The Ins and Outs of Copper Granules | CopperMine
Copper granules, often referred to as copper chops, are one of the most valuable products that can be produced from insulated copper wire. By processing insulated wire through a copper granulation system, recyclers can separate the copper from insulation and other materials, producing a clean, concentrated copper product that can be sold to scrap yards, metal recyclers, and other downstream buyers.
For businesses processing large volumes of wire, copper granulation can offer an opportunity to increase the value of material that might otherwise be sold as insulated copper wire.
What Are Copper Granules?
Copper granules are small pieces of recovered copper produced by mechanically processing insulated copper wire. A typical granulation system uses a combination of shredding, cutting, screening, air separation, and other separation technologies to separate copper from insulation.
The finished product can vary in size and purity depending on the type of wire being processed, the equipment being used, and the processing settings.
The goal is simple: recover as much clean, sellable copper as possible while separating the insulation and other contaminants.
How Does Copper Granulation Work?
While different systems use different designs, the basic process typically follows several stages:
1. Wire Feeding
Insulated copper wire is introduced into the processing system. Depending on the system and material, the wire may be fed manually, by conveyor, or through a larger automated material-handling system.
2. Shredding or Cutting
The wire is reduced into smaller pieces. This allows the separation process to expose the copper contained inside the insulation.
3. Granulation
The material is further processed into small copper and insulation particles. The size of the finished granules depends on the machine configuration and screen size.
4. Separation
The copper and insulation are separated using differences in physical properties such as density and weight. Air separation and other technologies can be used to remove lighter insulation from heavier copper.
5. Final Copper Product
The result is a concentrated copper granule or "copper chop" product that can be collected for sale.
What Types of Wire Can Be Granulated?
Copper granulators can process many different types of insulated copper wire, although the ideal material depends on the specific machine.
Common examples include:
- THHN and THWN wire
- Romex and NM-B cable
- Automotive wiring harnesses
- Telecom and data cable
- Electrical cable
- Construction and demolition wire
- Multi-conductor copper cable
- Other insulated copper wire
Different wire types can have dramatically different copper recovery percentages. A thick copper conductor with relatively little insulation may produce a much higher copper recovery than a lightweight automotive harness containing significant insulation, connectors, and other materials.
This is why understanding your material is one of the most important parts of evaluating a granulation system.
How Much Copper Can You Recover?
Copper recovery depends heavily on the material being processed.
For example, if 1,000 pounds of insulated wire contains 60% copper by weight, the theoretical copper content is approximately:
1,000 lbs × 60% = 600 lbs of copper
Actual recovered copper will depend on the machine, material preparation, separation efficiency, and the amount of copper lost with the insulation or other outputs.
This is why a proper material test can be extremely valuable before investing in a larger processing system.
What Is Copper Chops Worth?
One of the most common questions we hear is:
"How much are copper granules worth?"
There isn't one universal answer.
The value of copper chops can depend on:
- Copper purity
- Granule size
- Buyer specifications
- Local scrap market
- Current copper prices
- Quantity being sold
- Freight and transportation costs
- Whether the buyer pays based on #1 copper, #2 copper, COMEX, or another pricing structure
Some buyers may classify a clean copper granule product differently than others. The best way to determine your actual selling price is to speak with local buyers and understand their specifications before purchasing equipment.
CopperMine also offers customers the option to send in a small wire sample for processing, allowing you to evaluate the recovered copper and share the results with potential buyers before investing in equipment. Contact us today to learn more.
Why Granulate Copper Wire Instead of Selling Insulated Wire?
The primary reason is recovery value.
Selling insulated wire means selling both the copper and insulation together. Granulation allows the processor to separate those materials and create a concentrated copper product.
For businesses that can consistently source wire at an attractive cost, this can create a significant difference in the economics of the material.
However, granulation isn't automatically the best solution for every operation.
The most important factors are:
Cost of wire + copper recovery + selling price − processing costs = potential margin
Processing volume, labor, electricity, maintenance, blade wear, freight, and material handling should all be considered when calculating the potential return. Check out our Interactive ROI calculator to calculate this.
Is Copper Granulation Right for Your Business?
A granulator can make sense for a wide range of operations, including:
- Scrap yards
- Wire recycling businesses
- Electrical contractors
- Demolition companies
- E-waste recyclers
- Automotive recyclers
- Industrial recycling operations
- Businesses purchasing insulated wire for processing
The key question isn't simply "How much can the machine process?"
It is:
"Can I consistently source enough material at the right price to keep the machine productive and profitable?"
A machine sitting idle doesn't generate revenue. For many businesses getting started with wire processing, building a reliable supply of material is just as important as selecting the right equipment.
CopperMine Copper Granulation Systems
CopperMine offers copper granulation systems designed for a wide range of processing volumes and business applications. Whether you are just getting started with wire processing or looking to build a high-volume recycling operation, we have system configurations designed to grow with your material supply.
CopperMine CT-610
The CopperMine CT-610 is a compact copper recovery granulator designed for small to mid-sized businesses and individuals looking to process insulated copper wire and recover clean copper granules.
The CT-610 is designed for applications including insulated copper wire, automotive harness wire, residential and demolition wire, household cable, and telecom/data wire.
The CT-610 can process up to 400 lbs. per hour, depending on the material and operating conditions, making it a practical option for small-to-medium-volume wire processing operations.
For businesses just entering copper granulation, the CT-610 provides an opportunity to establish a processing operation and build a consistent volume base without immediately investing in a much larger industrial system.
CT-610 Full System
For customers looking for a more complete processing solution, the CT-610 Full System adds material handling and pre-processing capabilities to create a more streamlined wire processing operation.
The Full System is designed for businesses that have a larger and more consistent supply of material and want to reduce the operator's manual material handling while improving overall workflow and production efficiency.
This configuration provides a natural step up from the standalone CT-610 while maintaining the compact footprint and production capabilities of the CT-610 platform.
CopperMine CT-630 — 1-Ton-Per-Hour Copper Recovery System
For high-volume operations, the CopperMine CT-630 is designed for significantly greater production requirements, with a target processing capacity of up to 1 ton of material per hour, depending on the material and system configuration.
The CT-630 is built for recyclers, scrap yards, and commercial operations that have the material volume to support a larger production system. With greater processing capacity and a more industrial configuration, it provides a solution for businesses looking to move beyond small and medium-volume wire processing.
Before You Buy a Copper Granulator
Before investing in equipment, we recommend answering a few important questions:
1. What type of wire can you source?
Knowing the wire type and approximate copper content is critical.
2. How much material can you consistently obtain?
Don't base your decision on a one-time load. Consider your sustainable weekly and monthly supply.
3. What are local buyers paying?
Talk to multiple scrap yards and copper buyers about their pricing for granulated copper.
4. What will your transportation costs be?
A great selling price can quickly become less attractive if the buyer is several states away and freight costs are high.
5. What is your expected recovery rate?
Testing representative material can give you a much better idea of the potential economics.
6. What machine capacity do you actually need?
The largest machine isn't always the best machine. The right system should match your available material supply.
Not sure which system is right for your material? Send us photos and information about your wire, including your estimated volume, and our team can help you determine which CopperMine granulation system may be the best fit.
Turning Scrap Wire Into a Higher-Value Product
Copper granulation is ultimately about creating more value from material that would otherwise be sold as insulated wire.
When you have access to affordable wire, sufficient volume, a reliable processing system, and a good outlet for the finished copper, granulation can become a powerful addition to a recycling or scrap operation.
At CopperMine, we work with customers across a wide range of applications and can help evaluate whether copper granulation makes sense based on your material and expected volume.
Have wire you are considering processing? Send us information about the material you have, including photos, approximate volume, and the price you are paying. We can help you determine whether a copper granulator is the right fit for your operation.
Better Tools, Better Results.