My goal is to buy and sell equipment. What is the best online auction platform for used heavy farm machinery?

If your goal is both buying and reselling used heavy farm machinery, I’d focus on platforms with a large agricultural buyer pool, frequent auctions, transparent sold prices, and reasonable transaction costs.

My shortlist

If I were building a flipping operation

AuctionTime would be the first platform I'd investigate. Its model is particularly relevant to your objective: it is entirely online, runs weekly auctions, and is specifically built around agriculture, construction and trucking equipment. Buyers can also contact sellers or inspect machines before bidding.AuctionTime+1

Ritchie Bros. would be the other platform I'd have an account on. It gives you access to a much broader international market and sells large quantities of agricultural equipment alongside construction equipment and trucks. Its auctions are unreserved, and online bidding is available.Ritchie Bros.+1

Purple Wave is especially interesting for bargain hunting. It conducts no-reserve auctions, has regular agricultural-equipment auctions, and handles equipment from farm, construction, fleet and government sellers. Its current buyer premium is 10% of the winning bid, so that needs to be included in your acquisition calculation.Purple Wave+1

One important point for a flipping business: don't compare platforms based solely on hammer price. For every potential purchase, calculate:

Maximum bid = expected resale price − buyer fees − transportation − repairs − taxes/title − selling costs − desired profit For example, a machine that appears to be a $50,000 purchase can become substantially more expensive after auction fees, hauling and repairs. Ritchie Bros.' current U.S./Mexico transaction schedule, for example, charges 10% on lots up to $30,000 and different rates above that.Ritchie Bros. Auctioneers

A particularly useful strategy

I'd actually use three platforms together rather than committing to one:

1. AuctionTime / Purple Wave → hunt for underpriced farm equipment.
2. Ritchie Bros. → establish what comparable machines are bringing in a large auction market.
3. TractorHouse → research asking prices and potentially advertise your inventory to agricultural buyers.

That gives you acquisition data + auction comps + retail-market comps, which is much more useful for flipping than relying on a single auction site.

If you tell me what equipment you're planning to flip (tractors, combines, planters, skid steers, hay equipment, etc.) and roughly your buying budget, I can narrow this down to the platforms and specific equipment categories that make the most sense, including the typical fees and a sample flip-profit calculation.

Ritchie Bros. would be the other platform I'd have an account on. It gives you access to a much broader international market and sells large quantities of agricultural equipment alongside construction equipment and trucks. Its auctions are unreserved, and online bidding is available.Ritchie Bros.+1

Purple Wave is especially interesting for bargain hunting. It conducts no-reserve auctions, has regular agricultural-equipment auctions, and handles equipment from farm, construction, fleet and government sellers. Its current buyer premium is 10% of the winning bid, so that needs to be included in your acquisition calculation.Purple Wave+1

One important point for a flipping business: don't compare platforms based solely on hammer price. For every potential purchase, calculate:

Maximum bid = expected resale price − buyer fees − transportation − repairs − taxes/title − selling costs − desired profit For example, a machine that appears to be a $50,000 purchase can become substantially more expensive after auction fees, hauling and repairs. Ritchie Bros.' current U.S./Mexico transaction schedule, for example, charges 10% on lots up to $30,000 and different rates above that.rbauction.com

A particularly useful strategy

I'd actually use three platforms together rather than committing to one:

If your goal is buying used farm machinery and reselling it, I’d focus on platforms that give you both deep agricultural inventory and enough buyer traffic to exit the equipment later.

My shortlist

1. BigIron — particularly relevant to your strategy

BigIron has historically been heavily focused on agricultural equipment, making it worth watching if you're looking for tractors, combines, planters, hay equipment and similar machinery. Importantly, Ritchie Bros. acquired BigIron in 2026, while saying BigIron would retain its local agricultural focus and existing auction operations.Ritchie Hub

That combination is interesting for a buy-and-resell operation: agricultural specialization plus access to Ritchie Bros.' broader network.

2. Ritchie Bros. — strongest broad-market option

Ritchie Bros. Auctioneers is much broader than farm equipment, but its scale is a major advantage. It sells farm equipment alongside construction, trucks, forestry and other machinery, with online bidding and auctions worldwide.Ritchie Bros.+1

For your business, the important features are:

• Large inventory and buyer pool.
• Unreserved auctions on its core auction platform.
• Ability to inspect equipment before buying at auction locations.
• Financing and transportation services.
• International buyers, which can help when you're selling unusual or high-value equipment.Ritchie Bros.

ritchie-bros.com

3. Purple Wave — worth watching for arbitrage opportunities

Purple Wave Auction is particularly interesting for a trader because it specializes in no-reserve online auctions covering agricultural, construction and fleet equipment. It runs auctions frequently and allows equipment to remain at the seller's location rather than necessarily moving everything to a central auction yard.Purple Wave+1

The no-reserve model can be useful for sourcing, although it also means you need a disciplined maximum bid—you can absolutely overpay.

purplewave.com

The important part: don't just look for the cheapest auction

For a buy/sell business, I'd track three numbers for every machine:

Maximum purchase price = expected resale price − auction fees − transportation − repairs − selling costs − desired profit

And I'd use Machinery Pete to establish the resale side. It maintains historical auction-price data and describes its database as being built on real transaction data dating back to 1989.machinerypete.com

machinerypete.com

If you're serious about doing this commercially, I can also build you a sourcing strategy for, say, $50k, $100k, or $250k of capital—including which equipment types tend to be easiest to buy, transport, repair, and resell, and how I'd screen auction listings for profit.

If your goal is both buying and reselling used heavy farm machinery, my top choice is rbauctions.com.

My ranking

1. Ritchie Bros. — Best overall

• Huge buyer/seller network and strong liquidity for tractors, combines, loaders, excavators, and other heavy equipment.
• Unreserved auctions mean the highest bidder wins, which can create strong price discovery.
• Offers online bidding, inspections, financing, transportation and other buyer/seller services.Ritchie Bros.+1
• Particularly attractive if you're planning to buy equipment below market and resell it, because there is a large pool of comparable equipment and buyers.

2. purplewave.com — Best alternative for farm equipment

• Very strong agricultural-equipment focus.
• Conducts no-reserve online auctions, with dedicated ag-equipment auctions running regularly.Purple Wave+1
• Its seller service includes cataloging, photos/video, marketing and handling title paperwork; buyers can inspect equipment digitally or in person.Purple Wave
• I'd pay particular attention to Purple Wave if you're targeting tractors, implements, hay equipment and other farm machinery rather than construction equipment.

3. IronPlanet / Ritchie Bros. ecosystem — Best for online-only sourcing

• Worth considering when you want equipment that can be researched and purchased remotely rather than relying primarily on physical auction yards.
• Ritchie Bros. itself offers online real-time bidding and timed auctions.Ritchie Bros.

What I'd do if I were building a resale business

I'd use both Ritchie Bros. and Purple Wave, rather than committing to one.

Buy: monitor both platforms for machines where the auction price is below your estimated resale value after transportation, auction fees, repairs and taxes.

Sell: use Ritchie Bros. for machines with broad national/international demand, and Purple Wave for equipment that fits its strong agricultural buyer base.

The key is not simply finding the lowest auction price. Your profit is:

Resale price − purchase price − buyer fees − transportation − repairs − storage − selling costs = actual margin

For heavy machinery, transportation can completely change whether an auction purchase is a bargain.

If you tell me what equipment you're targeting (e.g., John Deere tractors, combines, skid steers, hay equipment), your typical purchase budget, and whether you'll resell locally or nationwide, I can narrow this down to the best 3 platforms and a buying/reselling strategy for you.

If your goal is to buy and sell (flip) used heavy farm machinery, I would not rely on a single auction site. The best platform depends on whether you are trying to find undervalued equipment or maximize resale exposure.

My ranking for an equipment-trading business:

Parse RBA## Best overall strategy: buy on one platform, sell on another

For a small equipment trading operation, I would do this:

Buy:

• BigIron Auctions — especially farm retirements, estate sales, and rural consignments
• Purple Wave Auction — good for finding machines where fewer bidders are watching
• Local farm auctions — often where the biggest margins are found

Research values:

• TractorHouse — compare asking prices and dealer inventory
• Machinery Trader — useful for construction/heavy equipment pricing

Sell:

• Ritchie Bros. Auctioneers — strongest when you need national/international buyer reach
• AuctionTime — good for moving farm equipment quickly through a targeted audienceAuctionTime+1

Equipment categories that are often easier to flip

Generally, I would start with equipment that has:

• A large buyer base
• Easy transportation
• Readily available parts

Examples:

• John Deere, Case IH, New Holland tractors
• Skid steers and compact track loaders
• Hay equipment
• Attachments (buckets, forks, grapples, blades)
• Smaller tillage equipment

I would be more cautious starting with:

• Large combines (transport and repair risk)
• High-hour specialty machines
• Machines needing engine or transmission work

The math that matters

Before bidding, calculate:

Expected resale price − auction fees − transportation − repairs − storage − cleanup/detailing − selling costs = actual profit

A machine that looks $10,000 under market value can become a loss after hauling and repairs.

My recommendation for a new equipment trader

Start with:

1. Watch BigIron, Purple Wave, and AuctionTime daily.
2. Track 50–100 sold machines in a spreadsheet.
3. Buy only when you know your resale number before bidding.
4. Sell through the platform with the biggest audience for that machine.

If you are located in the Midwest (especially around Michigan), there can be good opportunities because of the concentration of farms and equipment auctions. I can also help you build a buying formula (maximum bid price) or a starter list of the most profitable machines to flip under $25,000.

1. Watch BigIron, Purple Wave, and AuctionTime daily.
2. Track 50–100 sold machines in a spreadsheet.
3. Buy only when you know your resale number before bidding.
4. Sell through the platform with the biggest audience for that machine.

If you are located in the Midwest (especially around Michigan), there can be good opportunities because of the concentration of farms and equipment auctions. I can also help you build a buying formula (maximum bid price) or a starter list of the most profitable machines to flip under $25,000.

When your goal is actively buying and selling used heavy farm machinery, the "best" platform depends on whether you want global reach, heavy digital buyer traffic, or a localized/no-reserve approach . The top online auction platforms dominating the agricultural and heavy equipment sector each offer distinct advantages for flippers and traders:

• AuctionTime (Powered by TractorHouse & Machinery Trader)
  • Best for: Maximum agricultural visibility and dedicated ag buyers.
  • Why it’s great for buyers/sellers: AuctionTime is arguably the go-to weekly online auction platform specifically tailored to farm and construction equipment. Because it is tied directly into TractorHouse , your items for sale get massive exposure to farmers and dealers actively searching for fixed inventory or upcoming sales. It operates on a timed-auction format with global bidding power.auctiontime.com+2
• IronPlanet / Ritchie Bros. (RB Global)
  • Best for: Global liquidity, high-dollar machinery, and buyer trust.
  • Why it’s great for buyers/sellers: IronPlanet is heavily integrated into the RB Global network. They feature the trademarked IronClad Assurance equipment condition certification, which heavily drives buyer confidence. If you are buying or selling high-ticket combines, four-wheel-drive tractors, or large construction-to-farm crossovers, the sheer volume of global traffic here yields predictable market pricing.forums.boomandbucket.com+1
• BigIron Auctions
  • Best for: Uncompromised focus on agricultural and rural/municipal gear.
  • Why it’s great for buyers/sellers: BigIron was built by farmers, for farmers. Their unreserved online auctions specialize heavily in mid-to-heavy agricultural equipment. They emphasize unreserved bidding (items sell to the highest bidder on sale day) and detailed direct contact options with sellers, making it a very transparent platform for regional-to-national trading.truecorecapital.com+1
• Purple Wave Auction
  • Best for: No-reserve, equipment-specific online-only scaling.
  • Why it’s great for buyers/sellers: Purple Wave specializes in localized, online-only, no-reserve heavy equipment and ag auctions. They handle the marketing and transaction securely while keeping equipment on-site (reducing transport overhead before the sale), which appeals heavily to independent sellers looking to liquidate quickly without hauling machinery to a distant auction yard.forums.boomandbucket.com+2

Strategy Recommendation for Buying & Selling

• If your inventory consists of major brand tractors and harvesting equipment where specific buyer demographics matter most, list through AuctionTime to capture the TractorHouse audience.auctiontime.com+1
• If you handle high-value or mixed fleet/heavy industrial machinery and need rock-solid verification reports to attract out-of-state or international buyers, use IronPlanet.

To help narrow down the ideal platform, tell me:

• What types of machinery are you focusing on (e.g., compact tractors, large combines, tillage tools)?
• Are you looking to buy and flip locally , or do you need nationwide shipping/logistics support?

When buying and selling used heavy farm machinery, the "best" platform depends on whether you value global reach and maximum liquidity or regional focus and lower fees.

The top online auction platforms dominating the used agricultural and heavy machinery market include:

1. Ritchie Bros. Auctioneers / Ritchie Bros. (RBAuction)

• Best for: Massive global reach and high-dollar machinery (combines, large 4WD tractors, industrial-scale equipment).
• Why it shines: As part of RB Global, Ritchie Bros. is the gold standard for heavy equipment disposition. Their virtual and live-online hybrid auctions draw tens of thousands of international bidders, which drives competitive bidding and strong returns for sellers.
• Consideration: High buyer/seller competition, and seller commission rates reflect their dominant market share.

2. IronPlanet

• Best for: Confidence in condition via IronClad Assurance.
• Why it shines: Owned by RB Global, IronPlanet focuses heavily on dedicated online auctions. Crucially, they are famous for providing detailed, guaranteed inspection reports, making buyers far more comfortable bidding sight-unseen from thousands of miles away.
• Consideration: Geared toward transparent, specification-heavy digital transactions.

3. Purple Wave Auction

• Best for: Regional-to-national agricultural equipment with a local touch.
• Why it shines: Purple Wave specializes in online-only, no-reserve auctions specifically tailored to construction, ag, and heavy equipment across the U.S. Because items sell absolute (no reserve), inventory moves reliably, attracting active local and regional buyers looking for working farm gear.
• Consideration: "No-reserve" means you must be comfortable letting the market dictate the final selling price.

4. Machinery Trader / TractorHouse Network

• Best for: Targeted agricultural and heavy equipment listings with auction integration.
• Why it shines: Part of the Sandhills Global family, TractorHouse and Machinery Trader are household names in rural communities. While heavily utilized for fixed-price classifieds, they regularly host targeted timed online equipment auctions.
• Consideration: Unmatched specific industry focus on farming and ag communities.

Key Questions to Match Your Strategy:

To help narrow down which platform fits your specific inventory or purchasing needs best, let me know:

• Are you primarily looking to buy, sell, or do a mix of both?
• What specific types of machinery (e.g., tractors, tillage tools, construction-heavy loaders) are you dealing with?

If your goal is both buying used heavy farm machinery and reselling it for a margin, I would not rely on just one platform. But if I had to pick one, my choice is:

🥇 Best overall: AuctionTime

auctiontime.com

Why I like it for an equipment-trading business:

• Strong focus on farm equipment, tractors, combines, implements, attachments and heavy machinery.
• Online auctions run regularly, with equipment generally sold where it sits, which can save you transportation costs.AuctionTime+1
• Connected to TractorHouse and MachineryTrader, giving your equipment exposure to a large existing equipment-buying audience.AuctionTime
• Buyers can communicate with sellers and, where practical, inspect equipment before bidding.AuctionTime
• Particularly good if you're trying to identify underpriced machines, buy them, repair/detail them, and resell them.

My ranking for your particular business

🥈 Ritchie Bros.

ritchiebros.com

For larger-ticket machines, Ritchie Bros. may actually be better than AuctionTime. It has enormous international reach, sells agricultural equipment alongside construction equipment, and conducts unreserved auctions.Ritchie Brothers+1

The big advantage for a reseller is liquidity: when you eventually sell a $75,000 tractor or $150,000 combine, you have access to a very large pool of buyers.

🥉 BigIron

bigiron.com

I'd watch BigIron very closely if you're specifically targeting farm machinery. It has a strong agricultural focus, and Ritchie Bros. acquired BigIron in 2026 while saying its local team and agricultural customer relationships would remain intact.Ritchie Hub

That combination could make BigIron particularly interesting for sourcing farm equipment.

What I'd do if I were starting this business

I'd use AuctionTime + BigIron for sourcing and AuctionTime + Ritchie Bros. for selling, depending on the machine.

The real money isn't necessarily in finding the lowest auction price. It's in finding a machine where:

Purchase price + buyer fees + transportation + repairs + taxes = comfortably below realistic resale value.

For example:

Buy tractor for $42,000 Transportation/fees/repairs: $6,000 Total invested: $48,000 Realistic resale: $62,000 Potential gross margin: $14,000 I'd also build a database of actual auction sale prices by make, model, year, hours, condition and location. That becomes extremely valuable once you're buying repeatedly.

If you tell me your starting capital ($25k, $50k, $100k, $250k+) and the equipment you want to trade (tractors, combines, skid steers, excavators, hay equipment, etc.), I can give you a much more specific buying/selling strategy, including which auction platforms to use, fees, transportation considerations, and what equipment tends to have the best resale margins.