If you're shopping for used oil field lathes, the listing title only tells part of the story. These machines go by several names, two lathes with the same model name can have very different capacity, and one detail buyers regularly need is often left out of the conversation until late: whether the lathe has a rear chuck, or at least the prep to add one.
Below is what we look at first when a buyer asks us about a used oil field or hollow spindle lathe, with examples from machines Toolquip has listed.
The Short Answer
Start with the spindle bore and the chuck through-hole, since together they decide what pipe will actually pass through the machine. Then confirm whether the lathe has a rear chuck, rear chuck prep, or neither. Prep is usually built in at the factory, and adding it later is rarely simple, so settle it before you buy.
What Is an Oil Field Lathe?
Oil field lathe, oil country lathe, hollow spindle lathe, and big bore lathe are mostly different names for the same kind of machine: a lathe with a spindle bore large enough for pipe and tube to pass through the headstock, so the end of a long part can be threaded or turned while the rest extends out the back. Some builders also call them double chuck lathes, because the typical setup grips the work with one chuck at the front of the spindle and a second at the rear.
Pipe threading for the oil and gas industry is the classic use, but shops also run these machines for rolls, long shafts, and other large diameter work. Toolquip groups them under Oil Field & Hollow Spindle Lathes, though some, depending on the seller, are listed simply as CNC lathes.
What Spindle Bore Do You Need on a Used Oil Field Lathe?
Swing and distance between centers are usually the first numbers a listing shows, but on an oil field lathe the spindle bore matters more. If your largest pipe won't pass through the spindle, the rest of the specs don't help.
Don't assume two machines with the same model name share the same bore. Chevalier has offered its FBL-530 slant bed lathe with spindle bores up to 320 mm, or about 12.6 inches. Our 2009 Chevalier FBL-530 listing shows a 7.5 inch bore, while Chevalier advertised the later FBL-530C with a 12.5 inch bore. Confirm the bore on the specific machine rather than relying on the model name or a brochure.
The chuck matters just as much. A large spindle bore only helps if the chuck has a through-hole big enough to match, so check the chuck's hole size as well as the spindle's. The same goes for the rear chuck, if there is one.
The Hankook Protec 9NC is another CNC oil country lathe that turns up in this category. As with the Chevalier, compare the bore and chuck details on the listing against the largest pipe you plan to run. Many of these machines use FANUC controls, and Chevalier listed the FANUC 0i-TD as standard on the FBL-530. If you're curious why that matters on the used market, see our post on why FANUC became the go-to CNC standard across machine brands.
Current Toolquip Listings
See all Chevalier listings and Hankook listings, or browse Oil Field & Hollow Spindle Lathes.
Rear Chuck or Rear Chuck Prep: The Detail Buyers Often Leave Out
Buyers regularly ask us for an oil field lathe without mentioning the rear chuck, and then it turns out to be the feature they need most. A rear chuck grips the pipe at the back of the spindle, supporting long, heavy work that would otherwise hang out of the headstock. Chevalier describes the dual chuck setup on its FBL-530C series as an option that adds stability for longer parts.
Where buyers get caught is the difference between a rear chuck and rear chuck prep. Prep means the back end of the spindle was built to accept a rear chuck, usually with a rear spindle nose or adapter. Some builders include it as standard and others sell it as an option, and it can be one of the more costly options on a new machine. That's one reason you'll find used oil field lathes that were ordered without it.
If a machine has the prep but no rear chuck, adding one is mostly a matter of finding and mounting the right chuck. If it has no prep at all, we treat that as a major question rather than a small add-on. Whether a spindle can be adapted later depends on how the machine was built, and when it can be done, it is rarely a quick or inexpensive job. Check with the manufacturer or a qualified rebuilder before counting on it.
| Setup | What It Means | What to Ask |
|---|---|---|
| Front and rear chucks installed | Set up for long pipe work as is | Size and through-hole of each chuck, manual or air |
| Rear chuck prep, no rear chuck | Spindle was built to accept a rear chuck | How the rear chuck mounts and which chucks fit |
| No rear chuck prep | Front chuck only | Whether your parts need rear support at all |
When you send an inquiry, say which of these you need. It saves time on both sides and helps us point you to machines that fit.
What Else to Check on a Used Oil Field Lathe
- Turning diameter over the cross slide, not just swing over the bed. The cross slide usually limits the largest diameter you can actually cut.
- Distance between centers, compared with the length of the parts you'll hold between the chuck and tailstock.
- Steady rests: how many come with the machine and what diameter range they cover.
- Chuck type on each end. Manual 4-jaw chucks, 3-jaw chucks, and air chucks are all common, and some machines combine them.
- Threading needs. If you thread pipe, confirm the control and setup handle the thread types you run.
- Tailstock and any extras like a follow rest or chip conveyor that your work depends on.
If you'd like a second opinion on whether a machine fits your work, send us your largest pipe size and part length along with the listing, and we'll tell you what we know about it.
Looking for an oil field lathe with a specific bore or rear chuck setup? Tell us what you need and we'll watch for it.
Submit a Wanted MachineThis article is general information shared for educational purposes and reflects our experience at Toolquip. Model names, specifications, and features vary by year and configuration, so verify details with the manufacturer and the specific machine, and do your own research before making any purchasing or business decisions.