Power Solutions International, Inc. (“PSI” or “the Company”) is proud to announce a new cooperative agreement with HD Hyundai Infracore (HDI), a global leader in engine manufacturing and infrastructure support. This collaboration adds a robust line of cutting-edge Tier 4 and Euro Stage V diesel engines to PSI’s existing range of industrial spark-ignited power solutions.

Under the terms of the agreement, Power Solutions International will market, develop, and distribute HDI’s industrial EPA Tier 4 and Euro Stage V diesel engine offerings throughout North America, as well as provide customers with integration services and turn-key power units. The agreement also includes the gasification development of certain HDI diesel engines, offering customers a “common block” solution for multiple fuel types, including LPG, Diesel, Gasoline, and Natural Gas.

This partnership allows PSI to broaden its ability to deliver a wider range of durable, high-performance engine solutions to industrial OEMs. PSI’s industrial engine solutions offer maximum power, performance, efficiency and uptime needed for rugged applications.

“With the addition of HD Hyundai Infracore’s innovative diesel engine portfolio, we can offer our customers a more complete range of high-performance industrial engine options,” said Brandon Higgins, Vice President of Industrial Sales, Power Solutions International. “This partnership strengthens our ability to meet diverse application needs with both spark-ignited and diesel solutions.”

“This unified solution and the strategic partnership will bring a significant advantage to penetrate the large OEMs, really to all end users.” said Sungho Jeon, Vice President of Engine Sales, HD Hyundai Infracore.

PSI executives were on hand Feb. 24 to ring the bell at the opening of the day’s trading at the NASDAQ exchange in New York City. Our company also featured on NASDAQ’s tower digital billboard in Times Square.

PSI stock has been listed on the iconic stock exchange since late 2024 under the ticker symbol “PSIX.”

Several PSI products were featured during TCI Expo 2024 last month in Baltimore, Md.

OEMs spotlighting PSI engines in their products included Dyna Products, who featured a woodchopper powered by our 8.8-liter industrial engine, the most powerful off-road spark ignited engine in the market available today.

PSI’s patented 30kw lithium-ion all electric power unit was displayed by Morbark, who also featured its BVR 10 Model woodchipper, powered by PSI’s 2.4-liter gasoline engine.

Bandit showcased two woodchippers powered by PSI engines: its new 12XC woodchipper, which features the PSI 2.4-liter gasoline industrial engine; and the 12XP, which uses PSI’s 4.3-liter gasoline engine.

Hosted by the Tree Care Industry Association, the TCI Show features more than 250+ exhibitors.

PSI celebrated National Manufacturing Week, Oct. 4 through 11, in style thanks to our Human Resources team. The HR team organized cookouts in Wood Dale and Darien, Wis., gave out candy apples in each building, and distributed pink t-shirts to employees to commemorate Breast Cancer Awareness Month.

PSI staff were present July 25 at the Port Newark Container Terminal in New Jersey when Tucker Perkins, president and CEO of the Propane Education and Research Council (PERC), presented the port with its Energy for Everyone Hero Award. The award recognizes the port’s adoption of terminal tractors manufactured by MAFI Transport-Systeme GmbH and powered by PSI’s 8.8-liter propane engine. MAFI terminal tractors support of the port’s rail operation.

Certified by both the U.S. Environmental Protection Agency (EPA) and the California Air Resources Board (CARB) for use in mobile, off-road applications, PSI’s 8.8-liter engine is one of the cleanest propane engines available on the market and delivers 245.4 hp and 515.5 lb-ft of torque.

The event highlighted the collaborative efforts of the port, MAFI and PSI to promote the safe, efficient use of propane gas through education and technological advancements. MAFI specializes in the development and production of heavy-duty vehicles for transporting containers, semi-trailers, cargo/roll trailers and special container chassis in ports and industry.

PSI continues to reach milestones in its effort to offer customers an alternative to traditional gas-powered engines. Our engineering team recently successfully demonstrated PSI’s new Lithium-Ion Power Unit – which features an electric motor powered by a Lithium-Ion battery – in a woodchipper.

PSI’s New Energy and engineering teams began work on the unit in 2022, with a concept unit displayed in fall 2023 during the Tree Care Industry (TCI) Expo. The unit generated a great deal of interest from industrial equipment OEMs, particularly within the woodchipping industry. After the concept unit returned to PSI, Aleks Koledov of the engineering team along with Weichai engineers worked with the testing team in Burr Ridge to dyno test the machine. Testing included verifying that the motor produced the power and torque expected as well as understanding the current draw from the batteries under a simulated chipper load profile.

While the dyno testing was under way, the PSI engineering team put together designs and drawings for more than 60 new parts so the design could be eventually be reproduced and built on PSI assembly lines.

Expert Engineering

Aleks Koledov integrated the controller with a 4.3-inch color display to control the motor and display electrical parameters from all electrical components including the motor, battery management system, control unit and on-board battery charger. Additionally, he incorporated woodchipper feed roller control logic safeties to the woodchipper

application and integrated thermocouple modules to the existing telematics system for temperature data logging. Koledov worked with the Weichai team to go through a sequence of operation for individual electrical components and verified the electrical power unit operates as designed. Once engineers were confident that the unit was ready to operate the chipper, the drive belts and other mechanical features had to be attached.

Connecting parts including a primary drive shaft were ordered, but the supplier was more than a month late with delivery. With a demonstration scheduled in a short time frame, engineering team members Nick Nokovic, Steven Gnoffo and Kevin Kendzierski determined they could modify the original shaft by cutting and welding to produce a workable drive shaft for the demo. Completing the rework project took several days of careful machining work in the machine shop, since any mistake would ruin the only existing prototype part.

Once the shaft was completed, the next step was to install the original belt guard. Design Engineering Technician Jimmy Schmidt worked with Gnoffo to modify the existing belt guard by welding in a section and adding additional attachment points to secure it on the machine.

Koledov and the Weichai Team then started the machine and tested it in an unloaded condition. After some slight adjustments the machine was ready for an initial test at 1465. Kendzierski brought in logs and tree trimmings, and the team also loaded wood debris found near the 1465 facility.

Demo Runs

After the successful initial test, Jason Lundin arranged for a demo at Streamwood Park District. Streamwood kept two of their crews at their facility to perform the demo, and the woodchipper worked well. The Park District as well as both the PSI and Weichai Teams were pleased with the results.

The next day, Dave Goodwin arranged for a demo at Steve Piper and Sons Tree Service. The PSI Team put on their personal protective equipment and demonstrated the

woodchipper on a hot Thursday afternoon in 95 degree heat. The demonstration was again successful and impressed another potential customer. Both the PSI and Weichai Teams have worked diligently to make the project a success. Wood chipping is a severe duty cycle application, and the machine withstood the vibrations and very large logs.

The power unit has many other high volume potential applications beyond chippers and is a new concept for industrial machines that is in the process of being Patented by PSI. Additional prototype units are planned to be assembled in late July and August. The PSI team working on the project includes Aleks Koledov, Curtis Boyd, Dave Goodwin, Robert Shailes, Jason Lundin, Jimmy Schmidt, Kevin Kendzierski, Nick Nokovic, Carly Bartholomew, Tien Cao, John Sager, Sebastian Newman, James Abrahamson and Steven Gnoffo, supported by the Weichai Team consisting of Billy Lin, Hamming Tao, Ping Xia and Qiang Fu.

Hats off to a job well done by all involved!

PSI representatives attended the Advanced Clean Transportation Expo in Las Vegas May 20 to 23. Several of the vehicle manufacturers attending the show displayed PSI engines in their products including MAFI Terminal Tractors, Mack Trucks, Momentum,  Capacity of Texas, Mullen Power Up, Pioneer, Taylor Machine Works and Enviro Charge. Capacity also featured PSI’s 8.8L Propane engine.

The show spotlights efforts in the transportation sector to reduce emissions while driving economic sustainability.

PSI officially opened its new facility at 2401 State Line Road in Beloit during a ribbon-cutting ceremony April 22. The 100,000-square-foot facility, which specializes in complete, custom-designed enclosures for PSI’s power generation product line, allows us  to double our capacity.