A completed investment project, a decommissioned line, a technology change or standardization of the machine park — in each of these scenarios, brand new (factory new) automation components are left on the shelves that no one will ever install. PLC controllers, frequency inverters (VFDs), servo drives, power supplies and safety relays can tie up significant capital in the warehouse, and their value only declines over time. The solution is industrial automation buyback — a service that puts surplus stock back into circulation as spare parts for maintenance departments, while your company recovers cash and warehouse space. In this guide we show how to prepare your surplus for sale and what the process at RECOSTOCK looks like step by step.
Where automation surplus in manufacturing companies comes from
Automation surplus stock, also known as new-old-stock (NOS), consists of brand new (factory new) components that never made it into a machine. In practice, it arises in a few typical situations:
- Project leftovers — the integrator or the investment department orders parts with a margin, and after the line is commissioned, the excess controllers, I/O modules and power supplies stay on the shelf.
- Technology change or standardization — the plant switches, for example, from one drive family to another, and the entire service stock for the old platform becomes redundant.
- Plant closures and relocations — when production is shut down, the spare parts warehouse often contains unopened components in their original packaging.
- Excess service stock — parts bought “just in case” for a machine that has since been upgraded or sold.
Why surplus stock loses value with every passing year
Automation manufacturers regularly phase out older product families and replace them with new platforms. As long as a given series is still widely used in running machines, a brand new (factory new) unit from surplus is a sought-after commodity — maintenance departments are happy to reach for it, as it avoids rebuilding the control cabinet for the successor model. But as the machine park is gradually replaced, demand shrinks and the same part becomes harder and harder to sell. Then there is physics: electrolytic capacitors in frequency inverters (VFDs) and power supplies age even while sitting on the shelf, seals in pneumatic components lose their elasticity, and warehouse humidity damages packaging and promotes corrosion of connector contacts. The conclusion is simple: the sooner surplus stock goes back into circulation, the more it is worth.
Industrial automation buyback — how to prepare a list for a quote
A fast and reliable quote starts with the unambiguous identification of every item. In automation, a single family covers dozens of variants: a SINAMICS series frequency inverter or an IndraDrive servo drive comes in many power ratings and option configurations, a PNOZ safety relay has variants differing in the number of channels and supply voltage, a Flexi Soft safety controller is built from different modules, and a PROmax power supply comes in many voltage and current versions. That is why what matters is the full part number (MPN) from the nameplate, not just the series name.
Step 1: write down the numbers from the nameplates
Walk through your shelves and note down the complete MPN from each nameplate along with the quantity. Avoid blindly copying numbers from purchase documents or your ERP system — it happens that the box contains a different version than the paperwork says. If the part is shrink-wrapped, you will usually also find the number on the packaging label.
Step 2: photograph the nameplates and packaging
A photo of the nameplate resolves doubts faster than any description. Photograph the nameplate or label of every item, and for larger lots also take a general shot of the shelf or pallet. Good photos speed up the quote and eliminate mistakes when identifying the variant.
Step 3: describe the packaging condition and completeness
Note whether the packaging is original and intact, whether the manufacturer's seals remain unbroken, and whether the connectors, documentation and mounting accessories are included. This information directly affects the quote, so it is worth providing it right in your submission.
What raises and what lowers the quote for surplus stock
Even among brand new (factory new) components, quotes can vary considerably. From the buyer's perspective, what matters is certainty that the part is exactly the variant they are looking for and that no one has installed it before. The table below summarises the key factors:
| Raises the quote | Lowers the quote |
|---|---|
| Original, intact manufacturer packaging | No packaging or substitute packaging |
| Intact seals and anti-static protection | Broken seals, signs of opening |
| Completeness: connectors, documentation, mounting accessories | Missing items from the set |
| Legible nameplate and full MPN | Illegible markings, uncertain identification |
| Product families still widely used in industry | Very niche items that are hard to verify |
How industrial automation buyback works at RECOSTOCK
The process is deliberately simple and predictable — from submission to settlement:
- Form on the website — you send us a list of items: MPNs, quantities, and photos of the nameplates and packaging.
- Quote within 48 hours — based on the list and photos, we prepare a specific price offer for the entire lot.
- Collection from anywhere in Poland — once the offer is accepted, we arrange collection of the goods, no matter where in the country your warehouse is located.
- Invoice-based settlement — you settle the sale of surplus stock like any other B2B transaction, with a complete set of documents for your accounting department.
What happens to the components after buyback
Surplus stock we buy back goes to the RECOSTOCK store, where every product is identified by the number from its nameplate and the photos show the exact unit from our warehouse — the buyer sees precisely what they will receive. Components, from drives and servo drives to power supplies and safety controllers, are covered by a 12-month warranty and shipped within 24 hours with a VAT invoice. Your surplus stock doesn't end up as scrap — it genuinely extends the life of machines in other plants.
Do you have items on your shelves that will never be picked for production again? Prepare an MPN list following the steps above and send it via the quote form — you will receive a response within 48 hours.
FAQ
Do I need to know the part numbers of all the components?
Identification is always based on the full MPN from the nameplate, but you don't have to copy it out by hand. A legible photo of the nameplate or the packaging label contains all the markings and makes it possible to determine the exact product variant unambiguously.
Can I sell just a few items, or does the buyback only cover entire warehouses?
We quote every enquiry individually based on the list you send. Whether you have a few units left over after a completed project or are clearing out a warehouse after a plant closure, the easiest way is simply to submit an enquiry through the form — you will receive a specific offer for the whole batch within 48 hours.
How do collection and settlement work?
Once the quote is accepted, we arrange collection from anywhere in Poland and settle the transaction based on an invoice. You sell the entire batch in a single transaction — no listings to post, no shipping to individual buyers, no retail-level settlements to handle.
Does RECOSTOCK also buy back parts removed from machines?
We specialize in brand new (factory new) components from surplus stock (new-old-stock). If you are not sure how to classify a given batch, describe its condition in your enquiry or ask via contact form.
