Spencer Plastics, Inc.
Spencer Plastics, Inc.
🇺🇸 United States, Michigan
199811-50 peopleManufacturer/WholesalerSpencer Plastics, Inc. is a premier custom injection molder and contract manufacturer headquartered in Cadillac, Michigan. Founded in 1998, the company has grown from a specialized tool-testing facility into a high-volume production partner for the automotive, recreational, and custom manufacturing industries. Operating with a workforce of 11 to 50 employees and generating approximately $7.5 million in annual revenue, the firm is recognized for its deep expertise in engineering and tooling, which allows for rapid issue resolution and mold maintenance without reliance on outside shops.
The company specializes in high-quality engineered plastic products, utilizing a wide range of materials including PP, ABS, and PC. Their comprehensive manufacturing capabilities feature press tonnages ranging from 35 to 550 tons, supporting processes such as insert molding, micro molding, and precision plastic assembly. Specific product offerings include automotive components, survey caps, shutter pins, and the proprietary Double Trouble Tip-Ups. Beyond standard production, they provide end-to-end services including concept development, rapid prototyping, CNC machining, and mold tryouts.
Spencer Plastics, Inc. maintains a strong commitment to quality and environmental standards, holding IATF 16949:2016 and ISO 14001:2015 certifications. As a domestic manufacturer with a focus on modern production techniques and skilled labor, the company serves both commercial and industrial markets, positioning itself as a versatile partner for complex plastic manufacturing and assembly needs.
OEM manufacturerOffers OEM services for customized brand manufacturing.
Own brandOwns and operates its own brands and manufacturing facilities.
Product customizationOffers full customization for design and features.
Established brandFounded in 1998, with over 20 years of industry experience.
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Products
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Recreational/Sports Market
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SPI also produces many recreational components and assemblies for outdoor enthusiasts, such as fishing paraphernalia.
Automotive Market - Engine Coolant Connectors
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SPI specializes in the use of high heat specialty Nylons and Glass Filled Reinforced PPS’s that are compounded specifically for applications which require resistance to contact with water/ethylene glycol or water/propyleneglycol at elevated temperatures.
SPI’s core applications utilizing these engineered polymers for the Automotive Industry include “Under The Hood” engine coolant connectors.
High Heat and Chemical Resistant Oil Seal components for engine assemblies.
NVH Hydromount Components for Automotive Engine and Transmission mount assemblies.
Industrial/Manufacturing Market
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SPI produces a variety of non-automotive industrial products for the manufacturing industry:
Wear-strip components for industrial cart and dolly systems
Industrial paint masking components
Monument marker caps for professional surveying
Shutter crank pins for locomotive coolant systems
Tooling, Manufacturing, and Process Engineering
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Spencer Plastics proprietary design and tooling specifications
Tooling Manufactured Locally
Progress reports and timelines are produced and provided throughout each project
APQP process implementation
Design of experiments (D.O.E.)
Root cause analysis
Continuous process and quality improvement
Specialized Services
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We offer a broad range of custom injection molding services. Our tool shop is second to none and located next door to our manufacturing facility. All the design and prototyping resources are readily available through Mesick Mold Company, as well as custom machined plastics components and assemblies.
Together, with the pride and commitment from both companies, we can bring your project from concept to prototype, through final production with speed and quality.Customers
VIBRACOUSTIC
Certifications
ISO 140012
IATF 169492
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