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Our Services
Sell us your spare inventory! Let us know what parts you have, and we will make you an offer.
We offer one of the largest inventories of industrial automation and MRO parts, so you can easily find what you need.
Should you require a part we don't have in stock, we’ll tap into our global supplier network to source it for you.
Our certified technicians offer comprehensive repair services and test capabilities for your industrial parts.
2,304,655 parts to 65,046 customers in 167 countries
SIGMA Surplus, a division of SIGMA Group, makes it easy to buy and sell MRO spare parts. We serve all manufacturing industries with our wide selection of surplus PLCs, HMIs, VFDs, servo drives, sensors, electronic components, and much more! We carry the brands you know and trust, from Allen-Bradley to Siemens, Square D, ABB, and hundreds more.
Top Categories
Explore Our Top Parts
Siemens
3UF7101-1AA00-0
Allen Bradley
700-TBR24
Siemens
6ES7335-7HG01-0AB0
Siemens
505-7028-A
Schneider Electric
140XBP01600
Automation Direct
782-2C-24D
Siemens
3RH1921-1HA22
Ultralight
OGLU 2000W ST
Siemens
6ES7431-0HH00-0AB0
Mitsubishi
QD75M4
OMRON
Y92B-N50
Schneider Electric
170INT11003
Mitsubishi
QD75MH4
Mitsubishi
QJ71GP21-SX
Siemens
6ED1052-1FB00-0BA6
Siemens
6ES7134-4JB51-0AB0
Automation Direct
QL2X1-D24
Most Popular Brands
We add stock to our inventory daily
DISCLAIMER: SIGMA Surplus and SIGMA Group are not affiliated with nor an authorized distributor or representative of any manufacturer, brand or product listed. All items sold by SIGMA Surplus are covered under SIGMA Surplus' warranty and not the manufacturer warranty. Designated trademarks, brand names and brands appearing herein are the property of their respective owners.
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