In today’s booming precious metal recovery industry, gold stripping machines are becoming essential tools for recyclers, refiners, and electronics waste processors. Whether you work with old circuit boards, gold-plated connectors, or scrap jewelry, understanding how a gold stripping machine works can help you improve recovery efficiency, increase purity, and boost profit margins.

Yet many people still wonder: What exactly happens inside the machine? How does gold actually “strip” off the material? Is it safe? And how can you choose the right machine?

How Does a Gold Stripping Machine Work?

1. Material Preparation

• Before gold stripping begins, operators must:
• Sort gold-plated scrap
• Remove large plastic or non-metal attachments
• Ensure components are dry and oil-free
• Crush or cut pieces if needed

Why it matters: Clean, uniform material increases stripping speed by up to 40%, according to internal industry data.

2. Loading the Reactor Tank

Materials are placed into a corrosion-resistant reactor tank, typically made of:

• PP (polypropylene)
• Stainless steel 316L
• Industrial-grade composites
• Inside, agitators or circulation pumps ensure even chemical flow, preventing dead zones where gold may strip slower.

3. Chemical Stripping Reaction

This is the heart of the process.

Gold stripping machines use formulated stripping solutions—depending on the design, these may be:

• Acidic solutions
• Mild electrolytes
• Eco-friendly non-cyanide formulas
• Oxidizing chemical blends

When the machine starts, the stripping solution dissolves or separates the gold layer from the base material.

The science behind it:

• Gold dissolves into the solution as ions.
• Base metal remains intact or slightly etched.
• Temperature, flow rate, and chemical concentration are controlled automatically.
• Modern systems use intelligent PLC-based monitoring, reducing chemical waste by 30–50% and keeping safety at high standards.

4. Gold Collection and Precipitation

After the reaction, gold exists in liquid form within the stripping solution. The machine then directs this liquid to a precipitation tank, where gold is recovered using:

• Reducing agents
• Filtering methods
• Settling & separation systems

The result: high-purity gold powder, usually above 99.5% before final refining.

5. Rinsing, Neutralization & Waste Treatment

Proper systems include:

• Rinsing modules
• Gas scrubbing towers
• Neutralization tanks
• Filter presses

This ensures compliance with environmental standards and reduces harmful emissions.

6. Drying & Final Output

• The recovered gold powder is dried, weighed, and sent to a refinery for smelting or further purification.
• Typical final purity after refining: 99.99% gold.

Gold stripping machines are transforming the precious metal recycling industry. By combining smart automation, advanced chemical processes, and eco-friendly engineering, they make gold recovery faster, safer, and far more profitable.

Understanding how a gold stripping machine works helps you choose the right model, optimize your operation, and unlock the real value hidden in electronic waste. Whether you’re a small recycler or a large-scale refining plant, this technology offers a powerful, future-ready solution.