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Aluminum Machining Companies

Last updated: January 2026

This directory lists 113 aluminum machining companies across the United States, from rapid prototyping job shops specializing in small batches to high-volume contract manufacturers with extensive multi-axis capabilities.

Buyers typically seek aluminum machining to produce lightweight, high-strength parts with specific performance characteristics, often requiring tight geometric dimensioning and tolerancing (GD&T) or precise surface finish (Ra) values. Common challenges include achieving critical perpendicularity on mating surfaces, managing tool path optimization for complex geometries, and ensuring consistent part quality across large production runs.

Supplier types in this sector vary considerably. You’ll find specialized aerospace manufacturers holding AS9100 certification, medical device component producers compliant with ISO 13485, general-purpose job shops offering quick-turn prototypes, and high-volume production facilities leveraging automation and lights-out machining. Their distinguishing factors often include machine type (3-axis, 4-axis, 5-axis, mill-turn), their expertise with specific aluminum alloys, and their capacity for secondary operations like anodizing or vibratory finishing.

To engage effectively, buyers should prepare detailed CAD models (preferably STEP or SolidWorks files), comprehensive 2D drawings with all critical dimensions and GD&T callouts, specified aluminum alloy and temper, expected production volume, and desired lead times. Suppliers, in turn, expect clear specifications to provide accurate quotes and may offer valuable design for manufacturability (DFM) feedback based on their specific equipment and process expertise.

A notable trend in aluminum machining is the increasing demand for complex, monolithic parts requiring 5-axis simultaneous machining to reduce setups and improve accuracy. There's also a strong push towards automation, including robotic part loading and machine tending, to enhance efficiency and competitiveness, particularly as reshoring initiatives gain traction.

113 companies·81 emails·106 phones

Company Directory

113 companies nationwide

Fremont, CA

Advanced Tech Machining, based in Fremont, CA, is an ISO 9001:2015 certified provider of precision CNC machining services. They specialize in CNC milling, turning, prototyping, and custom parts manufacturing, offering engineered solutions for complex designs. The company serves the aerospace, medical, automotive, and advanced technology industries.

San Antonio, TX

Based in San Antonio, TX, Aero Precision Manufacturing Inc. provides high-quality machined components and parts, emphasizing lean manufacturing and continuous improvement. Services include CNC automated laser cutting, complete assembly, powder coating, and painting. All products are manufactured in the USA, ensuring on-time delivery for diverse industries.

Fremont, CA

Based in Fremont, CA, AJ Solutions Machining offers precision CNC milling and turning for prototype and production needs. They specialize in working with diverse materials, including aluminums, steels, and engineering plastics. Serving sectors like aerospace, defense, and automation, the company ensures close tolerance, high precision, and rapid turnaround.

Alexandria, MN

Based in Alexandria, MN, Alexandria Industries is a multifaceted manufacturer specializing in custom aluminum extrusions and comprehensive machining services. They also provide stretch forming, bending, heatsinks, and injection molding. The company serves diverse industrial and commercial customers with precision-engineered components.

Middletown, DE

Based in Middletown, DE, Allied Precision, Inc. is a precision machine shop offering CNC machining, turning, and milling services. They specialize in manufacturing complex, custom-engineered precision machined components and fabricated assemblies for industrial clients, with typical 4-to-6-week turnarounds. Custom welding and metal finishing are also provided.

Alloy Enterprises specializes in high-performance aluminum parts manufacturing, focusing on leak-tight thermal management components for cooling solutions. They produce complex microchannels and fully dense materials without tooling, serving industries like data centers, defense electronics, and industrial applications.

Commerce, CA

Based in Commerce, CA, Alloy Machining Services, Inc. is a full-service machine shop specializing in OD turning, ID boring, honing, milling, and hydraulic cylinder repair. They work with diverse metals, including aluminum, stainless, and titanium. Their large-scale capabilities serve industries like aerospace and oil drilling.

Livermore, CA

Based in Livermore, CA, Alloy Metal Products provides comprehensive metal machining services. Capabilities include multi-axis milling, 8-axis tool turning, precision assembly, and wire EDM cutting. They operate advanced 4-axis and 5-axis CNC machines for diverse part sizes.

Yorba Linda, CA

Based in Yorba Linda, CA, Alpha Omega Swiss, Inc. is a precision CNC machining company established in 1980. They specialize in customized machined parts using state-of-the-art Swiss screw machines in their 16,000 sq ft facility. The company serves diverse industries including medical, dental, aerospace, military, and electronics, providing components with quick lead times and customized solutions.

Santa Maria, CA

Based in Santa Maria, CA, Aluma-Tech Inc. has provided high-quality CNC machining services since 1997. Specializing in precision solutions for industrial applications, the company offers expert machining capabilities to businesses of all sizes, maintaining a strong reputation for excellence.

San Carlos, CA

Based in San Carlos, CA, American Prototype & Production Inc. provides precision machining services for science and industry. With over 30 years of experience, they specialize in manufacturing instrumentation for R&D, semiconductor capital equipment, and medical devices, focusing on quality and advanced technology.

Allen, TX

Based in Allen, TX, All Metals Fabricating provides precision machining, CNC milling, and CNC turning services for custom metal fabrication. The company also offers laser cutting, CNC punching, tube laser cutting, welding, and assembly, supporting various industries with comprehensive metal manufacturing solutions.

Anaheim, CA

Based in Anaheim, CA, Anaheim Extrusion Company specializes in aluminum and metal extrusions, producing standard and custom shapes. Their comprehensive in-house fabrication services include drilling, countersinking, tapping, cutting, punching, and welding. They also offer metal roll forming, anodizing, and powder coating for diverse industrial applications.

San Diego, CA

Based in San Diego, CA, AP Precision Metals, Inc. provides full-scale metal solutions with over 20 years of experience. Specializing in aluminum busbar and OEM supply, their capabilities include metal fabrication, cutting, welding, painting, finishing, and assembly. This ISO 9001:2015 certified company offers advanced manufacturing services.

New Hope, MN

Based in New Hope, MN, Ardel Engineering specializes in precision CNC machining services for the aerospace manufacturing field. The company utilizes advanced CNC technology to produce high-quality components, meeting the stringent requirements of its industrial clientele. They focus on delivering reliable machining solutions.

Itasca, IL

Based in Itasca, IL, Associated Fastening Products, Inc. manufactures standard and special fasteners for the OEM market. They provide comprehensive CNC machining, automatic screw machining, and Swiss screw machining services, leveraging over 35 years of experience. They serve diverse industries, including agriculture and gun manufacturers.

Chatsworth, CA

A-Tech Machining, based in Chatsworth, CA, delivers precision CNC machining and metal fabrication services. Specializing in 3, 4, and 5-axis CNC milling and turning, they handle prototyping and production requirements. With rapid lead times, no minimum orders, and tight tolerances, A-Tech is ISO 9001 and AS 9100 compliant, ensuring high-quality metal parts.

Glendale Heights, IL

Based in Glendale Heights, IL, Avanti Engineering, Inc. provides high-volume CNC and Swiss screw machining. They specialize in precision parts from materials like aluminum, stainless steel, copper, and plastics. The ISO 9001:2015 certified company offers industrial manufacturing solutions, with production runs starting at 1,000 pieces.

Alameda, CA

Bay Machine & Fabrication, based in Alameda, CA, offers full-service precision machining, metal fabrication, and waterjet cutting. As a division of Bay Ship & Yacht, Co., they handle large-scale machine and fabrication projects. Their services are backed by an engineering staff, ensuring high-quality work, competitive pricing, and short lead times.

Escondido, CA

Based in Escondido, CA, C&H Machine, Inc. is an AS9100 and ITAR certified precision manufacturing facility specializing in expert aluminum machining, including milling and turning services. They offer full-service capabilities for short-run and production-run needs, utilizing advanced technology and CMM inspection for rigorous quality control.

Based in Telford, PA, Cer-Mac, Inc. offers CNC machining and wire EDM services for high-precision components. They support industries including aerospace, oil & gas, medical, optical, and semiconductors. Cer-Mac is ISO 9001:2015 certified and ITAR registered.

Union City, OH

Based in Union City, OH, Cast Metals Technology is a full-service provider of American-made aluminum casting and precision machining services. The company offers turn-key solutions from concept to final product, specializing in both low and high-volume aluminum sand castings and various metal services.

Los Angeles, CA

Based in Los Angeles, CA, CNC Alpha specializes in CNC machining services and specialty parts manufacturing. Serving Aerospace, Medical, and Defense industries, the company has over 20 years of experience. They are ISO 9001 and AS9100 certified, committed to delivering precision parts to specification, on-time and within budget.

Fort Wayne, IN

Based in Fort Wayne, IN, CNC Industries, Inc. provides precision machined components with a focus on aluminum machining. The company serves the Aerospace, Defense, Transportation, Medical, Industrial, and Specialty markets, operating under AS 9100 and ISO 9001 certifications to deliver high-quality manufacturing solutions.

Ontario, CA

Based in Ontario, CA, CNC Machining & Engineering, Inc. provides high-precision CNC machining services for complex parts. They utilize Citizen Cincom Swiss machines for turning and threading, Brother Speedio CNC mills for detailed milling, and Miyano CNC lathes. The company holds tight tolerances up to +/-.0002, delivering robust solutions.

Troy, TX

Based in Troy, TX, Central Texas Machining is a third-generation family-owned machine shop. They offer CNC turning and milling services, from prototype to large volume production. Specializing in oil/gas and hydraulic cylinder components, the company provides turnkey solutions demanding high quality and precise tolerances.

Van Nuys, CA

Based in Van Nuys, CA, D&A Metal Fabrication provides full-service custom metal fabrication with over 40 years of experience. They offer comprehensive CNC services including laser cutting, milling, turning, punching, forming, and bending. Additional capabilities encompass welding, grinding, and hardware installation, along with finishing services through a network.

Denison, TX

Based in Denison, TX, Denison Industries specializes in precision machined aluminum castings and complex components. The company offers sand casting foundry services, utilizing high-tech machining equipment. AS 9100 D & ISO 9001:2015 certified, they serve aerospace, automotive, commercial, and military/defense industries.

Modesto, CA

Based in Modesto, CA, Diversified Machining & Fabrication is a family-owned metal fabrication and machine shop. They offer close tolerance machining and mass production of custom parts, including aluminum. Services also feature waterjet cutting and certified welding for industrial and agricultural clients.

Freeport, TX

Based in Freeport, TX, Dooling Machine Products is a precision machining expert offering advanced manufacturing for complex parts. Founded in 1985, the company has evolved into a leading manufacturer, providing comprehensive machining services for diverse industrial needs.

Houston, TX

Based in Houston, TX, ER Machining offers high-precision CNC machining, milling, and turning services. They provide custom and emergency solutions with fast turnaround. Capabilities include metal fabrication and design, serving diverse industries like aerospace and oil & gas.

Chaska, MN

Ermak Foundry & Machining, Inc. operates an integrated foundry and machine shop in Chaska, MN, specializing in aluminum alloy casting services. They offer sand casting, permanent mold production, and precision machining for prototypes, custom products, and production runs. This US-based company emphasizes quality and on-time delivery for industrial clients.

Oxford, CT

Based in Oxford, CT, Gen-El-Mec Associates, Inc. specializes in precision custom CNC milling, turning, and wire EDM services. They offer complex machining for prototype, short-run, and long-run production, primarily serving the aerospace industry. The company expertly machines aluminum components, including 6061-T6 housings, holding tolerances to ±.0002 inches.

Youngstown, OH

Based in Youngstown, OH, General Extrusions International, LLC. specializes in aluminum extrusions and comprehensive secondary fabrication. They provide CNC machining for aluminum extrusions in 3000 and 6000 series alloys, alongside custom finishing services like anodizing and powder coating. The company delivers complete, finished aluminum components and is ISO 9001 certified.

Oakland, CA

Based in Oakland, CA, Glint Manufacturing LLC offers precision CNC machining and turning of a host of materials, including aluminum. They also provide manual machining, welding, and 12KW fiber laser cutting for steel, stainless, and aluminum. The company supports single part runs or volume processing, along with design assistance.

Wood Village, OR

Based in Wood Village, OR, GrovTec Machining is a precision Swiss CNC machine shop. The company specializes in aluminum machining, leveraging advanced capabilities to precision machine aluminum materials. They offer comprehensive manufacturing services for various industrial applications, serving B2B customers.

Berkeley, CA

Based in Berkeley, CA, Howlett Machine Works is an ISO 9001:2015 certified machine shop offering high-precision CNC machining services. They specialize in prototypes and assemblies, utilizing 3-, 4-, and 5-axis CNC milling, turning, and EDM. The company works with various materials, including aluminum, stainless steel, and engineered plastics for industrial applications.

Reed City, MI

Based in Reed City, MI, HR Screw specializes in the production of high-precision aluminum and brass screw machine components. They provide comprehensive CNC and Swiss CNC machining services, alongside additional machining operations, catering to industrial clients requiring custom manufactured parts.

Waxahachie, TX

Based in Waxahachie, TX, International Extrusion Corporation specializes in custom aluminum extrusion projects. They provide complete in-house production for various shapes and sizes, with minimal lead times. The company also offers full finishing services, from anodizing to paint, and value-added fabrication for diverse industrial applications.

Auburn Hills, MI

Based in Auburn Hills, MI, IQ Manufacturing specializes in aluminum fabrication. The company provides a range of distinct services for industrial clients, including the production of prototype parts and comprehensive production machining capabilities. They cater to various manufacturing needs within the aluminum sector.

Mansfield, TX

Based in Mansfield, TX, Jireh CNC Machining provides high-quality, precision CNC milling, lathe turning, drill & tapping, and 3D profiling services. They deliver custom machined parts from prototype to full production for diverse industries. Committed to attention to detail, Jireh emphasizes superior quality and rapid turnaround times.

Hayden, ID

Based in Hayden, ID, LA Aluminum is a single-source manufacturer specializing in permanent mold aluminum casting. The company operates an in-house machining shop, providing high-quality machined aluminum castings and precision-machined aluminum prototypes.

Glendale, CA

Based in Glendale, CA, LA CNC Inc. provides precision CNC machining services, specializing in turning and milling for a variety of metals and complex parts. With over 30 years of experience, they offer fast, high-volume production, short runs, and rush orders to industrial clients.

Latva Machine, LLC provides advanced precision CNC machining services for aerospace, military, and high-tech industries. They specialize in complex, complete-to-print components using exotic materials like hard coat anodized aluminum. The company offers both short-run and high-volume production and is AS9100D certified.

Santa Fe Springs, CA

Based in Santa Fe Springs, CA, MA5 Fabrication Inc. specializes in full-service metal fabrication, including CNC machining, sheet metal, and welding. They work with materials like aluminum, stainless steel, and plastics, producing precision components. The company serves the aerospace, medical, automotive, and defense industries.

Houston, TX

Based in Houston, TX, Metal Machining Technology provides comprehensive metal machining services. Specializing in manual and CNC machining, they craft special fixtures and fabricate metal components for the industrial landscape. With extensive experience, they deliver precise, accurate, and timely solutions for diverse client needs.

Post Falls, ID

MetalQuest Unlimited, based in Post Falls, ID, is a U.S.-based precision CNC contract manufacturer. They specialize in machining aluminum, stainless steel, carbon steel, and plastics, producing custom component parts with tight tolerances. The company also provides assembly and inventory management solutions, ensuring reliable, on-time delivery for B2B clients.

Rowlett, TX

Based in Rowlett, TX, North Dallas CNC Machine Shop is a full-service provider specializing in machining services. The company handles orders ranging from prototypes to high-volume production, backed by over 100 years of combined experience. They utilize Hurco CNC Lathes and Leadwell CNC Mills.

Oak Creek, WI

Based in Oak Creek, WI, Owens Industries specializes in high-precision aluminum machining services. They produce complex aluminum parts and components using advanced techniques like 5-axis, Swiss machining, micromachining, turning, milling, and wire/sink EDM processes, focusing on precision accuracy for demanding applications.

Pearland, TX

Based in Pearland, TX, Pearland Precision specializes in CNC machining services. They focus on delivering dependable, high-quality parts at competitive prices, strengthening customer supply chains. The company employs lean manufacturing techniques to optimize production processes, ensuring efficient, on-time delivery for customer projects.

PHB Inc. is a global manufacturer specializing in aluminum and zinc die casting, along with CNC machining, plastic molding, and tool and die services. They provide high-quality, turnkey solutions for automotive, military, and consumer goods industries from their US facilities.

Roseville, CA

Based in Roseville, CA, Precision Manufacturing Company provides 5-axis CNC machining services. Founded by Kelly Johnson, who has over four decades of industry experience, the company is ISO9001 and ISO13485 certified. They are also NIST SP 800-171 compliant, serving clients requiring high-precision manufacturing.

Anaheim, CA

Based in Anaheim, CA, Precision Metal Components specializes in manufacturing high-quality, custom components using precision CNC machines. The company employs skilled American engineers, programmers, and machinists to produce all parts domestically. They offer competitive pricing for their made-in-the-USA precision metal components.

Somonauk, IL

Based in Somonauk, IL, Precision Enterprises Foundry and Machine specializes in aluminum sand castings and integrated machining services. Utilizing over 25 in-house CNC milling and turning centers, the company machines a significant portion of its poured aluminum parts. They also offer various secondary finishes, including industrial coatings.

Wichita Falls, TX

Based in Wichita Falls, TX, Precision Machine Works offers quality manufacturing services with over 25 years of experience. Founded in 1994, this company has grown into a significant provider, utilizing a team of skilled professionals dedicated to transforming ideas into high-quality products for its customers.

Waterbury, CT

Based in Waterbury, CT, Precision X MFG provides high-reliability, precision metal components. The company utilizes advanced manufacturing and engineering capabilities, including Swiss CNC screw machines for turning, drilling, and milling. They serve Aerospace, Defense, Medical, Electric Vehicle, and Semiconductor markets.

Premier Aluminum provides integrated CNC machining and aluminum casting services. The company utilizes over 70 machines to produce components with tight tolerances and offers fast lead times. They primarily serve original equipment manufacturers (OEMs) and Tier 1 suppliers, delivering custom aluminum parts.

Sacramento, CA

Based in Sacramento, CA, PRO Machine Works provides precision CNC machining solutions with over 20 years of experience. They leverage cutting-edge CNC technology to turn designs into tangible realities, serving as an exclusive supplier to equipment manufacturers nationwide for quality design and precision machined parts.

Dexter, MI

Based in Dexter, MI, Protomatic Inc. offers precision CNC machining services for custom prototype and short-run parts. Specializing in components for the medical and aerospace industries, the company emphasizes 'Life-Saving Precision' to meet exacting specifications and critical application needs.

Contoocook, NH

Prototek, located in Contoocook, NH, provides comprehensive digital manufacturing solutions with expertise in CNC machining, including milling, routing, and turning. They support projects from prototyping to production using advanced methods and over 100 materials, holding ISO 9001:2015 and AS9100D certifications.

Irving, TX

Based in Irving, TX, PSI Industries, Inc. provides custom aluminum extrusions and extensive CNC machining services. The company offers comprehensive fabrication capabilities, acting as a one-stop shop for aluminum products. They assist with initial product design for high-quality, cost-effective manufacturing.

Redwood City, CA

Based in Redwood City, CA, Rapid Axis is a manufacturing partner providing 3, 4, and 5 Axis CNC Machining, Sheet Metal, DMLS, Injection Molding, Urethane Casting, and 3D Printing services. They offer competitively priced, quality parts for quick prototypes through annual production runs for various organizations.

Oakland, CA

Based in Oakland, CA, Redwood Machine Works, Inc. provides precision machining services. As a dedicated machine shop, they offer manufacturing capabilities for a range of materials, including aluminum, serving industrial and commercial clients. The company focuses on producing custom components and parts.

Bland, MO

Based in Bland, MO, Roberson Machine Company is a US-based provider of precision CNC machining services. They specialize in aluminum machining, CNC milling, and turning, handling orders from prototype to production. The company serves diverse industrial clients in aerospace, automotive, medical, and electronics sectors.

San Diego, CA

Based in San Diego, CA, SD Prototypes Manufacturing Solutions, Inc. provides precision machining, prototype manufacturing, and CNC machining services. They specialize in 2, 3, and 4-axis CNC machining, 2-axis CNC turning, Wire EDM, and Small Hole EDM Drilling. The company maintains high quality through rigorous procedures and calibrated inspection tools.

Alameda, CA

Based in Alameda, CA, SKS Die Casting & Machining provides precision aluminum and zinc die casting services. They utilize advanced machining equipment for complete components, offering in-house design, engineering, and tool/die operations. The company serves the aerospace, semiconductor, automotive, and medical industries with custom-designed parts.

San Francisco, CA

Based in San Francisco, CA, SMP Machine, Inc., also known as Standard Metal Products, provides metal machining services. They offer custom fabrication capabilities for industrial and commercial clients, specializing in precision components and various metal alloys.

Anaheim, CA

Established in 1997, Southern California Precision Machining, Inc., based in Anaheim, CA, specializes in providing custom machining for military and commercial connectors. The company serves the electronic, hermetic, and communications industries, offering comprehensive manufacturing solutions for various components and other machining needs.

Kingsville, MO

Based in Kingsville, MO, Stahl Specialty is a vertically integrated aluminum foundry. They specialize in high-volume manufacturing programs, offering comprehensive services for aluminum components. Capabilities include die casting, gravity and sand casting, robotic machining and trimming, finishing, and assembly. The company also provides tooling design.

Houston, TX

Houston-based STB Machine Works, established in 1980, specializes in prototype and short-run production of precision machined parts. This ISO 9001 certified company leverages advanced CNC technology and in-house engineering. They serve diverse sectors including Oil & Gas, Aerospace, Government, and Power Generation industries.

Fremont, CA

Based in Fremont, CA, Superior Precision Machining, LLC offers comprehensive 3, 4, and 5-axis CNC machining services. They specialize in complex geometries, prototypes, and assemblies, providing engineering support and rigorous QA/QC inspection. With 48-hour fast turnaround available, they serve industry leaders like SLAC and Waymo, backed by ISO 9001:2015 certification.

Conroe, TX

Based in Conroe, TX, Texas Metal Works specializes in custom metal fabrication and machining services. The company likely handles various metals, including aluminum, offering precision manufacturing for industrial and commercial applications. Their capabilities often include CNC machining, welding, and other metalworking processes.

Brookfield, WI

Based in Brookfield, WI, Trace-A-Matic Corporation is a precision machine shop with facilities also in Houston, TX. They provide high-volume production machining services for complex components from diverse materials like castings and bar stock, serving demanding sectors such as aerospace, automotive, and defense.

Houston, TX

Ultimate Precision Tech, a Houston, TX machine shop, specializes in high-precision CNC machining. They offer prototype to production manufacturing using extensive equipment, including CNC lathes, mills, 5-axis machines, and EDM. The company serves industries like aerospace and oil and gas, known for quality and quick turnaround.

Torrance, CA

Based in Torrance, CA, Verus Aerospace specializes in high-speed aluminum and hard metal machining for complex, mission-critical aerospace and defense components. They offer precision machining for parts up to 720 inches, integrated assembly solutions, and expanding chemical processing and coatings capabilities.

Houston, TX

Based in Houston, TX, VMC Precision LLC provides precise CNC machining solutions, specializing in a wide range of materials including metals, plastics, and composites. The company is committed to 99.9% precision, high quality, and fast turnaround for its machining services.

Anaheim, CA

Based in Anaheim, CA, Precision Machining & Fab offers extensive in-house CNC machining, sheet metal fabrication, welding, waterjet, and laser cutting services. They provide quick-turnaround prototypes and support large-scale orders. The company is ISO 9001:2015, AS9100D, and ITAR certified for quality.

Independence, MO

Based in Independence, MO, 3ERP specializes in rapid prototyping and custom parts, offering comprehensive aluminum machining services. They provide 5-axis CNC machining for materials such as Aluminum 7075-T6, catering to both 1-off prototypes and 100K+ mass production orders. They work with over 100 metals and plastics.

Pacoima, CA

Based in Pacoima, CA, American CNC Inc. is a manufacturing company specializing in precision machined components. They offer prototype, short-run, and high-volume production through 4 and 5-axis milling, turning, grinding, and lapping services. American CNC serves aerospace, Department of Defense, oil & gas, and medical equipment industries.

Fremont, CA

Based in Fremont, CA, BUTANO Extrusions Inc. specializes in aluminum extrusion, die design, and finishing services. They provide anodizing, painting, and a range of value-added services, forming precision manufacturing partnerships for their clients.

HPPI provides precision CNC machining services, including 3, 4, and 5-axis milling and turning, for both low and high-volume production. Specializing in over 50 metals and plastics, the company serves the aerospace, medical device, biotechnology, and scientific instruments industries. They hold AS9100D, ISO 13485, and ITAR certifications.

Bloomingdale, GA

Based in Bloomingdale, GA, Aerotech Machining, Inc. specializes in high-precision CNC machining, traditional machining, and waterjet cutting. They work with materials like aluminum to produce customized parts for the aerospace, power generation, agriculture, and railway industries. Committed to quality, they deliver precision components in an ultra-clean manufacturing environment.

Wheeling, IL

Based in Wheeling, IL, Abbott Interfast provides custom CNC aluminum parts and aluminum machining services. The ISO certified and ITAR registered manufacturer also offers general CNC machining for standard and special products, including fasteners. They primarily serve North American Original Equipment Manufacturers (OEMs) from their 100,000 sq. ft. facility.

Tracy, CA

All-In Machining, LLC is a veteran-owned precision CNC machine shop in Tracy, CA. They specialize in expert CNC milling and turning for prototyping and production volumes. Working with aluminum, stainless steels, and engineering plastics, the company serves critical industrial sectors including aerospace, medical, automotive, and defense.

Rancho Cucamonga, CA

Based in Rancho Cucamonga, CA, All-Star Precision is a CNC machine shop offering precision machining services for custom parts, prototyping, and production runs. They specialize in working with materials including aluminum, stainless steel, and various plastics. The company serves industrial clients in aerospace, medical, automotive, and defense.

Orange, CA

Anaheim Precision is a vertically integrated metal fabrication facility in Southern California, specializing in aerospace manufacturing. They provide extensive machining capabilities, including 3-axis and 5-axis milling, turning, water jet, and laser processing. The company offers hundreds of unique manufacturing processes for parts up to 156 inches.

Pflugerville, TX

Based in Pflugerville, TX, Austin Precision Machining and Manufacturing is a precision CNC machine shop in Central Texas. They provide comprehensive manufacturing solutions including CNC milling and turning, assembly, engineering, fabrication, and 3D printing. The company delivers superior quality and aims for lower production costs.

Haslet, TX

Based in Haslet, TX, CNC Machining LLC provides precision CNC milling and turning services. The company offers prototyping, short-run production, and manual machining capabilities, working with various materials including aluminum, stainless steel, and plastics for industrial clients.

San Antonio, TX

Based in San Antonio, TX, Cox Manufacturing Company delivers ultra-precision and micro machining services for high-volume orders. They expertly machine a diverse range of materials, including aluminum, various alloys, brass, copper, and plastics, with a reputation for handling challenging metals. All production is reliably made in the USA.

Cedar Rapids, IA

Based in Cedar Rapids, IA, DW Products specializes in precision aluminum machining services. The company offers multi-spindle CNC, Swiss CNC screw machining, and CNC turning and milling capabilities. They produce high-quality custom parts for various industries, including automotive, agriculture, and connectors.

Mahwah, NJ

Based in Mahwah, NJ, eMachineShop provides precision CNC machining services, including milling and turning for aluminum and other metal parts. They offer rapid prototyping and full production runs, handling a wide variety of materials and secondary processes, with 25+ years of experience.

Santa Clara, CA

Based in Santa Clara, CA, Euro Machining specializes in CNC milling, turning, and rapid prototyping services. They proficiently machine a diverse range of materials, including aluminum, steel, and exotic alloys, serving high-tech, aerospace, and medical device manufacturing industries. Comprehensive assembly services are also provided.

Hartland, WI

Based in Hartland, WI, Fathom Manufacturing offers contract manufacturing services, specializing in high-precision aluminum CNC machining. They provide tailored solutions for complex parts, focusing on tight tolerances and rapid production. Fathom serves demanding industries like aerospace, medical, automation, semiconductor, and automotive & EV.

Pflugerville, TX

Based in Pflugerville, TX, Four Points Platinum Machining and Manufacturing is a precision CNC machine shop offering comprehensive manufacturing solutions. They provide CNC milling and turning, fabrication, 3D printing, assembly, and engineering services. The company emphasizes superior quality and lower production costs for diverse manufacturing projects.

Fredericksburg, TX

Based in Fredericksburg, TX, Heartland Machining is an ISO9001:2015 + AS9100D certified provider specializing in production CNC machining. They offer full-service shaft and rod machining, including large diameter capabilities. The company processes diverse aluminum grades for highly engineered parts.

Waterford, WI

Based in Waterford, WI, HyPro Incorporated is a contract manufacturer specializing in precision custom metal parts. They offer CNC machining and assembly services for high-volume production, working with materials including aluminum, steel, and iron.

John Prosock Machine, Inc. is a CNC machining company based in Pennsylvania, established in 1982. The company specializes in CNC milling and turning, prototyping, precision machining, and assembly. They possess expertise in machining soft, non-ferrous metals, including aluminum.

Madison, AL

Based in Madison, AL, K&S Machining provides CNC machining services with in-house Mill-Turn Lathes, CNC Mills, and routers. They work with diverse materials like aluminum, carbon steel, brass, and plastic, serving Tier 1 and Tier 2 manufacturers, including aerospace and defense industries.

Bettendorf, IA

Based in Bettendorf, IA, LeClaire Manufacturing Co. specializes in high-quality aluminum prototype and complex CNC machining services. They utilize state-of-the-art machining centers to meet tight tolerances, offering engineering expertise and design assistance. As a single-source supplier, they prioritize quality assurance and on-time delivery for partners.

Germantown, WI

Based in Germantown, WI, Mahuta Tool Corp. provides custom CNC machining, turning, and milling. They specialize in rapid prototyping and manufacturing from metals, including aluminum, and plastics. Serving diverse industrial sectors, the company is ISO 9001:2015 certified for quality.

Necedah, WI

Based in Necedah, WI, Mitotec Precision specializes in delivering precision machined components. Since 1963, they have provided reliable, cost-effective solutions with a focus on quality and efficiency. Serving a wide range of industries and OEM markets, Mitotec is a direct provider of precision machining services.

Clearwater, FL

Based in Clearwater, FL, MSP Industries USA specializes in ultra-precise CNC machining for complex, high-performance aluminum parts. They provide 5-axis milling, multi-spindle, Swiss, and turning services for aerospace, automotive, defense, and medical industries. The company is ISO 9001:2015 certified.

Fort Worth, TX

Based in Fort Worth, TX, OGF Aerospace Manufacturing is a direct provider of manufacturing services, specializing in processes for the aerospace sector. The company is open Monday through Thursday, offering its specialized manufacturing capabilities to commercial clients and focusing on producing high-quality components.

Portland, OR

Based in Portland, OR, Portland Precision Manufacturing specializes in high-precision CNC machining, including advanced 5-axis capabilities. They expertly produce complex aluminum and various material designs into custom prototypes and production parts with tight tolerances of ±0.0005” or better. The company is AS9100D & ISO 9001-2015 certified and ITAR registered.

Based in Farrell, PA, Precision Steel Services Inc. specializes in aluminum extrusion fabrication. They provide comprehensive CNC machining, including milling, drilling, and tapping, on customer-supplied aluminum extrusions. Utilizing a 5-axis CNC router, the company also offers water jet and laser cutting, welding, and assembly.

Houston, TX

Based in Houston, TX, Rapid Ball Screw Repair, LLC specializes in repair and complete refurbishing of industrial machinery parts. The company utilizes in-house CNC machining and grinding services. They serve diverse sectors such as oil and gas, manufacturing, and aerospace, addressing various machining requirements.

Russellville, AR

Based in Russellville, AR, Taber Extrusions is a full-service supplier of aluminum extrusions, offering extensive aluminum CNC machining capabilities. They work with a full range of aluminum alloys, providing fabricated products for diverse industries including space and defense.

Hayward, CA

Based in Hayward, CA, TCI Aluminum North specializes in precision pre-machining services for aluminum components. Their comprehensive capabilities include twin milling, grinding, Blanchard grinding, and double disc grinding. The company works with aluminum stock to provide precise, custom-machined solutions for various industrial applications, focusing on quality and exact specifications.

San Diego, CA

Based in San Diego, CA, ARRK North America, Inc. provides comprehensive product development services, from rapid prototyping to production. Specializing in custom manufacturing, they help accelerate products to market. Their expertise includes aluminum rapid prototyping and producing functional components for various industries.

Carrollton, TX

Based in Carrollton, TX, Western Extrusions offers aluminum extrusion, fabrication, and machining services. They provide turnkey solutions with advanced finishing capabilities, including anodizing and painting for lengths up to 30 feet. The company ensures high-quality, consistent results and responsive service for industrial customers.

Bonnell Aluminum offers integrated robotic welding and CNC machining services for US-manufactured, custom fabricated, and finished aluminum extrusions. With end-to-end capabilities, they serve the Building & Construction, Automotive, and Industrial Equipment sectors. The company provides high-quality solutions, emphasizing services that go beyond mere extrusion.

Coppell, TX

Based in Coppell, TX, Jormac Aerospace Dallas specializes in manufacturing and finishing certified aircraft interior solutions. They offer creative design engineering and meticulous craftsmanship for components such as aircraft latches and control rods, serving commercial, VIP, business, and military aviation sectors.

San Jose, CA

Based in San Jose, CA, Pacific Prototype Manufacturing provides high-precision CNC machining and fabrication services. Specializing in complex, tight tolerance parts, they work extensively with aluminum, stainless steel, and titanium. Capabilities include 5-axis machining and rapid prototyping for medical, aerospace, robotics, defense, and automotive sectors.

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How to Choose a Company

  • Verify a supplier's proven experience and process controls for your specific aluminum alloy (e.g., 6061-T6, 7075-T6, 2024-T3) and temper, as different alloys dictate distinct tooling, cutting parameters, and thermal management to prevent warpage or achieve desired surface finishes.
  • For parts requiring tight geometric dimensioning and tolerancing (GD&T) or high-precision mating surfaces, confirm the supplier's inspection capabilities, including calibrated CMM (Coordinate Measuring Machine) accuracy, and their ability to provide comprehensive First Article Inspection (FAI) reports.
  • Assess their approach to chip evacuation and coolant management during high-material removal rates, especially for deep pocket features or thin-walled components, as inadequate strategies can lead to poor surface integrity, chatter marks, or material re-cutting.
  • For applications in regulated sectors like aerospace, defense, or medical devices, demand documented proof of specific certifications such as AS9100, ITAR registration, or ISO 13485, ensuring their quality management system meets industry-specific compliance requirements.
  • Be wary of quotes that do not explicitly address your specified surface finish requirements (e.g., Ra values) or offer vague commitments, as a lack of clarity here is a major red flag that often leads to unexpected additional costs for secondary finishing operations like media blasting or vibratory tumbling.

Frequently Asked Questions

How does aluminum alloy selection impact machinability and final part performance?

Different aluminum alloys offer varying machinability characteristics and end-use properties. For instance, 6061-T6 is highly versatile and machines well, offering good strength and excellent corrosion resistance. In contrast, 7075-T6, while significantly stronger, is more challenging to machine due to its hardness and tendency to generate heat, requiring specialized tooling and cutting strategies. Selecting the right alloy balances cost, machinability, and the specific mechanical or environmental demands of your application, such as stress resistance or weldability.

What are common causes of dimensional inaccuracy in machined aluminum parts, and how can they be avoided?

Dimensional inaccuracies in machined aluminum often stem from inadequate workholding, which can lead to part deflection; improper thermal management during high-speed machining, causing material expansion and contraction; or excessive tool wear. To avoid these, suppliers should utilize robust fixturing, employ effective coolant strategies and thermal compensation, and maintain strict tool monitoring and replacement schedules. Clear communication of critical dimensions and GD&T on drawings also helps avoid misinterpretations.

When should I specify a 5-axis machining process over a 3-axis for aluminum components?

Specify 5-axis machining for aluminum parts with complex, organic geometries, deep undercuts, or features requiring simultaneous access from multiple angles without re-fixturing. While more expensive per hour, 5-axis can reduce setup times, improve overall part accuracy by minimizing cumulative errors from multiple setups, and achieve superior surface finishes on contoured surfaces that would be difficult or impossible with 3-axis methods. For simpler prismatic parts, 3-axis is often more cost-effective.

How do I ensure my specified surface finish (Ra) for aluminum is cost-effective and manufacturable?

To ensure cost-effectiveness, only specify a tight Ra value (e.g., 32 Ra or finer) where it's genuinely critical for function, such as sealing surfaces or bearing fits. For non-critical cosmetic or internal features, a rougher finish (e.g., 63 Ra or 125 Ra) is significantly cheaper and faster to achieve. Discuss your Ra requirements with your machinist, as they can recommend the most efficient machining parameters, tooling, or secondary finishing operations (like bead blasting or vibratory tumbling) to meet your needs without over-processing the part.

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