Electroless Nickel Plating Line
JUNDA Electroless Nickel Plating Line is a fully automatic chemical nickel plating system designed for uniform Ni-P alloy deposition on complex parts, blind holes, and internal surfaces. Featuring PLC control, automatic chemical dosing, temperature regulation, and high corrosion-resistant coating performance, it is widely used in PCB, aerospace, oil & gas, automotive, medical, and precision manufacturing industries.
Our Electroless Nickel Plating Line uses an autocatalytic chemical reaction to deposit nickel-phosphorus alloy without external power supply. This ensures 100% uniform coating thickness, even on complex shapes, blind holes, and internal surfaces where electrolytic plating cannot reach.
The equipment features automatic chemical dosing, bath temperature control, and PLC-controlled hoist operation. It is widely used in PCB manufacturing, oil & gas valves, aerospace components, and precision machinery.
Key Specifications
|
Parameter |
Specification |
|
Plating Type |
Electroless Nickel (Ni-P alloy) |
|
Phosphorus Content |
Low (3-5%) / Mid (6-9%) / High (10-13%) |
|
Coating Hardness |
As-plated: 500-600 HV / Heat-treated: 900-1000 HV |
|
Uniformity |
±10% thickness variation |
|
Plating Speed |
10-20 μm per hour |
|
Equipment Type |
Gantry Rack Plating Line |
|
Certification |
CE |
Performance Highlights
Coating Uniformity: ±10%
Hardness After Heat Treatment: Up to 1000 HV
Operating Temperature: 85–92°C
Production Automation: PLC Controlled
Plating Rate: Up to 20 μm/hour
Suitable for Blind Holes and Internal Surfaces
Key Advantages
✅ 100% Uniform Coating – No electrical field means same thickness on edges, corners, and recesses
✅ Covers Blind Holes – Plates internal surfaces and blind holes that electrolytic plating cannot reach
✅ Excellent Corrosion Resistance – Outperforms electrolytic nickel in most environments
✅ High Hardness – Heat treatment achieves hardness up to 1000 HV
✅ Low Porosity – Dense coating provides better barrier protection
✅ Plates Non-Conductive Materials – Can deposit nickel on plastics and ceramics with proper activation
Electroless Nickel vs. Electrolytic Nickel
|
Comparison Factor |
Electroless Nickel (Our Line) |
Electrolytic Nickel |
|
Coating Uniformity |
±10% — same thickness on edges, corners & blind holes |
20-50% variation — thicker on edges, thinner in recesses |
|
Blind Hole / Internal Surface |
Fully plated (autocatalytic) |
Poor or no coverage (current cannot reach) |
|
Non-Conductive Materials |
Yes (plastics, ceramics with activation) |
No (requires conductive surface) |
|
As-Plated Hardness |
500-600 HV (up to 1000 HV after heat treatment) |
150-400 HV |
|
Corrosion Resistance |
Superior (low porosity, amorphous structure) |
Moderate (columnar structure, higher porosity) |
|
Typical Applications |
PCB, oil & gas valves, aerospace, medical |
Decorative chrome base, wear-resistant |
Applications
PCB gold plating (ENIG – Electroless Nickel Immersion Gold)
Oil & gas valves and fittings
Aerospace components
Medical devices
Automotive fuel system parts
Textile machinery
Molds and dies
Precision mechanical components
Technical Parameters
|
Parameter |
Value |
|
Bath Temperature |
85-92℃ |
|
pH Range |
4.5-5.2 |
|
Plating Speed |
10-20 μm/hour |
|
Bath Life |
6-10 turnovers |
|
Heating Method |
Quartz/Titanium heater |
Phosphorus Content Selection
|
Phosphorus |
Characteristics |
Applications |
|
Low (3-5%) |
Highest hardness, slightly lower corrosion |
Wear-resistant applications |
|
Mid (6-9%) |
Balanced hardness and corrosion |
General purpose |
|
High (10-13%) |
Highest corrosion resistance, ductile |
Chemical/oil & gas industries |
About JUNDA
Taizhou Junda Intelligent Equipment Co., Ltd. specializes in automated electroplating lines, anodizing systems, coating equipment, and environmental treatment solutions. With production facilities and engineering teams in Zhejiang, Chongqing, and Jiangsu, JUNDA provides turnkey surface finishing projects for automotive, PCB, fastener, aerospace, and industrial manufacturing customers.
The company offers complete services including process design, equipment manufacturing, installation, commissioning, and technical support.
Frequently Asked Questions
What is electroless nickel plating?
Electroless nickel plating is a chemical deposition process that deposits a nickel-phosphorus alloy coating without using electrical current.
What are the advantages of electroless nickel plating over electrolytic nickel plating?
Electroless nickel plating provides better thickness uniformity, improved corrosion resistance, and excellent coverage of blind holes and internal surfaces.
What industries use electroless nickel plating?
Industries include aerospace, automotive, oil & gas, PCB manufacturing, medical devices, molds, and precision engineering.
Can electroless nickel plating be applied to plastic parts?
Yes. After proper surface activation, electroless nickel can be deposited on plastics and certain ceramic materials.
What phosphorus content should I choose?
Low phosphorus coatings offer higher hardness, while high phosphorus coatings provide superior corrosion resistance.
Successful Project References
Jinmaoyuan Surface Finishing Industrial Park
Supply:
● Automatic Zinc Barrel Plating Line
● Automatic Zinc Rack Plating Line
● Vertical Nickel Chrome Plating Line
Zhejiang Zhien Environmental Industrial Park
Supply:
● Barrel Nickel Plating Line
● Copper Nickel Chrome Plating Line
Zhenye Electroplating Co., Ltd.
Supply:
● Hard Chrome Gantry Plating Equipment
Hot Tags: Electroless Nickel Plating Line, Automatic Electroless Nickel Plating Machine, Electroless Nickel Plating Equipment
Send Inquiry
Contact Info
-
Address
Room 203, 2nd Floor, Building 5, No. 24 Chuangye Road, Haihong Subdistrict, Taizhou Bay New Area, Taizhou City, Zhejiang Province
-
Tel
-
E-mail
