Quality Products
Our products are rigorously tested and cleaned, backed by a 2-year DO Supply warranty.
DO Supply is a global automation parts reseller focused on hard-to-find and obsolete industrial automation products. Based out of Raleigh, NC, we service customers worldwide, providing excellent customer and sales support, as well as offering our top-of-the-line warranty on all parts sold.
Our products are rigorously tested and cleaned, backed by a 2-year DO Supply warranty.
We offer various shipping options from UPS, FedEx Priority Overnight, DHL and similar. We also ship internationally via DHL, FedEx, and UPS.
While other automation experts have some expertise, we have nearly half a century, allowing us to help you find the ideal replacement or repair solution.
We are a leading global supplier of industrial automation replacement parts, dedicated to providing expert support, speed, and reliability. We offer a huge inventory of need-it-now surplus PLCs, drives, motors, HMIs, and more. Trusted worldwide, we supply parts from 1981 to today by manufacturers such as Allen Bradley, GE, Eaton Cutler Hammer, Mitsubishi, Johnson Controls, and more. With an extensive inventory of surplus products, we are sure you will find what you are looking for. Our commitment to quality and service is reflected in our A+ Better Business Bureau rating. We guarantee prompt delivery and responsive support, empowering businesses to streamline operations and enhance productivity through reliable automation solutions
We pride ourselves on being your need-it-now destination, specializing in immediate solutions for hard-to-find and obsolete replacements for PLCs, drives, motors, HMIs, and more.
Save money with our repair service backed by a 2-year DO Supply warranty, serviced by US-based technicians.
As industrial automation specialists, we focus on top brands like Allen Bradley, GE, Eaton Cutler Hammer, Mitsubishi, and Johnson Controls, sourcing hard-to-find and discontinued parts. Our dedicated team ensures quality through meticulous testing and repairs. With fast shipping and exceptional customer service, we offer a seamless experience. Plus, our in-house repair technicians provide repair services for most products.
Discover insightful industry knowledge
PowerFlex variable frequency drives help reduce annoying tripping during extreme mechanical overloads, which helps control industrial motor loads. Heavy industrial processes often face jams, high-inertia starts, and abrupt torque surges. A PowerFlex drive uses dynamic voltage control, advanced thermal modeling, and active current limiting instead of instantly shutting down to protect hardware. These integrated control systems let the drive withstand brief overloads and enable continuous motor operation. By understanding how a PowerFlex drive handles high-current demands, system engineers can maximize plant uptime, protect mechanical connections, and avoid costly production-line shutdowns during unexpected surges. Source PowerFlex 70 Drives Here All PowerFlex drives have sophisticated internal thermal memory algorithms that determine motor heating in real time without the need for external temperature sensors. The drive determines the thermal condition of the power semiconductor...
Alternating Current (AC) drives, commonly known as Variable Frequency Drives (VFDs), are critical components in modern industrial automation systems. By adjusting the frequency and voltage supplied to an AC motor, they precisely regulate its speed and torque. In industrial applications such as manufacturing, material handling, HVAC systems, machine tooling, water treatment, and chemical processing, AC drives enhance process control, improve operational flexibility, and significantly reduce energy consumption, especially in variable-flow fan and pump systems. However, simply installing an AC drive does not guarantee optimal system performance. How effectively the connected AC motor maintains the required speed and responds to fluctuating loads depends entirely on proper drive selection, accurate parameter tuning, and proper AC drive commissioning. Incorrect parameter settings, misconfigured operating limits, or failure to execute the AC drive’s motor identification (autotuning) when...
No expiry date is stamped on your SLC 500 chassis, and the hardware doesn’t track cycle tables. A controller that scans correctly today will continue to scan. The question for a maintenance engineer, however, is what happens at two in the morning when the processor, power supply, or output card dies: how long until your line is running again? That number, the time to recover, not its age, defines the maximum amount of time you can responsibly run your old system. What follows will summarize what Rockwell Automation’s own documentation says about that and where it is silent. Yes. Discontinuation describes its supply, not its runability. Rockwell’s life cycle migration profile MIGRAT-PP004 defines what the manufacturer means by these cycle steps. At the first stage, Active Mature, the part is fully supported, and a newer family is also available. End of Life is the stage where the discontinuity has been announced, and the item can still be ordered. Once discontinued, the item is no...