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In Person interview: Krish Nathan of SDI Element Logic

In our continuing series of discussions with top supply-chain company executives, Krish Nathan talks about the criteria for selecting an automated system and the benefits of goods-to-person technologies.

Krish Nathan of SDI Element Logic

Krish Nathan of SDI Element Logic

Krish Nathan is the Americas CEO for SDI Element Logic, a provider of turnkey automation solutions and sortation systems. Nathan joined SDI Industries in 2000 and honed his project management and engineering expertise in developing and delivering complex material handling solutions. In 2014, he was appointed CEO, and in 2022, he led the search for a strategic partner that could expand SDI’s capabilities. This culminated in the acquisition of SDI by Element Logic, with SDI becoming the Americas branch of the company.

A native of the U.K., Nathan received his bachelor’s degree in manufacturing engineering from Coventry University and has studied executive leadership at Cranfield University.


Q: How would you describe the current state of the supply chain industry?

A: We see the supply chain industry as very dynamic and exciting, both from a growth perspective and from an innovation perspective. The pandemic hangover is still impacting decisions to nearshore, and that has resulted in a spike in business for us in both the USA and Mexico. Adding new technology to our portfolio has been a significant contributor to our continued expansion.

Q: Distributors were making huge tech investments during the pandemic simply to keep up with soaring consumer demand. How have things changed since then?

A: The consumer demand for e-commerce certainly appears to have cooled since the pandemic high, but our clients continue to see steady growth. Growth, combined with low unemployment and high labor costs, continues to make automation a good investment for many companies.

Q: Robotics are still in high demand for material handling applications. What are some of the benefits of these systems?

A: As an organization, we are investing heavily in software that will allow Element Logic to offer solutions for robotic picking that are hardware-agnostic. We have had success deploying unit picking for order fulfillment solutions and unit placing of items onto tray-based sorters.

From a benefit point of view, we’ve seen the consistency of a given operation improve. For example, the placement accuracy of a product onto a tray is far higher from a robotic arm than from a person. In order fulfillment applications, two of the biggest benefits are reliability and hours of operation. The robots don't call in sick, and they are happy to work 22 hours a day!

Q: SDI Element Logic offers a wide range of automated solutions, including automated storage and sortation equipment. What criteria should distributors use to determine what type of system is right for them?

A: There are a significant number of factors to consider when thinking about automation. In my experience, automation pays for itself in three key ways: It saves space, it increases the efficiency of labor, and it improves accuracy. So evaluating which of these will be [most] beneficial and quantifying the associated savings will lead to a “right sized” investment in technology.

Another important factor to consider is product mix. With a small SKU (stock-keeping unit) base, often automation doesn’t make sense. And with a huge SKU base, there will be products that don’t lend themselves to automation.

With any significant investment, you need to partner with an organization that has deep experience with the technologies that are being considered and … in-depth knowledge of the process that is being automated.

Q: How can a goods-to-person system reduce the amount of labor needed to fill orders?

A: In most order picking operations, there is a considerable amount of walking between pick faces to find the SKUs associated with a given order or set of orders. Goods-to-person eliminates the walking and allows the operator to just pick. I have seen studies that [show] that 75% of the time [required] to assemble an order in a manual picking environment is walking or “non-picking” time. So eliminating walking will reduce the amount of labor needed.

The goods-to-person approach also fits perfectly with robotic picking, so even the actual picking aspect of order assembly can be automated in some instances. For these reasons, [automation offers] a significant opportunity to reduce the labor needed to fulfill a customer order.

Q: If you could pick one thing a company should do to improve its distribution center operations, what would it be?

A: Evaluate. Evaluate the opportunities for improving by considering automation. In my experience, the challenge most companies have is recognizing that automation is an alternative. The barrier to entry is far lower than most people think!

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