Ever felt overwhelmed by the sheer number of plastic injection mold manufacturers out there? Finding the right one can feel like searching for a needle in a haystack—and choosing the wrong factory could mean delays, high costs, or quality issues. But imagine partnering with a reliable manufacturer who delivers exactly what you need, on time, every time. The benefits? Better products, fewer headaches, and peace of mind. Ready to discover the top factories and make your best choice?

Let’s dive in!

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EVCO Plastics | Manufacturing & Injection Molding Company

Product Details:
EVCO Plastics offers comprehensive plastic injection molding and manufacturing services, including engineering, tooling, mold building, prototyping, and contract manufacturing. Their capabilities span specialized molding processes (such as overmolding, multi-shot molding, insert molding, liquid silicone rubber molding, and gas assist molding), as well as secondary operations and solutions for various industries including medical, packaging, consumer, and industrial products.

Technical Parameters:
– Plastic injection molding (various methods: overmolding, multi-shot, insert
– In-mold decorating and labeling, molded-in color
– Tooling and mold building with scientific injection molding and metrology
– Automation and robotics integration in manufacturing processes

Application Scenarios:
– Medical and healthcare device components
– Plastic packaging solutions (including thin wall and returnable packaging)
– Large plastic parts for industrial and consumer products
– Metal-to-plastic component conversions

Pros:
– Comprehensive service from engineering design to final manufacturing under one
– Expertise in advanced and specialized molding technologies
– Ability to handle a wide range of industries and part sizes, including large
– Emphasis on environmental sustainability and early supplier involvement

Cons:
– No specific technical parameters (e.g., machine tonnage or part size limits)
– Potential complexity in process selection due to broad service offerings

Top 10 Plastic Injection Mold Companies in the U.S. – IndustrySelect

Product Details:
Plastic injection molds and molded products for industries such as beauty & cosmetics, food & beverage, pharmaceuticals, automotive (interior, exterior, powertrain parts), appliances, medical devices, aerospace and defense, electronics, packaging, towel and napkin dispensers, and military aircraft components. Some companies also offer mold prototyping, tool design, low-volume runs, product development, and custom solutions.

Technical Parameters:
– Use of injection and blow molding techniques
– Capabilities for multi-cavity and precision molds
– Advanced processes including pressure monitoring, laser scanning, and mold flow
– In-house design teams and engineering support for customized and specialized

Application Scenarios:
– Manufacturing of automotive components such as car seats, powertrain, and
– Production of packaging for cosmetics, pharmaceuticals, food & beverages
– Creation of medical device and defense/aerospace components
– Low-volume specialty production and custom commercial product development, such

Pros:
– Emphasis on domestic production ensures supply chain resilience and faster
– Broad specialization across industries allows for diverse application support
– Ability to create highly customized, precise molds including multi-cavity and
– Availability of value-added services like prototyping, tool design, and

Cons:
– Sector is relatively small and specialized with limited number of US-based
– Main focus on the domestic market may limit international reach or market

Custom Injection Molding Manufacturer | Nicolet Plastics | Injection …

Product Details:
Nicolet Plastics provides full-service custom plastic injection molding, including low-to-high-volume production, engineering and product support, value-added operations such as assembly, and additive manufacturing (3D printing in both plastic and metal). They serve a range of industries including industrial, medical, marine, aerospace, and consumer products.

Technical Parameters:
– Injection molding equipment ranging from 30 to 600 tons
– Specialized automated insert molding cells
– Tight tolerance and micro molding capabilities
– 3D printing in plastics (Carbon) and metals (Mantle), with comprehensive

Application Scenarios:
– Industrial components
– Medical devices
– Marine and aerospace parts
– Consumer product manufacturing

Pros:
– Supports both low and high-volume production runs
– Offers engineering, tooling, and prototype support with design for
– Provides value-added operations such as assembly, CNC machining, welding, pad
– Rapid prototyping and production with advanced 3D printing (plastic and metal)

Cons:
– High tooling costs associated with injection molding
– Potential challenges with material selection and process optimization

Plastic Injection Molding – Full-Service Custom Molding

Product Details:
Universal Plastic Mold (UPM) offers custom and large part plastic injection molding services with full-service program management, assembly, packaging, warehousing, logistics, and product distribution. UPM operates as a one-stop facility capable of handling all aspects of plastic manufacturing from concept to delivery.

Technical Parameters:
– Injection molding machines ranging from 240 tons to 2,000 tons
– 24/7/365 operation with over 300 employees
– ISO 9001:2015 certified and ISO/TS 16949 compliant quality management systems

Application Scenarios:
– Manufacturing of large and custom plastic parts for industrial clients
– Product prototyping and development for new products
– High-volume production runs for automotive and consumer goods
– Full-service logistics, assembly, packaging, and direct shipping solutions

Pros:
– All-in-one facility handling production, assembly, packaging, warehousing, and
– Comprehensive program management and logistics services for streamlined
– Just-in-time (JIT) inventory strategies to reduce overhead and improve ROI
– Certified quality management systems ensuring consistent product quality

Cons:
– Focus appears to be on larger and high-volume projects, which may not suit very
– Technical parameters detailed primarily for machine tonnage, with limited

USA Manufacturer | Custom Injection Molding & CNC Machining | MSI

Product Details:
MSI Mold offers custom plastic injection molded parts and precision CNC machined metal and plastic parts, all manufactured in-house in the USA. They provide end-to-end services including design consultation, prototyping, tooling, production, and quality assurance for custom part fabrication. The company supports orders from 100 to 100,000 units and builds all customer injection molds in-house, with rapid lead times and an unlimited tooling life warranty.

Technical Parameters:
– In-house manufacturing: all tooling and parts made internally at USA facility
– Custom part orders from 100 to 100,000 units
– Tooling lead times ranging from 10 days to 12 weeks
– Precision CNC machining including 3 & 4 axis milling, turning, and CMM

Application Scenarios:
– Production of custom plastic or metal components for various industries
– Rapid prototyping for time-sensitive projects
– Small to mid-volume custom part manufacturing
– Projects requiring ITAR compliance and ISO 9001 certified manufacturing

Pros:
– Single-source responsibility for quality and delivery
– ITAR registered and ISO 9001 certified facility
– Free engineering support including design and material selection
– Unlimited tooling life warranty for in-house manufactured molds

Cons:
– Specializes in small to mid-volume production; may not suit very high-volume
– All manufacturing is USA-based, which could involve higher costs compared to

ISO 13485 Certified Injection Molding Company | Plastic Injection Molding

Product Details:
Seaway Plastics Engineering offers ISO 13485 certified plastic injection molding, including in-house mold designing and tooling, plastic and liquid silicone rubber (LSR) injection molding, cleanroom molding and assembly, low-to-mid volume injection molding, and post-molding operations.

Technical Parameters:
– Experience processing over 700 different types of resins, including Liquid
– Mold construction options: all-aluminum, aluminum-and-steel combinations, or
– Clean room molding and assembly capabilities
– Support for low-to-mid volume injection molding

Application Scenarios:
– Medical device manufacturing (ISO 13485 certified)
– Aerospace and defense components
– Consumer product parts
– Precision industrial applications

Pros:
– Quick mold building with multiple material options for molds
– Decades of experience in diverse resin processing
– Offers cleanroom molding and assembly for high-purity requirements
– Provides complete Design for Manufacturability (DFM) support

Cons:
– Primary focus appears to be on low-to-mid volume production, which may not suit
– Limited information on maximum part size or tonnage available

Custom Injection Molding – Pioneer Plastics

Product Details:
Pioneer Plastics offers custom injection molding services for creating plastic products, specializing in collectible display cases, containers, and a variety of household, scientific, and specialized items.

Technical Parameters:
– Custom injection molding of plastic products
– Manufacturing capabilities for both display cases and functional containers
– Products made in the USA

Application Scenarios:
– Display and protection of collectibles such as diecast models, sports
– Packaging for food items and scientific lab supplies
– Household organization and storage solutions

Pros:
– Veteran-owned, American-made quality
– Wide variety of specialized and custom product options
– UV protection and retail packaging available for display cases

Cons:
– Technical specifications for injection molding capabilities are not explicitly
– Limited information on lead times or minimum order quantities

Plastic Injection Molding | Custom Plastic Molding | Made in USA

Product Details:
Custom plastic injection molding and manufacturing services, including in-house assembly, prototyping, tooling, screen printing, and pad printing. Can produce parts from a variety of thermoplastics and engineered resins, and handle both small and large production runs, as well as reshoring existing products to the USA.

Technical Parameters:
– Can manufacture using a variety of thermoplastics and engineered resins
– 650 Ton Dima Plastic Molding Machine available
– In-house machine shop for mold making, repair, and maintenance
– State-of-the-art screen and pad printing equipment, capable of printing on

Application Scenarios:
– Agricultural products
– Kitchenware and kitchen products
– Toys, tools, auto parts, home and office products
– Promotional products such as signs, placards, auto tags, campaign signs, flying

Pros:
– High quality, custom manufacturing at low cost
– End-to-end services including product design assistance, project management,
– Made in the USA: short lead times, quality assurance, and IP security
– Ability to accommodate both small and large volume orders; rapid reshoring

Cons:
– Limited detail on maximum production volume and supported materials
– Location-specific: Facility is in South Georgia, so accessibility may be a

Plastic Molding Manufacturing | High Volume Plastic Injection Molding

Product Details:
Plastic Molding Manufacturing (PMM) provides local, cost-effective, and efficient plastic injection molding services, assisting customers from concept to completion in creating complex parts. Their capabilities include engineering, design & tooling, and quality assurance, supporting multiple industries with precision-manufactured components. They operate with over 100 presses across four plants and feature specialized cleanroom manufacturing for medical devices.

Technical Parameters:
– Over 100+ injection molding presses
– 4 manufacturing plants
– ISO Class 8 Cleanroom for medical device manufacturing
– Support for complex part design and product optimization

Application Scenarios:
– Medical device manufacturing (cleanroom environments)
– Consumer products
– Industrial components
– Defense and transportation sector parts

Pros:
– Local and cost-effective manufacturing solutions
– Quick and efficient service from concept to completion
– Expertise in precision molding across multiple industries
– Strict quality standards including ISO Class 8 Cleanroom for medical devices

Cons:
– Limited technical specifications/details available on standard product
– Specialized cleanroom capabilities appear focused mainly on medical device

Custom Plastic Injection Molding Company | Molded Devices, Inc.

Product Details:
Molded Devices, Inc. (MDI) offers custom plastic injection molding, blow molding, dip molding, tube extrusion, and engineering services for various markets including medical/healthcare, industrial & energy, and aerospace & defense. Their product portfolio includes medical devices (catheters, cuffs, balloons, single-use disposables), industrial equipment components (plastic gears, pumps, motors), and tubing/fittings.

Technical Parameters:
– Capabilities in injection molding, blow molding, dip molding, tube extrusion,
– Clean room molding, assembly, and packaging for medical-grade products
– Advanced techniques: insert, over, two-shot molding; multi-lumen and corrugated

Application Scenarios:
– Medical devices such as catheters, endotracheal tubes, infusion pumps, and
– Industrial equipment, including cash dispensers, food and beverage machinery,
– Aerospace and defense component manufacturing

Pros:
– Comprehensive suite of plastic processing services under one provider
– Expertise in specialized medical molding, including clean room facilities
– Custom engineering and product development support for new and complex

Cons:
– Potential complexity in service offering may require precise project scoping
– Some applications (e.g., aerospace/defense) may have specific regulatory or

Comparison Table

Company	Product Details	Pros	Cons	Website
EVCO Plastics	Manufacturing & Injection Molding Company	EVCO Plastics offers comprehensive plastic injection molding and manufacturing	Comprehensive service from engineering design to final manufacturing under one	No specific technical parameters (e.g., machine tonnage or part size limits)
Top 10 Plastic Injection Mold Companies in the U.S. – IndustrySelect	Plastic injection molds and molded products for industries such as beauty &	Emphasis on domestic production ensures supply chain resilience and faster	Sector is relatively small and specialized with limited number of US-based	www.industryselect.com
Custom Injection Molding Manufacturer	Nicolet Plastics	Injection …	Nicolet Plastics provides full-service custom plastic injection molding,	Supports both low and high-volume production runs Offers engineering, tooling,
Plastic Injection Molding – Full-Service Custom Molding	Universal Plastic Mold (UPM) offers custom and large part plastic injection	All-in-one facility handling production, assembly, packaging, warehousing, and	Focus appears to be on larger and high-volume projects, which may not suit very	www.upminc.com
USA Manufacturer	Custom Injection Molding & CNC Machining	MSI	MSI Mold offers custom plastic injection molded parts and precision CNC	Single-source responsibility for quality and delivery ITAR registered and ISO
ISO 13485 Certified Injection Molding Company	Plastic Injection Molding	Seaway Plastics Engineering offers ISO 13485 certified plastic injection	Quick mold building with multiple material options for molds Decades of	Primary focus appears to be on low-to-mid volume production, which may not suit
Custom Injection Molding – Pioneer Plastics	Pioneer Plastics offers custom injection molding services for creating plastic	Veteran-owned, American-made quality Wide variety of specialized and custom	Technical specifications for injection molding capabilities are not explicitly	www.pioneerplastics.com
Plastic Injection Molding	Custom Plastic Molding	Made in USA	Custom plastic injection molding and manufacturing services, including in-house	High quality, custom manufacturing at low cost End-to-end services including
Plastic Molding Manufacturing	High Volume Plastic Injection Molding	Plastic Molding Manufacturing (PMM) provides local, cost-effective, and	Local and cost-effective manufacturing solutions Quick and efficient service	Limited technical specifications/details available on standard product
Custom Plastic Injection Molding Company	Molded Devices, Inc.	Molded Devices, Inc. (MDI) offers custom plastic injection molding, blow	Comprehensive suite of plastic processing services under one provider Expertise	Potential complexity in service offering may require precise project

Frequently Asked Questions (FAQs)

How do I assess the quality of a plastic injection mold manufacturer?
Start by checking their certifications (like ISO 9001), ask for sample products, and request references from past clients. Review their portfolio and look for consistency in results. Visiting their factory, if possible, gives direct insight into their capabilities and quality control processes.

What information should I provide to get an accurate quote?
Share detailed CAD drawings or product samples, specify materials, estimated order quantity, required lead times, and expected product tolerances. The more precise your information, the more accurate the pricing and timeline you’ll receive.

Are there minimum order quantities (MOQs) with most manufacturers?
Yes, most manufacturers have MOQs to justify setup and production costs. These can vary widely based on the complexity of the mold and the product. Always ask upfront about MOQs to ensure they can accommodate your project size.

How can I verify a factory’s manufacturing capabilities?
Request a virtual or in-person factory tour, ask for machinery lists, and inquire about key staff experience. Review samples of similar projects they’ve completed, and always check for up-to-date certifications and testing equipment.

What should I consider when comparing manufacturers from different countries?
Consider factors like communication, production lead times, shipping costs, language barriers, intellectual property protection, and after-sales support. It’s essential to weigh the price difference against potential risks and benefits for your specific needs.