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300A 12V Air-Cooled Gun Black Rectifier for Gunmetal and Black Chrome Hardware

    The Gun Black Rectifier from Gaohui Rectifier powers gunmetal and black chrome plating on hardware and firearms accessories. This Gun Black Rectifier delivers stable DC for dark decorative finishes. Furthermore, the Gun Black Rectifier supports continuous rack plating. Therefore, hardware manufacturers specify it.

    Cooling: Forced Air | Application: Gunmetal & Black Chrome | Ripple: ≤3% | Input: 3-Phase

    Applications and Use Cases

    The 300A 12V rectifier shops plating gunmetal black on buckles and accessories. Gunmetal baths run at 1 to 3 A/dm² for 2 to 5 minutes. Specifically, a rack of 30 buckles draws 150 to 250A. Furthermore, the 12V output covers both gunmetal and black chrome.

    Moreover, the rectifier supports timed cycles for consistent darkening. Consequently, every buckle comes out the same shade.

    Moreover, the 3-phase input balances factory power. Your electrician will appreciate the clean power factor. Consequently, the rectifier fits in any commercial workshop.

    Technical Specifications

    ParameterValue
    AC Input VoltageAC 380V ±10%, 3-phase
    DC Output Current0–300A adjustable
    DC Output Voltage0–12V adjustable
    Cooling MethodForced air
    Ripple Factor≤3%
    TimerDigital, 0–99 min
    Control ModeIGBT/PWM, CV/CC
    Dimensions600 × 500 × 300 mm
    Weight85 kg
    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.

    Gun Black Rectifier Key Advantages

    • Digital timer ensures consistent gunmetal shade
    • Air-cooled near the plating tank, no water
    • Handles buckles, firearms accessories, hardware
    • Works with gunmetal and black chrome baths
    • 3-phase input for continuous rack production
    • Moreover, gun black finishes often need a clear top coat. Gaohui recommends compatible sealing lines. Consequently, the finish resists tarnish for years.
    • We support custom voltage ranges. In addition, our engineers help with line layout planning.
    • Moreover, gun black finishes often need a clear top coat. The rectifier works with any post-plating sealing line.
    • We support custom voltage ranges. In addition, engineers help with line layout planning.
    • We support custom voltage ranges for special lines.

    Related Models:
    Barrel parts? View Barrel Gold Rectifier 300A.
    Chrome line? Check Chrome Plating Rectifier 4000A.

    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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