Electropolishing Rectification System – 15V 1000A Heavy-Duty DC Power Supply for Mirror Finish Surface Treatment

High-performance DC rectification engineered for electrolytic current removal and surface passivation. This 15V 1000A system operates as the inverse of electroplating, providing controlled anodic dissolution to deburr, polish, and refine metal surfaces. Built by a leading industrial high frequency rectifier factory, this unit eliminates micro-peaks and burrs, delivering a smooth, bright, uniform mirror finish on stainless steel and other alloys. It replaces inefficient low-frequency systems with high-stability, clean DC output critical for maintaining consistent surface roughness and corrosion resistance across the entire tank load. A precise voltage window from 12V to 50V DC (with this 15V unit targeting high-current polishing) ensures optimal phosphoric acid-based bath performance.
KEY FEATURES & ENGINEERING HIGHLIGHTS
High-Efficiency IGBT Inverter Topology: Utilizes the latest generation insulated-gate bipolar transistor switching technology, achieving conversion efficiency above 92% while reducing heat dissipation and operational costs. This design ensures minimal ripple—a non-negotiable requirement for achieving a high-gloss, defect-free surface finish.
Adaptive Constant Current / Constant Voltage Mode: Seamlessly switches between CC and CV regulation to manage varying surface area loads. The rectifier maintains set amperage during the initial aggressive polishing phase and transitions to voltage stabilization for final passivation and brightness.
Robust 3-Phase Input Compatibility: Engineered for mains voltages of 380VAC, 400VAC, or 480VAC, providing stable performance even under heavy industrial grid loads found in job shops and large-scale fabrication facilities.
Best-in-Class Ripple Filtering: Internal high-frequency filtering technology reduces output ripple to less than 5%. Low ripple prevents undesirable striping, pitting, and shadowing on complex geometries, ensuring a consistent surface profile from edge to center.
Space-Saving Modular Rack Design: The compact chassis footprint reduces floor space consumption compared to secondary rectifier style units, allowing for installation in tight production lines or near process tanks.
TECHNICAL SPECIFICATIONS TABLE
| Parameter | Specification | Tolerance/Note |
| :— | :— | :— |
| Output Current Range | 0 – 1000 Amps | Adjustable; Continuous Duty |
| Output Voltage Range | 0 – 15 Volts DC | Adjustable; Metered |
| Input Power Requirement | 380V / 400V / 480V ±10% 3-Phase | AC Only |
| Ripple (RMS) | ≤ 5% at Full Rated Load | Standard Setting |
| Operation Mode | Constant Current (CC) / Constant Voltage (CV) | Automatic Cross-over |
| Efficiency | ≥ 92% | At full output |
| Protection Class | IP20 (Standard) | Custom IP Ratings Available |
| Cooling Method | Forced Air / Liquid Cooled Options | Built-in thermostat control |
| User Interface | 7″ HMI Touchscreen or Digital Potentiometer | Programmable Profiles |
| Communication Protocol | RS485 Modbus RTU | Optional: Ethernet IP / Profinet |
| Dimensions (W x D x H) | 600mm x 700mm x 1400mm (Est.) | Validated on order |
| Weight | Approx. 120 kg | Varies by options |
| Ambient Temperature | 0°C to +45°C | Storage: -20°C to +60°C |
ADVANCED BUILT-IN PROTECTION SYSTEMS
Industrial-grade safety architecture prevents costly downtime and rectifier damage. The unit includes:
– Over-Voltage Protection (OVP): Instantaneous shutdown if output exceeds set threshold due to load shedding.
– Over-Current Protection (OCP): Electronic current limit prevents catastrophic failure from shorted tank work pieces.
– Over-Temperature Protection (OTP): Automatic fan speed modulation and shutdown above 75°C baseplate temperature.
– Short Circuit Protection: No-fuse electronic current limiting with rapid reset after fault removal.
– Phase Loss & Input Surge Protection: Monitors incoming AC mains; warning signal if line disturbance occurs.
– In-Rush Current Limiting: Soft-start circuit prevents main breaker tripping on initial startup.
TARGET INDUSTRIAL APPLICATIONS
Stainless Steel Electropolishing: Produces a bright, passivated, and burr-free surface for food processing, pharmaceutical, semiconductor, and architectural components. Ideal for removing heat tint and weld discoloration.
Electrochemical Deburring (ECD): Removes sharp metallic protrusions from hydraulic valves, aerospace fasteners, and medical implant components without mechanical grinding stress.
Mirror Finish Polishing: Achieves a near-optical surface finish on 304L, 316L, and 17-4PH stainless steel, eliminating surface peeling or smut for high-value cosmetic parts.
Industrial Cleaning & Oxide Removal: Refines internal bores, tubes, and complex channel geometries that cannot be mechanically abraded or buffed.
CUSTOMIZATION AND TAILORED ENGINEERING SERVICES
As a specialist IGBT rectifier manufacturer, we deliver fully configurable ranges to match exact electrofinishing requirements. Our factory integration spans 1V-1000V and 1A-100,000A with AC input and DC output only. All systems are factory-bench tested under load per customer cycle.
Standard and Optional Module Upgrades:
– Process Timer: Programmable from seconds to hours with end of cycle audible alarm and auto-off.
– Multi-Stage Profile Control: Program up to 64 sequential steps (current, voltage, time) for complex finishing recipes.
– Ampere-Minute Integrator: Real-time coulomb accumulation for plate thickness measurement or bath life tracking.
– Automatic Reverse Polarity: Switch anodic/cathodic output for periodic cleaning or mixed surface treatments.
– Remote I/O Interfaces: Ethernet TCP/IP, Modbus RTU, 4-20mA analog, and dry contact relays for PLC/DCS integration.
– Pulse Function: Adjustable frequency 1 Hz – 3000 Hz with duty cycle control; improves finishing speed and depth of penetration on irregular surfaces.
For a precise custom current voltage rectifier quote, specify tank dimensions, load surface area, desired finish Ra, and bath chemistry. Request a real-time heavy-duty DC power supply price from our engineering team based on your exact process parameters.