How to Choose Drilling Rigs for Wholesale: A 7-Step Procurement Checklist

I’m the purchasing administrator for a 40-person distribution company. I manage equipment and parts ordering—roughly $4.8 million a year across 11 vendors, and I report to both operations and finance. This checklist is the one I wish I’d had in 2020, when I first started buying drilling rigs for wholesale.

If you’re a procurement manager, a quarry operator, or a dealer who needs to know how to choose a drilling rig for wholesale, this is for you. Seven steps. Step 4 is the one most people skip.

1. Define the Application First, or You’ll Buy the Wrong Machine

When I first started, I assumed the machine with the biggest engine and highest depth rating was automatically the best value. That advice sounds obvious. It wasn’t obvious to me. Three field failures later, I learned the hard way that “best” depends on rock type, hole pattern, site access, and duty cycle.

Before you get quotes, write down:

• Rock type and compressive strength
• Required hole diameter and depth
• Production rate—holes per shift, not just “fast”
• Site access, bench height, and power availability

For example, a Sandvik Construction track-mounted rig can make sense for a mobile contractor, while a mining-class drill might be overbuilt for the same job. Match the machine to the application, not the brochure.

2. Name the Rock Drill Manufacturer Behind the Brand

Here’s the thing: a rig can say “Sandvik” on the side and still have components from several suppliers. I’m not saying that’s bad—I just need to know what I’m buying. In wholesale, you’re buying a package you need to support.

Ask the dealer: “Who manufactures the rock drill? What model? What about the compressor, dust collection, and controls?” If you want to standardize on one rock drill manufacturer, put the component list in the purchase order.

The question everyone asks is “how deep can it drill?” The question they should ask is “what compromise did they make to get that number?” Depth ratings are usually measured under ideal conditions. Ask for the assumptions.

3. Normalize Rock Crusher Specifications Before Comparing

If your order includes a crushing circuit—and most quarry equipment orders do—you need to compare rock crusher specifications in the same units. This sounds easy. It isn’t.

One manufacturer lists cone crusher throughput at a 20mm closed side setting. Another lists it at 10mm. Both are accurate. They’re just not comparable. Same for jaw crushers: feed opening, motor power, and capacity can all be stated differently.

I got burned on this in 2023. A quote showed 450 tons per hour from a jaw crusher. The fine print said “at 4-inch CSS on quartzite.” Our application was limestone at a 6-inch setting, and the real number was closer to 320. The supplier wasn’t trying to hide anything. I just didn’t match the spec to my application.

Put every quote in a single table:

• Closed side setting used for the capacity rating
• Maximum feed opening
• Motor power
• Throughput for your material, not ideal material
• Wear parts cost per ton

4. Ask for Cost per Meter, Not List Price

Acquisition price is what your finance team wants to compare. This is the step most procurement teams skip. It’s not the number that matters. What matters is cost per drilled meter, because that’s what makes a drilling fleet profitable.

Ask the supplier for a projection: “Using our rock type and hole pattern, what’s the expected cost per meter for the first 12 months?” Include bits, steels, fuel, maintenance, and downtime.

Per the FTC advertising guidelines, quantitative performance claims should be truthful and substantiated. If a vendor quotes “lower cost per meter” without data, that’s not a spec—it’s a wish. I’d rather spend 10 minutes getting the methodology than deal with mismatched expectations later.

5. Spare Parts: Verify Availability Before You Sign

This is where I have a ton of opinions. In wholesale, your customer only calls you when a machine is down. If the critical wear part takes three weeks to arrive, your rental revenue disappears and your customer starts looking elsewhere.

Before you sign, check:

• Lead time for normal wear parts
• Critical parts stock in your region
• OEM vs. aftermarket part numbers
• Return and reorder process

I knew I should verify parts stock before ordering, but thought, “what are the odds we’ll need a compressor in the first 300 hours?” That was the one time it mattered. A $900 part got held in customs for 12 days while our customer’s crew sat idle.

Not ideal, but workable. Now I write parts availability into the contract. If I’m buying a Sandvik unit, I also ask which genuine parts are stocked at the local dealer—because “genuine parts” are worthless if they’re not physically close.

6. Documentation: The Step That Delays Permits

When I first started, I assumed “same specifications” meant the same documentation from every manufacturer. Didn’t verify. Turned out one supplier couldn’t provide a complete declaration of conformity, and a customer’s permit was delayed by six weeks.

For wholesale drilling rigs, the paperwork is part of the product. Put it in the purchase order:

• CE and/or applicable local declarations
• Hydraulic and electrical schematics
• Operator and maintenance manuals in the required language
• Recommended spare parts list and BOM
• HS code and customs classification support

If a dealer says “we can send that after the sale,” treat it as a red flag. Documentation is not an afterthought.

7. Evaluate the Dealer, Not Just the Brand

We use a lot of Sandvik Mining equipment, and the global support network is a big reason. But the support for a specific order comes from the local dealer, not from the logo on the brochure. You’re also buying the dealer’s response time, service capacity, and parts inventory.

Ask for two current customers who run the same class of rig. Call them. Ask about response time, training quality, and parts availability. If the dealer hesitates, treat it as a red flag.

Bottom line: no machine is perfect, and no supplier can guarantee 100% uptime. But if you follow these seven steps, you’ll spot the big issues before they become your inventory problem. The goal isn’t to buy the cheapest drilling rig. It’s to buy the one that can keep working—with parts, support, and documents to back it up.