Kadant AES has been involved in the paper industry for many years, but now is marketing a new, energy-saving device for hydraulic machinery that can help injection molders.
Its proprietary motor-control, fluid-power system was fine-tuned under a three-year state program with the New York Energy Research and Development Authority, according to John A. Neun, business manager at Kadant AES. The Queensbury, N.Y.-based firm is a division of publicly held Kadant Inc.
The system replaces traditional hydraulic systems for injection presses with a setup that includes a fixed, positive-displacement pump to generate a pressurized oil flow, but only at the volume required by the process.
The pump is designed to deliver maximum pressure from full flow to virtually zero flow.
Neun noted that the technology is covered by two patents.
``Our company has been in business for 50 years and its core is in paper machines,'' he said in an interview at the Eastec Advanced Productivity Exposition, held May 20-22 in West Springfield.
He said its first application was to lower the energy use of hydraulics pumping water to clean machines used in paper production.
Neun said the system was installed in an undisclosed injection molding plant a year ago as a pilot program and now is being marketed to other plastic companies.
The key to energy savings is that no energy is used during hold times and no energy is needed to cool hydraulic oil.
Kadant-AES has 110 employees at its plant in Queensbury.