Siemens Parts for Sale

PLC Machinery carries one of the deepest selections of surplus and obsolete Siemens automation parts in the country — SIMATIC S7-1500/1200 PLCs, SINAMICS drives, SIMATIC HMIs, ET 200 distributed I/O, and SIRIUS contactors and overloads. Much of our stock is unused surplus in original packaging (new-old-stock), and we're a strong source for discontinued lines like S7-300, S7-400, and MICROMASTER that are no longer produced but still run on plant floors everywhere. Every part is graded by condition, backed by our own 90-day warranty, and ships same day. Don't see your part number? Contact us — our inventory turns constantly.

Shop by Siemens Product Family

SIMATIC S7 1500 / 1200 S7-300 / 400 Legacy SINAMICS Drives MICROMASTER Legacy Drives SIMATIC HMI Panels ET 200 Distributed I/O SIRIUS 3RT Contactors LOGO! Micro PLC

Frequently Asked Questions

Is surplus Siemens hardware as good as factory-new?

Much of our Siemens stock is unused surplus in original packaging (new-old-stock) and performs identically to a new unit. Everything is graded by condition and backed by our 90-day warranty, so there are no surprises.

Can you source obsolete S7-300, S7-400, or MICROMASTER parts?

Yes — discontinued Siemens lines are a specialty. S7-300, S7-400, MICROMASTER and similar are no longer manufactured but still run in thousands of facilities. If you don't see a discontinued part, contact us; we may have it or be able to find it.

Do you stock SINAMICS drives and SIMATIC HMIs?

Yes — current SINAMICS families, legacy MICROMASTER drives, and SIMATIC HMI panels are regular stock. Search by model (G120, S120, etc.) or use the family buttons above.