CNC lathe sale details that go beyond spindle speed
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A CNC lathe advert should tell the buyer what turning machine is being offered and what is included with it. Age and maximum spindle speed leave many practical questions unanswered.
Start with the machine's full identity. Then describe the fitted configuration and the supporting equipment. Keep the manufacturer's stated specification separate from observations about this used machine's condition.
Build the record around the actual turning setup
A buyer may need to understand the workholding, turret, tailstock, bar arrangement or additional spindle configuration. Record the features that are present and supported by evidence. Do not use a model-family brochure to fill gaps without checking the actual build.
The Haas operator and service manual library, for example, lists lathe documentation and separate material for bar feeders and supporting systems. The lesson for the sale record is straightforward: collect the documents for the supplied package, including its accessories.
| Part of the record | Information to gather | Common ambiguity to resolve |
|---|---|---|
| Identity | Model, serial number and available build record | Similar model names or later alterations |
| Turning envelope | Verified maximum cutting diameter and length for the fitted turret and workholding | Swing diameter mistaken for cutting diameter |
| Bar and axis dimensions | Verified bar capacity, spindle bore, X and Z travel, plus Y travel if fitted | Spindle bore treated as usable bar capacity |
| Main spindle and workholding | Documented spindle details, chuck identity and supplied jaws | Chuck shown in photographs but excluded from sale |
| Turret | Type and supplied toolholders | Holders still needed on another machine |
| Tailstock or additional spindle | Fitted configuration and service evidence | Options copied from a general brochure |
| Bar equipment | Feeder identity, liners and documented compatibility | Shared or incomplete feeder equipment |
| Control | Actual control and available option records | Software entitlement not established |
| Condition | Fault reports, service evidence and dated observations | Unqualified descriptions such as "excellent" |
Do not force the machine into every row. Some lathes will not have a feeder, tailstock or additional spindle. A clear "not fitted" statement is useful when a buyer might otherwise assume the feature is present.
A manufacturer specification may distinguish maximum part swing from cutting diameter, and cutting length from axis travel. These figures answer different questions. The Haas ST-20 specification, for example, lists cutting diameters by turret type and qualifies cutting length by workholding. Use its structure as a prompt, but obtain figures for the exact age and configuration of your own lathe. Do not copy current-model capacities into an older machine listing.
Explain the workholding package
A chuck without its expected components may not be the package a buyer imagined. Identify supplied jaws, backplates, collets and fixture equipment separately. Record matched sets and keep unidentified pieces out of compatibility claims.
It is also worth checking who owns custom workholding. A customer fixture should not become part of the lot merely because it is mounted on the machine.
Use the chucks, jaws and fixtures guide to organise those details. The aim is to show exactly what accompanies the lathe, rather than imply that the workshop's entire tooling stock is included.
Give specialist configurations their own evidence
For a sliding-head machine, the feeder and other matching equipment deserve particular attention. Read the sliding-head lathe and bar-feeder guide before deciding whether to divide that package.
Where live tooling or a sub-spindle is involved, identify the fitted hardware and the relevant control options. The turning-centre options guide explains the evidence questions. Do not assume an option is available simply because another machine with the same badge has it.
These details can be more useful to a buyer than a long list of general specifications. They help the buyer decide which follow-up questions to ask.
Use the counter as a recorded fact
Write down the counter label as displayed and retain a dated image where safe access permits. Avoid reducing several different readings to an unexplained "hours" figure. There is more on this in the spindle-hours guide.
If service records indicate a replaced component or altered counter, keep that evidence with the description. The record should explain what is known without attempting to calculate how much working life remains.
Before circulating the advert, compare the written inclusion list with the photographs. Remove customer information from public-facing material through an agreed process. Make sure the stated collection arrangements reflect the actual package, including loose accessories.
Send the completed lathe record to UK Auction Group to discuss the sale. The engineering and CNC hub provides the related preparation guides.
Sources
This guide gives general information. Equipment-specific, legal, tax and safety decisions may need a qualified adviser or competent specialist. The guides do not promise sale prices, fees or results.