+1 (262) 255 0223

DEFENSE & AEROSPACE

Engineered for Mission-Critical Performance. Built for Compliance.

Electronics manufacturers face rising demands for miniaturization, signal integrity, and EMC—where small errors cause big failures.

Gromax
delivers precision-stamped components with tight tolerances, fine features, and shielding, providing production-ready, fully documented solutions that help OEMs and Tier 1/2 suppliers build reliable, compliant devices and accelerate time to market.

Production-Ready Stamped Parts

Production-ready components engineered for signal integrity, dimensional precision, and EMI compliance.

Overmold-Ready Inserts for Sensor Housings

Metal inserts designed for integration into injection-molded sensor housings for added function and strength for:

• Automotive sensors
• Industrial automation sensors
• IoT device housings
• Medical diagnostic devices

Fine-Feature Terminals & Contacts

Precision contacts designed for reliable electrical connections in compact, high-density circuits for:

• Sensor modules
• PCB connectors
• Micro-relays
• MEMS device packaging

Press-Fit Pins & Interconnects

Stamped pins that create secure mechanical and electrical connections in PCBs without soldering for:

• Circuit board assemblies
• Backplane connectors
• Power/signal modules
• Telecommunication switches

Overmold-Ready Inserts

Prepped for insert molding into electrical connectors and assemblies for:

• Electrical Connectors
• Sensor Assemblies
• Power Cord Plugs and Receptacles
• Control Switches and Pushbuttons

Custom Brackets & Clips

Stamped supports that secure or align components within electronic and mechanical assemblies for:

• Electronic enclosures
• Board mounting assemblies
• Signal routing hardware
• Sensor mounting frames

Grounding & Contact Springs

Stamped springs that ensure electrical grounding and EMI shielding through sustained contact pressure.

• EMI suppression systems
• PCB grounding paths
• Wearable electronics
• Mobile device enclosures

Fully Integrated Manufacturing Partner

We manage the entire process—from design input to production and compliance documentation—so you get precision, consistency, and reliability in every electronic component.

Engineering Design & Pre-Production

Helps prevent design revisions or late-stage EMI test failures.

 

We collaborate with your engineers to optimize stamped components for signal integrity, EMI shielding effectiveness, and miniaturized footprints—reviewing material conductivity, plating specs, and tolerances for manufacturability.

Rapid Protoyping

Speeds up regulatory testing and functional validation.

 

Accelerate product validation with production-intent prototypes for shields, contacts, terminals, or sensor inserts—enabling fit, function, and shielding validation before scaling up.

Tool & Die Design + Manufacturing

Delivers tooling that achieves fine-feature tolerances for electronic components.

 

Our in-house die shop builds progressive dies capable of stamping thin-gauge conductive alloys (beryllium copper, phosphor bronze, stainless steel), incorporating precision coining, embossing, and formed features.

Precision Metal Stamping

Ensures critical electrical and mechanical function in dense electronic assemblies.


We achieve tolerances down to ±0.0015” with clean shearing and burr control to support electrical continuity, tight assembly stackups, and surface readiness for plating or shielding effectiveness.

Assembly & Secondary Operations

Reduces coordination of multiple post-stamping suppliers.

 

We coordinate plating (tin, nickel, silver, gold to ASTM specs), spot welding, or mechanical assembly—delivering plating-ready or partially assembled shields, contacts, or sensor housings.

Quality Assurance & Lifecycle Support

Ensures compliance and documentation readiness for regulated electronics.

 

Every component ships with full compliance documentation (PPAP, FAIR, CMM, material/plating certs, traceability), supporting IEC, UL, RoHS, and audit requirements.

How We Add Value

We achieve tolerances down to ±0.0015” to ensure critical fit in high-density electronic assemblies.

Our stamping process controls burrs and surface finish to meet plating specs for conductivity and corrosion resistance.

We minimize burr height to protect sensitive contact interfaces and signal paths.

We stamp thin conductive alloys down to 0.002” with precision, minimizing distortion and maintaining. flatness

Every production lot is fully traceable for material, process, and compliance audits.

We deliver full documentation tailored to electronics QA, compliance, and launch milestones.

Our engineers collaborate to design inserts optimized for reliable insert molding into sensor housings.

Your Problems Solved

Here’s what we hear from electronics & sensor industry leaders—and how we help.

We design progressive dies to incorporate controlled embossing and forming to prevent cracking while maintaining shield effectiveness.

We provide production-intent prototypes with expedited tooling to validate form, fit, shielding effectiveness, and plating prior to volume production.

We achieve ultra-tight tolerances and critical dimension control, verified with CMM reports, to prevent assembly misfits.

We deliver integrated plating and secondary assembly operations, reducing supplier handoffs and simplifying your supply chain.

We proactively deliver PPAP, FAIR, CMM, and material certs with every production lot—ready for your QA and compliance teams.

Engineer Your Next Electronic Breakthrough

Upload your drawing or RFQ to request a quote for precision-stamped, compliance-ready electronic components built to your production needs.

Copyright © 2024 Gromax Precision Die & Mfg. Inc. ​

info@gromaxprecision.com

W185 N11474 Whitney Drive Germantown, WI 5302