How We Price Used Industrial Robots

Pricing a used industrial robot is surprisingly hard. Unlike cars, there's no Kelley Blue Book for robotics. Sellers rely on gut feel, outdated dealer quotes, or whatever happens to show up on eBay that week. Buyers face the same problem from the other side.

At Harmonic Range, we built a pricing engine that works more like a commercial real estate appraisal than a simple lookup table. Here's how it works.

The Problem with Asking Prices

If you search for a FANUC LR Mate 200iD online, you'll find listings ranging from $5,000 to $30,000 for what looks like the same robot. The spread exists because asking prices reflect seller optimism, not market reality.

Our engine distinguishes between verified sold prices and asking prices. When we only have asking prices, we apply a market discount based on historical sold-to-asking ratios we've observed across hundreds of transactions.

Comparable Sales: The Foundation

Every estimate starts with comparable sales data — actual transactions for the same or similar robot models. We weight these comparables by several factors:

• Recency: A sale from last month is weighted more heavily than one from two years ago. Market conditions shift, and newer data is more predictive.
• Transaction type: Verified sold prices carry more weight than asking prices, even after our discount adjustment.
• Completeness: A comp with full details (condition, controller, components) is more useful than a bare listing.

Adjustment Factors

Raw comparable prices tell part of the story. A robot in "excellent" condition with an R-30iB Plus controller, teach pendant, and cables is worth significantly more than a "for parts" unit sold bare.

We apply three adjustment layers:

• Condition adjustment: Each point on our 1-10 condition scale represents roughly a 10% price difference. An excellent robot (9-10) commands a meaningful premium over a fair condition unit (5-6).
• Controller generation: Newer controller generations (R-30iB Plus) carry a premium over older ones (R-J3). This reflects both capability and parts availability.
• Included components: A complete system (controller + pendant + cables) is worth more than the arm alone. Missing a controller can reduce value by 20% or more.

Confidence Scoring

Not all estimates are created equal. We assign a confidence level based on how much data supports the estimate:

• High confidence: 5+ comparable sales with good data completeness. We show you the price range immediately.
• Medium/Low confidence: Fewer comparables or sparse data. Rather than show a potentially misleading number, we route these to our specialists for manual review.

This is deliberate. We'd rather tell you "we need to review this" than give you a number we're not confident in.

What's Next

We're continuously expanding our comparable sales database, adding support for more brands (ABB, KUKA, Yaskawa), and refining our adjustment models. The goal is simple: give every robot seller and buyer a trustworthy starting point for negotiation.

If you're looking to sell a used industrial robot, get a free quote — it takes about two minutes.