01
Current Uniformity
Stable current density supports consistent copper thickness across the full drum width.
Electrolytic Copper Foil
Ultra-Stable DC Power for Battery-Grade Copper Foil.
QEEHUA high-current rectifier systems support continuous copper electrodeposition with low ripple, precise current control and long-duration stability for consistent foil thickness and surface quality.
Continuous drum deposition Ultra-low ripple DC 24/7 production duty
QEEHUA RectifierHigh Current DC
8–14 VTypical copper foil output
10–50 kACurrent range per drum
<0.5%Low-ripple process target
±0.1%24-hour stability target
Why the power supply matters
DC quality becomes copper foil quality.
On a rotating titanium drum, current distribution controls deposition rate and thickness uniformity. Ripple and long-run drift influence crystal structure, surface roughness and production yield.
Built around the foil line—not only the nameplate.Match current, voltage, ripple, cooling, busbar layout and automation to the drum, bath chemistry and target production speed.
02
Ultra-Low Ripple
Clean DC helps protect crystal structure, smoothness and tensile performance.
03
Long-Run Stability
Closed-loop regulation maintains output through continuous multi-hour production.
04
High Efficiency
Modern high-frequency conversion reduces losses in energy-intensive foil lines.
Copper foil process coverage
Configured around your deposition line.
QEEHUA matches the rectifier architecture to foil thickness, drum width, line speed, current density and the control strategy used across continuous production.
01 / BATTERY FOIL
Lithium Battery Foil
Low-ripple, high-current DC for demanding current-collector foil production.
02 / ULTRA-THIN
Ultra-Thin Copper Foil
Fine output control supports tight thickness tolerances and smooth surfaces.
03 / HIGH SPEED
Continuous Drum Lines
Stable full-load operation keeps deposition consistent as production speed increases.
04 / MULTI-ZONE
Width Uniformity Control
Load-sharing and segmented output options support wide-drum current distribution.
QEEHUA power solutions
Choose the rectifier platform your foil line needs.
Explore water-cooled and modular DC systems listed by QEEHUA for electrolytic copper foil and other high-current electrochemical processes.
Ultra-high currentView product →
Electrolytic Power Supply
N+1 high-power architecture for continuous copper foil and large-scale electrolysis.
OUTPUT0–45 V
CURRENT0–500 kA
Modular redundancyView product →
Water Cooled Modular Rectifier
High-efficiency modular DC with hot-backup support for continuous foil production.
OUTPUT0–12 V
CURRENT0–20,000 A
Synchronous rectificationView product →
Water Cooled Synchronous Rectifier
Compact, sealed and energy-efficient DC power for harsh electrochemical environments.
OUTPUT0–24 V
CURRENT0–2,000 A
Built around the line
Engineered for continuous copper foil production.
Current rating is only the beginning. QEEHUA reviews the electrical, thermal and control conditions that determine stable deposition and dependable uptime.
✓
Parallel current sharingModular architecture distributes high current and supports scalable line configurations.
✓
Water cooling for full-load dutyThermal design is matched to continuous current, site water conditions and ambient temperature.
✓
Low-ripple regulationFast closed-loop control helps protect foil thickness consistency and surface quality.
✓
PLC-ready integrationRemote control, communication and operating data support automated production management.
Before requesting a quote
Tell us how your copper foil line runs.
The right power architecture starts with the foil specification, drum system and production duty.
01
Foil product target
Foil type, target thickness, width, surface requirements and intended battery application.
02
Drum line & required output
Drum dimensions, line speed, current density, voltage range and continuous current.
03
Ripple & stability limits
Required ripple, current accuracy, 24-hour drift and cross-width uniformity strategy.
04
Cooling & installation
Cooling-water conditions, cabinet location, busbar distance and ambient environment.
05
Automation & acceptance
PLC protocol, data logging, interlocks, redundancy, FAT records and commissioning scope.
Manufacturing & quality
From line review to full-load testing.
Each project connects the specified electrical performance with practical assembly, cooling and control verification.
Requirement Review
Confirm foil target, drum system, line duty, ripple, cooling and control needs.
Electrical Design
Select power modules, busbar strategy, cooling circuits and control interfaces.
Assembly & Inspection
Complete cabinet wiring, cooling connections and production-stage quality checks.
Full-Load Testing
Verify output stability, protection response, communication and delivery records.
Ready to improve your
copper foil power?
Tell QEEHUA your foil specification and production requirements for a practical rectifier recommendation.