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Precision Sandwich Busbars for Compact, High-Current Builds

Layered conductors with controlled spacing and insulation, built in copper or aluminium by Capcier.

Contact us

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Made-to-drawing production

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Batch consistency focus

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Stage-wise inspection approach

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System-ready supply available

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Packing and identification included

What is a sandwich busbar and why teams choose it

A sandwich busbar stacks conductors with insulation between layers for compact, safer routing. Teams choose it for controlled spacing, cleaner assembly, and stable fit in tight power electronics layouts.

Where it helps most:
  • Compact paths needing controlled phase separation and clearances

  • Battery, inverter, converter builds needing repeatable layouts

  • Safer handling with less exposed metal in the assembly

  • Multi-point connections where stacking speeds install and service

Sandwich busbars we manufacture

Capcier manufactures sandwich busbars to your drawing with controlled fabrication and finishing in one workflow. We build in copper or aluminium as specified, with plating or defined insulation coverage where interface protection is required.

Types :
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Stacked conductors with insulation between layers for compact routing and safer phase separation. Ideal for dense assemblies where spacing consistency is non-negotiable.

Insulated Layered Sandwich Busbar

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Designed for multi-phase or multi-path connections where one aligned stack reduces wiring complexity and makes assembly faster.

Multi-Layer Phase Stack Busbar

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Built with defined end exposure, pad geometry, and hole accuracy so the part mounts cleanly and terminates predictably.

Interface-Ready Sandwich Busbar

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Sandwich busbars supplied with tin or nickel plating options where interface stability, oxidation control, or termination behaviour needs reinforcement.

Plated Sandwich Busbar

Build options you can specify

Title
Title Copy
Pack and dispatch
count per pack, protection needs, delivery format
Marking
embossing, part ID, batch marking
Insulation
insulation type, coverage area, end exposure
Finish
bare, tin plated, nickel plated
End details
pad areas, exposure zones, creepage/clearance notes
Hole and slotting
hole dia, slot size, pitch, edge distance
Size
width, thickness, length
Stack design
layers, phase order, spacing targets, alignment notes
Material
copper or aluminium, grade as per your spec

How we build sandwich busbars

We build sandwich busbars in-house to control layer alignment and insulation. Before production, we run a DFM check on holes, exposure, stack fit, and packing.

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CNC cutting and punching

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Deburring and buffing for cleaner edges

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Multi-axis bending for repeatable geometry demands it

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Tin or nickel plating, as required

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High-quality insulation, Rosen fitting, surface finishing, embossing, heat treatment

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Product traceability and dispatch-ready packaging

Where Sandwich Busbars Are Used

Sandwich busbars suit compact assemblies needing controlled spacing and cleaner installs than cable-heavy links. We manufacture them for many build types without pushing a single-industry story.

Power electronics and conversion systems

  • Inverters, converters, rectifier assemblies

  • Power distribution inside cabinets and skids

  • Compact, high-current interconnects

EV and energy storage builds

  • Battery systems, battery racks, power cabinets

  • High-current distribution within packs and modules

  • Charging and supporting power infrastructure

Industrial and OEM equipment

  • Drives, control panels, machinery power cabinets

  • Plant power systems and distribution assemblies

  • System builds where service access matters

Specialised high-reliability applications

  • Aerospace-grade power assemblies (as specified)

  • Controlled-layout builds with strict clearance needs

  • Projects where repeatability matters across programs

Why Choose Capcier for Sandwich Busbars

Sandwich busbars are about control, not just stacking metal. Alignment, insulation exposure, holes, interface finish, and packing must be right so installs stay fast. Capcier delivers build-ready layered busbars that repeat cleanly.

Three Wall Fountains
Build-to-drawing discipline

Layer order, spacing intent, insulation coverage, and end exposure aligned to your drawing.

Fit and interface control

Accurate hole patterns, stable alignment, clean edges, consistent termination surfaces.

Options that follow the use case

Copper or aluminium builds, plating and insulation only where your assembly needs it.

Clear quoting inputs

Requirement confirmation so procurement and production planning stay clean.

Repeat-order confidence

Consistent output and predictable packing and identification.

Send your sandwich busbar drawing or spec sheet.

We’ll confirm copper or aluminium, align the layer stack and insulation coverage, and revert with a quote ready for procurement and production planning.

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Send an enquiry

Give us your requirement and we will respond with a manufacturing-ready path.

Frequently asked questions

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