Zinc Plating Equipment & Production Lines
Complete zinc electroplating solutions from a single source — alkaline zinc, acid zinc, and zinc-nickel alloy plating systems. Automatic barrel and rack lines for fasteners, automotive components and general hardware.
Complete Zinc Plating Solutions
Zinc plating is one of the most cost-effective corrosion protection methods for ferrous metals. We provide turnkey zinc plating lines covering alkaline non-cyanide, acid chloride, and zinc-nickel alloy processes.
Zinc Plating Processes We Offer
Different applications require different zinc plating processes. We design lines for all major zinc plating types.
Alkaline Non-Cyanide Zinc Plating
Environmentally friendly process with excellent throwing power. Produces bright, ductile deposits. Widely used for automotive fasteners and hardware where superior corrosion resistance is required.
Best for: automotive, fasteners, general hardware
Acid Chloride Zinc Plating
High-efficiency process with fast deposition rates and superior brightness. Excellent for complex-shaped parts. Produces a mirror-bright finish ideal for decorative applications.
Best for: decorative hardware, complex shapes
Zinc-Nickel Alloy Plating
Advanced alloy plating with 10-15% nickel content. Offers 5-10x better corrosion resistance than conventional zinc. Growing rapidly in EV and automotive brake applications.
Best for: EV components, brake parts, high-corrosion environments
Passivation & Sealing
Complete range of post-treatments: blue/white/color/black passivation, trivalent chrome passivation, and organic/inorganic sealers. Meets automotive OEM specifications.
Available: trivalent Cr, Cr(VI)-free, automotive specs
Alkaline vs Acid Zinc Plating
Key technical differences to help you choose the right zinc process
| Parameter | Alkaline Non-Cyanide | Acid Chloride |
|---|---|---|
| pH Range | 12 - 14 (highly alkaline) | 4.0 - 6.0 |
| Bath Temperature | 10 - 50°C | 30 - 40°C |
| Current Density (rack) | 1 - 4 A/dm² | 1 - 15 A/dm² |
| Current Density (barrel) | 0.5 - 2 A/dm² | 3 - 5 A/dm² |
| Throwing Power | Excellent - deep holes, threads | Poor, but good covering power |
| Brightness | Semi-bright (40-80%) | Mirror-like (80-90%) |
| Deposition Speed | Slower | Fast |
| Corrosion Resistance | Good, uniform thickness | Good on simple parts |
| Environment | RoHS compliant, cyanide-free | Requires continuous filtration |
| Best For | Complex parts, threads, automotive | High-volume fasteners, decorative |
Zinc Plating Equipment Essentials
Key equipment components for a reliable zinc plating line
Zinc Anodes
High-purity zinc anodes (or titanium baskets with zinc balls) replenish zinc ions. Anode-to-cathode ratio 1:1 to 2:1. For acid chloride baths, control anode current density below 25 A/ft² to avoid excessive dissolution.
Rectifier
DC rectifier, typically 12V, 500-5000A depending on load. High-frequency switching rectifier with low ripple for consistent deposit. Voltage requirements: rack 1-8V, barrel 6-18V.
Continuous Filtration
Continuous filtration is MANDATORY for acid chloride zinc baths to prevent roughness and pitting. Alkaline baths also benefit from periodic filtration. Use corrosion-resistant pumps and 5-20 μm cartridges.
Passivation & Drying
In-line passivation tanks (blue/white/color/black) and sealing tanks for corrosion protection. Centrifugal dryers or hot-air ovens complete the process. Trivalent passivation recommended for RoHS/ELV compliance.
Recommended Equipment for Zinc Plating
Choose the right plating line based on your parts, volume and process requirements.
Automatic Gantry Plating Line
PLC-controlled rack line for zinc plating of larger parts. Capacity 50-500m²/day. Suitable for automotive components.
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Rotary Barrel Plating Line
Ideal for bulk zinc plating of small parts like fasteners, nuts, bolts and washers. 40% higher efficiency than rack lines.
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Manual & Semi-Automatic Plating Line
Flexible, low-cost solution for small-batch zinc plating. Ideal for multi-variety production, precious metals and complex parts.
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Miniature & Portable Barrel Plating
Compact benchtop systems for small batch zinc plating. Perfect for labs, R&D and small-scale production.
Learn More →Zinc Plating Applications
Zinc plating provides essential corrosion protection across many industries
Automotive
Fasteners, brake components, chassis parts, fuel system components, EV battery trays
Fasteners & Hardware
Screws, nuts, bolts, washers, rivets, springs, clips and stamped parts
Construction
Structural hardware, brackets, pipe fittings, fencing components, handrails
Electrical & Electronics
Conduit fittings, cable trays, switchgear components, enclosures
Zinc Plating Project Images
Photos of our zinc plating lines and finished parts
Zinc Plating Line
Automatic zinc plating production line for corrosion protection.
Zinc Plated Fasteners
Fasteners with bright zinc coating for corrosion protection.
Zinc Plated Screws
Zinc-plated screws with uniform, durable finish.
Zinc Plated Nuts
Bulk zinc-plated nuts with consistent coating quality.
Automotive Zinc Parts
Zinc-plated automotive components for durability.
Rack (Hanging) Zinc Plating Line
Rack zinc plating line for larger parts and precision components
Rack Zinc Plating Line
Hanging rack zinc plating line for larger workpieces.
Zinc Plated Hardware
Hardware parts with rack zinc plating finish.
Rack Zinc Plated Parts
Precision parts plated on rack zinc line.
Color Zinc Plated Screws
Long screws with colored zinc passivation.
Color Zinc Plated Parts
Parts with iridescent color zinc coating.
Need a Zinc Plating Line?
Tell us your requirements — parts type, production volume and process preference. We'll design the right zinc plating solution within 24 hours.