🔋 EV battery shims & foils
0.10–0.30 mm Cu / Al strip, ±0.01 mm. Reel-to-reel
Automotive etching machine
Photochemical etching for EV battery shims, fuel-cell BPPs, sealing gaskets, sensor meshes and EMI shielding in passenger cars and commercial vehicles. 304/316L, Cu, Al, Ti — burr-free edges, ±0.02 mm, IATF-friendly documentation. Exported to Tier-1 automotive suppliers since 2003.
Automotive etching has three sweet spots: sealing surfaces (gaskets, BPP, battery can lids) where flatness and burr-free edges drive leak-tightness; current-carrier surfaces (bus bars, current collectors) where chemistry control drives resistance; EV hot zones (battery packs, inverters, motors) where burr-free is a battery-safety regulatory requirement. GE lines cover all three.
By sub-system
Automotive parts on GE lines
From gaskets to battery foils — every sub-system covered.
🔌 Current-collector tabs
Cu C110. Half-etch + bend-zone for cell-to-bus welds.
🛢 Engine & gearbox gaskets
304/316L steel; multi-layer composites available.
📡 Sensor meshes & shields
30–150 µm meshes, 0.10 mm shields. EMI/RFI shields
⛽ FCEV bipolar plates
316L / Ti BPPs for hydrogen fuel-cell stacks. BPP etching line
🌡 Inverter bus-bar shims
Cu & Cu-clad-Al; ±0.02 mm land. Cu etching line
Recommended configuration
Two automotive-typical lines
Reel-to-reel
Reel-to-Reel Etching Machine
- Strip width25–650 mm
- Strip thickness0.05–0.50 mm
- Line speed1.5–4.0 m/min
- Pad tolerance±0.02 mm
- Throughput≈5–8 m/min @ 200 mm-wide strip
For EV battery shims, current-collector tabs and Cu bus-bar shims.
Sheet / batch
Double-Sided Spray Etching Machine
- Working width650 mm × L
- Sheet thickness0.10–1.5 mm
- Land tolerance±0.02 mm
- ModeTwo-side simultaneous spray
- EtchantFeCl₃ / CuCl₂ / NaOH (alloy switch)
For BPPs, gaskets and sensor shields in 304/316L/Cu/Al.
Alloys
Automotive alloy chemistry
304 / 316L Stainless
FeCl₃ etchant. Gaskets, sensor shields, motor laminations. →
Copper C110 / C122
CuCl₂ etchant, additive-controlled. Bus bars, current collectors. →
Aluminium 3003 / 6061
Alkaline NaOH etchant. Battery enclosures, cooling plates. →
Titanium TC4
HF-mix. FCEV bipolar plates for hydrogen passenger cars. →
GE machine lineup
Automotive etching — pick the right machine
Three configurations cover EV battery shims, sealing gaskets & sensor meshes.
GE-JM650-W
GE-JM650-W — Gasket Production Line
Double-side spray for engine & gearbox gaskets, sealing surfaces.
| Power | 15 kW / 380 V |
| Sheet width | 650 / 1000 / 1220 / 1550 mm |
| Thickness | 0.10–1.5 mm |
| Land tolerance | ±0.025 mm gasket-seal standard |
| Tank volume | 800 L |
| Chemistry | FeCl₃ / NaOH (alloy switch) |
GE-RTR650
GE-RTR650 — EV Battery Shim Line
Continuous Cu / Al strip etching for EV battery shims & current collectors.
| Strip width | 25–200 mm |
| Strip thickness | 0.10–0.30 mm |
| Line speed | 5–8 m/min @ 200 mm |
| Half-etch depth | ±0.005 mm |
| Throughput | approx. 0.5–1.2 M shims / 24h |
| Inline modules | Laminate, expose, develop, etch, strip, wash, plate |
GE-JM650-T (BPP)
GE-JM650-T — FCEV Bipolar Plate
For passenger-FCEV BPP programmes — 316L / Ti-6Al-4V plates.
| Power | 45 kW / 380 V |
| Etching width | 650 mm |
| Plate thickness | 0.05–0.30 mm |
| Land tolerance | ±0.02 mm |
| Chemistry | HF + HNO₃ (Ti) / FeCl₃ (SST) |
| Safety | HF sensor, Ca-gluconate tank (PFA) |
More like this
Related etching lines & guides
Six things to read next — same chemistry, similar tolerances, or the next step in your process.
Fuel cell etching
FCEV bipolar plates for hydrogen passenger cars →
Medical device etching
ISO 13485-grade automotive / medical crossover →
Aerospace etching
AS9100-friendly Al & Ti EV shims →
Lead frame etching
AEC-Q100 connector lead frames →
EMI shielding etching
Inverter / ECU EMI shields →
Stainless steel etching machine
EV gaskets & battery shim material →
Building an automotive etching line?
Send your part drawing, alloy and annual volume. We'll spec the etch module, the chemistry switch and the IATF documentation pack.