thin foils
Built for precision where thickness, flatness, edge condition, and handling matter.
Gromax manufactures precision stamped foil components from 0.0005" to 0.0070" thick for applications where dimensional consistency, material handling, flatness, burr control, and distortion resistance are critical.
We review material, temper, strip condition, feature size, edge requirements, carrier strategy, tooling clearances, finish, and downstream handling to support repeatable production.
part examples
Precision Foil Shims
Thin flat stampings used to control spacing, preload, clearance, alignment, or dimensional stack-up in mechanical and electromechanical assemblies.
Thin Electrical Contacts
Fine-gauge conductive stampings used where low mass, compact geometry, controlled contact shape, or limited package space is required.
EMI/RF Shielding Foils
Thin conductive shields, tabs, or covers used to provide localized electromagnetic shielding, grounding, or electrical continuity.
Sensor & Instrument Foils
Thin stamped elements used in sensors, instrumentation, diagnostic devices, and other assemblies where low thickness and precise geometry are important.
Foil Washers & Spacers
Thin annular or shaped stampings used for spacing, isolation, tolerance adjustment, or load distribution.
Thin Formed Foil Components
Light-gauge stampings with bends, tabs, embossments, or shallow formed features used in compact electrical, electronic, medical, and mechanical assemblies.
Not sure where your part fits?
part design essentials
Successful foil stamping depends on controlling the material and process at a scale where small changes in clearance, handling, or forming can have a large effect on the finished part.
Material Thickness & Temper
Thickness variation, hardness, ductility, tensile strength, conductivity, and temper influence blanking, forming, springback, and part stability.
Flatness & Distortion
Residual stress in the strip, blanking forces, uneven material removal, carrier design, and handling can contribute to curl, bow, twist, or local distortion.
Edges & Burr Control
Burr height and direction become increasingly important as material thickness decreases, particularly where parts mate, slide, seal, contact electronics, or are handled during assembly.
Carrier & Part Handling
Very thin parts can be difficult to feed, separate, stack, transport, or automate, so carrier-strip design, part support, packaging, and downstream handling should be considered early.
Forming Thin Material
Bend radius, grain direction, feature spacing, tool support, and springback must be controlled carefully to avoid wrinkling, tearing, or unwanted deformation.
from DfM to Production
Gromax supports thin-foil stamping programs from drawing review through repeatable production.
Part & DfM Review
Review the drawing, material, thickness, temper, feature size, flatness, edge requirements, finish, handling method, and production volume.
Progressive Die Design & Build
Develop tooling for the required piercing, blanking, notching, lancing, coining, embossing, shallow forming, and cutoff operations.
Precision Foil Stamping
Establish a repeatable process around critical feature size, edge condition, flatness, formed geometry, and dimensional consistency.
Finishing & Secondary Operations
Incorporate plating, cleaning, deburring where appropriate, heat treatment when applicable, laminating, assembly, or other downstream operations into the production plan.
Production Support
Support ongoing programs with tool maintenance, dimensional review, strip and material evaluation, process monitoring, root-cause analysis, and corrective action.
quality & assembly fit
Inspection should verify the characteristics that determine whether the foil component will fit, remain stable, and function correctly in the finished assembly.
Material Thickness
Incoming and finished-part thickness where thickness is functionally critical.
Flatness & Form
Bow, curl, twist, local distortion, and formed height where specified.
Critical Features
Hole size, slot width, web width, profile, spacing, and feature position.
Edges & Surface Condition
Burr direction, edge quality, scratches, dents, contamination, and specified plating or finish.
Assembly Fit
Fit within mating components, clearance, stack-up, contact location, and handling condition during final assembly.
Gromax checks critical dimensions using standard measurement, optical inspection, fixtures, custom gaging, or functional inspection methods and reviews your certification, traceability, and inspection documentation needs.
Have a Thin Foil Part You’d Like Us to Review?
Developing a new foil component or evaluating another source? Tell us about the application, material, thickness, temper, feature size, flatness or edge requirements, finish, production volume, and the distortion, handling, or quality issue you need to resolve.
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.
Customer Confidentiality
& Export Control Notice
To protect customer confidentiality and controlled technical information, Gromax does not publicly display customer-specific drawings, specifications, or sensitive part details without appropriate authorization.
Images shown are illustrative only and are used to represent the types of parts, geometries, and manufacturing capabilities Gromax supports. They do not depict specific customer designs or proprietary technical data.