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30A 400V Medium Voltage E-Coat Rectifier for Mid-Range E-Coating Lines

    The Medium Voltage E-Coat Rectifier from Gaohui Rectifier delivers 30A at 400V for mid-range e-coating lines. This Medium Voltage E-Coat Rectifier powers a wide range of e-coating racks with stable DC output. Furthermore, the Medium Voltage E-Coat Rectifier uses water cooled IGBT stages that hold tight output stability under full load. Consequently, e-coating shops rely on it for uniform, repeatable films. Moreover, finishing facilities select this Medium Voltage E-Coat Rectifier for its water cooled design and 30A 400V capacity that keeps deposition rates predictable. Consequently, production planners factor it into daily schedules without derating concerns.

    Cooling: Water cooled | Application: Mid-Range E-Coating | Ripple: ≤5% | Interface: RS485/PLC

    Applications and Use Cases

    The 30A 400V rectifier bridges low-voltage tanks and high-voltage finishing stages. The higher 400V output reaches deep cavities, tubing interiors and long series racks where standard 150V falls short. For example, a welded frame with internal channels receives even film on inner surfaces. Furthermore, tight voltage regulation prevents the over-voltage bursts that burn edges. Moreover, the 400V headroom absorbs bus-bar and rack-contact losses on longer transfer runs. In addition, soft-start ramps protect thin film when large racks enter the bath.

    Moreover, this rectifier pairs water cooling with precise IGBT control so output stays firm under sustained load. In addition, it supports programmable multi-stage cycles for heavy films. Consequently, coating engineers choose it when parts demand deep throwing power rather than raw amperage. Moreover, line supervisors appreciate the water-flow interlock and thermal shutdown on this Medium Voltage E-Coat Rectifier. Finally, Gaohui Rectifier tunes the ramp profile to each customer's tank geometry.

    Technical Specifications

    ParameterValue
    DC Output Current0–30A adjustable
    DC Output Voltage0–400V adjustable
    Cooling MethodWater cooled
    Ripple Factor≤5% RMS
    Control ModeIGBT/PWM, CV/CC
    CommunicationRS485, optional PLC
    DimensionsCustomized to tank layout
    WeightCustomized
    Special FeatureDeep-throw voltage for cavities

    Specifications subject to change. Custom designs available upon request.

    We can provide: The product comes with a one-year warranty and boasts a service life of over 10 years. It supports both Constant Current and Constant Voltage modes, and it also includes a programmable ramp-up function for current or voltage settings. For time-sensitive applications, you can use the timed operation mode. Moreover, the multi-segment function allows you to vary constant current or voltage levels over time. The device further offers an RS485 communication interface, automatic polarity reversal, and a minute-level timing function. If you need customization, please contact us for further details.

    Medium Voltage E-Coat Rectifier Key Advantages

    • 400V output delivers deep throwing power into cavities and tubes
    • Closed-loop voltage control prevents edge burns
    • Soft-start ramp protects film on large racks
    • Water-cooled IGBT stages hold output through long cycles

    Furthermore, Gaohui Rectifier supports parallel N+1 expansion when line capacity grows. We provide remote commissioning and spare-part support worldwide. Consequently, you can scale from one tank to a full e-coating department without replacing the rectifier.

    Moreover, Gaohui Rectifier includes commissioning support and a documented maintenance plan with every Medium Voltage E-Coat Rectifier. Consequently, your engineers can schedule service without guessing intervals.

    Related Models:

    Need more current? Check the 100A 300V Mid Power E-Coat Rectifier.

    Need lower voltage? View the 30A 150V General E-Coat Rectifier.

    Frequently Asked Questions (FAQs) About Gaohui Power Supply

    Q: Do you have a price list for your products?

    A: Products with the same nominal specifications often serve different industries, and they may carry different detailed parameter requirements. These differences directly affect production costs and technical solutions, so final prices will vary accordingly. For this reason, we recommend you contact us directly to receive a precise and tailored quotation.

    Q: How can I obtain detailed technical specifications and images for a specific product?

    A: We assign specialized consultants to support each industry sector. If you need further information, simply reach out to us. After we confirm your request, we will immediately send you the full technical datasheets and product images you need.

    Q: What should I do if I cannot find the specific output current and voltage specifications I require?

    A: We focus on custom non-standard industrial power supplies, so we can fully adjust output current and voltage to match your exact needs. The products shown on our website only represent part of our actual range, as we do not list every model online. If you cannot find your desired specifications, please contact us directly. We will work with you to confirm your exact requirements, or we can guide you to select the most suitable parameters based on your industry standards. We will provide complete technical specifications and dimension drawings so you can fully understand the product.

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