Pumps & Motors

Updated April 25, 2023 with solution By Robert J. Sheaf, Founder/CEO of CFC Industrial Training The circuit shown here is used to open and close the cage doors on a zoo enclosure. The staff would start the hydraulic system when they needed to open and close the gates. They then would shut it down when…

Danfoss Power Solutions will showcase its range of hydraulic, fluid conveyance, and electrification solutions at the 2023 International Fluid Power Exposition, March 14-18, in Las Vegas, Nevada. At its booth, S80515, Danfoss will demonstrate how the company is “Powering the future of machine performance.” Danfoss’ new Thorx family of cam lobe motors will make its […]

A hydraulic pump is literally the heartbeat of your hydraulic system. If you’re new to hydraulics, you’d be surprised at how many ways you can push fluid under pressure. The rotating and/or reciprocating of gears, vanes or pistons offer a designer constrained by any performance or budget envelope the options to best suit any application, […]

Bosch Rexroth will exhibit during IFPE and CONEXPO-CON/AGG, March 14-18, 2023 in Las Vegas in booth S80215 in South Hall 3. In their booth, Bosch Rexroth will showcase a wide variety of technologies suited for mobile equipment, including the eLION electrification platform. eLION includes a full range of electric motor-generators, inverters and accessories, as well […]

Technology advancements enable smaller, quieter, and more energy-efficient hydraulic power units that save space and reduce the total cost of ownership. The common perception of conventional hydraulic power units is that they are large, loud, and inefficient. Such claims are valid for facilities that still use power units from the 1960s and 1970s and among…

For decades, fluid handling system components, such as impellers, vanes, pumps, and housings, have been manufactured using a labor-intensive, lost-wax investment casting process that requires 12 separate steps. This challenging, costly, and time-consuming process requires additional steps and tooling to create soluble or ceramic cores that form complex internal ports, passages, channels, and baffles. Now,…

Shuttles are probably the most simple and cheapest option to improve the efficiency of hydraulic off-road machinery. As it promoted these devices at bauma 2022 in Munich last week, Innas highlighted that users could save up to 2,000 liters of fuel in an average off-road machine. Shuttles increase the efficiency of hydrostatic pumps and motors. […]

Danfoss Power Solutions announced the launch of its Thorx family of cam lobe motors. The first product, the CLM 8 S motor, is now available. Designed for construction machinery with chain drives, such as skid steer loaders, the compact motor offers better performance, higher efficiency, and longer lifetime than other cam lobe motors. The Thorx […]

At the recent Danfoss Distributor Meeting in Orlando, Fluid Power World’s VP, Editorial Director, Paul J. Heney, caught up with the company’s President. They discussed the merging in of Eaton’s hydraulics business, the return of beloved fluid power industry names, how the company is changing, and more. FPW: It’s been a bit more than a…

The annual LEAP Awards (Leadership in Engineering Achievement Program) acknowledges innovation and engineering achievements from around the globe. Our expert independent judging panel received numerous submissions this year and selected 44 gold, silver, and bronze winners and honorable mentions across 14 categories. The 2022 Hydraulics category winners are: Gold DGD Fluid Power Cartridge Flow Transmitter…

Contributed by Tracy Jones, Director of CJ Plant Maintenance The challenge with hydraulic pumps is that they are often neglected until something goes wrong. You wouldn’t be blamed for not knowing how often you need to service your hydraulic pump or how often it needs maintenance. However, some common signs indicate when your pump needs […]

By Josh Cosford, Contributing Editor A motor is any device designed to convert one form of energy into rotational mechanical force. For example, an electric motor converts electrical potential into mechanical torque, and a hydraulic motor converts hydraulic energy from pressure and flow into mechanical torque. And an air motor converts compressed air into that […]

In an emergency or for planned maintenance or service, the fast shaft of the gearbox in a wind turbine must be braked safely or kept safe after stopping. For this purpose, a disc brake is positioned on the shaft in medium and large wind turbines. This can be reliably triggered and operated by a hydraulic…

Hawe Hydraulik offers different concepts for mobile machine electrification projects. The latest is the PowerBox, which offers enormous advantages for installation and operation. In addition to the battery packs, it also contains a new motor pump unit (MPU), the power distribution unit (PDU), a charger, and the hydraulics. The concept can be adapted to the specific…

Every type of hydraulic pump has a certain degree of delivery irregularity, causing pressure ripple in a system. Unfortunately, the fluid-borne pressure ripple can travel throughout a circuit and generate unwanted vibration and noise far from the pump. That can lead to problems ranging from excessively loud operation that is annoying to nearby workers to…

Hydraulic pumps are primarily designed to convert incoming prime mover energy into hydraulic energy, manifested as pressure and flow. The term hydrostatic refers to a state of pressure equilibrium, especially in a confined space. All traditional hydraulic applications are hydrostatic, and in most cases, if you shut down the pump, physical loads should hold fast […]

Updated July 4, 2022 with the solution below: I was asked to troubleshoot a system where the customer was complaining about a slow hydraulic motor that drove a thread rolling machine for a “U” bolt they manufacture. The system had a pressure-compensated, load-sense, Rexroth pump with volume adjustment. They did not have any hydraulic drawings…

Omni Powertrain Technologies has a new electrohydraulic pump combination. The unit was developed for low voltage mobile applications and is ideally suited for the needs of hybrid equipment builders facing spatial constraints. The system includes a Flo-Torq gear pump packaged with an axial flux motor and controller from Omni’s Magelec subsidiary. The overall package length […]

Terzo Power Systems has introduced its most powerful product to date, the Hydrapulse F3. Designed to handle the largest electrification applications in the commercial trucking, mining, and off-highway markets, the Hydrapulse Frame Size 3 (F3) offers next level power density with all the proven features and options of the Hydrapulse line. Terzo’s solutions make it […]

In conjunction with SME MinExchange 2022, Bosch Rexroth has made two announcements for its Hägglunds line — a new drive concept and a rebranding of the overall line. Hägglunds new Fusion drive systems bring a new definition of compact to the already space-saving Hägglunds drive concept. An entire hydraulic direct drive system can now be…

Nearly a year ago, Terzo Power Systems officially launched its electrohydraulic pump systems designed for on- and off-highway mobile vehicles and industrial applications. Terzo Power Systems developed the world’s first compact and energy efficient smart hydraulic solutions for the electrification of fluid power. Their flagship product, the Hydrapulse, is a complete electrohydraulic system that is […]

At MinExpo last fall, Parker Hannifin’s Hydraulic Pump and Power Systems Division released a complete electrification system spotlighting its new GVM310 global vehicle motor and P1M series mobile open-circuit, medium-pressure axial-piston pump. The GVM310 is a powerful, rugged, electric vehicle motor for both heavy on and off-road vehicles, engineered for traction and electrohydraulic pumps (EHP) […]

The Danfoss DDP096 Digital Displacement pump has been named a winner of Agritechnica’s prestigious Systems & Components Trophy 2022. Presented by DLG, the German Agricultural Society, the award recognizes the inventive spirit of industry suppliers and their importance to agricultural technology. The Digital Displacement pump triumphed as one of three winners from among 20 nominees. […]

Machine manufacturers are increasingly looking for ways to improve the efficiency of fluid power systems, both for sustainability reasons and for the bottom line. At last month’s NFPA/FPIC quarterly meeting, Neal Gigliotti, Manager, Applications at Bosch Rexroth Corp. discussed some environmentally friendly techniques for advancing industrial machinery designs, and why they’re important. “Making hydraulics eco-friendly…