Hubs is now Protolabs Network. Find out more

Get instant quote

Online injection molding service

Access a wide range of custom services from our specialized network of injection molding service companies. Prototype and production tooling. Upload your parts for a free quote and expert feedback.

Get an injection molding quote All uploads are secure and confidential

Our custom injection molding services 

Create parts of all complexities sized from 3 mm (0.12 in) to 2 m (79 in) with Protolabs Network. Lead times are as fast as 10 days, and we offer local or global production options. Our manufacturing partners typically use 20 to 3,000 ton injection machines, depending on part size, complexity, and volume. DIN 16901-130 and tighter tolerances are available on request.

Custom injection molding services
Plastic injection molding

Injection molding is the manufacturing process of injecting high-pressure thermoplastic into a mold. Ideal for high-volume production.

Custom injection molding services
Insert molding

A manufacturing process in which a part is molded around a pre-installed insert in the tooling.

Custom injection molding services

A manufacturing process in which one plastic material is molded over another to create a single component.

Custom injection molding services
Liquid silicone rubber molding

A thermoset process that involves mixing a two-part solution together to produce flexible and durable parts.

Find out more about the timeline. Download our Gantt chart.

Tooling - prototyping vs production

Family mold for injection molding

Ideal for rapid prototyping and low-volume production

  • Tool shot life – 1k to 100k units

  • Fast turnaround and cost-efficient construction

  • Aluminum or steel

Multi cavity mold for injection molding

Longer-lasting tooling for larger volumes

  • Tool shot life – 100k to 1M units

  • Automated production for cost-efficiency at higher volumes

  • Hardened steel for longer life and a scalable unit price

Secondary operations

We offer several secondary operations such as painting or heat tapping inserts. You can specify which secondary operations are needed in the “custom requirements” part of your quote request. Here are some examples of secondary operations we provide:

check icon
check icon
Pad Printing
check icon
check icon
Silk screening
check icon
Ultrasonic welding
check icon
Laser engraving
check icon
UV coating
check icon
Heat staking
check icon
Hot stamping
check icon
Post-mold machining

Injection molding surface finishes

SPI surface finishes for injection molding
SPI surface finishes

We offer any type of SPI surface finish, such as A-1, D-2 or D-3.

VDI surface finishes for injection molding
VDI surface finishes

We offer any type of VDI surface finish, such as VDI28, VDI30 or VDI 33.

Injection molding materials

Injection molding uses a huge range of plastics, making it ideal for many applications across nearly every industry. We can source thousands of materials on request. Please contact for specific material requests.

Explore our Injection Molding materials

Property Materials
Impact resistant ABS, PMMA, PVC, PE, PC
Wear-resistant POM, PEEK, UHMW
Dimensional stability ABS, PBT, HIPS, PPS
Chemical resistance PEEK, PP, PBT, PE, LDPE, PA
Rubber like TPU, TPE, Silicone
Cost-efficient PP, HDPE, LDPE
Cosmetic ABS, PC, HIPS

The process of our injection molding service

1. Upload your design

Upload your parts to our platform to have your project reviewed by our team

2. Receive a quote

Your account manager will work with our technical team and manufacturing partners to send you a quote within 48 hours

3. DFM & tool approval

Receive extensive Design For Manufacturing analysis to approve before construction of your tool begins

4. Receive T1 samples

We send you a golden sample for approval before starting production

5. Production & delivery

We produce your parts to match the golden sample & deliver them to you

6. Reorder as required

You can easily reorder parts by contacting your account manager

The injection molding timeline

Ready to start the injection molding process? Download our Gantt chart to help keep your injection molding project on schedule, within budget and to spec.

The Protolabs Network Standard - consistent quality, every time

Protolabs Network applies a rigorous set of standards to every custom part, ensuring quality and consistency for injection molded components. We inspect each order dimensionally and visually during and after production.

Tolerances & dimensional accuracy Dimensions icon
Tolerances & dimensional accuracy
Learn more
Mold finish standards Finishing standard illustration
Mold finish standards
Learn more
Quality control procedures Quality control icon
Quality control procedures
Learn more

Our injection molding team

Manufacturing doesn’t have to be an anonymous process. We have a dedicated team of injection molding project engineers and support staff on the ground to help make sure everything runs smoothly and on time, every time.

Injection molding engineer

"I take care of your parts from start to finish, making sure you receive the parts on time and exactly as you requested.”

Shak Akharov, Injection Molding Project Engineer
Quality control manager injection molding

“I guarantee that your parts go through an extensive quality control process, so they will always be up to spec.”

Wilmer Milloria, Quality Control Manager
Supply chain manager injection molding

“I make sure we always have a manufacturing partner in our network that fits your manufacturing needs.

Ruiqi Li, Supply Chain Manager
Injection Molding Engineer

“I ensure our customers are constantly updated on the status of the project and guarantee that they experience a smooth ordering process.”

Karlo Stetic, Injection Molding Project Engineer

What are the customer experiences of our injection molding service?

Frequently asked questions about injection molding service

How much does plastic injection molding cost?

There are many factors that determine the cost of injection molding your custom parts. The three main expenses are tooling, materials and production. Find out how to reduce your manufacturing costs in our injection molding guide.

Who owns the injection mold?

Customers retain ownership of all custom tooling they develop, however, any reusable proprietary components developed by the manufacturing partner (MP) will become the MP’s property. All custom tooling will remain at the MP’s facility for a minimum of two years unless otherwise agreed. If the tooling is inactive after two years, the MP may contact Protolabs Network to determine if the tool must be retained for additional time. Protolabs Network will then contact the customer to make further arrangements. Molds can be transferred to any desired location upon request and at the requester's expense.

What happens if an injection molding partner leaves our network?

Whenever a manufacturing partner leaves our network, we carry the cost of transferring all molds to another MP in the network, ensuring that your parts get delivered on time.

What is the available capacity/timeline for reorders?

In general, we have the RFQ ready within 24 hours. It takes two days to set up the mold and order and process the materials, and one day for packing and sending the order out to be shipped. The volume of your parts will determine the number of days required for manufacturing.

What ISO certifications do you have?

We work with a network of specialized injection molding companies that have ISO 9001 and ISO/TS16949 certifications. This way you will get the best injection molding service possible.

How long do you store my mold for?

Your injection molding mold is kept at our manufacturing partner facilities for reuse for a minimum of 2 years.
If you would like to reorder from your mold, please contact your account manager or

Our other manufacturing capabilities

CNC machining Other manufacturing capabilities
CNC machining

Milling (3-, 4- & full 5-axis), turning and post-processing

  • 50+ metals and plastics & 10 surface finishes

  • Tolerances down to ±.0008 in (0.020 mm)

  • Lead times from 5 business days

See our CNC machining services
3D printing Other manufacturing capabilities
3D printing


  • 25+ plastics & 35+ colors

  • ±0.5% dimensional accuracy with a lower limit down to ±0.0059 in (0.15 mm)

  • Lead times from 1 business day

See our 3D printing services
Sheet metal fabrication Other manufacturing capabilities
Sheet metal fabrication

Laser cutting, bending, post-processing

  • 6 metals & 9 surface finishes

  • Tolerances down to ±.004 in (0.010 mm)

  • Lead times from 5 business days

See our sheet metal fabrication services

Put your injection molded parts into production

Get an injection molding quote