Many factories begin a CNC spare parts list by writing down the brand and model number. That is useful, but if the list only contains brand names and model numbers, it may still be too thin when a machine stops.
The maintenance team needs to know which machine uses the part, which function or axis it affects, whether the same fault appeared before, and whether a similar part has already been replaced. This article continues the topic from Which Key Parts Should Be Recorded First on Multi-Brand CNC Equipment.
Record the Full Model Number
For industrial automation parts, the full model number is the first detail to record. It should not be shortened to a general series name or written from memory. The safest method is to keep the model exactly as it appears on the nameplate.
FANUC parts may include prefixes such as A06B, A16B, A20B or A02B. Siemens products often include 6ES, 6AV, 6SL, 6SN or 6FC series numbers. Mitsubishi parts may come from MR, MDS, FR, Q, FX or GT product lines.
Keep Nameplate Photos Together
A written model number is helpful, but a nameplate photo is usually more reliable. It can preserve the model, voltage, capacity, serial number and version information. For servo amplifiers, PLC modules, control boards, HMI panels and motors, this photo often gives the supplier a better starting point than typed text alone.
Link Models with Equipment
A common problem is that the list records the part number but not the machine where the part is installed. The same Siemens module may be used on several machines. The same FANUC amplifier may relate to different axis positions.
Machine context makes the list much more useful. It also connects back to the management direction in Where Spare Parts Management Should Start for Multi-Brand Automation Lines.
Record Product Condition and Supply History
For discontinued or older models, the list should record whether previous purchases were new, stock, used, repaired or refurbished. It should also show whether test photos, packing photos, warranty terms or delivery records were provided.
If a model becomes difficult to source, the factory can compare realistic options earlier. This is closely related to Obsolete Spare Parts Risk in Legacy CNC Equipment.
Make the List Useful for Suppliers
A supplier can often start with a model number, but accurate checking is faster when the request includes model, quantity, machine function, nameplate photos, old-part photos, condition requirements and destination country.
VCOCNC uses these details to check available industrial automation spare parts, replacement options, repair support and shipping timing without repeated questions.
Frequently Asked Questions
What information should a spare parts list include?
Record the full model number, machine position, production line, nameplate photo, quantity installed, previous replacement dates, supplier contacts, and product condition options. The more context, the faster sourcing becomes during downtime.
Why are nameplate photos important?
FANUC, Siemens and Mitsubishi parts often share similar model prefixes but differ in suffixes, voltage ratings, or firmware versions. A clear nameplate photo removes guesswork and helps suppliers confirm the exact match faster.
How do we handle different model number formats across brands?
Record the model number exactly as it appears on the nameplate. Do not shorten or rewrite it. FANUC uses A06B-xxxx formats, Siemens uses 6SN/6FC/6FX series, and Mitsubishi uses MDS/MR series. Each brand has its own naming rules.
How should repair history be recorded?
For each part, note the fault symptom, replacement date, supplier used, product condition received (new/used/refurbished), and whether the replacement worked correctly. This history helps predict future failures and speeds up repeat sourcing.
