Nickel-Nickel-Chrome Rack Plating Line

The Nickel-Nickel-Chrome Rack Plating Line is an automated electroplating system that deposits three functional layers onto metal parts: semi-bright nickel , bright nickel, and decorative chrome. This double-nickel structure achieves 48–120 hours of neutral salt spray test (NSS) resistance - 2x longer than traditional copper-nickel-chrome processes.

Our gantry-type rack plating equipment is widely used for automotive exterior parts, bathroom faucets, door handles, and kitchen hardware that require both high corrosion resistance and premium aesthetic appearance. Available in fully automatic or semi-automatic configurations.

Key Specifications

Technical Process

1. Ultrasonic Degreasing – Remove oil and grease from part surfaces

2. Electrolytic Degreasing – Deep cleaning via electrochemical reaction

3. Acid Activation – Remove oxidation film, activate metal surface

4. Semi-Bright Nickel Plating – First nickel layer, leveling and corrosion resistance

5. Bright Nickel Plating – Second nickel layer, brilliant appearance and further protection

6. Decorative Chrome Plating – Top chrome layer for high brightness and wear resistance

7. Rinsing & Drying – Multi-stage rinsing followed by hot air drying

Key Advantages

✅ Double Nickel Protection – Semi-bright + bright nickel layers provide superior corrosion resistance, passing 48-120 hours salt spray test

✅ High Brightness Finish – Decorative chrome layer delivers mirror-like finish for premium appearance

✅ Automated Operation – PLC-controlled gantry hoist with HMI touch screen for easy operation and parameter adjustment

✅ Energy Efficient – Optimized heating system and rectifier reduce energy consumption by 15-20%

✅ Customizable Layout – Tank arrangement and line length customized to your available floor space

✅ 12 Months Warranty – Full warranty coverage with lifetime technical support

Nickel-Nickel-Chrome vs. Traditional Copper-Nickel-Chrome: Which is Better for Your Parts?

Applications

Automotive parts (wheels, grilles, trim pieces)

Sanitary ware (faucets, shower heads, bathroom accessories)

Household hardware (door handles, hinges, locks)

Furniture hardware

Lighting fixtures

Kitchenware and appliances

How to Select the Right Nickel-Nickel-Chrome Rack Plating Line

Selecting the right plating line depends on your product size, production capacity, coating requirements, and factory layout rather than simply choosing the largest equipment.

For automotive decorative parts requiring over 96 hours of neutral salt spray resistance, a fully automatic gantry rack plating line with programmable PLC control is recommended to ensure consistent coating thickness throughout long production runs.

For bathroom faucets, sanitary fittings, and decorative hardware with multiple product models, a modular rack plating line offers greater flexibility by allowing quick rack replacement and production changeovers.

If the products have deep recesses or complex geometries, the plating process should incorporate optimized anode distribution, solution circulation, and continuous filtration to improve throwing power and coating uniformity.

When planning a new production line, the following information should be confirmed before equipment design:

Providing these parameters allows engineers to determine tank quantity, rectifier capacity, hoist configuration, filtration system, and overall production line layout.

Real Production References

Case 1: Jinmaoyuan (East China) Surface Treatment Eco-Industrial Park

Jinmaoyuan is a leading surface treatment industrial park operator in China. JUNDA supplied a nickel-chrome rack plating line (gantry type) for automotive parts and hardware components. This line has been running 3-shift production since 2022 and remains in stable operation.

Case 2: Zhejiang Zhien Environmental Industrial Park

Zhien Environmental Park is a key surface treatment centralized control zone in Zhejiang Province. JUNDA supplied a vertical copper-nickel-chrome plating line for sanitary ware and decorative hardware. The line is fully integrated with a wastewater treatment system, meeting local environmental discharge standards.

Technical Parameters

Engineering Design Considerations

Every nickel-nickel-chrome plating line is engineered according to the customer's production process rather than adopting a fixed configuration.

Typical engineering considerations include:

• Tank dimensions based on maximum workpiece size
• Hoist traveling distance and lifting stroke
• Required production takt time
• Rectifier current density calculation
• Ventilation and exhaust system design
• Wastewater collection and recycling
• Chemical dosing system
• Heating method according to local energy source
• Spare rack quantity for continuous production

Proper engineering design minimizes future modifications while improving production efficiency and operating stability.

Why Choose JUNDA

As a direct manufacturer with over 10 years of experience, we design and build each Nickel-Nickel-Chrome Rack Plating Line to your exact specifications. Our factory spans 67,000㎡ and produces over 200 motor models. We offer factory-direct pricing, short lead times (30-45 days), and 12 months warranty.

Contact us today for a customized quotation！

Frequently Asked Engineering Questions

What is the recommended nickel thickness for outdoor decorative parts?

For automotive and sanitary applications, the total nickel thickness is typically controlled between 20–30 μm, depending on corrosion resistance requirements and applicable standards.

How many plating tanks are normally required?

The total number depends on process sequence, rinsing stages, production capacity, and required automation level. Most automatic decorative nickel-chrome lines include pretreatment, activation, double nickel plating, chrome plating, rinsing, drying, and unloading stations.

Can existing plating workshops be upgraded instead of building a new line?

Yes. Existing manual plating workshops can often be upgraded into semi-automatic or fully automatic production lines while retaining selected tanks and utilities, reducing overall investment.

Which industries normally use nickel-nickel-chrome plating?

Typical industries include automotive exterior trim, bathroom hardware, kitchen fittings, furniture hardware, lighting accessories, and premium decorative metal products.