Miller Big Blue 500X Eco Pro machine auction prices

As of 7 November 2026, hammerhistory.com has recorded 16 auction sales of the Miller Big Blue 500X Eco Pro machine with a published hammer price, closed on 24 September 2026, on 2 auction sites in 1 country. The middle half of the sales fetched EUR 2.000 to EUR 2.500, with a median of about EUR 2.500 (rounded, in euros, before the buyer's premium). One sale is free to read: a 2013 Miller Big Blue 500X Eco Pro machine sold for USD 3.000 on 24 September 2026.

Known on 2 auction sites 16 sold with a price 0 at auction now 16 seen at auction

15 hammer prices are locked. See what every Miller Big Blue 500X Eco Pro really sold for and know a fair price before you bid. Pay once, open at once, new sales included for a year.

EUR 19one payment, a year of sales

Everything, EUR 129 a month EUR 1,290 a year Every price on the site. Cancel any time.

All sales 16

Sold	Built	Hours	Auction house	Place	Photos	Hammer price
2026-09-24 2013 Miller Big Blue 500X Eco Pro Engine Driven Welder	2013	unknown	rbauction.com	Jebel Ali Free Zone, ARE, AE	2	EUR 2.690USD 3.000 FREE
2026-09-24 2011 Miller Big Blue 500X Eco Pro Skid-Mounted Engine Driven Welder	2011	unknown	Auction house	AE	2	in the report
2026-09-24 2011 Miller Big Blue 500X Eco Pro Skid-Mounted Engine Driven Welder	2011	unknown	Auction house	AE	1	in the report
2026-09-24 Miller Big Blue 500x Eco Pro Skid-Mounted Engine Driven Welder	unknown	unknown	Auction house	AE	2	in the report
2026-09-24 Miller Big Blue 500x Eco Pro Skid-Mounted Engine Driven Welder	unknown	unknown	Auction house	AE	1	in the report
2026-09-24 2011 Miller Big Blue 500X Eco Pro Skid-Mounted Engine Driven Welder	2011	unknown	Auction house	AE	2	in the report
2026-09-24 2011 Miller Big Blue 500X Eco Pro Skid-Mounted Engine Driven Welder	2011	unknown	Auction house	AE	1	in the report
2026-09-24 2012 Miller Big Blue 500x Eco Pro Skid-Mounted Engine Driven Welder	2012	unknown	Auction house	AE	2	in the report
2026-09-24 2012 Miller Big Blue 500x Eco Pro Skid-Mounted Engine Driven Welder	2012	unknown	Auction house	AE	1	in the report
2026-09-24 2012 Miller Big Blue 500X Eco Pro Skid-Mounted Engine Driven Welder	2012	unknown	Auction house	AE	2	in the report
2026-09-24 2012 Miller Big Blue 500X Eco Pro Skid-Mounted Engine Driven Welder	2012	unknown	Auction house	AE	1	in the report
2026-09-24 2012 Miller Big Blue 500x Eco Pro Skid-Mounted Engine Driven Welder	2012	unknown	Auction house	AE	2	in the report
2026-09-24 2012 Miller Big Blue 500x Eco Pro Skid-Mounted Engine Driven Welder	2012	unknown	Auction house	AE	1	in the report
2026-09-24 2012 Miller Big Blue 500X Eco Pro Engine Driven Welder	2012	unknown	Auction house	AE	2	in the report
2026-09-24 2012 Miller Big Blue 500X Eco Pro Engine Driven Welder	2012	unknown	Auction house	AE	1	in the report
2026-09-24 2013 Miller Big Blue 500X Eco Pro Engine Driven Welder	2013	unknown	Auction house	AE	1	in the report

Click a sale to see that machine with its photos and details. A hammer price under EUR 100 is free to read.

More Miller models

Miller Trailblazer 3258 sold · 6 open Miller Millermatic 2527 sold · 1 open Miller CP3027 sold Miller Bobcat 2506 sold · 8 open Miller Big 400 Pro6 sold · 2 open Miller Big Blue 450 Duo CST4 sold Miller Big Blue Air Pack4 sold Miller CST-2804 sold Miller Millermatic 2004 sold Miller Suitcase 12RC4 sold Miller XMT3044 sold Miller BIG 403 sold · 3 open

Miller Big Blue 500X Eco Pro

Welding and soldering equipment

The Miller Big Blue 500X Eco Pro is a diesel engine driven welder generator rated at 500 amps, built for heavy pipeline, structural and construction welding away from mains power. It handles stick, TIG, MIG and air carbon arc gouging, and provides auxiliary power for tools and lights. The Eco Pro version adds fuel saving features that lower engine speed when the welding load allows.

We recognise this model across the auction sites and keep every one we see together.

On a used one

Ask for the engine hours and service record, check the welding output and auxiliary power under load, and inspect the control panel and leads for damage.

About Miller

Miller Electric is an American maker of arc welding equipment, building MIG, TIG and stick welders, plasma cutters and engine driven welder generators such as the Bobcat and Big Blue ranges. It is part of the Illinois Tool Works group.

Founded 1929 · Appleton, United States · Part of Illinois Tool Works

All Miller models

What the Miller Big Blue 500X Eco Pro fetched

EUR 2.000 to 2.500

Middle half from2.000

Median2.500

to2.500

The middle half of 16 recorded sales, rounded, in euros, before the buyer's premium. Each sale's own price opens with the sale.

16sold with a price

0at auction now

2auction sites

1countries

15 more hammer pricesin the report · EUR 19 once

sold, price lockedfree to read

Questions about Miller Big Blue 500X Eco Pro auction prices

What does a Miller Big Blue 500X Eco Pro sell for at auction?

In the 16 auction sales we recorded, the middle half fetched EUR 2.000 to EUR 2.500, with a median of about EUR 2.500. These are rounded hammer prices in euros, before the buyer's premium and VAT; what one machine fetches depends on its year, hours and condition, which the table shows next to each sale.

How many Miller Big Blue 500X Eco Pro auction sales are on record?

16 sales with a published hammer price, closed on 24 September 2026, on 2 auction sites in 1 country. 0 more closed without a sale.

Is a Miller Big Blue 500X Eco Pro at auction now?

Not at the moment. The lots of this model that come to auction appear on this page while they are open, and every sale that closes with a price is added to the table.

Are the Miller Big Blue 500X Eco Pro hammer prices free to read?

The oldest sale of every model is free to read, and so is every hammer price under the site's floor. The other 15 hammer prices of the Miller Big Blue 500X Eco Pro open with an account: every sale of the model for a year, or one sale on its own.

Hammer prices are what the auction house recorded when the lot closed, before the buyer's premium, in the currency of the sale. A sale listed on a house's own site and on its platform counts once. Doubt a figure? Open the sale and its listing is linked there. How prices are recorded.