Ever felt overwhelmed trying to pick the right plastic injection manufacturer for your next project? You’re not alone! With so many factories out there, finding a reliable partner who delivers quality on time (and within budget) can feel like searching for a needle in a haystack. Choosing the best supplier isn’t just about cost—it’s about innovation, quality control, and peace of mind for every order. Imagine what you could accomplish with a trustworthy, top-tier manufacturing partner by your side.

Curious which factories stand out from the crowd? Read on to see our expert comparison of the leading plastic injection manufacturers and discover the perfect match for your needs!

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EVCO Plastics | Manufacturing & Injection Molding Company

Product Details:
EVCO Plastics specializes in custom plastic injection molding and manufacturing, offering design, engineering, prototyping, tooling, mold building, and secondary operations. They provide solutions for large parts, medical and healthcare devices, plastic packaging, consumer products, and industrial products. Their services include contract manufacturing, metal-to-plastic conversion, thin wall packaging, and returnable packaging.

Technical Parameters:
– Plastic injection molding capabilities including large part and thin wall
– Process options: overmolding, gas assist molding, multi-shot molding, insert
– Value-added secondary operations such as UV coating and in-mold decorating/label
– Support for scientific injection molding, metrology, robotics & automation

Application Scenarios:
– Medical and healthcare device manufacturing
– Consumer and industrial plastic product production
– Plastic packaging including thin wall and returnable packaging
– Conversion from metal to plastic parts for weight and cost reduction

Pros:
– Comprehensive engineering services from prototyping to production
– Advanced molding capabilities for complex and large-scale parts
– Strong focus on design for manufacturability and material selection
– Integrated secondary operations add value and reduce supply chain complexity

Cons:
– Limited detail on material options and sizes available on main website pages
– Technical performance specifications (tolerances, capacities, etc.) are not

Innovative Plastic Injection Manufacturing

Product Details:
Full-service plastic injection molding and blow/fill/seal (BFS) manufacturing for healthcare and pharmaceutical industries, including clean room plastic manufacturing, part decoration and assembly, rapid prototyping, turnkey contract manufacturing, and logistics management.

Technical Parameters:
– Injection molding machines ranging from 10 to 3,000 tons
– BFS (Blow/Fill/Seal) and aseptic filling capabilities
– ISO 13485:2016 and 9001:2015 certified facilities
– Class 100k and 10k clean room manufacturing environments

Application Scenarios:
– Medical device and healthcare plastic components manufacturing
– Pharmaceutical packaging and drug delivery products
– Nutraceutical and food-related contract manufacturing
– Global logistics and turnkey supply chain solutions for medical products

Pros:
– Extensive experience in healthcare and pharmaceutical plastics (over 40 years)
– Comprehensive value-added services such as part decoration, assembly, and
– Global footprint with FDA-registered and ISO-certified facilities
– Strong program management and engineering support from concept to completion

Cons:
– Specialization may limit offerings outside healthcare and pharmaceutical sectors
– Complexity of global operations may require coordination across multiple sites

top 10 injection molding companies in the USA – PLAS.CO

Product Details:
Custom injection molding services including product design, rapid prototyping, tight-tolerance molding, and both low- and high-volume production for a variety of industries.

Technical Parameters:
– Expertise in tight-tolerance injection molding
– Rapid tooling and prototyping capabilities
– Over 200,000 square feet of manufacturing space
– Certified to ISO 13485 and ISO 9001 standards

Application Scenarios:
– Medical device component manufacturing
– Automotive plastic part production
– Aerospace component manufacturing

Pros:
– Specializes in complex projects with high precision requirements
– Strong medical industry expertise and regulatory compliance
– Ability to quickly transition from design to production
– Flexible capacity for small and large production runs

Custom Injection Molding Manufacturer | Nicolet Plastics | Injection …

Product Details:
Nicolet Plastics provides full-service custom plastic injection molding, including engineering and product support, additive manufacturing (3D printing in plastics and metals), and value-added operations such as assembly and post-molding services for various volumes and complex projects across multiple industries.

Technical Parameters:
– Injection molding equipment ranging from 30 to 600 tons
– Capability in tight tolerance and micro molding
– Specialized automated insert molding cells for dedicated production
– 3D printing in plastic (Carbon) and metal (Mantle) with rapid prototyping and

Application Scenarios:
– Industrial parts manufacturing
– Medical device production
– Marine and aerospace component fabrication
– Consumer product creation

Pros:
– Able to manage low-to-high-volume production efficiently
– Expertise in complex part design with tight tolerances
– Offers onshore and offshore tooling and seamless support from concept to
– Comprehensive post-molding, assembly, and additive manufacturing capabilities

Cons:
– High tooling costs associated with injection molding
– Challenges include material selection, process optimization, and mold wear

USA Plastic Injection Molder | Crescent Industries

Product Details:
Crescent Industries is a USA-based plastic injection molder providing services such as plastic injection mold design, tooling, tool transfer, custom injection molding (including insert molding and over molding), post-processing (kitting, assembly, part decoration), and automation for various industries including medical devices, military, and industrial/OEM markets.

Technical Parameters:
– Plastic injection mold design and tooling capabilities
– Custom injection molding with insert molding and over molding options
– Post-processing options: kitting, assembly, and part decoration
– Automation and robotics integration for injection molding processes

Application Scenarios:
– Medical device injection molding
– Military-grade plastic component manufacturing
– Industrial and OEM plastic parts production

Pros:
– Comprehensive end-to-end plastic injection molding solutions
– Specialization in regulated industries such as medical and military
– Capabilities for both mold design and manufacturing under one roof
– Integration of automation for high efficiency and consistency

Cons:
– Limited information about specific material types or press tonnage ranges
– Potentially higher costs for highly specialized or regulated market services

Plastic Injection Molding – Full-Service Custom Molding

Product Details:
UPM (Universal Plastic Mold) specializes in high-precision custom plastic injection molding, offering full-service solutions including design, tooling, molding, assembly, and packaging. The company produces both proprietary and custom-molded plastic components for a variety of industries.

Technical Parameters:
– Ability to mold parts from 0.1 to 40 ounces in shot size
– Supports a wide range of engineering-grade thermoplastics (ABS, polycarbonate,
– Utilizes presses ranging from 28 to 400 tons
– ISO 13485:2016 (Medical Devices) and ISO 9001:2015 certified

Application Scenarios:
– Medical device manufacturing
– Aerospace and defense components
– Consumer and commercial electronics housings
– Automotive and industrial parts

Pros:
– Comprehensive, turnkey services from design to packaged end product
– Expertise in complex, tight-tolerance plastic parts
– Strong quality assurance with ISO certifications
– Ability to handle small to large production runs

Cons:
– Primarily focused on medium to large-scale production; may not be suitable for
– Services are limited to plastic injection molding and related processes (not

Plastic Molding Manufacturer: Plastic Injection Molding | RSP – RSP Inc.

Product Details:
Custom plastic injection molding services, including support from engineering and design review to mold flow analysis, tooling design and fabrication, and precision part molding. RSP offers contract manufacturing for plastic components, supporting both prototypes and high-volume production, with the flexibility of supply chain operations in the USA, China, and Vietnam.

Technical Parameters:
– Plastic injection molding process with precision part molding
– Support for prototype and high-volume manufacturing
– Vertically integrated with additional capabilities: Metal Fabrication, Silicone
– Mold flow analysis and tooling design included in services

Application Scenarios:
– Small-run prototype fabrication for product development
– High-volume plastic part manufacturing for consumer, industrial, or medical
– Turnkey manufacturing requiring design support and final assembly
– Production scenarios requiring flexibility across US, China, or Vietnam

Pros:
– Full-spectrum support from design review to final production
– Vertically integrated services enable streamlined supply chain management
– Global manufacturing options across multiple regions to manage costs and tariffs
– Experience in transferring tools from Asia to the USA to optimize costs

Cons:
– Specific product technical specifications not detailed
– Potential complexity due to global supply chain management

ISO 13485 Certified Injection Molding Company | Plastic Injection Molding

Product Details:
Seaway Plastics offers ISO 13485 certified plastic injection molding services, including in-house tooling, plastic and liquid silicone rubber (LSR) injection molding, cleanroom molding and assembly, low- to mid-volume injection molding, and post-molding operations. The company can quickly build all-aluminum, aluminum-and-steel combination, or all-steel molds across a range of classes (Class 105 to Class 101), and handles over 700 resin types.

Technical Parameters:
– ISO 13485 certified for quality and regulatory compliance
– Can build molds ranging from Class 105 to Class 101 (from prototype to high
– Processes over 700 types of resins, including Liquid Silicone Rubber (LSR)
– Cleanroom molding and assembly capabilities

Application Scenarios:
– Medical device manufacturing (requiring cleanroom and regulatory standards)
– Aerospace and defense components
– Consumer product plastic parts
– Precision industrial equipment parts

Pros:
– Wide material versatility, including LSR and over 700 resin types
– Flexibility in tooling with rapid turnaround for various mold classes
– Comprehensive services from design and DFM to finishing/post-processing
– Cleanroom certification suitable for highly regulated industries

Cons:
– Specific production batch sizes or minimum order quantities not stated
– Complex or highly specialized projects may require additional consultation

Murray Plastics: Custom Plastic Injection Molding Company

Product Details:
Custom plastic injection molding services, including in-house plastic part design, engineering, injection mold building, and quality-controlled injection molding production. The company specializes in creating intricate and custom plastic components for diverse client needs. All manufacturing is based in Gainesville, GA, USA.

Technical Parameters:
– Over 20 years of experience in injection molding manufacturing
– Engineer-led design and engineering process for parts
– Expertise in custom mold making and tooling for plastics
– Wide range of capabilities, materials, and sizes handled

Application Scenarios:
– Production of custom plastic components for industrial clients
– Manufacturing of engineered plastic parts requiring precision and durability
– Projects needing design guidance and engineering support through the full

Pros:
– Globally competitive pricing with United States manufacturing
– Innovative, cost-effective solutions tailored to client needs
– Personable, founder-led, and down-to-earth service
– Quality guarantee with rigorous engineering and design oversight

Cons:
– No specific mention of rapid prototyping or small batch capabilities
– Services may be best suited for clients requiring custom, engineered solutions,

Plastic Injection Molding Manufacturer | EnviroTech Molded Products, Inc

Product Details:
EMP Slurry Company specializes in advanced slurry products for semiconductor manufacturing, focusing on Chemical Mechanical Planarization (CMP) processes used in wafer fabrication. Their offerings include customized slurries for oxide, tungsten, and copper CMP applications.

Technical Parameters:
– Particle size control to nanometer precision
– Slurry pH stability and adjustability
– Formulations tailored for oxide, tungsten, and copper CMP
– Inclusion of abrasives, oxidizers, and stabilizers to meet process requirements

Application Scenarios:
– Semiconductor wafer polishing in integrated circuit fabrication
– Planarization of oxide, tungsten, and copper layers during chip manufacturing
– Use in advanced node semiconductor processing
– Custom slurry development for R&D and manufacturing optimization

Pros:
– Ability to provide custom-formulated slurries for specific customer needs
– Tight control of particle size distribution ensures improved uniformity and
– Enhances yield and device performance in semiconductor production
– Offers technical support and consultation for slurry integration and process

Cons:
– Products are highly specialized and may not be suitable for applications
– Require specialized process equipment for use
– Potential sensitivity to supply chain fluctuations in advanced materials

Comparison Table

Company	Product Details	Pros	Cons	Website
EVCO Plastics	Manufacturing & Injection Molding Company	EVCO Plastics specializes in custom plastic injection molding and manufacturing	Comprehensive engineering services from prototyping to production Advanced	Limited detail on material options and sizes available on main website
Innovative Plastic Injection Manufacturing	Full-service plastic injection molding and blow/fill/seal (BFS) manufacturing	Extensive experience in healthcare and pharmaceutical plastics (over 40	Specialization may limit offerings outside healthcare and pharmaceutical	www.plastikon.com
top 10 injection molding companies in the USA – PLAS.CO	Custom injection molding services including product design, rapid prototyping,	Specializes in complex projects with high precision requirements Strong medical		plas.co
Custom Injection Molding Manufacturer	Nicolet Plastics	Injection …	Nicolet Plastics provides full-service custom plastic injection molding,	Able to manage low-to-high-volume production efficiently Expertise in complex
USA Plastic Injection Molder	Crescent Industries	Crescent Industries is a USA-based plastic injection molder providing services	Comprehensive end-to-end plastic injection molding solutions Specialization in	Limited information about specific material types or press tonnage
Plastic Injection Molding – Full-Service Custom Molding	UPM (Universal Plastic Mold) specializes in high-precision custom plastic	Comprehensive, turnkey services from design to packaged end product Expertise	Primarily focused on medium to large-scale production; may not be suitable for	www.upminc.com
Plastic Molding Manufacturer: Plastic Injection Molding	RSP – RSP Inc.	Custom plastic injection molding services, including support from engineering	Full-spectrum support from design review to final production Vertically	Specific product technical specifications not detailed Potential complexity due
ISO 13485 Certified Injection Molding Company	Plastic Injection Molding	Seaway Plastics offers ISO 13485 certified plastic injection molding services,	Wide material versatility, including LSR and over 700 resin types Flexibility	Specific production batch sizes or minimum order quantities not stated Complex
Murray Plastics: Custom Plastic Injection Molding Company	Custom plastic injection molding services, including in-house plastic part	Globally competitive pricing with United States manufacturing Innovative,	No specific mention of rapid prototyping or small batch capabilities Services	murrayplastics.com
Plastic Injection Molding Manufacturer	EnviroTech Molded Products, Inc	EMP Slurry Company specializes in advanced slurry products for semiconductor	Ability to provide custom-formulated slurries for specific customer needs Tight	Products are highly specialized and may not be suitable for applications

Frequently Asked Questions (FAQs)

How do I find reliable plastic injection manufacturers?
Start by searching online directories, attending industry trade shows, and seeking recommendations from industry contacts. Look for manufacturers with good reviews, relevant certifications, and a proven track record in producing similar products.

What should I look for when evaluating a plastic injection factory?
Check their experience, manufacturing capabilities, quality assurance processes, and production capacity. Ask for samples, visit the facility if possible, and ensure they follow international quality standards like ISO 9001 or equivalent.

How do I compare quotes from different manufacturers?
Make sure you provide the same detailed project specifications to each supplier. Compare not only price, but also lead time, material options, tooling costs, quality control measures, and after-sales support.

Why are minimum order quantities (MOQs) important?
MOQs affect your upfront investment and inventory requirements. Factories often have minimums due to tooling and setup costs, so be sure their MOQ matches your needs and budget before proceeding.

How can I ensure product quality and consistency?
Request samples, review their quality certificates, and clarify inspection processes. Consider starting with a small order, and establish good communication to address any issues quickly. Regular audits or third-party inspections can also help maintain high standards.