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Electronics & Sensors
From lead frames to EMI shields, Gromax delivers stamped components that meet the demands of miniaturization, signal integrity, and high-reliability electronics.
Electronics Require Precision—Gromax Delivers It.
We stamp thin-gauge metals, conductive alloys, and engineered materials for lead frames, EMI shields, sensor mounts, and insert-mold parts. Our parts meet tight tolerances, plating requirements, and miniaturization needs—with burr-free edges, dimensional accuracy, and form integrity from prototype to production.
Why Electronics & Sensor OEMs Choose Gromax
Thin-Gauge Precision Stamping
We stamp materials down to 0.001” thick, including beryllium copper, phosphor bronze, nickel silver, and stainless steel, with ±0.0015” tolerances for fine-feature components like lead frames, contacts, and shields.
In-Die Feature Integration
We integrate features directly into the stamping die, including coining for contact points, embossing for EMI performance, lances and extrusions for press-fit terminals, and laser marking for traceability—reducing secondary operations and improving consistency.
Plating & Shielding Finishes
We manage plating in compliance with ASTM B545, ASTM B700, and MIL-DTL-26074, delivering tin, nickel, silver, and selective plating to enhance conductivity, solderability, and shielding properties.
Micro-Forming & Burr-Free Control
Our tooling is designed for sharp-edge control and micro-forming of small geometries, minimizing burrs that could interfere with signal paths, mating connectors, or high-density assemblies.
Dimensional Validation & Custom Gaging
We validate critical dimensions using CMM (±0.0005”), optical comparators, SPC, and custom gages—supporting GD&T-defined tolerances and inspection data traceable to each lot.
Insert-Mold-Ready Stampings
We supply pre-formed, plated, and dimensionally validated stampings for insert molding, reducing prep work for sensor housings, smart devices, and overmolded electronics.
Solving Critical Electronics & Sensor Challenges
“We’re seeing burrs interfere with solder joints on our lead frames.”
We engineer tooling for burr-free shearing, fine-edge control, and validated post-stamp brushing or deburring where needed.
“Our EMI shield form factors are distorting during bending.”
We engineer tooling for burr-free shearing, fine-edge control, and validated post-stamp brushing or deburring where needed.
“We need selective plating for contact areas only.”
We deliver selective plating per drawing requirements, with plating certs traceable to ASTM/MIL specs and lot-level documentation.
“Our insert-molded terminals need consistent dimensional stability for mold fit.”
We hold tight form and flatness tolerances validated with CMM and custom gaging to ensure seamless fit in automated mold tooling.
Supported OEM Applications
Gromax delivers precision-stamped components engineered for the unique demands of electronics and sensors—combining tight-tolerance stamping, in-die features, compliant plating, and certified quality from prototype to production.
Progressive Die Stamping
Progressive Die Stamping
• Stamping thin-gauge metals down to 0.001” thickness
• Materials include C110 copper, beryllium copper, phosphor bronze, nickel silver, stainless steel
• Achieving ±0.0015” tolerances for fine-feature components
• Designed for lead frames, EMI/RF shields, sensor mounts, internal clips
• Class A tooling ensures sharp edge control and consistent form accuracy
• Materials include C110 copper, beryllium copper, phosphor bronze, nickel silver, stainless steel
• Achieving ±0.0015” tolerances for fine-feature components
• Designed for lead frames, EMI/RF shields, sensor mounts, internal clips
• Class A tooling ensures sharp edge control and consistent form accuracy
In-Die Operations
In-Die Operations
• Coining for improved electrical contact points
• Embossing for EMI shielding performance
• Pierce-and-extrude features for press-fit applications
• Lances and tabs formed inline for mounting or electrical connectivity
• In-die laser marking for part serialization without slowing production
• Embossing for EMI shielding performance
• Pierce-and-extrude features for press-fit applications
• Lances and tabs formed inline for mounting or electrical connectivity
• In-die laser marking for part serialization without slowing production
Plating
Plating
• Tin, nickel, silver, and selective plating available for electrical applications
• Compliant with ASTM B545, ASTM B700, MIL-DTL-26074 standards
• Enhances conductivity, solderability, and corrosion resistance
• Provides plating certs and traceable lot-level documentation
• Compliant with ASTM B545, ASTM B700, MIL-DTL-26074 standards
• Enhances conductivity, solderability, and corrosion resistance
• Provides plating certs and traceable lot-level documentation
Inspection
Inspection
• CMM inspection with ±0.0005” resolution for critical dimensions
• SPC data collection and reporting for production control
• Optical comparator for profile and form validation
• Custom gaging for high-repeatability features and GD&T compliance
• Inspection results available lot-level or serialized per part ID
• SPC data collection and reporting for production control
• Optical comparator for profile and form validation
• Custom gaging for high-repeatability features and GD&T compliance
• Inspection results available lot-level or serialized per part ID
Certified Quality
Certified Quality
• First Article Inspection Reports (AS9102) for new production
• PPAP Level 1–3 submissions per customer and industry requirements
• Certificates of Conformance (CofC) and IMDS declarations included
• Provides audit-ready documentation for compliance and traceability
• PPAP Level 1–3 submissions per customer and industry requirements
• Certificates of Conformance (CofC) and IMDS declarations included
• Provides audit-ready documentation for compliance and traceability
Serialized Marking
Serialized Marking
• Laser etching of part numbers, lot codes, serialized IDs
• MIL-STD-130 UID marking for defense/electronics traceability
• QR code, barcode, 2D matrix codes for part-level or lot-level tracking
• MIL-STD-130 UID marking for defense/electronics traceability
• QR code, barcode, 2D matrix codes for part-level or lot-level tracking
Tooling Lifecycle Support
Tooling Lifecycle Support
• Scheduled preventive maintenance to extend die life
• Wear tracking and inspection of tooling components
• Spare insert inventory management for quick changeovers
• In-house rapid die repair to minimize production downtime
• Wear tracking and inspection of tooling components
• Spare insert inventory management for quick changeovers
• In-house rapid die repair to minimize production downtime
Ready to Build Smarter Electronics with Precision-Stamped Components?
Partner with Gromax for lead frames, EMI shields, sensor mounts, and insert-mold-ready parts—delivering precision, plating, and performance from prototype to production.