Machine Link™
Core CNC/DNC file transfer software for sending, receiving, editing, and managing G-code programs. Reliable RS-232 serial communication with every CNC machine in your shop, starting at $195.
Controlink Systems LLC has been solving real shop-floor challenges since 1998—helping machinists across U.S. manufacturing facilities send, receive, and manage CNC programs with speed and confidence. Whether you run a small screw machine shop or a multi-machine production floor, our DNC software scales to match your operation, reduce scrap, and keep your machines cutting parts.

Explore our complete lineup of CNC/DNC software solutions designed to streamline program management and maximize shop productivity.
Core CNC/DNC file transfer software for sending, receiving, editing, and managing G-code programs. Reliable RS-232 serial communication with every CNC machine in your shop, starting at $195.
All the power of Machine Link™ with support for six simultaneous communication sessions. Ideal for shops managing multiple CNC machine tools from a single computer without interrupting drip feeds.
Shop-floor automation that lets machinists request CNC files remotely without leaving their machines. Continuously scans for requests and serves the latest engineering-approved file directly to the control.
Enterprise-grade shop-floor automation supporting up to 64 simultaneous CNC communication sessions. Remotely manage an entire production floor from a single computer and eliminate unnecessary floor walks.
Pocket PC DNC software delivering extreme shop-floor mobility. Upload and download CNC programs wirelessly, configure unlimited machine controls, and drip-feed most CNC machines—all from your pocket.
Custom software and hardware solutions for process monitoring, shop-floor automation, PLC integration, vibration analysis, and end-of-line testing. Leveraging NI Partner Network expertise since 2000.
Managing CNC G-code files shouldn't slow your shop down. Controlink Systems LLC delivers software solutions that fit every level of operation—from a single-machine job shop to a multi-machine production facility running 64 simultaneous connections. Our tools keep machinists at their machines, engineers in control of approved files, and your shop floor focused on making quality parts. With over 25 years of real machining expertise behind every product, you get software that simply works.

See how manufacturing facilities across the U.S. use Controlink software to boost productivity and reduce scrap.
We combine deep machining knowledge with powerful software engineering to deliver solutions that work—every shift, every machine, every time.
Developing CNC/DNC solutions since 1998, trusted by U.S. manufacturers from small shops to national labs.
Certified NI Partner since 2000, delivering validated hardware and software solutions for industrial environments.
Software tiers from single-machine setups to 64-machine simultaneous DNC sessions—grow without switching platforms.
Every product is developed with the everyday shop in mind by a team that genuinely understands the machining process.
A passionate team of engineers who know machining inside and out.
Founded in 1998 in Lawrenceburg, Indiana, Controlink Systems LLC was built on a simple belief: software for machinists should be developed by people who understand machining. Over the past 25+ years, the company has grown from a CNC/DNC communications specialist into a comprehensive engineering services firm serving manufacturers across the United States—from precision job shops to national research laboratories like Oak Ridge National Laboratory. As a proud member of the NI Partner Network since 2000, Controlink brings validated hardware and software expertise to every project. Their reputation for reliability earned recognition from The Timken Company in 2000, which highlighted their innovative DNC technology. Today, the company continues its mission of linking systems together and solving complex manufacturing challenges with user-friendly, shop-proven solutions.
CNC Connect refers to the process of linking a computer to CNC machine tool controls via RS-232 serial communication or network connections. Controlink's DNC software manages this link—continuously scanning for file requests, serving the correct G-code program to the machine, and allowing engineers to monitor transfers in real time. The setup is configurable for any CNC control, old or new.
Talk to our engineering team for a free consultation and product recommendation.
Featured in Timken Exchange for innovative DNC software achievement.
Certified NI Partner providing validated software and hardware since 2000.
Trusted provider of CNC/DNC solutions for U.S. manufacturers since 1998.
Tell us about your shop setup and we'll recommend the right DNC software solution. Our team is available Monday through Friday, 9AM–5PM, and ready to help you get more from your machines.
For immediate assistance, feel free to give us a direct call at (800) 838 3479 You can also send us a quick email at support@controlinksystems.com
For immediate assistance, feel free to give us a direct call at (800) 838 3479 You can also send us a quick email at support@controlinksystems.com