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.
