Contact Us
Connect with our engineering and contract manufacturing team for technical consultations and precision component quotes.
Contact Our Precision Machining Engineering Team
Whether you require high-volume CNC multi-spindle production, Swiss precision turned components, or rotary transfer contract manufacturing, DuPage Machine Products is prepared to meet your exact technical specifications.
Corporate Headquarters & Manufacturing Facility
Facility Location
DuPage Machine Products
311 Longview Drive
Bloomingdale, IL 60108-2640
United States
Direct Communication Lines
Phone: 630-690-5400
Fax: 630-690-5504
Operating Hours: Monday – Friday: 8:00 AM – 5:00 PM CST (UTC-6)
Global Logistics & Purchasing Support
We service international OEMs and Tier-1 suppliers across North America, Europe, Asia, and Latin America with complete export compliance and worldwide freight handling.
Why Industry Leaders Choose DuPage Machine
With over 50 years of engineering expertise and a 245,000 sq. ft. state-of-the-art manufacturing plant, we offer unmatched scale, quality control, and turn-key manufacturing capabilities.
AS9100D Certified
Certified aerospace-grade quality management for mission-critical precision components.
ISO 9001:2015 Certified
Standardized quality assurance with 100% full dimensional traceability.
150+ Production Units
High-capacity multi-spindle and Swiss CNC platforms for high-volume orders.
PMPA Member
Active leader in the Precision Machined Products Association for industrial excellence.
Fast Response Commitment: Technical inquiries and RFQ submissions receive comprehensive engineering feedback within 24 to 48 business hours.
Guidelines for Requesting a Machining Project Quote (RFQ)
To expedite engineering analysis and obtain the most competitive contract pricing for your precision parts, please ensure your inquiry includes the following details:
Engineering Drawings
Attach 2D & 3D CAD files (STEP, IGES, DXF, or PDF format) with complete dimensional tolerances, GD&T, and surface finish requirements.
Material & Specifications
Specify raw material grades (Alloy Steel, Stainless, Brass, Aluminum), heat treatment, plating, or auxiliary secondary operations required.
Volume & Schedule
Provide annual estimated volume (EAU), initial batch size, packaging guidelines, and target delivery timelines for optimal machine scheduling.
Purchasing & Contracting FAQ
What is your typical turn-around time for RFQs?
Our engineering estimating team reviews drawing packages and provides comprehensive quotes within 24 to 48 hours for standard materials and specifications.
What production volumes do you specialize in?
We specialize in medium-to-high volume precision machining runs ranging from 10,000 to millions of pieces annually, using automated multi-spindle and rotary transfer machining.
What quality documentation is provided with shipments?
We provide full Material Test Reports (MTR), Certificates of Conformance (CofC), CMM Dimensional Inspection Reports, and PPAP Level 1-3 documentation upon request.
Do you support international shipping and logistics?
Yes. We support global OEM supply chains with FOB, FCA, or DDP shipping terms, specialized export packaging, and inventory management solutions (VMI/Kanban).
Ready to Discuss Your Precision Machining Requirements?
Connect immediately with our technical sales representatives to receive expert guidance, manufacturing feasibility feedback, and quick competitive quotes.