool. This method is only for small quantities, providing design flexibility, reducing the mold cost and cut down lead-time to around 1-2 weeks.

Ideal for mass production of plastic injection molding parts. Tooling costs are higher than rapid tooling but has significantly cost per unit. The lead-time for production tooling usually takes around 3-4 weeks.

Family molds reduce tooling cost by accepting dissimilar shapes into the same mold. This process is ideal for intermediate-volume prototypes of various shapes by leveraging the manufacturing efficiency of molding with the flexibility of custom tooling.

Best for high-volume, repeatable parts, multi-cavity molds contain identical cavities to increase throughput and achieve a lower favorable per-unit cost.

An existing molded part is installed in the mold, then covered with new material. This two-step process enables multi-material part design flexibility by creating molds with dissimilar materials of construction.

Materials

Injection molding has the most variable options for materials, colors, and configurations when compared to CNC machining or 3D printing. Here are the materials RapidDirect provides for injection molding services.

Rigid Plastics

Rigid plastics offer a range of sought after properties, including good impact strength, rigidity, thermal resistance, chemical resistance, dimensionality and color stability. The combination of strength, ductility and heat resistance make rigid plastics suitable for a range of industrial injection molding applications.

Subtypes

  • .ABS
  • .Acetal POM
  • .Acrylic
  • .HDPE
  • .Nylon 6
  • .Nylon 6/6
  • .PBT
  • .PC-PBT
  • .PEEK
  • .PEI
  • .PLA
  • .Polycarbonate
  • .Polypropylene
  • .PPE-PS
  • .PPS
  • .PSU
  • .PVC

Flexible Plastics

Flexible plastics are also broadly used in injection molding for applications that require elasticity. The fast curing materials are used in the manufacturing, military and art sectors, to name but a few.

Subtypes

  • .LDPE
  • .PET
  • .Polystyrene
  • .PC-ABS
  • .Polyethylene

Rubber Plastics

Rubber plastics are well suited for injection molding because they can easily be brought to molten state and poured into molds. When solidified, they do not require any release agents to be removed from the molds. Rubber plastics demonstrate flexibility, high temperature resistance for post-cure processes and cost-efficiency.

Subtypes

  • TPE
  • TPV

Finishes

For most of the injection molded parts, no post-processing is needed. This is because the mold itself are usually finished to different levels and directly affect the surface finish of molded parts.

Glossy Finish

A grade finishes are made using a diamond buffing process and yield shiny and glossy surfaces.

Semi-Glossy Finish

B grade finishes use grit sandpaper to produce parts with a slightly rougher finish than grade A parts. Products that undergo B grade finishing have a matte surface texture.

Matte

C grade finishes use grit sanding stones to produce a rough, uneven surface. Products that undergo C grade finishing have a matte surface texture.

Textured Finish

D grade finishes use grit and dry glass beads or oxide to produce a very rough textured finish. Depending on the type of material used, products can have a satin or dull finish.

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