Copper Granulator vs. Wire Stripper: Which One Suits You Better?

In the scrap cable recycling industry, many newcomers encounter a common dilemma: should they choose a copper granulator or a wire stripping machine?

What Is a Wire Stripper?

A wire stripping machine—as the name suggests—works by “stripping away” the outer insulation of a wire, thereby exposing the inner copper strands.

Its operating principle is relatively simple:

• The wire is fed into the machine.
• Blades cut through the outer insulation.
• The plastic casing is separated from the copper, either manually or mechanically.

The end result is a complete, bare copper wire.

What Is a Copper Granulator?

A copper wire granulator operates as follows:

• First, the cables are shredded;
• Next, the copper and plastic components are ground into granules;
• Finally, the materials are separated using methods such as airflow, vibration, and electrostatic separation.

The end products obtained are:

• Copper granules
• Plastic granules

Because the finished copper product resembles individual grains of “rice,” the machine is commonly referred to as a “copper rice machine.”

What Is the Biggest Difference Between the Two Machines?

• Wire stripping machines are suitable for “thick, clean, and single-strand” wires.
• Copper granulators are suitable for “mixed, fine, and complex” wires.

Different Applicable Materials

1️⃣Wire stripping machines are particularly well-suited for:

• Thick cables
• Single-core wires
• Copper wires with a large cross-sectional area
• Cables with sheathing that is easy to cut

For example:

• Engineering cables
• Power lines
• Thick industrial copper wires

These wires feature a high copper content and are easy to strip.

2️⃣A copper wire granulator is ideally suited for processing:

• Mixed wires
• Fine-gauge wires
• Automotive wire harnesses
• Communication cables
• Network cables
• Multi-strand fine copper wires

In reality, many types of scrap cables simply cannot be stripped manually.

This is particularly true when:

• The wires are too fine
• The copper strands are too dense
• The outer insulation is too thin
• The cable structure is too complex

A Big Gap in Processing Efficiency

1️⃣Wire Stripping Machine

✅Advantages:

• Efficient at processing thick wires
• Simple structure
• Low power consumption

❌️Disadvantages:

• Inefficient at processing mixed wires
• Virtually incapable of handling thin wires
• Struggles to keep up during high-volume operations

2️⃣Copper Granulator

✅Advantages:

• Capable of continuous operation
• Higher processing capacity
• Better suited for large-scale production

This is particularly relevant today, as many large-scale recycling facilities process several—or even dozens—of tons of scrap wire per day.

Differences in Copper Recovery Purity

1️⃣Wire Stripping Machine

Because the output consists of intact copper wires:

• The copper purity is typically very high;
• There is virtually no plastic contamination.

This constitutes one of its greatest advantages.

2️⃣Copper Granulator

Modern copper granulators—utilizing techniques such as:

• Air separation;
• Gravity separation;
• Electrostatic separation.

are also capable of producing high-purity copper granules.

With certain high-specification equipment configurations, the copper purity can even exceed 99%.

In short, before selecting equipment, the most critical question is: “Which process is truly best suited for your specific raw materials?”

Only when the equipment and raw materials are properly matched can you truly maximize recovery efficiency and profitability.