Short answer: yes. Insulated copper wire is worth money even if you never strip a single foot of it. Every scrap yard buys insulated copper wire — they just pay less for it than for clean, stripped copper. The real question isn’t whether it has value, but how much value you leave on the table by selling it as-is, and whether the effort of stripping is worth your time.
Copper is one of the most valuable and widely recycled non-ferrous metals in the world. It goes into power cables, building wiring, motors, transformers and electronics, and it can be recycled again and again without losing its conductive properties. That is why scrap dealers, electrical contractors and demolition crews treat copper wire as a commodity rather than waste.
When a cable still has its plastic, rubber or PVC insulation on, the copper inside is still perfectly good. Scrap yards buy it at a lower rate per kilogram because they have to factor in the weight of the insulation — which has no metal value — and the cost of processing the wire to get the metal out. But the copper content is real, and it is recoverable.
How scrap yards grade copper wire
Scrap yards don’t pay a flat rate for copper. They grade it, and each grade carries a different price:
- Bare bright copper — clean, stripped, shiny wire with no coating, solder or heavy oxidation. This is the premium grade and commands the highest price.
- #1 copper — clean pipe or heavy wire with minimal oxidation.
- #2 copper — oxidised, painted or lightly contaminated copper.
- Insulated copper wire — wire still wrapped in plastic, rubber or PVC. Priced lower because of the waste insulation weight and the processing cost.
- Light-gauge insulated wire — thin wire with a low copper-to-insulation ratio. The lowest value category.
The gap between insulated wire and bare bright copper is significant. Depending on the market, stripping can lift the value of a batch of thick cable by a large margin — which is exactly why so many recyclers invest in cable recycling equipment in the first place.
When is stripping actually worth it?
Whether stripping pays off comes down to three things: the thickness of the wire, the volume you have, and the method you use.
- Thick wire is almost always worth stripping. Heavy cable — service entrance wire, battery cable, large THHN — has a high copper content and strips quickly. The copper-to-insulation ratio is favourable, so the effort pays for itself.
- Thin wire often isn’t worth hand-stripping. Fine wire such as lamp cord, speaker wire or Cat5 has so little copper relative to insulation that hand-stripping can take longer than the value it adds. For this kind of wire, selling it as insulated scrap — or running it through a granulator — is usually the smarter move.
- Volume changes the math. A handful of wire isn’t worth setting up for. But when you have hundreds of kilograms — from a demolition job, an electrical upgrade, or a collection business — the difference between selling insulated and selling clean copper becomes substantial.
A quick rule of thumb used by many scrappers: if you can’t fit the wire into the eraser end of a pencil, it’s probably worth stripping. Thinner wire is better sold as-is or processed mechanically.
The right way to process copper wire at scale
Hand-stripping with a knife or pliers works for small batches, but it is slow, tiring and risky — a slip can nick the copper and downgrade its grade, and a dull blade can cause injury. For anyone processing wire on a regular basis, mechanical processing is the answer.
A complete cable recycling line typically combines two stages. First, a scrap cable stripper peels the insulation off large-diameter cable — typically from about 1.5mm up to 150mm — before it goes into the granulator. This step matters because thick cable is hard for a granulator to handle efficiently on its own. Second, a cable granulator shreds the wire into small particles and separates the copper from the plastic using air or water separation. The result is clean copper granules on one side and plastic insulation on the other, both ready to sell.
San Lan Technologies Co., Ltd is a professional manufacturer of cable recycling plants, with a full range of machines from compact granulators such as the WCD-100C and WCD-200C up to high-capacity plants like the WCD-600S and WCD-1200S. Their scrap cable strippers handle diameters from 1.5mm to 150mm, and their complete cable recycling plants process everything from household wire to industrial cable. With a granulator, even thin-gauge wire that isn’t worth hand-stripping becomes profitable, because the machine does in seconds what would take hours by hand.
Never burn insulation off wire
One thing every recycler should know: never burn insulation off copper wire. It is illegal in most jurisdictions, it releases toxic fumes — PVC insulation produces hydrogen chloride, dioxins and furans when burned — and it leaves a dark, oxidised residue that downgrades the copper. Most reputable yards will reject burnt wire outright or pay only the lowest grade for it. Burning doesn’t just risk your health and your wallet; it destroys the value of the very material you’re trying to profit from. Mechanical stripping and granulation are safer, faster and produce a cleaner product that commands a better price.
The bottom line
Yes, copper wire is worth money without the insulation removed — every scrap yard will buy it. But the value you realise depends on how you sell it. Selling insulated wire as-is is convenient, but you’re accepting a lower-grade price for copper content you’ve already paid to collect. For thick wire and large volumes, stripping or granulating before you sell can make a meaningful difference to your bottom line.
If you process copper wire regularly — whether you’re a scrap dealer, a recycling business or an e-waste processor — investing in the right cable recycling equipment turns a low-grade scrap stream into two clean, saleable products: copper granules and plastic. And that is where the real money is.
