Injection Molding

A faster, easier way to order high-quality injection molded parts that accelerates iteration, testing, and scaled production. Upload your designs for DFM feedback and pricing in 1 business day.


Injection Molding Processes


OEM Plastic Injection Molding

Steel tooling, rapid lead times, and no minimums — ideal for prototyping, design validation, and bridge production.



Whether for buttons, grips, or seals, mold rubber or silicone over an existing plastic part.


Insert Molding

Mold plastic around a preformed — often metal-threaded — insert.

What Is Injection Molding?

Injection molding is the most cost-effective way to make a plastic part at scale. The injection molding process involves injecting molten plastic into a mold tool, then ejecting the solidified part. This process quickly repeats hundreds or thousands of times, amortizing the cost of the mold tool and driving down the cost of each unit to a few dollars or less. Since the injection molding process uses the same mold tool for each part, it offers consistent quality across every part. Injection molding also has the highest variety of materials, colors, cosmetics, polishes, and surface textures when compared to CNC machining or even 3D printing.

BoYi’s custom plastic mold service is a service providing on-demand prototype and production molding. We take a customer-first approach which means we find the right injection molding supplier within our manufacturing supplier network to mold the parts the way you need them—without design compromises—at the right price point. We offer expert consultation on each injection mold quote and project managers on every order to move your parts from design to production. Our team has experience in every industry, especially medical injection molding and liquid silicone rubber molding. First-time buyers receive $500 off their first mold with Xometry. We offer both domestic and China injection molding options, as well as ITAR injection molding.

Injection Molding Capabilities


Lead Time

Starts at 5 business days, including fast quote responses with design-for-manufacturing (DFM) feedback

Production Options

Domestic and international


Most plastics, including custom sourcing and matching; see materials list below

Machines Available

Single, multi-cavity, and family molds; 50 to 1,100+ press tonnage; side actions including hand-loaded cores.

Inspection and Certification Options

Includes FAI and PPAP. ISO 9001, AS9100, ISO 13485, UL, ITAR, and ISO 7 and 8 Medical Clean Room molding.

Tool Ownership

Customer-owned with mold maintenance

Mold Cavity Tolerances

+/- 0.005″ when machining the mold and an additional +/- 0.002″ per inch when calculating for shrink rate

Part to Part Repeatability

+/- 0.004″ or less

Critical Feature Tolerances

Tighter tolerances can be requested and may increase the cost of tooling because of additional sampling and grooming. Xometry will mill to a steel-safe condition on critical features.

Available Mold Types

Steel and aluminum; Production grades range from Class 105, a prototype mold, to Class 101, an extremely high production mold. Xometry typically produces Class 104, 103, and 102 tools.

How to work with us

1.Sending CAD Files To Email or LinkedIn

First, you can send CAD files and detailed information (material, quan-tity, tolerance, etc.) to us  Email or Linkedin .

2.Manufacturability Analysisand Offering Quotation

Secondly, we will analyze manufactur-ability based on drawings of productsand give you a favorable quotation.

3.Start manufacturing!

Thirdly, we will start manufacturing process once all relevant deatials are fully confirmed.

4.Parts are Completedand Shipped

Finally, we will carefully pack and shipthe goods when the products are completed.


We Are Here For You

Ready to Get a Injection Molding Quote? Free shipping available for domestic Injection Molding orders ; learn more!

Quick Turn Molding Services Criteria Table

GuidanceQuick Turn Molding


Prototype grade aluminum molds

Mold Shot Life

Up to 2,500 shots

Size Limitations

Max XYZ of 10″x12″x3.9″

Mold Finishes

6 Standard finishes (SPI-A2, A3, B2, B3, light or heavy textured)

Inspection Options

Standard XYZ Dimension Report

Typical Quote Response Time *

Same day, in as little as 2 hours

Part Lead Times

Fast as 5 business days

Country of Origin

Domestic only (made in USA)

* Quoting response times reflect requests received during business hours, requests received outside business hours will be addressed the following business day.

Injection Molding Parts Made By BOYI

Quick Turn Molding Materials

Material Families Available

ABS | Acrylonitrile Butadiene Styrene

PC-ABS | Polycarbonate-Acrylonitrile Butadiene Styrene

ASA | Acrylonitrile Styrene Acrylate

HDPE | High-Density Polyethylene

HIPS | High-Impact Polystyrene

LCP | Liquid Crystal Polymer

LDPE | Low-Density Polyethylene

PA 6/6 | Polyamide 6/6, Nylon 6/6

PBT | Polybutylene Terephthalate, Valox

PBT-PET | Polybutylene Terephthalate-Polyethylene Terephthalate

PC | Polycarbonate

PC-PBT | Polycarbonate-Polybutylene Terephthalate, Xenoy

PEBA | Polyether Block Amide

PET | Polyethylene Terephthalate, Rynite

PETG | Polyethylene Terephthalate Glycol, Eastar

PMMA | Polymethyl Methacrylate, Acrylic

POM | Acetal Polyoxymethylene, Delrin

PP | Polypropylene

PPA | Polyphthalamide , Zytel HTN

PS-PPE | Polystyrene-Polyphenyl Ethers, Noryl

PS | Polystyrene

Soft PVC | Polyvinyl Chloride, Geon HC

TPE | Thermoplastic Elastomer, Santoprene

TPU | Thermoplastic Polyurethane (Shore A)

TPV | Thermoplastics Elastomer, Vulcanized Rubber

For more information on these materials, see our materials page. Customers may also supply their own materials upon request.

Need Help?


Injection molding could absolutely be used for prototyping, but it depends on the project requirements. Typically, for projects that require less than 10 prototypes, injection molding may not be the most cost-effective option. We are happy to meet with you to discuss your needs and help determine if injection molding is the correct process for you.

BOYI is happy to offer you injection molding services with NO minimum order quantity.

Absolutely. As long as you are able to supply project requirements and part specifications, Fictiv is happy to provide a no-obligation quotation.

Of course! BOYI will maintain your mold for 2 years after your most recent order and allow you to re-order parts for the duration of the mold life.

BOYI’s quick turn molding process involves using a proprietary insert and base system to produce molded parts rapidly. Depending on your project’s requirements and complexity, parts can be delivered as quickly as 5 business days!

Yes! As part of Xometry’s service, we offer DFM feedback on all projects both pre-sale as well as during final tool kickoff to ensure the project is a success.

After receiving the order, one of our manufacturing engineers reviews the statement of work. A case manager is assigned, and an appropriate manufacturing supplier is identified. A comprehensive DFM/PEG report is created and provided for approval. Upon approval, tooling and mold production is commenced. T1 samples are produced and shipped for approval. Upon approval, the remaining parts are made.

Injection molding is used across various industries, including aerospace, medical devices, consumer goods, energy, electronics, automotive, robotics, toys, and more.

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See What Our Customers Say

"BOYI has consistently impressed us with their precision in manufacturing custom OEM components. From the intricate details to the overall quality, they have exceeded our expectations. The attention to detail in their production process ensures that each part meets our specifications, contributing to the success of our final products. It's not just about getting the job done; it's about getting it done right, and BOYI has consistently delivered on that front."

Ishita Malhotra

Supply Chain Director at Precision Dynamics

"Working with BOYI has been a game-changer for our production timelines. The team's commitment to delivering on time is unmatched. In the fast-paced world of OEM manufacturing, meeting deadlines is crucial, and BOYI has proven time and again that they not only understand the urgency but also have the capability to deliver high-quality custom components within the specified timeframes. Their reliability is a key factor in our continued partnership."

Kylo James

Engineering Manager at TechInnovate Corp

"BOYI stands out as more than just a supplier; they are collaborative problem solvers. In the course of our projects, challenges inevitably arise, and BOYI has consistently demonstrated a proactive approach in finding solutions. Their engineering team engages with ours, providing valuable insights and recommendations to optimize designs for manufacturability. This collaborative spirit has not only streamlined our production processes but has also strengthened our product offerings."

Ella Perez

Procurement Manager at NexGen Innovations

"BOYI has been instrumental in our cost-effective OEM customization journey. Their ability to provide tailored solutions without compromising quality has significantly impacted our bottom line. The transparent communication regarding costs and the flexibility in adapting to our evolving needs have made them a trusted partner. BOYI doesn't just offer manufacturing services; they offer a strategic partnership that adds value to our entire product development lifecycle."

Elsie Ross

R&D Lead at InnovateTech Solutions

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