Injection Molding Services for Custom Parts

Custom injection molding for plastic prototypes and on-demand production parts in as fast as 1 day. Request an injection molding quote today.

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Injection molding services for custom parts

Certifications ISO 9001:2015 | ISO 13485:2016 | AS9100D | IATF 16949

Injection Molding Processes

Make the move from prototyping to on-demand manufacturing for affordable, high-quality molded 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.

Additional Capabilities for Injection Molding Orders

Family and Multi-Cavity Molding

Secondary Operations

Quality and Inspections

At Flex, time was always of the esseence. Partnering with KONLIDA enabled us to achieve this agility, ultimately resulting in the best possible product.
Without them as a key partner, I believewe could not have achieved the speed required for success.

一 MR. ZHANG,FORMER LEAD SENIOR PRODUCT DESIGNER Flex

Injection Mold Tooling Options and Quality Reporting

We have two unique offers to meet your needs wherever you are in the product lifecycle. Our prototype injection molding process helps you cut product development cycles by weeks—sometimes months—and bridge to production with injection-molded 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 molding, 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.

	Prototyping	On-Demand Manufacturing
Objective	I need to validate my design at Konlida speeds. I need the flexibility to economically iterate before production.	I have on-demand production needs at Konlida speeds.
Best When	Completing design or material iterations, and assessing cost or manufacturability tradeoffs 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 finalized 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 mold capability information is required
Mold Cavities	Single	Single and multi-cavity
Mold Life	Limited (guaranteed for at least 2,000 shots)	Unlimited
Mold Storage	Stored for 18 months of inactivity	Stored for 3 years of inactivity
Mold Ownership	Upon request	Yes
Quality Documentation	Quality Inspection Report (QIR) verifies Konlida's manufacturing process controls	Scientific molding process development report In-process CMM inspection of critical dimensions, including 9 GD&T symbols Critical to Quality (CTQ) - identify up to five critical features or dimensions of importance CTQ Partial FAI: 3-part dimensional first article inspection CTQ DIR with Capability Study: 30-part dimensional capability study
Shared Features	Aluminum molds Standard lead times as fast as 7 days Tolerances of +/-0.003 in. plus resin tolerance (in./in.) Set-up fees apply to each run Consultative Design Services (CDS) Finishing Options No minimum order quantities (MOQ) Quick-turn shipping in as fast as 1 day

Injection Molding 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 molded plastics.

Thermoplastics

ABS
Acetal
Acetal Copolymer
Acetal Homopolymer/Delrin
ETPU
HDPE
LCP
LDPE

LLDPE
Nylon
PBT
PC/ABS
PC/PBT
PEEK
PEI

PETG
PMMA (Acrylic, Plexiglas)
Polycarbonate
Polypropylene
PPA
PPE/PS
PS
PSU
TPU

Thermosets

Standard silicone (30, 40, 50, 60, and 70 durometers)
Medical-grade silicone

Optical-grade silicone
Fluorosilicone (fuel and oil resistant)

Definitive Guide to Injection Molding

This complete reference guide walks you through everything from quoting, design analysis, and shipment to best practices that ensure your model is optimized for molding.

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Why Choose Us for Custom Injection Molding?

Unmatched Lead Times
Reduce your product development cycle by weeks—sometimes months—and bridge to production with injection-molded parts within days. Some injection molding orders can ship in as fast as 1 day.

Design for Manufacturing Feedback
Every quote includes real-time pricing and design analysis. We evaluate your 3D CAD and help identify any features that may pose challenges during the molding process such as difficult to machine undercuts and insufficient draft.

No Minimum Order Quantities (MOQs)
Procuring parts on demand, without MOQs, helps you manage market or demand volatility and provides a cost-effective source for bridge production, line-down emergencies, end-of-life production, or product customization.

Injection Molding Expertise
We'll work with you throughout the course of your project to help you quickly move from prototyping to production, including finishing options and inspection reporting.

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Why choose us for custom injection molding

Advantages of Injection Molding

Injection molding is plastic manufacturing process that can produce high quality parts at scale. It's typically used for low- to high-volume production but our aluminum 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 Molding Applications

Injection molding 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 Molding FAQs

How much does injection molding cost?

Because of the initial capital investment in tooling, injection molding makes sense for higher volumes of parts. Our mold cost starts at $1,495 and will vary depending on part geometry and complexity. Other factors that will impact injection molding cost are lead times and material.

Do you do production molding?

Yes, we offer a production tooling option called on-demand manufacturing. This tooling option provides several benefits: lower piece part price, multi-cavity capabilities, guaranteed tooling for the life of the project (we will cut a new tool if it wears out), and first article inspections.

What are your tolerances for molded parts?

In most cases, we can maintain a machining tolerance of +/- 0.003 in. (0.08mm) with an included resin tolerance that can be greater than but no less than +/- 0.002 in./in. (0.002mm/mm).

What is the maximum part size for injection molding?

The largest size we can support with plastic injection molding is 18.9 in. x 29.6 in. x 8 in. (480mm x 751mm x 203mm).

Additional Links and Resources

Beginner's Guide to Injection Molding

Learn what product designers must consider when designing a part for injection molding, including: warp, surface finish, stress, resin additives, and more.

Glass Transition Temperature of Polymers

Glass transition temperature (Tg) affects moldability, strength, elasticity, transparency, and more.

How to Use Mold Flow Analysis

Flow analysis helps decide gate placement, locate knit lines, and find areas where gas can get trapped.