Global OEM Precision Manufacturing

Industries Served

High-Precision Custom Turned Components Engineered for Critical Applications Worldwide

Global Manufacturing Partner

Custom Component Solutions for Demanding Applications

DuPage Machine Products is a premier contract manufacturer specializing in high-volume precision component manufacturing. Operating out of our 245,000 sq. ft. AS9100D & ISO 9001:2015 certified facility, we utilize over 150 high-performance CNC multi-spindle, Swiss CNC, and rotary transfer machines to produce tight-tolerance components for global OEMs and Tier-1 suppliers.

Hydraulics & Fluid Power

High-volume production of precision sleeves, spools, pistons, cages, valve bodies, and hydraulic adapters built for zero-defect, leak-free operation under extreme pressures.

Commercial Automotive

Tough, reliable precision-turned components for heavy-duty commercial trucks, powertrain systems, braking assemblies, and transmission controls.

Aerospace & Defense

AS9100D certified flight-critical components engineered from high-temp alloys and titanium with complete lot traceability and AS9102 FAI documentation.

Medical Devices

Swiss CNC single-spindle micro-precision components for surgical devices, diagnostic equipment, and medical implants with ultra-fine surface finishes.

Hydraulics and Fluid Power Machining

Fluid power systems require strict dimensional repeatability and flawless surface finishes to prevent internal cross-port leakage and withstand continuous high pressure. At DuPage Machine Products, we specialize in high-volume machining of complex hydraulic valve components engineered to demanding OEM specifications.

Core Component Capabilities:

  • Precision sleeves, spool valve bodies, control pistons, poppets, and cartridge cages
  • Sub-micron cylindrical grinding, honing, and automated deburring for superior seal life
  • Ultrasonic parts cleaning meeting rigorous ISO 4406 fluid cleanliness standards

Commercial Automotive Precision Components

Tier-1 automotive suppliers and heavy vehicle OEMs demand high-volume production efficiency without compromising on quality or delivery timelines. Our multi-spindle and rotary transfer machining platforms enable rapid cycle times for turned components used in commercial trucking, bus, agricultural, and off-highway equipment.

Automotive Applications & Quality Control:

  • Fuel injection sleeves, engine sensor housings, turbocharger fittings, and brake actuation pins
  • Full PPAP documentation, Statistical Process Control (SPC), and lean Kanban replenishment support
  • High-speed multi-spindle turned parts with tight tolerances down to ±0.0005 inches

Aerospace & Defense Contract Manufacturing

Aviation and defense applications require uncompromising safety, durability, and material compliance. DuPage Machine Products holds AS9100D certification, maintaining strict quality management standards throughout every step of raw material receiving, CNC machining, secondary finishing, and inspection.

Aerospace Expertise:

  • Machining capabilities for high-temperature alloys including Titanium, Inconel, 15-5PH/17-4PH Stainless, and Aluminum
  • Flight-critical hydraulic actuators, fuel system fittings, landing gear components, and fasteners
  • Complete raw material traceability, CMM dimensional reports, and AS9102 FAI documentation

Medical Device Precision Machining

Medical devices require intricate micro-machining with absolute precision and contamination-free finishing. Utilizing our advanced Swiss CNC single-spindle lathes, we produce small-diameter, complex medical components to exact micro-tolerances for global healthcare OEMs.

Medical Machining Strengths:

  • Micro-precision turning with tolerances down to ±0.0002" (0.005mm)
  • Machining of biocompatible metals including 316L Stainless Steel, Titanium Grade 5, and PEEK
  • Precision turned shafts, surgical tool components, housing inserts, and diagnostic probe fittings

Specialty & Custom Industrial OEM Applications

When your engineered component requires unique geometries, specialized secondary operations, or custom tooling, DuPage Machine Products provides comprehensive contract manufacturing solutions tailored to your technical drawings. With over 50 years of experience, our engineering team optimizes component design for manufacturability (DFM) to reduce unit cost while maintaining flawless quality.

Proven Industry Leadership

Over 50 Years of World-Class Precision Manufacturing

Equipped with 245,000 sq. ft. of climate-controlled shop space, 150+ high-end production machines, AS9100D & ISO 9001:2015 certifications, and an unwavering commitment to on-time delivery, DuPage Machine Products stands ready to support your high-volume component procurement needs globally.

Need Custom Precision Parts for Your Industry?

Connect directly with our technical procurement engineering team to review your drawings, material specifications, and production timelines.

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