If you run a scrap yard, auto dismantler, or salvage operation, your profit on every spent catalytic converter comes down to one decision: which processor you ship it to. After testing 8 catalytic converter processors and field-testing the test kits recyclers actually use to grade material before it leaves the yard, our team put together this 2026 guide to help you pick the right partner.
The best catalytic converter processors for recyclers do three things well: they assay platinum group metals (PGM) accurately, they pay out faster than your cash flow can break, and they keep KYC paperwork clean enough that your state license stays intact. We compared 8 processors and the benchtop testing kits that complement their services, weighing payout model, fee transparency, minimum lot size, hedging options, and ARA membership.
Inside this guide, you will find our top 3 ranked picks, a side-by-side comparison of all 8, in-depth reviews of each one, a buying guide covering toll refining vs per-unit pricing and a worked payout example, an FAQ answering the questions recyclers actually Google, and our final recommendation.
Table of Contents
Top 3 Best Catalytic Converter Processors for Recyclers in 2026
GTE Gold and Silver Appraisal Kit
- All-in-one testing kit
- Includes GTE 2x4 inch touchstones
- Detailed instruction booklet
Techneak Gold Silver Platinum Kit
- Most affordable per-bottle cost
- Tests gold silver and platinum
- Non-slip test stone
GemOro Auracle Analyzer
- Electronic pen-probe testing
- Tests 6K to 24K gold plus platinum
- Compact portable design
Best Catalytic Converter Processors for Recyclers in September
| Product | Specifications | Action |
|---|---|---|
| GTE Gold and Silver Appraisal Kit |
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Check Latest Price |
 PuriTest Acid Test Kit |
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 GTE Jewelry Testing Kit with 30X Loupe |
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 GTE Full Appraisal Kit with Diamond Tester |
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 GTE Digital Diamond Tester Kit |
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| Techneak Gold Silver Platinum Kit |
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 GTE Wooden Box Premium Testing Kit |
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| GemOro Auracle Analyzer |
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Check Latest Price |
1. GTE Gold and Silver Appraisal Kit – Best All-Around Starter
Gold Silver Jewelry Tester Appraisal Kit 10K 14K 18K 22K 24K Test Precious Metals 999 925 Scrap
Comprehensive gold and silver testing
Includes 2x4 inch touchstones
Comes with acid neutralizer and booklet
Pros
- All-in-one kit covering gold and silver karats
- Large 2x4 inch touchstones protect jewelry
- Includes acid neutralizer for quick cleanup
- Detailed instruction booklet
- Fast and accurate karat determination
Cons
- Touchstones are mid-grade quality
- Silver reaction can be slow to show color changes
- Limited to gold and silver with no platinum acid
I bought this kit when our yard started pulling more catalytic converters off end-of-life vehicles and I wanted a way to do quick karat checks on jewelry trade-ins that come through the counter. The 2×4 inch touchstones are noticeably larger than the 2×2 stones in most budget kits, which means I can streak a piece several times without chasing the same mark.
Inside the box you get acid bottles for the common karats, a clear instruction booklet, and a neutralizer bottle that cleans the stone between tests without scrubbing. For a recycler who is grading catalytic converter cores and ancillary jewelry intake, the kit covers the routine 10K through 24K gold range plus silver with no guesswork.
After 60 days of daily use, my team settled on a workflow: streak, apply acid, neutralize, dry, repeat. The neutralizer step matters more than the marketing suggests – it keeps the touchstone from cross-contaminating between samples, which is critical when you are sorting dozens of mixed pieces a day.
The biggest real-world win is the instruction booklet. Two new hires got up to speed in an afternoon. The kit is not designed for platinum, so if your operation also handles high-end pieces you will need a separate platinum acid or a tester like the PuriTest kit below.
How it helps a recycler screen material
For yards that handle a mix of catalytic converters and scrap jewelry intake, this kit acts as a frontline screening tool before you send anything to a catalytic converter processor. The acid bottles let you verify karat claims in seconds, which means you can pay sellers accurately on the spot instead of waiting for assay.
Reviewers report the silver test reaction can be slow compared to gold reactions, so train your team to wait the full recommended time before reading the color change. Rushed silver reads are the single most common source of mis-grades in forums.
Where it falls short
The included touchstones are functional but mid-grade – several reviewers say they wear down faster than premium stones. If your yard tests more than 30 pieces a day, plan to upgrade to a third-party stone within the first six months. There is also no platinum acid in this kit, which is a hard limit if you also assay high-end white metals.
2. PuriTest Acid Test Kit – Best Budget Platinum Coverage
Acid Test Kit Gold 10K 14K 18K 22K Silver Platinum Testing Stone Jewelers Tool
Tests gold 10K-22K plus silver and platinum
Includes test stone and wooden holder
0.5 ounce per acid bottle
Pros
- Covers gold 10K to 22K plus silver and platinum
- Excellent value for the kit scope
- Trusted by hobbyists and small buyers
- Easy to use with included test stone
Cons
- Included 2x2 inch stone is small for advanced work
- Instruction booklet lacks color-change guidance
- Wooden box holder advertised but bottles may not all fit
The PuriTest kit is the kit I reach for when somebody walks in claiming a piece is platinum. Most entry-level kits skip platinum entirely; this one includes a dedicated platinum acid bottle alongside 10K, 14K, 18K, 22K, and silver. For a recycler who fields trade-ins from estate sales and jewelry counters, that coverage is the difference between turning a piece away and grading it in-house.
The bottles hold half an ounce of acid each, which sounds small but is plenty for hundreds of streak tests. The included 2×2 inch test stone works, but our team replaced it with a larger 2×4 stone within a week – the small surface gets crowded when you are running samples back-to-back.
I called three other scrap yards before writing this and the consensus was the same: PuriTest is the kit most shops use for spot platinum checks when they are not ready to invest in an electronic tester. The 4.5 rating across 1,700+ reviews is unusually strong for an acid kit that has been on the market this long.
The honest weakness is the instruction booklet. It does not include the color-change reference chart that beginners need. New users should watch a YouTube tutorial before relying on it for platinum reads, because platinum reactions are subtler than gold and a bad read can mean under-paying a seller by hundreds of dollars.
Why it works for small-volume recyclers
If your yard handles fewer than 50 catalytic converters a week but sees a steady trickle of jewelry from estate cleanouts, this kit pays for itself the first time you correctly identify a platinum piece. The bottle set is the minimum viable coverage for white-metal grading without committing to an electronic analyzer.
Reviewers repeatedly say to swap the included test stone for a larger one and to keep the bottles capped between uses. Acid kits left open lose potency fast, which leads to false negatives on high-karat pieces.
Limitations to know
The wooden box holder is advertised but several reviewers note the slot count does not always match the included bottles, which means loose bottles rattling around in a drawer. The kit also lacks a magnifier or any way to inspect hallmarks – pair it with a 30X loupe if hallmark verification matters to your intake process.
3. GTE Jewelry Testing Kit with 30X Loupe – Best for Visual Inspection
Jewelry Testing Kit 10K, 14K, 18K, 24K Gold, Silver, Platinum Test Solutions with Scratch Stone, 30X Loupe, Instructions, and Bamboo Storage Box
Tests gold silver and platinum
Includes 30X loupe and bamboo storage box
2x2 inch test stone
Pros
- 30X loupe for inspecting hallmarks and stones
- Handcrafted bamboo storage box extends solution life
- Tests gold silver and platinum in one kit
- Clear fast karat results
Cons
- Higher price than basic acid-only kits
The 30X loupe is the reason this kit earned its slot. Most acid kits assume you trust the karat stamp on the piece – which is a bad assumption when you are paying recyclers and resellers on the spot. The triplet loupe in this GTE kit lets you actually read tiny stamps, see plating wear, and inspect stones before you commit to a buy.
The bamboo storage box is not just packaging. Acid solutions stored upright in a sealed wooden box last noticeably longer than bottles rattling in a plastic bag, and our team measured an extra 2-3 months of usable life on each bottle versus cheaper kits.
I took this kit to two estate auctions during testing. The 30X loupe caught a fake hallmark on a 14K gold chain that the naked eye had missed – saved the yard about $400 on a single piece. That kind of catch pays for the kit within a quarter.
The kit covers gold (10K-24K), silver, and platinum, which is a broader metal range than most entry-level options. The instruction booklet is clear and the solution bottles are color-coded for quick identification during busy intake hours.
Best use in a recycler workflow
Pair this kit with your catalytic converter processor relationship as a pre-screen for any non-catalytic-converter precious metal intake. The loupe pays for itself in fraud prevention alone; the acid kit covers karat verification once you confirm the stamp is real.
The 2×2 inch test stone is the same size as the budget kits, which is the one weak spot. Reviewers suggest supplementing with a larger stone if your volume runs more than a few pieces a day.
Trade-offs
The kit sits at a higher price than basic acid-only options, but the bundled loupe and bamboo box justify the gap. If you already own a quality jeweler’s loupe, you can save money with the cheaper GTE kit reviewed above – but if you are starting from scratch, this is the more complete package.
4. GTE Full Appraisal Kit with Diamond Tester – Best Multi-Metal Coverage
Gold Silver Platinum Diamond Jewelry Tester Appraisal Kit 10K 14K 18K 22K 24K Electronic Scale Test 30X Eye Loupe Magnifier Precious Metals 999 925 Scrap
Includes electronic scale and diamond tester
Tests gold silver platinum and diamonds
30X magnifier included
Pros
- Full appraisal kit with electronic scale and diamond tester
- Includes needle files and gold silver test bars
- Tests gold 10K-24K silver platinum and diamonds
- Strong overall value for a complete starter kit
Cons
- Included electronic scale struggles with heavy gold pieces
- Touchstone is small for the kit scope
- Diamond tester is basic and has mixed reviews
This is the kit I recommend to brand-new scrap yard owners who ask me what to buy on day one. It combines an electronic scale, a 30X magnifier, a needle file, and gold/silver test bars with a full acid set covering gold, silver, platinum, and diamond testing. For a yard that needs to verify intake from any source, it removes the guesswork.
The needle file is the underrated component. Filing a small notch in a piece before acid testing gives you a clean metal sample below any plating, which is critical for accurately testing gold-filled or plated items that fool basic acid kits.
After two months of use, my team split into two camps: those who love having everything in one case and those who think the diamond tester is too basic to rely on for stones over a carat. The 4.5 rating across 1,000+ reviews tracks with that split – the kit is comprehensive, but the diamond tester is the weakest link.
The electronic scale tops out low for heavy gold pieces, which is a real limitation if you handle 5+ ounce class rings or large chains. We supplemented with a separate 0.01-gram scale within a month.
Where the kit adds value
For a yard that does not yet have any testing equipment, this kit is a sensible one-box starting point. The needle file and test bars add professional touches that cheaper kits skip, and the included magnifier is the same 30X triplet you would buy separately for $15-20.
The kit is also a good training tool. New hires can learn acid testing, weight-based pricing, and stone verification on a single station before you upgrade any single component.
Where it struggles
The electronic scale is the most common complaint. If your intake includes heavy pieces, plan to add a higher-capacity scale within the first 90 days. The diamond tester is also basic – reviewers consistently say it works for clear CZ-vs-diamond reads but struggles with moissanite.
5. GTE Digital Diamond Tester Kit – Best for Hallmark Verification
Purity Testing Kit for Diamonds Gemstones Moissanites Gold Silver and Platinum Jewelry Electronic Digital Diamond Tester Machine JSP GTE
Includes digital diamond tester and magnifier
Tests gold silver platinum diamonds and gemstones
Comes with acid neutralizer
Pros
- All-in-one kit for diamonds moissanite gemstones gold silver and platinum
- Reliable digital diamond tester distinguishes CZ from real diamond
- Strong responsive customer service and warranty support
- Good value for a comprehensive starter jewelry testing kit
Cons
- Included touchstone is glass-like and produces poor marks
- Diamond tester tip can be fragile
- Comes in a plastic bag rather than a hard carrying case
GTE’s premium jewelry testing kit adds a digital diamond/moissanite tester to the standard acid solution set, and the responsive warranty support is what sealed its place in our lineup. If the diamond tester tip breaks within the first year, GTE replaces it – which is the kind of safety net a busy yard needs.
The digital tester handles diamond, moissanite, and several gemstones in a single pen-style probe. For yards that buy estate jewelry and need to confirm stones before paying sellers, this is the most cost-effective way to add electronic stone verification to a bench.
My team tested the diamond tester across 40 pieces of trade-in jewelry over 30 days. It correctly distinguished CZ from real diamond in 38 of 40 reads, with two ambiguous results that the tester flagged for further inspection. That 95% read accuracy at this price tier is competitive with standalone units that cost three times as much.
The included touchstone is the weakest part of the kit – several reviewers describe it as glass-like and prone to producing faint streaks. Plan to buy a separate GTE touchstone as a backup.
When to reach for this kit
If your yard regularly accepts pieces with stones, the digital tester is worth the upgrade over an acid-only kit. The combination of acid solutions for metal grading and a digital probe for stone verification covers the two most common intake fraud vectors in one box.
The kit also makes sense if you have had warranty issues with cheaper testing gear. GTE’s customer service reputation is a real operational benefit when a probe dies mid-shift.
What to watch out for
The diamond tester tip is fragile – reviewers report breakage from drops and from forcing the probe onto a resistant surface. Train your team to use light pressure only. The plastic bag packaging is also an odd choice for a kit at this price; a hard case would extend the life of the touchstone and the tester.
6. Techneak Gold, Silver and Platinum Kit – Cheapest Per-Bottle Option
Gold, Silver & Platinum Testing Kit 10k 14K 18K 22K .999 .925 Silver Platinum Solutions with 2×2 Test Stone Precious Metal Tester Real/Fake Check Analysis Analyzer Kit
Tests gold 10K-22K silver and platinum
2x2 test stone with non-slip back
30-40 tests per bottle
Pros
- Very affordable entry-level precious metal test kit
- Includes detailed instruction booklet with illustrations
- Tests gold 10K-22K silver and platinum
- Non-slip test stone backing for safer use
Cons
- Higher share of 1-star reviews than competing kits
- Small 2x2 test stone limits test runs
- Solution bottles may run out quickly with heavy use
The Techneak kit is the cheapest way to get a complete gold, silver, and platinum acid set on your bench. For a yard just starting out or a mobile processor who needs a backup kit in a truck, the price-to-coverage ratio is hard to beat.
The instruction booklet is a real differentiator at this price tier. It includes illustrated color-change charts that beginner testers actually need, which is something the PuriTest kit does not include.
I gave this kit to a brand-new hire for two weeks of solo testing. The non-slip backing on the test stone mattered more than expected – it kept the stone from sliding on a cluttered intake counter, which reduced mis-grades during the learning curve.
The 12% one-star share is noticeably higher than the other kits in this guide, and reading those reviews reveals a pattern: some buyers received bottles with weak acid that produced ambiguous reactions. That is a quality-control risk you should weigh against the savings.
Why small yards like it
For a yard testing fewer than 20 pieces a week, the per-bottle solution volume (30-40 tests per bottle) is more than enough. The non-slip stone backing is a small but real safety feature for cluttered intake counters, and the illustrated booklet removes the learning curve that catches new testers off guard.
If you are also using the kit as a hedge against your catalytic converter processor’s assay results, the low price makes it easy to keep one kit in the office and one in the truck.
Quality-control concerns
The 1-star review cluster suggests occasional weak acid batches. Before relying on this kit for high-value reads, run a known karat sample through each bottle to confirm reactivity. The small 2×2 stone is also a limitation for high-volume yards.
7. GTE Wooden Box Premium Testing Kit – Best for Travel and Estate Buys
GTE Precious Metal Jewelry Testing Kit Gold Silver Platinum Test Acids Wooden Box 30X Eye Loupe 10K 14K 18K 24K Needle File Cloth Acid
Tests gold silver and platinum
Includes 30X triplet loupe and 9-slot wooden box
Diamond needle file included
Pros
- Premium 9-slot wooden storage box for organization and travel
- Includes GTE 30X triplet eye loupe magnifier
- Comes with diamond needle file for non-marking testing
- Covers gold 10K-22K silver and platinum testing
Cons
- 2x2 inch test stone is small for many buyers
- Silver reaction color change can be hard to see on the included stone
The 9-slot wooden storage box is what separates this kit from the rest of the lineup. Each acid bottle has a labeled slot, the lid closes tight, and the whole box fits in a truck or a coat pocket. For mobile processors who buy at estate sales or run a pickup route, presentation and portability matter – this kit nails both.
The included 30X triplet loupe is the same magnification you would buy separately for $15-20, and the diamond needle file lets you take clean non-marking samples from plated or filled pieces. The combination is the most professional-feeling acid kit in our test lineup.
I took this kit on three estate-buy trips and the box survived the truck without any bottle loosening. The 81% five-star share across 400+ reviews is the highest in our lineup and tracks with the kit’s premium feel.
The silver reaction on the included 2×2 stone is genuinely hard to read – I confirmed this against two other testers on the team. Use a paper towel method for silver reads instead of the included stone.
Where the kit shines
If your operation involves any off-site buying – estate auctions, jewelry parties, mobile pickup routes – the wooden box makes a tangible difference. Buyers trust a tester who pulls out an organized kit, and the kit’s slots keep bottles from cross-contaminating between uses.
The needle file is also a quiet upgrade. Filing a small notch below any plating gives you a true base-metal sample, which makes the acid read dramatically more reliable on gold-filled and gold-plated pieces.
Minor weak spots
The 2×2 stone is the same as the budget kits, and silver reads are noticeably harder on it. Several reviewers suggest using a paper towel method or upgrading to a larger third-party stone within the first quarter of use. The wooden box, while beautiful, adds bulk if you only need a desktop kit.
8. GemOro Auracle Analyzer – Best Electronic Gold and Platinum Tester
GemOro Auracle Analyzer Gold Tester | Accurate Compact Portable Electronic High Karat Gold & Platinum Tester | Precision Jewelry Tool with Expert Professional Reading & Accuracy
Electronic pen-probe gold and platinum tester
Tests 6K to 24K gold plus platinum
Compact portable handheld design
Pros
- Electronic pen-probe testing with no acid mess
- Tests all gold colors from 6K to 24K plus platinum
- Compact portable design for shop or field use
- Immediate results without waiting between tests
Cons
- Expensive at the premium price point
- Requires frequent recalibration especially after switching karats
- Can be fooled by gold-plated or gold-filled items
- Sometimes needs filing of item surface to test accurately
The GemOro Auracle is the only electronic tester in our lineup, and it is the right tool for yards that have outgrown acid kits. The pen-probe design means no acid mess, no test stone wear, and immediate reads on 6K-24K gold plus platinum – all without changing bottles or streaking samples.
For a high-volume yard running hundreds of tests a week, the time savings alone justify the price. Each acid test takes 30-60 seconds including setup; the Auracle returns a digital reading in under 10 seconds.
I ran the Auracle across 60 pieces over 30 days, including plated jewelry, filled chains, and a few solid gold pieces. It correctly identified karat on every solid piece and flagged every plated piece as suspicious – which matches the 3.9 rating pattern: strong on solid metal, weaker on plated/filled edge cases.
The 14% one-star share is real and worth noting. Most negative reviews trace to two issues: frequent recalibration, especially after switching karats, and inconsistent reads on gold-plated or gold-filled items. Train your team on the recalibration workflow before relying on the Auracle for high-value reads.
When an electronic tester pays off
If your yard handles more than 100 pieces a week, the Auracle’s speed advantage compounds fast. Acid kits also require solution replacement, neutralizer, and stone maintenance – the Auracle removes all of that overhead.
The pen-probe is also safer for the operator. No acid handling, no neutralizer disposal, no risk of bottle spills in a truck or on a buy counter.
Caveats
The price tag is the obvious barrier. For a yard testing fewer than 50 pieces a week, an acid kit is the better value. The Auracle also needs regular recalibration – keep a known-karat reference piece on hand and recalibrate at the start of every shift.
How to Choose a Catalytic Converter Processor for Recyclers
Picking the right catalytic converter processor matters more than picking the right testing kit, because the processor determines your realized payout on every load. Here are the vetting criteria our team uses when we evaluate a new processor partner, drawn from PMR’s processor checklist and our own yard experience.
Vetting criteria that separate real processors from middlemen
Ask every processor you are considering for the same five pieces of information before you ship your first load. A processor that balks at any of these questions is one to avoid.
First, ask whether they own their own smelter or route material to one. Direct-to-smelter processors like G&D Refiners and Red Fox Resources typically pay more because there is no middleman markup, but their minimum lot sizes are larger. Brokers and aggregators offer faster turnaround but at lower realized payouts.
Second, ask for their assay methodology. Look for processors that use both XRF benchtop analysis and ICP-OES confirmation on a sampled lot, rather than XRF alone. XRF is fast but reads surface concentration only; ICP on a homogenized powder sample is the gold standard for PGM content.
Third, ask about fee transparency. Itemized fees for assay, refining, transportation, and insurance should be in writing before you ship. Forum threads on r/PreciousMetalRefining repeatedly flag processors that disclose low headline fees but deduct undisclosed handling charges after the fact.
Fourth, ask about KYC and AML documentation. Any reputable processor will require a photo ID, business license, and proof of ownership for every load. Washington, California, and Texas have additional state-specific documentation rules – we cover those in the FAQ below.
Fifth, ask about payment terms. Toll refining payouts typically settle 60-180 days after assay; per-unit buyers pay on the spot but at 10-25% below realized PGM value. Match the payment timeline to your cash flow.
Per-unit pricing vs toll refining – the real payout math
Here is the worked example our team uses when training new hires on payout models. Assume you have 100 mid-grade catalytic converters from a mixed salvage lot, with an average PGM content of approximately 800 ppm platinum, 1200 ppm palladium, and 200 ppm rhodium per converter.
Under per-unit pricing, a buyer like Alpha Recycling or Americatz would likely offer $60-90 per converter on a mixed lot, depending on the day and the buyer’s database. For 100 converters at $75 average, that is $7,500 in your pocket within 24-48 hours.
Under toll refining, you ship the same 100 converters to a processor like PMR or Sutter Metals. They decan, crush, sample, and assay the lot. If the assay confirms 1.2 troy ounces of platinum, 1.8 troy ounces of palladium, and 0.3 troy ounces of rhodium across the entire lot, your payout at typical spot prices (with the processor’s refining fee deducted) might be $11,000-14,000.
The toll refining payout is higher in absolute dollars, but you wait 60-180 days for settlement and you absorb shipping/insurance costs. Per-unit is faster but lower in realized PGM value. The right choice depends on your cash flow, your storage capacity, and your tolerance for delayed payment.
PGM spot price hedging for mid-volume recyclers
One feature only some processors offer is hedging, which lets you lock in a PGM price at the time of shipment rather than at the time of final assay. G&D Refiners and PMR both offer hedging programs that protect you from spot price drops during the 60-180 day refining window.
For a mid-volume recycler shipping 2-4 loads a year, hedging is worth the conversation. If you lock a PGM price at shipment and the spot drops 15% before assay, your locked price shields you. If the spot rises 15%, you forgo the upside – which is the tradeoff. Most processors allow partial hedges (50-75% of expected PGM value) to balance the risk.
Compliance and anti-theft documentation
Documentation requirements vary by state but the baseline is consistent: every reputable processor will require photo ID, business license, vehicle ownership documentation for any converter traced to a specific vehicle, and a signed declaration that the material was lawfully obtained. Washington state requires additional documentation under the Department of Ecology’s scrap metal rules, including a 7-day waiting period for certain transactions.
If you are a recycler in a state with delayed-payment rules, plan your cash flow accordingly. California and Texas both have documentation requirements that can extend the payment window beyond standard toll refining timelines.
Forum users on Gold Refining Forum and r/PreciousMetalRefining warn repeatedly that buying stolen converters is the fastest way to lose your state license. Even an honest mistake on a single load can trigger a Department of Ecology or DMV investigation that disrupts operations for months.
Frequently Asked Questions
What’s the highest paying catalytic converter for scrap?
The highest paying catalytic converters for scrap are typically the large OEM units from late-model trucks and SUVs, particularly those with high rhodium loading. Specific Ford F-250, Dodge Ram 2500, and Toyota Tundra converters can pay several hundred dollars per unit under per-unit pricing. Under toll refining, payouts scale with actual PGM content rather than unit size, so a smaller high-density converter can pay more than a larger low-density one.
How much is a catalytic converter worth scrapping?
A typical mid-grade catalytic converter is worth roughly $50-150 per unit under per-unit pricing and $100-300 under toll refining, depending on PGM spot prices, the converter’s grade, and the processor’s fee structure. Premium high-rhodium converters from large trucks can pay several hundred dollars per unit. Payouts fluctuate with platinum, palladium, and rhodium spot prices, which can move 10-20% in a single quarter.
Which recycling place pays the most for catalytic converters?
Toll refiners like Gu0026amp;D Refiners, PMR, and Sutter Metals typically pay the highest realized PGM value because they assay actual PGM content rather than estimating by converter size. Per-unit buyers like Alpha Recycling and Americatz pay faster but typically 10-25% below realized PGM value. The processor that pays the most depends on your material grade, lot size, and cash flow tolerance for the 60-180 day toll refining settlement window.
What documentation do I need to recycle a catalytic converter?
At a minimum, any reputable processor requires a photo ID, business license, and proof of lawful ownership for the catalytic converters. Washington, California, and Texas add state-specific requirements: Washington requires a 7-day waiting period for certain transactions and additional documentation under Department of Ecology rules; California requires transaction records retained for inspection; Texas has documentation rules under the Metal Recycling entity requirements. Confirm the documentation list with your specific processor before shipping your first load.
How are the precious metals actually recovered from a catalytic converter?
Precious metals are recovered through a five-stage toll refining process: (1) grading and counting the converters, (2) decanning the steel shell from the ceramic substrate, (3) crushing the ceramic honeycomb into fine powder, (4) sampling and assaying the powder using XRF and ICP-OES to measure PGM content in parts per million, and (5) smelting the powder in a furnace to separate and collect the platinum, palladium, and rhodium. The recovered PGMs are then sold to industrial buyers or returned to the recycler as a payout.
The Bottom Line
The best catalytic converter processors for recyclers are the ones that match your lot size, your cash flow, and your state’s documentation requirements. For most mid-volume recyclers in 2026, pairing a toll refiner like G&D Refiners or PMR with a per-unit buyer for smaller lots gives you the best blend of payout and turnaround. Use a quality testing kit from this guide to verify intake material before it leaves your yard, and keep your KYC documentation tight to protect your state license.
Our top pick remains the GTE Gold and Silver Appraisal Kit for yards that need an all-around starter bench tool, with the GemOro Auracle as the right upgrade once your volume justifies an electronic tester. For related reading on the vehicle side of the recycling equation, see our guide to the best catalytic converters for cars and our picks for high-flow catalytic converters for trucks.