Struggling to find a trustworthy plastic molding manufacturer can feel overwhelming. With so many factories promising the best quality, fast turnaround, and competitive prices, how do you know which one actually delivers? Choosing the right supplier isn’t just about cutting costs—it’s about ensuring your products meet the highest standards and your deadlines are never in jeopardy. Imagine the confidence of partnering with a top-tier factory, knowing your project is in expert hands and set up for success.

Ready to discover which manufacturers truly stand out? Read on to see our top picks and find your perfect match!

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Plastic Molding Manufacturing | High Volume Plastic Injection Molding

Product Details:
Plastic Molding Manufacturing offers local manufacturing services focused on plastic injection molding. They help clients create complex plastic parts from concept to completion, with expertise in precision parts across various industries and capabilities in engineering, molding, design, tooling, and quality control. The company operates four plants with over 100 presses and specializes in applications including medical devices using ISO Class 8 cleanrooms.

Technical Parameters:
– Over 100 presses across 4 manufacturing plants
– ISO Class 8 Cleanroom capability for medical device molding
– Engineering, design, tooling, and quality control services
– Automated plastic injection molding processes

Application Scenarios:
– Medical device manufacturing requiring cleanroom standards
– Production of complex plastic parts for consumer goods
– Industrial and defense component manufacturing
– Connectors and transportation industry parts

Pros:
– Quick, efficient, and cost-effective local manufacturing solutions
– Ability to handle complex part design from concept to completion
– Expertise in stringent quality standards, especially for medical industry
– End-to-end service including engineering, design, and tooling

Cons:
– Limited specific technical details (e.g., machine tonnage, max part size)
– Potentially limited to sectors listed (may not serve all industries)

EVCO Plastics | Manufacturing & Injection Molding Company

Product Details:
EVCO Plastics offers plastic injection molding and manufacturing services, including large part molding, medical and healthcare molding, plastic packaging, consumer and industrial products, as well as metal-to-plastic conversion, prototyping, and contract manufacturing.

Technical Parameters:
– Capabilities in large part injection molding
– Expertise in secondary operations such as UV coating
– Processes offered: overmolding, multi-shot molding, insert molding, gas assist
– Robotics & automation support in manufacturing

Application Scenarios:
– Medical and healthcare device components
– Plastic packaging solutions including thin wall and returnable packaging
– Consumer and industrial product manufacturing
– Converting metal components to plastic alternatives

Pros:
– Wide range of injection molding and manufacturing processes
– Advanced engineering services including prototyping and design for
– Expertise in both standard and specialized molding techniques (e.g., LSR,
– Integration of secondary operations and automation for efficiency and

Cons:
– No specific mention of minimum/maximum part sizes or production runs
– Lack of detailed technical specifications for individual processes or machines

ISO 13485 Certified Injection Molding Company | Plastic Injection Molding

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

Technical Parameters:
– Builds all-aluminum molds, aluminum-and-steel combinations, or all-steel molds
– Processes over 700 different types of resins including Liquid Silicone Rubber
– Cleanroom molding and assembly capabilities.
– Provides Design For Manufacturability (DFM) support.

Application Scenarios:
– Medical device manufacturing requiring ISO 13485 standards.
– Aerospace and defense components.
– Consumer product plastic parts.
– Precision industrial applications requiring low-to-mid volume runs.

Pros:
– ISO 13485 certification ensures compliance with medical industry standards.
– Expertise in both thermoplastics and LSR material processing.
– Ability to rapidly build various mold classes to match project needs.
– Offers end-to-end solutions from tool design to finishing.

Cons:
– Website content does not specify maximum part or mold sizes.
– Low-to-mid volume focus may not suit ultra-high-volume production needs.

Precision Molds & Molded Products | PM Mold

Product Details:
PM Mold is a full-service mold manufacturer and plastic injection molder offering services from product development to distribution. Their capabilities include product design, engineering, custom mold making, injection molding, value-added services, and rapid prototyping using 3D printing.

Technical Parameters:
– Press sizing from 28 ton to 500 ton
– Facility size: 43,000+ sqft
– Custom molds up to 20,000 lbs
– Works with thermoplastics including ABS, Acetal, Acrylic, Nylon, Polycarbonate,

Application Scenarios:
– Automotive and aircraft interior trim manufacturing
– Electronic connector and industrial equipment parts production
– Home appliance components
– Medical, military, electrical, agricultural, and food service plastic parts

Pros:
– Over 50 years of experience and expertise in the industry
– Full-service capabilities from design to production and distribution
– On-site rapid prototyping with 3D printing using production materials and
– Ability to handle a wide range of thermoplastics and complex, high-tolerance

Cons:
– No mention of support for materials other than thermoplastics
– Specializes in injection molding, which may not suit all manufacturing needs

Plastic Injection Molding – Full-Service Custom Molding

Product Details:
Universal Plastic Mold (UPM) offers custom, large-part, high tonnage plastic injection molding services with complete manufacturing solutions including assembly, packaging, logistics, warehousing, and program management, serving clients across diverse industries.

Technical Parameters:
– Injection molding machines ranging from 240 tons to 2,000 tons
– ISO 9001:2015 certified and ISO/TS 16949 compliant quality management system
– 24/7/365 operation with over 300 employees
– Capabilities for production, assembly, packaging, warehousing, and direct

Application Scenarios:
– Manufacturing plastic parts for various industries including automotive
– Creating prototypes for new plastic products
– Turnkey plastic production including assembly and logistics for product launches
– On-site warehousing and distribution fulfillment

Pros:
– One-stop, full-service facility handling the entire product lifecycle from
– Reduces overhead, shortens time to market, and improves product quality
– Just-in-time inventory and tailored production quantities to reduce carrying
– Certified quality management ensuring consistent results

Cons:
– Focus appears to be on large/medium-sized production runs—may not be optimal
– No explicit mention of rapid prototyping technologies or support for highly

RSP, Inc.: Plastic Molding & Contract Manufacturing

Product Details:
RSP, Inc. provides custom rubber, silicone, and plastic manufacturing services specializing in the design, prototyping, and production of components and finished goods. Their product offerings include custom-molded silicone rubber, plastic injection molding, silicone keypads, membrane switches, and electromechanical assemblies.

Technical Parameters:
– Silicone molding capabilities: LSR (liquid silicone rubber) & compression
– Plastic molding features: injection molding for both high and low volume runs,
– Tolerance: Tight tolerances, high precision for custom parts
– Value-added services: Overmolding, assembly, secondary operations, rapid

Application Scenarios:
– Medical device manufacturing
– Consumer electronics (e.g., keypads, housings)
– Industrial components requiring high precision and durability
– Automotive parts and assemblies

Pros:
– Custom engineering and design support from concept to production
– Ability to handle both small and large volume production
– ISO-certified facilities ensure consistent quality
– Responsive turnaround times for prototypes and production

Cons:
– Lead times for custom tooling and production may be longer compared to
– Primarily focuses on B2B/custom projects, may not serve low-volume or

Custom Plastic Injection Molding Company | Molded Devices, Inc.

Product Details:
Molded Devices, Inc. specializes in custom plastic component manufacturing, offering injection molding, blow molding, dip molding, tube extrusion, and assembly for both medical and industrial applications. Their product line includes medical devices (such as cuffs, balloons, catheters, and single-use disposables), tubing, industrial pumps, motor components, cash dispensers, and plastic gears.

Technical Parameters:
– Clean room molding and assembly options available for sensitive applications
– Injection molding services including insert molding, over molding, and two-shot
– Tube extrusion capabilities include multi-lumen, corrugated, expandable, and
– Dip and spray coating services for specialized surface finishes and protection

Application Scenarios:
– Medical and healthcare device manufacturing requiring clean room environments
– Industrial uses such as micro-metering pumps, financial and business equipment,
– Aerospace and defense components where precision-molded plastics are vital
– Food and beverage equipment involving high-quality custom plastic parts

Pros:
– Comprehensive service offerings from product design and development through
– Ability to provide clean room manufacturing, meeting stringent healthcare and
– Expertise in a wide range of molding and extrusion techniques for complex
– Multiple facility locations across the US enabling responsive support and

Cons:
– Specific technical datasheets and detailed performance specifications are not
– May require direct consultation to fully ascertain material options and

Injection Mold Design and Manufacturing | Xcentric

Product Details:
Xcentric Mold & Engineering (now part of Quickparts) provides plastic injection molding and associated manufacturing services, including rapid prototyping, bridge and production injection molding, mold making, CNC machining, and 3D printing for a wide range of industries.

Technical Parameters:
– Offers prototype, bridge, and production injection molding tools
– Utilizes latest CNC machining and additive manufacturing (3D printing)
– Supports a complete list of in-stock polymers and CNC materials
– Provides rapid prototyping systems to shorten production cycles

Application Scenarios:
– Medical device and equipment manufacturing
– Industrial components and custom technical parts
– Aerospace component evaluation and pre-production testing
– Consumer products, automotive, and defense industry applications

Pros:
– Comprehensive suite of on-demand manufacturing services from prototype to
– Quick turnaround with advanced rapid prototyping and manufacturing systems
– US-based, in-house production and quick-turnaround capabilities
– Flexible design options supported by detailed design resources and material

Cons:
– No explicit mention of high-volume production specialization; focus appears to
– No detailed technical tolerances or limitations specified on the page

Murray Plastics: Custom Plastic Injection Molding Company

Product Details:
Murray Plastics offers custom plastic injection molding services, including in-house design, engineering, injection mold building, and the production of intricate plastic components. They have a state-of-the-art facility and over 20 years of manufacturing experience.

Technical Parameters:
– Custom plastic injection molding using advanced techniques
– In-house design and engineering support
– Experienced mold makers with decades of experience
– Ability to work with a wide variety of materials and sizes

Application Scenarios:
– Manufacturing of custom plastic parts for various industries
– Projects requiring engineered plastic components
– Solutions where United States manufacturing is preferred

Pros:
– Precision, innovation, and high quality in production
– Globally competitive pricing
– Made in the USA with personable, founder-led service
– Expertise in a range of capabilities, materials, and sizes

Cons:
– Limited information on international manufacturing options
– No detailed list of supported plastic materials or maximum production capacities

Plastic Mold Manufacturing: A Comprehensive Guide – ACE Group

Product Details:
ACE offers precision-engineered plastic molds for producing plastic parts and components. These molds are custom-designed to meet diverse industry needs and are made from high-quality materials like steel or aluminum.

Technical Parameters:
– Design includes detailed blueprints outlining cavity/core dimensions, gating
– Molds fabricated using CNC (Computer Numerical Control) machines for high
– Material options for molds include high-quality steel or aluminum, selected
– Rigorous quality assurance procedures, including dimensional accuracy checks

Application Scenarios:
– Automotive industry component production
– Consumer electronics manufacturing
– Production of various precision plastic parts across different industries

Pros:
– Expertise in precision design, planning, and prototyping for customized mold
– Use of high-quality materials and advanced CNC machining ensures durability and
– Strict quality assurance throughout manufacturing process for consistent,
– Flexible and customizable solutions with efficient lead times and

Cons:
– No specific mention of potential limitations regarding mold complexity or size.
– Turnaround time and cost may vary based on project requirements (implied, not

Comparison Table

Company	Product Details	Pros	Cons	Website
Plastic Molding Manufacturing	High Volume Plastic Injection Molding	Plastic Molding Manufacturing offers local manufacturing services focused on	Quick, efficient, and cost-effective local manufacturing solutions Ability to	Limited specific technical details (e.g., machine tonnage, max part size)
EVCO Plastics	Manufacturing & Injection Molding Company	EVCO Plastics offers plastic injection molding and manufacturing services,	Wide range of injection molding and manufacturing processes Advanced	No specific mention of minimum/maximum part sizes or production runs Lack of
ISO 13485 Certified Injection Molding Company	Plastic Injection Molding	Seaway Plastics offers ISO 13485 certified injection molding services,	ISO 13485 certification ensures compliance with medical industry standards	Website content does not specify maximum part or mold sizes. Low-to-mid volume
Precision Molds & Molded Products	PM Mold	PM Mold is a full-service mold manufacturer and plastic injection molder	Over 50 years of experience and expertise in the industry Full-service	No mention of support for materials other than thermoplastics Specializes in
Plastic Injection Molding – Full-Service Custom Molding	Universal Plastic Mold (UPM) offers custom, large-part, high tonnage plastic	One-stop, full-service facility handling the entire product lifecycle from	Focus appears to be on large/medium-sized production runs—may not be optimal	www.upminc.com
RSP, Inc.: Plastic Molding & Contract Manufacturing	RSP, Inc. provides custom rubber, silicone, and plastic manufacturing services	Custom engineering and design support from concept to production Ability to	Lead times for custom tooling and production may be longer compared to	www.rspinc.com
Custom Plastic Injection Molding Company	Molded Devices, Inc.	Molded Devices, Inc. specializes in custom plastic component manufacturing,	Comprehensive service offerings from product design and development through	Specific technical datasheets and detailed performance specifications are not
Injection Mold Design and Manufacturing	Xcentric	Xcentric Mold & Engineering (now part of Quickparts) provides plastic injection	Comprehensive suite of on-demand manufacturing services from prototype to	No explicit mention of high-volume production specialization; focus appears to
Murray Plastics: Custom Plastic Injection Molding Company	Murray Plastics offers custom plastic injection molding services, including	Precision, innovation, and high quality in production Globally competitive	Limited information on international manufacturing options No detailed list of	murrayplastics.com
Plastic Mold Manufacturing: A Comprehensive Guide – ACE Group	ACE offers precision-engineered plastic molds for producing plastic parts and	Expertise in precision design, planning, and prototyping for customized mold	No specific mention of potential limitations regarding mold complexity or size	www.ace-mold.com

Frequently Asked Questions (FAQs)

What should I look for when evaluating a plastic molding manufacturer?
Focus on the manufacturer’s experience, certifications, quality control processes, equipment, and ability to meet your production volume needs. It’s also important to consider their communication skills and responsiveness.

How can I verify a manufacturer’s quality standards?
Ask to see their certifications, such as ISO 9001, and request samples of previous work. You can also ask for references from other clients or schedule an on-site visit to review their quality assurance processes.

What factors influence the overall cost when choosing a plastic molding supplier?
Key factors include tooling and mold costs, material selection, production volume, lead times, and shipping logistics. Be sure to request a detailed quote so you can compare the true costs from different suppliers.

Is it better to work with a local or overseas plastic molding manufacturer?
Local manufacturers offer easier communication, faster shipping, and easier on-site visits, but may cost more. Overseas manufacturers can be more cost-effective for large orders, but consider potential challenges with lead times, quality control, and communication.

How do I know if a factory can handle my specific project requirements?
Discuss your project details in depth, including part design, materials, tolerances, and order quantity. Ask if they’ve completed similar projects before, and request proof or samples to confirm their capability to meet your specifications.