injection moulded prototype and production parts

Injection Moulding Service

Moulded prototypes and low-volume production parts in as fast as 1 day


ISO 9001: 2015 | JOSCAR

Plastic and elastomeric materials
Product developers served
4.4 Million
Parts moulded each month

Injection Moulding Processes

Make the move from prototyping to on-demand manufacturing for affordable, high-quality moulded parts within days. Better yet, your prototyping tool is free once you shift to an on-demand manufacturing tool. Working with a single supplier that provides free design consultation services also massively speeds up the manufacturing process, allowing for greater supply chain flexibility, more consistent parts, and making qualification a breeze.

Plastic Injection Moulding

Black plastic part

Plastic injection moulding is a manufacturing process where resin in a barrel is heated to a molten state, then shot into a mould to form a final production-grade thermoplastic part.

1-15 Working Days


Liquid Silicone Rubber Moulding

silicone rubber part

Liquid silicone rubber moulding is a thermoset process that mixes a two-component compound together, which is then heat cured in the mould with a platinum catalyst to produce a final part.

1-15 Working Days


Overmoulding & Insert Moulding

Overmoulded part

Overmoulding and insert moulding are two-part injection moulding processes where one material is overlaid onto a second substrate part or metal insert to create a single component.

1-15 Working Days


Consistency and Quality

We combine scientific (or decoupled) moulding techniques, which optimise and lock in processing parameters to ensure part consistency—with extra attention paid to critical-to-quality dimensions using our proprietary automated CMM process. Plus, with every order you'll get:

  • Comprehensive manufacturing analysis
  • Consultative design services
  • Quality reports like FAIs and process capability reports 
Learn More
Scientific Moulding

GD&T for Injection Moulding

We've added GD&T to our in-house first article inspections (FAIs) and process capability studies to give you an even more complete set of dimensional verification options.

Learn More

Injection Mould Tooling Options and Quality Reporting

We have two unique offers to meet your needs wherever you are in the product lifecycle. Our prototype injection moulding process helps you cut product development cycles by weeks—sometimes months—and bridge to production with injection-moulded parts within days. Our On-demand Manufacturing process is designed to meet your production needs, and helps you qualify parts quickly to seamlessly transition into production with scientific moulding, in-process CMM inspections with GD&T, and a full suite of secondary operations to make sure that your parts show up and perform as expected.


OBJECTIVE I need to validate my design at Protolabs speeds. I need the flexibility to economically iterate before production. I have on-demand production needs at Protolabs speeds.
  • Completing design or material iterations, and assessing cost or manufacturability trade-offs
  • Key focus is to reduce design risk, increase R&D productivity, and iterate faster to reduce time to market.
  • Typical Quantities <2,000
  • Design is finalised and run-to-run part consistency is critical.
  • Key focus is to improve quality, reduce cost and mitigate supply chain risk
  • Process development, qualification documentation, and mould capability information is required 
MOULD PRICE Lower Higher
PART PRICE Higher Lower
MOULD CAVITIES Single Single and multi-cavity
GUARANTEED MOULD LIFE Limited (guaranteed for at least 2,000 shots) Unlimited
MOULD STORAGE Stored for 18 months of inactivity Stored for 3 years of inactivity
MOULD OWNERSHIP Upon request Yes
QUALITY DOCUMENTATION Basic inspection reports available upon request
  • Scientific Moulding Process Development Report
  • In-Process CMM inspection of critical dimensions, including 9 GD&T symbols
  • First Article Inspection (CTQ)
  • 30 Part Capability Study (CTQ)

Aluminium moulds
Standard lead time of 15 days or less
Tolerances of +/-0.08mm plus resin tolerance (mm./mm.)
Set-up fees apply to each production run 
Consultative Design Services (CDS)
Finishing Options
No minimum order quantities (MOQ)
Quick-turn shipping in as fast as 1 day

Injection Moulding Materials

We have wide selection of more than 100 thermoplastic and thermoset materials. And if you're looking for alternative material options, check out our guide to resin substitutes for ABS, PC, PP, and other commonly moulded plastics.


  • ABS
  • ABS/PC
  • Acetal
  • Acetal Copolymer
  • Acetal Homopolymer
  • HDPE
  • LDPE
  • Nylon 6
  • Nylon 66
  • PBT
  • PC
  • PEEK
  • PEI
  • PMMA
  • Polypropylene
  • PS


  • Standard silicone (30,50,60, and 70)
  • Dow Corning Clear
  • Dow Corning Optical Clear



Green Injection Moulded Part

If you have any issues getting your guide, click here to download.

Injection Moulding Design Guide

Learn the basics of create quality plastic parts with this downloadable guide.

Protolabs Machinery scale

Advantages of Injection Moulding

Injection moulding is plastic manufacturing process that can produce high quality parts at scale. It's typically used for low- to high-volume production but our aluminium tooling can also make prototyping runs economical.

  • Low cost at higher volumes
  • Exceptional part cosmetics and surface finish
  • Repeatable
  • Complex parts
  • Low scrap rate
  • Large selection of thermoplastic and thermoset materials



Injection Moulding Applications

Injection moulding is widely used for plastic part production in medical, consumer, and automotive industries. Typical parts include:

  • Housings
  • Brackets
  • Gears
  • Single-use medical parts
  • Electrical connectors
  • Syringes
  • Containers

Injection moulding thermo enclosure

What's in an Online Injection Moulding Quote?

We do quoting a little differently. When you request an injection moulding quote, you'll not only receive accurate pricing, but also a manufacturing analysis—within just a few hours. Our online quoting platform also provides you with gate and ejector pin layouts and a price curve tool to help select the best tooling option for your project.

Get a Quote

Why Choose Protolabs for Injection Moulding?

Why Choose Protolabs for Injection Moulding?

Rapid injection moulding works best for on-demand production, bridge tooling, pilot runs, and functional prototyping. Our affordable aluminium moulds and quick turnaround times help reduce design risks and limit overall production costs. We offer plastic injection moulding, liquid silicone rubber moulding, insert moulding and over moulding.

Which Injection Moulding Service to Choose

Injection Moulding, with it's multi cavity and family tooling options, consistent and repeatable process, tool guaranteed for life and more.

Multi Jet fusion, with it's exceptional mechanical and electrical properties, chemical resistance, suitability for medical applications and more.

Or Overmoulding & Insert Moulding, with its ability to combine two materials, increase strength and durability and more.

Reinventing Manufacturing with Injection Moulding

Speed in product development and part production are key to success. Protolabs are ideal in low volume production, bridge tooling, pilot runs or functional prototyping.
Upload a part and get a quote in as fast as a few minutes.

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