EMI/RF shields &
grounding components
Built for reliable fit and continuity.
EMI/RF parts only work when they seat correctly and maintain a dependable electrical path.
Small changes in flatness, contact force, plating, burr direction, or formed geometry can affect shielding performance and final assembly fit.
Gromax supports stamped shields, cans, covers, clips, contact fingers, connector shells, and grounding components for electronic, sensor, medical, defense, industrial, automotive, and molding-integrated products.
EMI/RF Shields
Stamped metal shields used to contain emissions, block outside interference, and protect sensitive circuits in electronic assemblies.
Shield Cans
Board-level stamped enclosures that cover processors, RF modules, power circuits, sensors, and other noise-sensitive components.
Board-Level Shield Frames
PCB-mounted frames used with removable covers where flatness, solderability, grounding, and rework access matter.
Grounding Clips
Stamped spring clips used to create reliable ground paths between PCBs, housings, covers, shields, and enclosures.
Contact Fingers
Precision spring contacts designed to maintain electrical continuity through controlled contact force and repeatable deflection.
Antenna Contacts
Stamped conductive contacts used to connect antennas to RF, wireless, communication, and IoT electronic assemblies.
Connector Shells
Stamped metal shells used to provide shielding, grounding, strain protection, and mechanical support in connector and cable assemblies.
Shield Retention Clips
Precision stamped clips used to hold shields, covers, and enclosures in place while maintaining electrical contact.
common applications
Busbar-related stampings are used where current routing, grounding, retention, spacing, and power-interface stability directly affect the finished OEM assembly.
Air Circuit Breaker
Stamped EMI shields, grounding clips, board-level shield covers, spring contacts, and conductive brackets can be used around trip electronics, metering boards, communication modules, and control interfaces inside smart circuit breakers.
5G mmWave RF Connector / Antenna Module
RF shields, antenna grounding contacts, stamped spring fingers, and small shield cans can support compact 5G antenna modules where signal integrity and tight PCB packaging matter.
Miniature Rugged Circular Connector
Stamped grounding springs, EMI contact bands, connector shield shells, and retention clips can be used to maintain shell-to-shell continuity, cable shield termination, and vibration-resistant grounding in compact military and aerospace connectors.
On-Machine I/O Module
Stamped board shields, grounding clips, contact fingers, and conductive enclosure contacts can help protect field I/O electronics, IO-Link circuits, and sensor/actuator interfaces from electrical noise on industrial machines.
Transport Patient Monitor
Precision shield cans, grounding springs, board-level contacts, conductive clips, and connector grounding features can be used around patient measurement electronics, plug-in parameter modules, wireless circuits, batteries, and docking interfaces.
Overmolded M12 Cable Assembly
Stamped connector shells, cable shield termination rings, grounding contacts, EMI sleeves, and retention clips can be insert-molded or captured inside overmolded circular connector bodies.
when
GROMAX
is a good fit
Fit And Seating Must Stay Repeatable
Shield cans, covers, frames, and connector shells need consistent geometry so they seat correctly against the PCB, housing, enclosure, or mating component.
Flatness And Coplanarity Matter
Board-mounted shields and grounding parts may require controlled flatness so solder joints, contact points, and ground paths remain consistent across production.
The Ground Path Is Function-Critical
Grounding clips, contact fingers, and shield interfaces must maintain continuity through:
• Tolerance variation
• Vibration
• Housing movement
• Repeated assembly
• Temperature change
• Surface wear
Spring Contact Performance Must Be Controlled
Contact fingers and grounding clips may require repeatable preload, deflection, contact pressure, and resistance to permanent set.
Burr Direction And Edge Condition Matter
Burrs, rollover, fracture zones, and sharp edges can affect:
• PCB seating
• Soldering
• Grounding surfaces
• Mating components
• Wire routing
• Operator handling
• Enclosure fit
High-Volume Repeatability Is Required
Progressive tooling is often a strong fit when the program needs stable dimensions, consistent forming, clean features, and long-term production control.
What We Review - Before Tooling or Quoting
• Shield or grounding geometry
• Material and thickness
• Flatness and coplanarity
• Grounding points
• Spring-contact features
• Contact force and deflection
• Burr direction
• Edge condition
• Plating or finish
• Solderability
• Mating PCB or housing
• Retention method
• Annual volume
• Inspection approach
• Packaging and handling
This helps identify seating, grounding, forming, and assembly risks before tooling decisions are locked.
What We Review - Common Problems
• Inconsistent grounding
• Shield lift or poor seating
• Coplanarity problems
• Weak contact pressure
• Loss of spring force
• Soldering fallout
• Warping or distortion
• Burr-related PCB damage
• Loose shield retention
• Poor enclosure contact
• Surface-finish variation
• Cracking at formed features
• Dimensional drift
• Assembly interference
Common Material Options
• Stainless steel
• Nickel silver
• Copper alloys
• Brass
• Beryllium copper
• Cold-rolled steel
• Tin-plated copper
Pre-plated strip
Common Finishes
• Tin
• Nickel
• Silver
• Gold
• Passivation
• RoHS-compliant finishes
Have a shield or grounding component you’d like us to review?
Do not include Controlled Unclassified Information (CUI), ITAR-controlled technical data, or EAR-controlled export-controlled information in your initial email or RFQ submission.
If your request involves export-controlled or regulated technical data, note that in your message and we’ll provide secure transmission instructions.
Export Control
& Confidentiality Notice
To comply with ITAR, DFARS, and applicable U.S. export control regulations, Gromax does not display actual customer parts, drawings, specifications, or technical data in public-facing materials.
Images shown are illustrative only and are used to represent Gromax’s design and manufacturing capabilities. They do not contain proprietary, controlled, or export-restricted information.