Like any factory, insert molding is swamped with an overabundance of foreign suppliers. Since insert molding is such a high-precision process for producing intricate, high-performance plastic components—i.e., medical implants, auto parts, and consumer electronics—it is of the highest importance to find a maker that will deliver precision and consistency. The following are the top 9 global insert molding makers:.

Each of the companies listed below has its own set of abilities, technical experience, and added-value services. From high-rate production to state-of-the-art materials and tool design, these producers are prepared to address any number of industry needs. Key background information is provided on each company to aid your decision. That aside, however, although this list is an excellent place to start, we recommend going to each of these companies’ websites and comparing each of their products to your project needs. This will allow you to obtain the most suitable insert molded parts at the most reasonable prices.

1. List of Global Insert Molding Manufacturers

The following table summarizes nine of the world’s finest insert molding producers. The above-mentioned companies are renowned in the industry to be one with technical superiority, production quality, and ability to serve diversified industries such as the auto, healthcare, electronics, and consumer products industries.

NO. Company Website Year Established
1 Holly Plastic Parts https://www.hollyplasticparts.com/ 2000
2 PTI https://teampti.com/ 1984
3 Crescent Industries https://www.crescentind.com/ 1946
4 FOWMOULD https://www.immould.com/ 1978
5 Spectrum Plastics https://www.spectrumplastics.com/ 1961
6 Lomont https://www.lomont.com/ 1982
7 New Concept https://www.newconcepttech.com/ 1986
8 Ferriot https://www.ferriot.com/ 1929
9 Weiss-Aug https://weiss-aug.com/ 1982

2. Top 9 Global Insert Molding Manufacturers

Insert molding is a mass production process in which plastic to combined with other products, such as metals or ceramics is making it easier to produce high-strength, high-performance parts. They are a global insert molding leader in cutting-edge solutions, leading technology, and more than four decades of experience to empower versatile customers’ requirements anywhere across the world.

Top 1: Holly Plastic Parts

Holly Plastics logo

Holly Plastic Parts is a global precision insert molding expert with markets all over the world, providing the latest plastic-metal joining technology. Holly has been a reliable partner to the automotive, medical, and consumer electronics industries since 2000. With the latest injection molding machines and in-house mold making capacity, Holly provides one-stop service from design consultancy to mass production.

Their facility boasts high-speed molding capacity and precision tool room capacity for speedy turnaround and high part consistency. Holly Plastic Parts emphasizes design-for-manufacturing (DFM) partnership and ISO-approved quality control procedures to deliver each part to demanding industry standards. They deliver to customers across North America, Europe, and Asia, with success supplying custom insert molded housings, control modules, and sensor components to international OEMs.

With its experience in mission-critical programs, the firm provides quality consistency, qualified processes, and timely services to meet regulated markets.

Website: https://www.hollyplasticparts.com/insert-injection-molding/

Year established: 2000

Location: China

Products:

  • Insert molded parts
  • Plastic housings
  • Custom tooling
  • Over-molded components

Top 2: PTI

PTI

PTI or Performance Tool and Injection is an American insert molding expert company that has been in business for nearly four decades, or in simple words, since 1984. Having nearly four decades of company experience, PTI has perfected a full-service strategy with its own in-house design, engineering, tooling, and manufacturing. PTI is an expert in insert and over-molding high-demand automotive, aerospace, medical, and industrial applications. Its plant is equipped with the latest injection moulding presses with robot automation, scalability, and duplicating quality.

PTI enjoys a competitive advantage in its vertically integrated location, where cost, lead time, and piece performance can be tightly controlled. Its engineering group works in parallel to, and at the very earliest design stage, to guarantee manufacturability and conformity to the customer. PTI is certified to IATF 16949 and ISO 13485, higher quality standards demanded by foreign original equipment manufacturers. PTI has been providing insert molding solutions to Tier 1 original equipment manufacturers, suppliers, and Class II medical device manufacturers for decades.

Website: https://teampti.com/

Year established: 1984

Location: USA

Products:

  • Insert molded parts
  • Over-molded components
  • Multi-shot molded parts
  • Custom plastic assemblies

Top 3: Crescent Industries

Crescent Industries

Crescent Industries, a seasoned custom injection molder with innovative insert molding technology, has been serving medical, defense, electronic, and industrial clients since 1946. An employee-owned company based in the US, Crescent focuses intensively on long-term relationships and high-quality manufacturing. Products range from advanced insert molding with engineered resins and metal components, and in-shop mold design and toolmaking support to final assembly of fully finished production parts.

Crescent vertically integrated manufacturing provides end-to-end project management, from prototype to validation and volume production. Crescent manufactures in an FDA-registered facility and is ISO 13485 and ITAR certified, a premier supplier to regulated markets. Insert molding at Crescent ranges from surgical instruments and implantable device components to military enclosures. As a premier supplier to top-tier OEMs for decades, Crescent delivers reliable, function-critical plastic parts to the highest industry standards on a regular basis.

Website: https://www.crescentind.com/

Year established: 1946

Location: USA

Products:

  • Insert molded parts
  • Medical device components
  • Custom tooling
  • Multi-material assemblies

Top 4: FOW MOULD

FOWMOULD logo

FOW MOULD, Ideal Group’s decades-long business partner for insert moulding and tooling solutions, has a history. It was founded in China in 1978 and has grown in the years since to be an internationally branded worldwide supplier to the automotive, electronic, home appliances, and machinery industries. FOW MOULD has been applying the most advanced design engineering with mass production from its establishment more than four decades ago to supply precision-moulded components by international standards of quality.

With in-house manufacturing capability of a 25,000 square meter factory, FOW MOULD possesses over 30 high-tonnage injection moulding machines, automatic insert loading systems, and a well-equipped mould making workshop. FOW MOULD offers turnkey solutions from part design and DFM inspection through tooling, insert moulding, and post-mould assembly. FOW MOULD is also cost-saving and lead time-managed, and thus an excellent partner for global OEMs. Its global customers are leading North American, European, and Southeast Asian multi-nationals that outsource high-precision products such as connector housing, threaded inserts, and precision brackets to FOW MOULD.

Website: https://www.immould.com/

Year established: 1978

Location: China

Products:

  • Insert molded parts
  • Plastic injection molds
  • Multi-cavity tooling
  • Over-molded components
  • Molded plastic brackets

Top 5: Spectrum Plastics

Spectrum Plastics

Spectrum Plastics Group is one of the leading US-based contract manufacturers that excels in providing higher-order polymer solutions such as high-precision insert molding. Spectrum was established in 1961 and has decades of experience supplying the medical, aerospace, and industrial markets with engineered plastic components that satisfy the most rigorous regulatory requirements and performance needs. Spectrum has more than 20 North American production facilities, offering the company size and flexibility to accommodate low-run and high-volume production programs.

Insert and over molding is one of the offerings of Spectrum, available here to be applied on surgical instruments, medical devices, catheter components, and sensor enclosures. It offers scientific molding processes, cleanrooms, and strict quality testing to levels of ISO 13485 and FDA. Its vertically integrated ability involves part design, DFM optimization, in-house tool build, and secondary post-molding activities such as laser marking and assembly.

Spectrum is renowned for its team-based engineering culture, which, together with worldwide OEMs, designs and builds projects from design through to production.

Website: https://www.spectrumplastics.com/

Year established: 1961

Location: USA

Products:

  • Insert molded parts
  • Medical device components
  • Over-molded housings
  • Custom plastic assemblies
  • Cleanroom-molded parts

Top 6: Lomont

Lomont

Lomont Molding LLC is a US-based company that specializes in plastic injection molding and has been offering world-class insert molding solutions since 1982. It is highly well-known for its engineering philosophy and offers solutions to numerous industries like agriculture, construction, healthcare, energy, and transport. It has a 100,000+ square foot facility in Iowa and over 75 injection presses with clamping forces from 28 to 3,000 tons to produce micro-inserts and structural parts.

Lomont is a world-class source of insert molded ceramics, engineered plastics, and insert molded metals for durability, as well as high performance for challenging applications. All in-house from mold design, prototyping, and CAD modeling to production is provided by the company. Value and consistency of results are achieved through ISO 9001-certified quality systems and state-of-the-art robotics. Lomont is a proven partner to OEMs needing long-term support for challenging parts such as gear housings, electrical enclosures, and medical device components.

With decades of record performance and customer-centric service, Lomont is an inaugural choice source for high-performance insert molded products made in the USA.

Website: https://www.lomont.com/

Year established: 1982

Location: USA

Products:

  • Insert molded parts
  • Structural plastic components
  • Custom tooling
  • Over-molded assemblies
  • Multi-material enclosures

Top 7: New Concept

New Concept

New Concept Technologies is one of the leading custom insert molding companies, established in 1986, specializing in producing high-performance plastic components for different industries, including automotive, consumer electronics, and medical devices. New Concept has its corporate office in the United States, offering a broad range of services from concept to finished production with the latest molding technology and a best-of-class manufacturing plant.

It is a leader in two-shot, over-molding, and insert molding processes and provides solutions wherein plastic and metal parts are combined to create durable and strong parts. New Concept works with its customers in minimizing the part designs, saving them dollars, and providing them quality parts. Its ISO 9001-certified operations guarantee high precision and consistency in each part it sends out. With over three decades of service, New Concept has established a reputation for cost, timely delivery, and customer satisfaction.

From low-volume production to high-volume manufacturing, New Concept Technologies continues to help OEMs and product designers with innovative, high-quality insert molded solutions.

Website: https://www.newconcepttech.com/

Year established: 1986

Location: USA

Products:

  • Insert molded components
  • Over-molded parts
  • Two-shot molded parts
  • Custom plastic assemblies
  • Precision engineering solutions

Top 8: Ferriot

Ferriot

Ferriot Inc. is a top custom injection molding and insert molding solution company that was established in 1929. Ferriot is a precision molding company with high quality in the automotive, medical, aerospace, to consumer goods markets for over 90 years. Ferriot has a headquarters facility in Ohio, USA, and has a world-class manufacturing facility with the latest molding technology, such as advanced multi-shot, overmolding, and insert molding.

Ferriot’s full-service, value-added solutions include volume production and tooling, and prototype and design full-cycle service. Ferriot works with customers to create complex insert molded components, such as the addition of metal, ceramic, and other material elements for increased strength and durability. Lean manufacturing process emphasizes ISO 9001 certification. Ferriot offers cost-effective, reliable, quality-oriented solutions with reliability emphasis. Among some of the world’s biggest names, Ferriot has done it all over the years, where Ferriot produced primary components in car units, medical equipment, and aeronautics parts.

Now, Ferriot is now famous today because of its technology foresight, dedication to customer delight, and ability to supply merchandise for advanced, multi-service devices.

Website: https://www.ferriot.com/

Year established: 1929

Location: USA

Products:

  • Insert molded parts
  • Multi-material components
  • Automotive system parts
  • Medical device components
  • Aerospace components

Top 9: Weiss-Aug

Weiss-Aug

Weiss-Aug, which has been operating since 1982, is a top-notch precision insert molded component manufacturer. Having United States and Parsippany, NJ facilities, Weiss-Aug provides products to multiple markets, including automotive, telecom, medical device, and consumer electronics markets. Weiss-Aug is equally renowned for the large number of material applications in molding work like metal, plastics, and ceramic materials, and hauling heavy-duty and rugged pieces that are suited for application by high-performance units.

Weiss-Aug specializes in insert molding, over molding, and high-precision multi-material molding techniques. Up-to-date machinery and skilled engineering personnel are utilized to produce superior to comparable quality and productivity. In the ISO 9001-certified manufacturing process and with a strong commitment to continuous improvement, Weiss-Aug guarantees products to specification or better to customers. Weiss-Aug maintains stable OEM relationships, providing design support, prototyping, through to end-production and assembly services.

Being an innovative solution-oriented customer firm, Weiss-Aug has been a reliable business partner for overseas manufacturers seeking specially designed insert molded components.

Website: https://weiss-aug.com/

Year established: 1982

Location: USA

Products:

  • Insert molded parts
  • Multi-material components
  • Over-molded assemblies
  • Custom plastic parts
  • High-performance mechanical components

3. Guidelines to Choose Global Insert Molding Suppliers

Choosing the appropriate insert molding supplier in the world is a critically significant decision that impacts your product quality, price, and manufacturing productivity. Below are some of the most significant things to consider while deciding on your ideal partner for your insert molding needs:

1) Experience and Expertise

Prior experience in manufacturing within the company and adequate insert molding knowledge are requirements. Choose manufacturers with a good history of performing similar projects safely. Skilled manufacturers will be more able to fulfill strict molding requirements, leading to high-quality products.

2) Technology and Capabilities

Check the company’s molding technology and equipment. World-class manufacturers upgrade to newer machines, such as multi-shot injection molding machines and computerized equipment, to provide precision and rapid turnaround. Advanced molding processes, like over-molding and two-shot molding, also indicate the technical expertise of the manufacturer.

3) Quality Certifications

Make sure the company is ISO 9001 or ISO 13485 certified, a medical device manufacturer’s industry standard. These ensure the company has strict quality control practices in place, which is better for producing insert molded parts, which are dependable and long-lasting.

4) Customization and Flexibility

Choose a maker with design support that will customize molding options to your very specific requirements. A variable maker will work with you from design to delivery, helping optimize part designs both for cost and manufacturability.

5) Global Reach and Logistics

An international manufacturer with shipping overseas experience will be well-positioned to deal with cross-border projects. That will especially be the case if you are having to outsource manufacturing or must ship goods to other regions of the world in a timely manner.

6) Customer Support and Communication

Good communication and customer service are needed at every step of the manufacturing process. Select a manufacturer that provides good, timely, and frequent communication and punctuality to meet your needs for smooth coordination. With these in mind, you can make a well-informed decision and select a global insert molding company that best meets your needs in terms of quality, innovation, and cost.

4. Conclusion

The insert molding business worldwide is at a high, and few players are leaders in innovation and quality in insert molding solutions. They are the market leaders and have been supplying safe and accurate insert molding solutions to industries. Since the demand for insert molded parts is also growing, the players are going to gain by virtue of evolving global business requirements. Whether they have to manufacture high-end multi-material components or produce by volume, they are good partners who can guarantee quality output. They have technical expertise, leading technology, and a quality focus that allows them to rule the field of insert molding.