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Millions of parts are available for same-day shipping and next-day delivery.
45+ years of experience to help you find an ideal replacement or repair solution.
We stand behind our quality by offering a complimentary 2-Year DO Supply Warranty on all products.
DO Supply is a global leader in replacement parts for industrial automation equipment. Our mission is to elevate the standard of expert support, speed, and reliability for your need-it-now automation replacement and repair needs. Whether it's PLCs, drives, motors, HMIs, or more, you can count on us for the best service and fastest solutions.
Shop with confidence knowing that we offer fast shipping and best-in-class customer service. Explore our large inventory of in-stock automation parts backed by the guarantee of a 2-year DO Supply Warranty.
Save money on getting your automation parts repaired for less, backed by our 2-year DO Supply Warranty. We offer quality repairs at the best prices, carried out by expert technicians.
We want to buy your industrial automation surplus equipment, including PLCs, drives, motors, HMIs, and more.
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Discover insightful industry knowledge
Mechanical wear in motor-driven systems is inevitable. It usually stems from repeated stress events, such as hard, abrupt stops, frequent cycling, or sudden load changes. These events can be reduced with motor control to minimize wear and tear on your system. This is where AC drives, or variable frequency drives (VFDs), come into play. They are installed for superior motor control, allowing the user to adjust voltage, frequency, torque, and speed to allow for a more efficient system. Learning how to properly do so will pay dividends in a smoother-running system. Direct-on-line (DOL) motor starts are the primary initiator of premature mechanical wear in industrial systems. When a three-phase induction motor is energized without drive control, inrush current reaches 600–800% of full-load rated current within the first 100–200 milliseconds. The resulting electromagnetic torque spike can reach 150–300% of rated torque and is transmitted instantaneously through the shaft, coupling, and...
Allen-Bradley PanelView terminals from Rockwell Automation are core Human-Machine Interface (HMI) solutions for industrial automation. While ideal for climate-controlled industrial settings, cold storage and outdoor deployments present significant extreme environmental challenges, such as sub-zero temperatures and direct UV & solar radiation. Optimizing PanelView terminals for such extreme environmental conditions requires strategic hardware selection (e.g., robust enclosures such as NEMA 4X-rated enclosures), precise thermal management strategies, and comprehensive preventive maintenance practices. This article explores the operational parameters of PanelView terminals deployed in extreme industrial environments. It presents a comparative analysis of specific PanelView terminal models, practical environmental mitigation strategies, and proactive failure-prevention techniques. Standard PanelView terminals are designed to operate within specific temperature ranges (typically 0°C to...
A bottle of water or a frozen dinner may look simple and unassuming on the outside. You pick it up, toss it into your cart, and go about your day. Yet, behind the scenes lie a choreographed dance of machinery and control systems that cook, pack, and label your next easy meal or bottled beverage. Food and beverage automation comes in many different flavors, from motors to run conveyor lines to robot arms that sort packages to make palletizing easier. Today, we will highlight one of the most important pieces of the system: the PLC, the glue that holds together an industry that relies on consistency, sanitation, uptime, and quality control. The Food and Beverage industry is one of the largest manufacturing sectors in America, accounting for 16.8% of all U.S manufacturing sales and 15.4% of U.S. manufacturing employment as of 2021, according to the USDA. That’s over 1.7 million workers ensuring that the quality of your next meal or drink is as you would expect it to be. On top of that...