Selling rotary tables and probing systems from CNC machines
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A rotary table or probe can be offered separately from its CNC machine, but the sale description must say exactly which parts transfer. The visible unit may depend on interfaces, controls, cables or licensed functions that remain with the machine.
Decide the package before assigning lot numbers. Otherwise the machine and accessory descriptions can both promise the same supporting hardware.
A rotary table needs more than a model name
Record the rotary's exact identity, serial number and documented version. Then identify any separate control, supplied cables and relevant machine-control information.
Haas's rotary compatibility reference distinguishes rotary versions, motor types, control generations and firmware requirements. It demonstrates why a physically suitable rotary is not automatically compatible with every machine carrying the same brand.
Use the reference that applies to the actual equipment. Do not turn a manufacturer's conditional compatibility entry into a general “fits all” claim, or prescribe modifications from a sale checklist.
If the accessory has been part of a five-axis arrangement, distinguish the verified function from the appearance of the hardware. The five-axis capability guide explains the difference between indexed positioning and simultaneous machining.
A probe is part of a communication system
Renishaw's machine-tool probe information identifies compatible interfaces for its probe types. A probe body alone therefore should not be described as a complete working system.
Identify the probe, receiver or interface, associated hardware and supplied accessories. Ask the manufacturer or competent service provider what the proposed separated package includes and what a future installation would need to establish.
Keep machine-tool probes distinct from CMM probe systems. A shared manufacturer name does not make those systems interchangeable.
Complete a compatibility enquiry sheet
Prepare one sheet per proposed accessory lot.
| Question | Information to provide |
|---|---|
| What is the accessory? | Make, exact model, serial number and version markings |
| Where is it installed? | Current machine and control identity |
| What is included? | Identified control, interface, cables and loose accessories |
| What remains behind? | Any shared or machine-retained hardware |
| What evidence exists? | Installation record, manual, service report or dated supplier reply |
| What is the known condition? | Observed functions, faults and periods out of use |
| What needs confirmation? | Compatibility, entitlement or incomplete components |
| What separation work is required? | Question for the competent specialist, not a seller-designed method |
The enquiry should ask about the proposed package, not merely whether the accessory once worked on the existing machine.
A specialist may need additional identification before answering. Leave that item unresolved until the information is available rather than inferring it from a connector photograph.
Allocate the hardware before comparing prices
Create a simple list with three columns: stays with machine, goes with accessory, and decision pending. Put every relevant component in one column.
For example, a separate control box might be included with the rotary while a machine-installed interface remains behind. That is only an illustrative allocation, not a recommended configuration. The manufacturer or specialist must establish what the actual arrangement permits.
The tooling lotting comparison helps weigh a combined package against separate lots. Include the extra identification, specialist work and collection coordination in that discussion.
Any software or licensed machine option needs its own answer. Follow the software handover guide rather than assuming that a hardware allocation transfers an entitlement.
Describe the result plainly
A useful listing names the accessory and the included parts, then states the limits of the compatibility evidence. “Removed from machine X” can describe provenance, but it does not prove suitability for a buyer's machine Y.
Do not disconnect or dismantle equipment to discover the sale boundary. Obtain the relevant specialist advice and keep the agreed scope with the inventory.
Send the allocation list and compatibility replies to UK Auction Group. That gives the sale discussion a defined accessory package and a clear account of what remains with the CNC machine.
The engineering and CNC hub links the connected 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.