Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd. is one of the leading manufacturers and suppliers of 316l cathode plate for copper recovery in China. If you're going to buy customized 316l cathode plate for copper recovery made in China, welcome to get more information from our factory. For price consultation, contact us.
Product Introduction
Our 316L Cathode Plate for Copper Recovery is a recyclable permanent electrolytic substrate suitable for recovering copper from PCB acid and alkali waste liquids, low chloride ion wet leaching solutions, and copper-containing waste electrolytes. Made of UNS S31603 molybdenum-based austenitic stainless steel, it exhibits stable pitting corrosion resistance in low-to-medium chloride ion copper recycling electrolytes. The plate surface undergoes multiple cold-rolled mirror polishing processes, generating a uniform and stable passivation film during electrolysis. Copper ions are deposited evenly, resulting in a dense and smooth copper layer that can be automatically and completely peeled off without any adhesion or residue. It is paired with ISA hollow copper-clad lifting beams or KIDD fully enclosed sealed solid copper core lifting beams, seamlessly laser-welded by robots. This results in low voltage drop in the electrode tank, stable conductivity, and a current efficiency of 92%–95%. It can replace disposable starting plates, significantly saving labor and auxiliary material costs. Its service life under copper recycling conditions can reach 10–13 years. Compatible with all fully automatic stripping equipment on the market, it is a high-performance, cost-effective standard cathode for long-term copper recycling production lines.
Product Parameters
|
Parameter Item |
Detailed Specification |
| Raw Material |
ASTM 316L Stainless Steel, UNS S31603 |
| Main Uses |
PCB Waste Copper Recycling, Low Chloride Ion Hydrometallurgical Copper Electrowinning |
| Optional Plate Thickness | 2.0mm / 2.5mm / 3.0mm / 3.25mm, Customization Supported |
| Dimensional Tolerance |
Length and Width Error ≤ ±1mm, Flatness ≤ 0.4mm/meter |
| Conductive Lifting Beam Structure |
ISA Hollow Copper-clad Beam / KIDD Fully Enclosed Sealed Solid Copper Core Beam |
| Surface Treatment |
Cold-rolled mirror polishing and passivation, smooth surface for easy and complete copper peeling |
| Suitable Electrolyte |
Medium to low chloride ion sulfuric acid system for copper recycling waste liquid |
| Current Efficiency |
92%–95%, low tank voltage, saving electrolysis power consumption |
| Service Life |
Copper recycling production conditions | 10–13 years |
| Peeling Performance |
Complete removal of the entire copper sheet, no residue adhering to the board surface |
| Recycled Copper Purity |
≥99.97% High-purity electrolytic copper |
Core Product Advantages
316L material suitable for low-to-medium chloride copper recycling conditions, offering outstanding overall cost-effectiveness. The molybdenum-containing 316L stainless steel provides reliable resistance to dilute sulfuric acid and moderate chloride ion corrosion, perfectly suited for conventional PCB copper extraction waste liquid and low-chloride ore leaching solutions; balancing raw material cost and corrosion resistance, it provides recycling plants with stable, long-cycle operating plates.
01
Mirror-finish ultra-flat surface, uniform copper deposition, fully automated peeling without board sticking. Multiple precision mirror-finish cold rolling processes eliminate surface irregularities, scratches, and burrs. A natural passivation film prevents copper crystals from tightly adhering, resulting in a uniform and dense copper layer. No manual peeling is required, improving overall copper recycling production efficiency.
02
Dual-conductive suspension beam structure, adaptable to copper recycling lines of different sizes. The ISA hollow copper beam has a wax-coated bottom for separation, producing two independent copper sheets from a single cathode, suitable for small to medium-sized intermittent copper recycling production lines; the KIDD fully enclosed solid copper core beam offers stronger resistance to acid mist corrosion, suitable for high-flow continuous copper recycling electrolysis workshops. The two structures are directly interchangeable without equipment modification.
03
Permanently recyclable, reducing overall operating costs of copper recycling. This 316L cathode can be recycled for over ten years, replacing disposable starting plates and saving on frequent labor, raw material, and maintenance expenses; the overall resistance of the electrode plate is low, resulting in less electricity consumption per ton of recycled copper, significantly reducing the long-term operating costs of waste copper recycling projects.
04
Application Scenarios
This 316L stainless steel cathode plate is a standard permanent electrode for industrial copper recovery, widely used in hydrometallurgical processes such as copper extraction from acid and alkaline wastewater in PCB circuit boards, electrowinning of low-chlorine copper ore leaching solutions, and regeneration and recovery of copper-containing wastewater. It is compatible with large, medium, and small continuous copper recovery production lines, stably producing high-purity electrolytic copper and reducing long-term factory maintenance costs.
Product Details
01.
Original 316L stainless steel coil raw material. Utilizing Baosteel/POSCO standard UNS S31603 low-carbon molybdenum stainless steel coil, the alloy composition is stable, and corrosion resistance is uniform. After thousands of electrolytic cycles in copper recovery electrolyte, the plate surface is not prone to warping or deformation.
02.
Integrated cold rolling + robotic laser seamless welding process. The entire plate undergoes multiple acid pickling and mirror polishing processes to ensure an extremely flat copper substrate. The electrode plate and conductive beam are fully welded by a fully automated robot, preventing acid penetration and maintaining stable conductive contact over the long term.
03.
Rigorous testing throughout the entire factory process. Each finished cathode undergoes flatness testing, conductivity drop testing, dilute acid corrosion simulation testing, and copper peeling compatibility testing, fully complying with international permanent cathode standards in the copper recycling industry.
Product Qualification Certification
Our factory specializes in producing hydrometallurgical permanent cathodes, possessing complete production qualifications and equipped with CNC cutting, fully automated laser welding, polishing, and a professional performance testing laboratory. All 316L copper recycling cathodes are manufactured according to ASTM international metallurgical standards and support third-party SGS material testing. We provide complete original material certificates, welding test reports, and a full set of factory qualification documents. Our products comply with EU industrial environmental standards, ensuring reliable procurement for copper recycling plants worldwide.
Logistics and After-Sales Service
Packaging And Shipping
Reinforced solid wood anti-collision frame + double-layer moisture-proof plastic film packaging to prevent scratches, oxidation, and deformation of the board surface during transportation. Standard specifications are available for immediate shipment; customized orders with different thicknesses, dimensions, and conductive beam structures can be expedited. We offer comprehensive coverage via sea freight, air freight, and international express delivery, with stable global logistics channels.
After-Sales Guarantee Service
One-stop free pre-sales technical support: matching copper recycling electrolyte conditions, customizing cathode sizes, and guidance on automatic stripping equipment adaptation; long-term daily maintenance technical follow-up. Free replacement is supported for verified original manufacturer manufacturing quality issues; zero risk for overseas copper recycling procurement.
Frequently Asked Questions
Q1: Why choose 316L cathodes instead of duplex steel for copper recycling scenarios?
A1: 316L stainless steel has lower raw material costs and sufficient corrosion resistance in conventional low-chloride ion PCB copper recycling waste liquid, making it more cost-effective for ordinary copper recycling projects; LDX2101 duplex steel is only recommended for high-concentration etching waste liquids and chloride ion exceeding standards.
Q2: Can this cathode be used with a fully automatic stripping machine in a copper recycling production line?
A2: Yes, the mirror-smooth passivated surface will not adhere to copper crystals, allowing for complete stripping of the recycled copper sheet, perfectly matching mainstream ISA and KIDD fully automatic stripping equipment in copper recycling plants.
Q3: How to choose between ISA and KIDD beam structures for copper recycling production lines?
A3: ISA hollow copper-clad beams with a waxed bottom produce two independent copper sheets, suitable for small-batch intermittent recycling; KIDD fully enclosed solid copper core beams offer stronger acid mist resistance, suitable for large-scale continuous copper recycling electrolysis workshops.
Q4: Can the plate thickness, dimensions, and conductive beam shape be customized?
A4: Full customization is supported. Plate thickness, length and width, ISA/KIDD beam dimensions, and welding positions can all be adjusted according to the customer's electrolytic cell parameters.
Company News
Our factory has been deeply involved in the R&D and manufacturing of 316L permanent cathodes specifically for copper recycling for over ten years, continuously optimizing mirror polishing and laser welding processes to improve copper deposition uniformity and stripping effect. Our 316L copper recycling cathode products are exported in large quantities to PCB waste liquid recycling and hydrometallurgical plants in Southeast Asia, Africa, and South America, and we have established long-term and stable strategic partnerships with dozens of global copper waste recycling companies.
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