Laser Creates Single-Piece Part Flow

Percival Scientific changes approach with implementation of new Mazak fiber laser-cutting machine

Percival Scientific of Perry, Iowa does more than you think. Being a leader in the manufacture of environmental growth chambers, or incubators, means they are changing the world of agriculture.

These controlled chambers can be as small-sized as a mini-fridge or as large as commercial size, which are walk-in systems that can grow corn. Percival partners with companies like AgBiome to isolate, analyze and test microbes for agriculture in hope to discover and innovate biological products for crop protection. They also work with companies like Indigo Agriculture to provide them a plant culture chamber for researchers to grow plants under highly controlled conditions to improve food production for the world through introducing beneficial microbiome. This incredible research is no one size fits all tasks.

Of course, it wasn’t always this way for Percival. The company originally began making butcher knives and then butcher cabinets and refrigerated meat lockers in the early 1900’s. But in the 1960s Iowa State researches reached out to them for a refrigeration cabinet, launching Percival into the research market and haven’t looked back since.

With Percival doing incredible work for Iowa State University and Cornell University, their shear and two turret punch presses were a bit old-school for their highly advanced products. Percival does everything made to order which has made them focus on single-unit part flow.

Operators would shear each sheet to size, place it on a cart and wheel it to the turret press which cut all the material grades and thicknesses for the order. Once complete, the parts were put back on the cart and sent to the press brake or bidirectional folder.

With a long term view in mind, Jesse Smith, Director of Manufacturing at Pervical, knew the cutting department wouldn’t be able to keep up with space and labor constraints.

In 2016, Percival purchased their first laser which was a 2kW OPTIPLEX NEXUS FIBER. Implementing dynamic nesting and a low batch process style to single-piece part flow, the new software and laser weren’t the only changes to their fabricating.

Many parts look alike on the shop floor at Percival. With the laser’s high productivity, parts could get lost or incorrectly sorted creating issues downstream. Because of this, Percival implemented etching part numbers on each part. Reading these etched numbers, workers can properly sort and place processed parts onto carts which are then sent to bending. Once they are formed, they are sent to welding, coating and assembly.

Smith goes to explain, “To put this in perspective, prior to the laser, we had nine people in the cutting department, and operators were working 10-hour days and putting a half day in on Saturday just to survive and keep up with the rest of the plant. Now when we’re humming, we have four people and no overtime.”

These employees have been reassigned and retrained to work in other areas. Smith says, “We’ve gained a ton of labor efficiency during a time when qualified labor is incredibly difficult to find”.

Article published in the January issue of The FABRICATOR.

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About Mazak Optonics Corporation

Mazak Optonics Corporation is a major supplier of laser-cutting systems, offering 50 laser models and leading the industry in the implementation of emerging laser technologies. The company’s 50,000 sq. ft. North American Headquarters are located in Elgin, Illinois, and feature a 30,000 sq. ft. laser technology center housing up to 18 machines for demonstrations and training. Mazak Optonics is part of Yamazaki Mazak Corporation (Oguchi, Japan), the global leader for the manufacture of machine tools and systems for the precision machining of metal parts, including CNC turning centers, horizontal and vertical machining centers, Multi-Tasking machining centers, turnkey cells and software solutions. The North American Headquarters for Yamazaki Mazak are located in Florence, Kentucky. For more information on Mazak Optonics’ products and solutions, visit, email or call 847.252.4500.