Tech Flow Automation is the No.1 Top Siemens PLC & HMI Dealers in Chennai offering best prices for PLC, HMI, Inverter & VFD, etc. Call Us +91 74188 41824 When it comes to industrial automation, Siemens PLCs (Programmable Logic Controllers) and HMIs (Human Machine Interfaces) are essential components that ensure efficient, reliable, and streamlined operations. If you are searching for a Siemens PLC & HMI dealer in Chennai, we are your trusted partner for providing high-quality products and exceptional service. With years of experience in the field of industrial automation, we cater to a wide range of industries, helping them achieve operational excellence through cutting-edge technology.