World-Class Quality Inspection & Metrology Standard
At DuPage Machine Products, quality assurance is embedded into every layer of our precision manufacturing process. Operating from our climate-controlled 245,000 sq. ft. facility, we continuously invest in next-generation optical and tactile metrology technologies. Our dedicated 2,800 sq. ft. Quality Control Metrology Lab ensures every precision component engineered for aerospace, medical, hydraulics, and automotive OEMs satisfies rigorous dimensional, geometric, and metallurgical standards.
Advanced Metrology Equipment & Inspection Systems
Our Quality Lab is equipped with industry-leading coordinate measuring machines (CMM), automated vision systems, and statistical process control (SPC) software designed for micro-inch tolerance verification:
ISO 9001:2015 & AS9100D Certified Management System
DuPage Machine Products operates in compliance with international quality standards. Our certified Quality Management System (QMS) enforces systematic risk mitigation, total traceability, and repeatable accuracy across multi-spindle, Swiss CNC, and rotary transfer machining runs.
AS9100D Certified
Certified for mission-critical aerospace, defense, and high-reliability precision component contract manufacturing.
ISO 9001:2015 Certified
Standardized quality management system ensuring continuous improvement, customer satisfaction, and strict process control.
Under our AS9100D and ISO 9001:2015 framework, DuPage Machine Products guarantees:
- Consistent Technical Compliance: Unyielding adherence to international statutory, regulatory, and customer-specific engineering prints and drawings.
- Enhanced Customer Satisfaction: Continuous verification through closed-loop feedback systems, proactive preventative actions, and full material lot traceability.
- Real-Time Statistical Process Control (SPC): Active monitoring during multi-spindle machining operations to detect process drift long before tolerance limits are exceeded.
Comprehensive Quality Control Workflow
From initial raw material receiving to final packaging, our quality control team follows strict standardized procedures:
Incoming Material Audit
Verification of raw bar stock chemical & mechanical mill test reports (MTR), hardness, and dimensional conformance before entering production lines.
In-Process First Article & SPC
First Article Inspection (FAI) per AS9102 standards, coupled with operator frequency checks and automated SPC charting during machining runs.
Final Metrology & Cleanliness
100% automated optical or CMM final dimensional verification, ultrasonic part cleaning, and customized protective packaging for international export shipment.