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Last updated: January 2026
This directory lists 92 plastic machining companies across the United States, from specialty shops handling high-performance polymers to large-volume producers of commodity plastics.
Buyers engage these suppliers to solve critical challenges such as achieving extremely tight tolerances on intricate fluidic components, manufacturing optical-quality lenses or windows with minimal haze and tool marks, or producing robust, chemically inert parts for harsh environments. Success hinges on a supplier's deep understanding of material memory, thermal expansion coefficient, and precise control over cutting parameters to prevent melting or deformation.
The plastic machining landscape includes highly specialized micromachining firms focusing on miniature components, large-format shops capable of handling massive plastic sheets or blocks, and generalists with broad capabilities. Key differentiators include their focus on specific plastic families (e.g., fluoropolymers, polyimides), their volume capacity from prototyping to high-volume production, and their value-added services like polishing, bonding, or assembly.
To effectively engage these suppliers, buyers should prepare detailed CAD models (preferably STEP or IGES), complete material specifications including specific grades (e.g., Ultem 1000, Delrin AF), critical-to-function dimensions with precise tolerance callouts, and any required post-machining treatments like stress relief annealing. Clearly communicating the end-use application helps suppliers recommend optimal processes and material handling.
A significant trend in plastic machining is the growing demand for high-performance engineering plastics like PEEK, Ultem, and PTFE, driven by increasing application requirements in medical, aerospace, and semiconductor industries. This shift necessitates suppliers with advanced tooling, specialized cooling systems, and deep material science knowledge to machine these challenging materials without introducing internal stresses or compromising material properties.
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92 companies nationwide
Advanced Plastiform, Inc. specializes in custom plastic parts manufacturing, offering thermoforming, injection molding, and precise CNC & robotic trimming services. Established in 1988, the company provides high-quality, cost-effective solutions for diverse industries, ensuring accurate part dimensions and value-added assembly.
Based in West Des Moines, IA, All-State Industries, Inc. custom manufactures nonmetallic industrial components for OEMs. They specialize in precision machined plastics, offering custom-engineered solutions. Capabilities also include die cutting, thermoforming, and open cast urethane molding for plastic and rubber parts.
Based in Columbus, OH, American Plastic Distributors specializes in custom plastic fabrication and thermoforming services. They provide laser engraving and produce custom retail displays, plastic furniture, and signage. The company serves diverse manufacturing needs and offers stock plastic materials.
American Prototype & Production, Inc. offers precision machining services for science and industrial applications. Based in San Carlos, CA, they specialize in manufacturing components for instrumentation, R&D, semiconductor capital equipment, and medical devices. They provide prototyping and production, leveraging over 30 years of experience.
Based in New Hope, MN, Ardel Engineering specializes in plastic machining, offering durable, high-quality machined Delrin components. The company possesses extensive experience working with Delrin, serving clients across various industrial sectors. They provide precision manufacturing solutions for custom plastic part requirements.
Atlas Fibre is a US-based fabricator and supplier of thermoset composites, offering extensive plastic machining services. The company utilizes over 65 CNC milling and turning machines, including Swiss capabilities, for custom fabricated parts. They maintain a vast inventory of thermoset materials and provide advanced plastic machining solutions.
Austin Plastics & Supply, Inc. in Austin, TX, custom fabricates plastics. They specialize in CNC machining, cutting, drilling, and engraving precision parts and POP displays from acrylic, polycarbonate, and PVC. Serving Electrical, Healthcare, Manufacturing, and Technology industries.
Automation Plastics Corporation, based in Aurora, OH, is an ISO 9001:2015 certified manufacturer. They specialize in custom thermoplastic injection molding and precision plastic machining, offering high-volume production of tight tolerance functional components and heavy wall parts. Their capabilities include automation, assembly, and engineering support for diverse projects.
Based in Salt Lake City, UT, Biomerics is a contract manufacturing partner specializing in polymer and metal components. They provide end-to-end solutions, from in-house polymer custom compounding to finished medical devices, for complex interventional components in the medical industry.
Boedeker Plastics Inc. provides custom plastic machining services, specializing in high-performance plastics and composite materials. Operating an ISO 9001-certified machine shop, they utilize state-of-the-art CNC equipment for precision components. They offer a complete range of plastic fabrication capabilities, from prototyping to high-volume production for industrial clients.
Based in Elkhorn, WI, Brogan & Patrick Mfg.Corp. provides precision CNC machining services with a specialization in plastics. The company offers CNC plastic turning, CNC plastic machining, and tight tolerance machining for various plastic materials, including acetal, to meet specific quality and specification requirements.
C&H Machine, Inc. is an AS9100 and ITAR certified precision manufacturing facility in Escondido, CA. They offer full-service milling, turning, EDM, welding, and assembly, including specialized Acetal machining services for high-performance components. Serving aerospace, electronics, and other industries, they fulfill both short and production-run needs.
Based in Irvine, CA, California Plastics provides precision CNC machining, plastic fabrication, and assembly services for diverse industries. They specialize in plastic welding, vacuum forming, bonding, polishing, and heat bending. The company serves the medical, semiconductor, aerospace, defense, automotive, and industrial sectors.
Based in Temecula, CA, CNC Manufacturing is an industrial machine shop providing high-precision CNC machining services. They can tackle most aerospace-grade materials, including most plastics, alloys, titanium, and stainless steel. The company primarily serves aerospace and military sectors, operating under ISO 9001:2015 quality standards.
Advanced Industrial, based in Mooresville, NC, specializes in CNC machining high-performance plastic and aluminum components. Their 20,000 sq ft facility features 14 CNC mills and 8 CNC lathes, producing precision parts from materials like PEEK, Ultem, and Acetal for industrial clients since 1995.
Based in Alton, IL, Cope Plastics provides comprehensive plastic fabrication services, featuring one of the U.S.'s largest capability sets for industrial and commercial customers. They also distribute performance plastics. This family and woman-owned company has been operating since 1946.
Based in Woodlake, CA, Country Plastics, Inc. specializes in precision plastic machining, fabrication, and assembly services. Since 1986, they provide high-quality custom plastic parts to various industries, utilizing materials such as Acrylic, ABS, Nylon, Polycarbonate, UHMW, and PEEK.
Based in Laguna Hills, CA, Cutting Edge Plastics specializes in custom and precision plastic fabrication. They offer CNC-cut acrylic, medical device test fixtures, and robotics components for diverse residential, commercial, and industrial applications, partnering with innovators like SpaceX and Medtronic.
Based in Frisco, TX, Davion Manufacturing, LLC is a precision CNC machining company. They specialize in CNC machining services for diverse materials, prominently featuring plastics, aluminum, and specialty alloys. Their capabilities include CNC milling, turning, Swiss, and 5-axis machining, delivering precision parts from prototypes to production runs.
Ehren-Haus Industries, based in Fort Mill, SC, offers custom plastic fabrication, machining, and thermoforming services. They specialize in CNC machining, plastic welding, and vacuum forming for engineering-grade plastics, including Acetal, UHMW, and ABS. The company serves medical, automotive, and industrial sectors with prototype and production capabilities.
Ensinger specializes in providing custom CNC machined plastic parts and prototypes, leveraging a comprehensive range of high-performance engineering plastics. Based in Putnam, CT, they offer precision manufacturing services from design and development through to finished components, ensuring quality and tight tolerances for various industrial applications.
Based in Tempe, AZ, Foresight Technologies specializes in engineered plastic machining using high-performance materials such as Polypro, PVC, PPS, Vespel, and Torlon. They manufacture high-purity components and chemical distribution systems for the semiconductor industry.
Genesis Medical Plastics is a vertically integrated medical device manufacturer. They specialize in converting implantable PEEK and other medical polymers, offering precision machining, injection molding, stock shapes, and film. Serving the medical and life science industries, the company is ISO 13485 certified and FDA registered.
Based in Gerald, MO, JC Finley specializes in custom plastic fabrication and machining, including Delrin. With over 35 years of experience, they offer CNC machining, laser cutting, bending, and forming for various plastic materials. They provide tailored solutions for mass production or single units.
Based in Alameda, CA, KAD Models provides prototype to production precision machining and quick-turn silicone molding services. The company focuses on helping clients bring product ideas to life through custom manufacturing solutions. KAD Models also offers a Pay It Forward Prototype Program for designs with a good cause.
Based in Morgan Hill, CA, KAL Machining, Inc. provides precision CNC machining services for both plastics and metals. Capabilities include CNC milling, turning, Swiss, and 5-axis machining. They process engineering plastics like PEEK, ULTEM, and Delrin, serving medical, aerospace, defense, and semiconductor industries with custom components.
Laminated Plastics utilizes state-of-the-art CNC equipment to produce highly precise and intricate parts and components. They specialize in machining a wide range of plastics, offering custom fabrication services for diverse industrial applications. The company focuses on delivering high-quality, custom-machined plastic solutions.
Marver Med, based in Stoughton, MA, has over 75 years of experience in precision machining metal and plastic parts. Specializing in CNC Swiss-Screw machining, the company produces micro-precision and conventional components. They serve the medical device, defense, and aerospace industries, adhering to rigorous tolerances and ISO 13485:2016 standards.
Based in San Marcos, CA, MGM Plastics is a family-owned company established in 1980. They offer plastic fabrication and machining services, including CNC routing, for custom parts and products. Serving diverse industrial customers, from store start-ups to Fortune 500 companies, MGM Plastics focuses on quality and on-time delivery.
Based in Shelton, CT, Modern Plastics supplies high-performance medical-grade plastics and precision stock shapes. They offer custom in-house fabrication services, including precision plastic cutting, complemented by material distribution for industrial, medical, and aerospace clients. The company holds ISO 9001:2015, AS9100D, and ISO 13485:2016 certifications.
Based in Bensalem, PA, Northeast Plastics offers comprehensive CNC plastic machining and fabrication services. They specialize in high-performance engineering plastics, including acrylic, polycarbonate, HDPE, Delrin, and nylon, available in sheets, rods, and tubes. The company supports diverse B2B industries such as aerospace, medical, and industrial applications.
Based in Santa Cruz, CA, Ocean Plastic Products, Inc. provides plastic fabrication and design services to the Bay Area since 1985. Operating as a CNC shop, they process diverse sheet materials including plastic, plywood, MDF, laminate, aluminum, copper, and carbon fiber for commercial clients.
Osborne Industries specializes in advanced CNC plastic machining, delivering highly accurate results for various industrial requirements. They focus on maintaining close tolerances for dimensions and properties, ensuring a perfect fit and consistent quality for their clients' projects.
Based in Santa Clara, CA, Piranha Plastics LLC offers rapid CAD design, prototyping, CNC machining, and injection molding services. They provide comprehensive plastic production capabilities, alongside developing and manufacturing proprietary colorant dispensing and single-use pump systems for various industrial applications.
Based in Long Beach, CA, Plasidyne Engineering & Manufacturing, Inc. offers precision plastic machining and processing services, specializing in PTFE and other plastics. Established in 1969, they manufacture high-quality, custom-machined and compression-molded parts for diverse industries including aerospace, automotive, medical, and industrial markets.
Plastech Tooling specializes in comprehensive manufacturing services, including production machining, plastic injection molding, and mold making. They offer flexibility in material selection for diverse manufacturing processes, along with prototype machining. This allows for realistic part testing to ensure form, fit, and functional quality before full production.
Plastex Manufacturing LLC, based in Hutto, TX, provides custom plastics manufacturing, fabrication, and repair services. They process diverse materials like HIPS, ABS, PP, and PC/Lexan to create industrial components, including fume hoods, tanks, and lab equipment. Services also feature contract design, assembly, and order fulfillment.
Based in Houston, TX, PlasTex Precision Manufacturing specializes in CNC plastic machining for production and prototype runs. They work with materials like PEEK, Delrin, Teflon, UHMW, HDPE, Nylon, and PVC. The company also provides quick turn services for emergencies and expert material selection assistance for various applications.
Plastic & Metal Center Inc. specializes in precision CNC machining and fabrication services for both plastic and metal components. Based in Laguna Hills, CA, their capabilities include turning, milling, routing, water jet, and laser cutting. They serve a diverse range of industries, including aerospace, defense, medical, and semiconductor, providing high-quality custom parts.
Based in Fremont, CA, Plastic Depot provides plastic fabrication services for OEM, semiconductor, biotechnology, electronics, and construction industries. They handle projects from prototypes to large production runs for Fortune 500 companies, startups, and inventors from their Silicon Valley facility.
Based in Santa Clara, CA, Caliber Plastic Solutions, Inc. provides custom plastic parts through CNC machining and fabrication. Leveraging two decades of experience, they manufacture precision plastic components in-house, from prototype to production, utilizing a full range of plastic materials.
Based in Beaumont, Texas, Plastics Fabricating-Machining has specialized in plastic fabrication and machining for industrial applications since 1988. The company offers custom plastic solutions, serving business-to-business customers. They are committed to excellence, safety, and customer satisfaction in their production processes.
Plastic Welding & Fabrication specializes in custom industrial plastic fabrications, including plating tanks, vertical and double-wall storage tanks, and immersion-type heat exchangers. Based in Texas, the company provides comprehensive design-to-fabrication services for bespoke equipment tailored to the metal finishing industry.
Based in Beltsville, MD, Precision Plastics, Inc. is a plastic fabrication company founded in 1976, offering nearly 50 years of experience. They provide comprehensive design, engineering, and manufacturing services for custom plastic products. Capabilities range from one-of-a-kind prototypes to short-run production, also working with wood, laminate, and metals.
Based in Hempstead, TX, Precision Urethane & Machine, Inc. specializes in custom cast polyurethane services and precision manufacturing. They offer comprehensive CNC milling solutions, providing high-quality machining for diverse industrial applications. The company expertly processes plastic and urethane materials to produce custom components.
ProtoQuick, Inc. operates a Bay Area machine shop, specializing in CNC machining, injection molding, and engineering support. They provide comprehensive services, including mold making and EDM, for industrial and commercial clients. The company offers integrated solutions, capably handling various materials, including plastics.
Based in Redwood City, CA, Rapid Axis specializes in CNC machining services for both prototyping and production volumes. They offer 3, 4, and 5 Axis CNC machining, including specialized Delrin (acetal/POM plastic) machining. The company focuses on providing competitively priced, quality parts quickly for various manufacturing needs.
RevPart provides rapid prototyping and manufacturing services, specializing in CNC plastic machining. They process materials like ABS, PC, HDPE, and PP for functional testing and production, from prototypes to short-run and high-volume. Industries served include medical, automotive, aerospace, and consumer electronics.
Based in San Diego, CA, SD Prototypes Manufacturing Solutions, Inc. specializes in precision machining, prototype, and CNC machining services. They offer Wire EDM, Small Hole EDM Drilling, and versatile 2, 3, and 4-axis CNC machining, plus 2-axis CNC turning, focusing on quality and intricate designs for manufacturing needs.
Based in Toledo, OH, Seagate Plastics provides custom plastic solutions, specializing in CNC machining of plastic sheet goods. They also offer plastic fabrication, extrusion, and injection molding services. Serving industrial, packaging, construction, and OEM customers, the company operates facilities in Ohio and Michigan.
Based in Gardena, CA, Superior Plastic Fabrication, Inc. specializes in custom acrylic fabrication and custom cut-to-size plastic pieces. They work with diverse plastics, including engineering, high performance, printable, and graphic display materials, serving various industrial and commercial customers.
Based in Sacramento, CA, The Plastics Guy specializes in high-quality plastic fabrication, CNC machining, laser cutting, and plastic welding. They provide custom solutions including heat forming for boat windshields, plastic domes, and acrylic displays. This family-owned shop offers precision plastic parts for various industrial and commercial applications.
Based in Houston, TX, Ultimate Precision Tech is a machine shop providing comprehensive CNC machining services. They utilize extensive equipment including CNC lathes, mills, and EDM for prototypes to full production. The company serves diverse sectors such as aerospace, pharmaceutical, oil and gas, and automotive industries.
Based in Ontario, CA, Upland Fab delivers precision plastic and composite CNC machining. With over 50 years of experience, they specialize in complex, tight-tolerance parts. Capabilities include CNC milling, turning, 5-axis machining, and cryogenic deburring for high-performance plastics and composite materials.
HPPI provides precision CNC machining services for both metals and plastics, supporting low and high-volume production needs. Capabilities include 3, 4, and 5-axis milling, turning, Swiss, and mill-turn operations. The company serves the aerospace, medical device, biotechnology, and scientific instruments industries, holding ISO 13485, AS9100, ITAR, and FDA registrations.
Based in Cincinnati, OH, Performance Plastics specializes in engineered polymer solutions. They provide high-performance injection molding, precision CNC machining, and assembly services. Working with diverse engineering plastics, the company serves demanding industries including medical, aerospace, and defense.
Based in Woodland Park, NJ, Acme Plastics specializes in custom plastic fabrication services. They offer plastic sheet and acrylic customization, including cut-to-size capabilities, from their expansive manufacturing facility. The company works with materials such as Acrylic, Polycarbonate, HDPE, and PP, serving customers since 1943.
Based in Daytona Beach, FL, AIP Precision Machining specializes in custom plastics machining. They provide precision machining for complex prototypes and finished polymer components, from initial concept to completion. Leveraging engineering and design expertise, AIP serves demanding industries like Aerospace & Defense, Medical & Life Sciences, and Power & Energy.
Based in Ontario, CA, California Quality Plastics Inc. offers extensive plastic manufacturing and fabrication services. With over 30 years of experience, they create custom plastic components, displays, and cases. Serving entertainment, OEM, military, and government sectors, the company expertly produces a wide range of plastic products.
Cox Manufacturing Company, based in San Antonio, TX, specializes in ultra-precision and micro machining of custom plastic parts, including acetal. They offer high-volume orders with a focus on reliable quality, providing components that require high mechanical strength and rigidity, all manufactured in the USA.
Curbell Plastics offers close tolerance CNC and manual plastic machining services. They utilize state-of-the-art equipment to produce high-quality plastic components with a focus on on-time delivery. These services are provided to various industrial and commercial clients.
Based in Cypress, TX, Drake Plastics specializes in precision plastic machining and injection molding of ultra high-performance polymers. They provide CNC machining services for materials such as Torlon PAI, PEEK, and Ryton PPS. Drake also manufactures and supplies a wide array of high-performance stock shapes.
Based in Dallas, TX, E & D Plastics Inc specializes in custom plastic fabrication, machining, and finishing services. They transform plastic sheets, rods, and tubes into a wide array of products for commercial, medical, retail, wholesale, and museum applications. The company emphasizes high-quality craftsmanship and personalized service.
E.J. Basler Co. is a high-volume precision machine shop providing plastic machining capabilities. They offer Hydromat, Davenport, Multi-Spindle, Swiss Screw machining, and CNC machining services for custom projects. The company focuses on delivering high-quality, cost-effective solutions for precision machined parts with a commitment to zero defects.
Based in Mahwah, NJ, eMachineShop provides custom manufacturing services, including precision CNC machining, injection molding, and 3D printing for plastic parts. They handle both rapid prototyping and full production runs across a wide range of plastic and metal materials. The company offers free shipping within the USA.
Based in Cedar Grove, NJ, Emco Industrial Plastics, Inc. specializes in custom CNC plastic machining, offering high-precision milling, turning, routing, and laser services for prototypes and production parts. They also provide plastic fabrication, welding, and edge finishing. Emco serves diverse industries like aerospace, automotive, and medical.
Based in Northfield, NH, EPTAM is an American manufacturer specializing in machined plastic products and assemblies. They provide comprehensive plastics machining capabilities, including complex engineering and Design for Manufacturing support. EPTAM focuses on scalable production with quality and cost efficiency, serving diverse industrial clients.
Based in Pflugerville, TX, Four Points Platinum Machining and manufacturing is a precision CNC machine shop. They offer comprehensive manufacturing solutions including CNC milling and turning, assembly, engineering, fabrication, 3D printing, and inventory readiness. This company provides contract manufacturing services to industrial and commercial clients.
Jaco Products is a U.S.-based plastic manufacturer with over 70 years of experience, specializing in custom plastic machining services. They offer advanced 5-axis CNC machining, injection molding, and stamping for tight-tolerance parts. Capabilities include prototype to high-volume production using materials like Delrin, nylon, and Ultem.
Lundell Plastics Corp. based in Odebolt, IA, provides precision plastic machining services. Utilizing 5-axis CNC routing capabilities, they manufacture custom polyethylene and UHMW plastic components for agricultural and industrial equipment. They offer durable parts for machinery protection and maintenance.
Established in 1969, R&B Plastics specializes in the custom CNC machining of plastic parts. The company is recognized for its excellence and innovation in providing tailored solutions for various applications.
Based in North Hollywood, CA, M.A.S. Plastics, LLC is a family-owned company specializing in custom acrylic fabrication since 1988. They offer comprehensive CNC and laser cutting services, demonstrating an unwavering attention to detail and high-quality craftsmanship. The company provides custom plastic solutions for diverse client needs.
McElroy Plastics is a family-owned custom plastic fabricator based in Troup, Texas. Specializing in plastic machining, the company offers a range of services including CNC machining, routing, thermoforming, welding, bonding, and polishing. They provide full-service fabrication from prototype to production for various industries.
Moore Fabrication, based in Houston, TX, specializes in precision CNC machining and fabrication. They offer expertise in thermoplastics, acrylics, acetal, and PEEK, producing components with ultra-tight tolerances. The company is known for delivering high-quality, intricate parts for unique industrial challenges.
Plastech Manufacturing, based in Rancho Cucamonga, CA, specializes in precision CNC machining and plastic fabrication. They provide prototype and production services for a wide range of engineered plastics, including Acetal, Delrin, Nylon, PEEK, PTFE, and UHMW. Their facility offers comprehensive milling, turning, and assembly capabilities for industrial clients.
Based in Stoughton, MA, Primo Medical Group specializes in CNC plastic machining for medical devices, implants, aerospace, and defense components. The company provides tailored engineering and manufacturing services for precision machined components, ensuring high quality and adherence to stringent regulatory standards.
Based in Haltom City, TX, R&E Tooling & Plastics, Inc. specializes in precision plastic injection molding and comprehensive manufacturing services. With 56 years of experience, they offer finishing and machining from various materials. They serve aerospace, medical, consumer, robotics, and automotive industries, producing high-quality custom plastic components.
Based in Reading, PA, Reading Plastic specializes in advanced plastic and metal machining. They provide high-end, tight tolerance machined plastic and custom metal parts for demanding applications. The company offers expertise in specialty plastics, producing components like seals, gears, rollers, and military parts.
Based in Northwood, OH, RJ Plastics Displays & Machining specializes in custom plastic displays and products. Their RJ Machining division offers diverse plastic machining services, employing modern technology for precision fabrication. They serve industries like transportation, automotive, industrial, and agriculture, delivering custom solutions.
Spectrum Plastics provides precision machining services specifically for medical device OEMs. With 60 years of experience, they process implantable-grade materials in their FDA-registered facility. The company offers solutions from concept to final product, including custom extruded tubing, advanced catheter technologies, and medical balloons.
Based in Norco, CA, Sr Machining Inc. provides comprehensive in-house CNC machining for plastics and metals. Specializing in precision turning, milling, and fabrication of engineered plastics and metal alloys, the company serves medical, aerospace, and fluid handling industries. They are ISO 9001 and AS9100 certified.
Based in Corona, CA, Tamshell Precision Machining provides comprehensive CNC machining services, including milling, turning, and grinding. They specialize in working with a diverse range of engineering plastics, such as Delrin, Ultem, PEEK, and Acrylic. The company also machines metals like aluminum and stainless steel for industrial clients.
Based in Kalamazoo, MI, Total Plastics specializes in custom plastic fabrication and CNC machining of engineering plastics. They offer high-precision routing, laser cutting, and plastic welding for materials like acrylic, Lexan® polycarbonate, and UHMW. Services support industrial, medical, marine, and architectural applications.
Based in Holyoke, MA, Universal Plastics manufactures custom plastic parts. They provide comprehensive plastic fabrication services, including machining, thermoforming, and finishing. The company serves diverse industrial and commercial clients, delivering high-quality, engineered plastic components tailored to specific applications.
Based in San Diego, CA, ARRK North America, Inc. provides rapid low-volume CNC machining services for prototyping and custom manufacturing. The company collaborates with clients through all stages of product development, from initial concepts to full production, helping to accelerate market entry.
Apex Plastics & Tooling, based in Garland, TX, specializes in custom plastic component manufacturing. They offer precision machining and tooling services for various industries, creating intricate parts, prototypes, and molds. The company supports diverse client needs with tailored solutions for plastic fabrication.
Based in Dallas, TX, Bill's Plastics Inc. is a custom plastic fabrication and machine shop. They specialize in CNC machining, routing, milling, and turning of diverse plastics like Acrylic, Polycarbonate, and UHMW. The company also offers plastic welding, forming, and bending for industrial clients.
Controlled Fluidics provides precision-machined plastic components and custom fluidic manifolds. The company serves the medical, dental, diagnostics, and systems industries, offering specialized manufacturing solutions for complex fluidic applications. They focus on high-quality, custom parts.
GoProto, Inc. provides high-precision CNC machining services for plastic and metal prototypes and production parts. With US facilities in California and Ohio, the company offers 3, 4, and 5-axis milling, turning, and EDM capabilities, delivering on-demand digital manufacturing solutions across various industries.
Based in Pierceton, IN, Paragon Medical specializes in precision plastic machining, including fabrication and polishing services. They offer comprehensive manufacturing capabilities from prototyping to validated production. Serving medical devices, life sciences, aerospace & defense, and industrial markets, Paragon Medical focuses on advanced CNC plastic machining and other engineered solutions.
Based in Chino, CA, Precision Tool & Plastics, LLC is a contract manufacturer specializing in custom plastic fabrication. They provide comprehensive plastic machining services including milling, turning, routing, and drilling. The company also offers vacuum forming, injection molding, and assembly, serving diverse industrial clients in aerospace, medical, and electronics.
Based in Gainesville, TX, Reliant Worldwide Plastics specializes in custom plastic injection molding and in-house precision plastic machining. They offer CNC machining, EDM, grinding, and rapid prototyping services, providing comprehensive solutions for high-quality plastic components and tooling across various industries.
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Plastic materials inherently possess internal stresses, which are often introduced during the manufacturing process of the raw stock (extrusion, molding). Machining removes material, disrupting these balanced stresses, allowing the material's 'memory' to manifest as warpage or dimensional instability. The high thermal expansion coefficient of plastics can also exacerbate these issues with temperature fluctuations. Specialized plastic machinists address this through proper tool selection, optimized chip load to minimize heat generation, and critical post-machining stress relief annealing, where parts are slowly heated and cooled to relax internal stresses.
Achieving precise optical clarity requires more than just standard machining. Look for suppliers with dedicated experience in optical-grade plastics like acrylic or polycarbonate. Key capabilities include specialized, highly polished cutting tools to minimize surface imperfections, multi-stage polishing processes (vapor, flame, or mechanical) to achieve specific clarity levels, and often, a controlled, cleanroom environment to prevent dust and debris from marring surfaces. Requesting samples of their optically machined parts is crucial for evaluating their expertise.
The type of plastic significantly impacts cost and lead time. Commodity plastics (e.g., HDPE, Delrin) are generally easier and faster to machine, resulting in lower costs. However, high-performance engineering plastics (e.g., PEEK, Ultem, PTFE) are more challenging. They often require slower feed rates, lower chip loads, specialized and more expensive tooling, and more stringent process controls to prevent thermal degradation, melting, or chipping. Additionally, materials like PEEK may require specific stress relief annealing cycles, extending lead times. Material cost itself also varies dramatically; high-performance plastics are substantially more expensive per pound than commodity options.