If you're trying to figure out McCloskey equipment specs, lead times, or whether a used jaw crusher is worth the risk, this is for you. I coordinate rush orders and parts for a quarry supply company—200+ emergency jobs over six years, a few expensive mistakes, and enough scar tissue to have opinions.

I'll answer the questions I actually get, in the order I usually get them. And yes, I'll deal with the weird search results too.

Why does 'McCloskey' bring up insurance, dogs, and Marvel?

Because McCloskey is a common surname—Irish, if you're curious. If you searched for farmers insurance joe mccloskey stinky fish, you're looking for a completely different person. The fish thing? No idea. I fix crushers, not internet mysteries (note to self: never Google that again).

Same deal for where does mark mccloskey live—that's his business. Simparica for dogs is a veterinary medication, not a screening attachment. The Falcon and the Winter Soldier is a Marvel show—different kind of screen entirely. And why is henry not playing is a sports question. Check a box score, not a spec sheet.

This page is about the other McCloskey—the one that builds crushers, screeners, and stackers for quarries and mines. If that's what you need, keep reading.

What should I check before buying a used McCloskey jaw crusher?

I don't have hard data on used-market failure rates—wish I did—but based on six years of sourcing parts for quarry clients, three things cause most of the pain:

  1. Undercarriage wear. Track chains and rollers take a beating. A machine with 4,000 hours on soft rock can be in better shape than one with 2,000 hours on granite.
  2. Jaw plate condition. New plates run a few thousand dollars. If they're shot, factor that into your offer.
  3. Service records. No records means no deal for me. That's a red flag, not a negotiation tactic.

The hour meter tells part of the story (this was back in 2022, when used prices were insane). The rest is in the wear parts.

What are the real specs on the J50V2 and R230?

Manufacturer spec sheets are a starting point, not gospel. The J50V2 is a 50-inch jaw crusher—roughly 1,000 mm—with a claimed output in the 350–400 tons-per-hour ballpark, depending on material and settings. The R230 screener is a tracked unit with a 14-foot by 5-foot deck (about 4.3 m × 1.5 m).

Here's the thing nobody tells you: throughput numbers are optimistic. Wet material, oversized feed, and worn screens can knock 20–30% off the brochure figure. Ask for a demo on your actual material, not the dealer's stockpile.

Are McCloskey stackers worth it for small quarries?

It's tempting to think a stacker is just a conveyor with wheels. But the real value is reducing loader hours and double-handling. For a small quarry moving 200–300 tons a day, a used McCloskey stacker for sale can pay for itself in labor savings within a year or two—assuming you have the space to set it up properly.

To be fair, if you're under 100 tons a day, a telehandler and a bucket might be cheaper. Run the math on your own volume before you buy.

What's the deal with the 2023 ES250?

The ES250 is a screener—a compact unit for smaller jobs or tight sites. The 2023 model year brought some updates, but I'd check the specific unit's build date and service history rather than trusting the model year alone. Dealers sometimes list machines as '2023' when they were built in late 2022 (as of January 2025, this is still a common listing quirk).

When is McCloskey the wrong choice?

I'll say it: we're not the right fit for every job. If you need a massive fixed-plant installation—think 1,000+ tph with custom conveyors and structural steel—call a specialist in stationary plants. That's not what mobile McCloskey equipment is built for, and pretending otherwise wastes everyone's time.

The vendors I trust most are the ones who say 'this isn't our strength—here's who does it better.' That kind of honesty earns repeat business for everything else.

How fast can you actually get parts in an emergency?

Depends on the part and the day. In March 2024, a client called at 6 a.m. needing a replacement screen box for a J50V2. They had a concrete pour scheduled in 36 hours. Normal lead time was 5–7 days. We found the part at a regional dealer, paid about $1,200 extra in freight, and had it on site by the next morning. Missing that deadline would have cost them a $40,000 penalty clause.

Bottom line: standard turnaround often includes buffer time vendors use to manage their production queue. It's not necessarily how long your part takes. Build the relationship before you need the favor.