Stamped and machined insulating washers and spacers for terminal and busbar assemblies.
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Precision epoxy glass washers for terminal and busbar insulation.
Arc-resistant washers and spacers punched or machined to drawing.
Stamped washers are held to the sheet tolerance, typically +/-0.05 to +/-0.10 mm depending on material and thickness. Tighter flatness or ID/OD is done by machining.
G10/FR-4 and GPO-3 cover most switchgear temperatures to 155 °C class. For hotter duty we move to higher-grade epoxy or ceramic-filled composites, tell us the service temperature.
On thin-wall vulcanized fiber sections of Insulating Washers and Spacers in G10, FR-4 we hold ±0.05 mm on ID and OD as a working figure. Knurl pitch, major and minor diameter and position are reviewed per drawing, and capability is confirmed against your print rather than published as a blanket claim.
No. Arc-facing surfaces on Insulating Washers and Spacers in G10, FR-4 call for ceramic-filled epoxy glass, melamine or a synthetic arc-quenching composite. Vulcanized fiber belongs on non-arc-facing mechanical bodies and end caps.
Every batch of Insulating Washers and Spacers in G10, FR-4 traces back to the incoming material certificate. Material COA, first-article inspection, in-process checks and final inspection reports are supplied per your quality plan on request.
Send the drawing for Insulating Washers and Spacers in G10, FR-4 with the material grade, dimensions, tolerance and annual quantity. We match the grade and reply with manufacturability notes and a quotation.