Cross Company Electric Power Takeoff Unit
Electric over Hydraulic 48-volt ePTO Solutions
Cross Mobile Systems Integration (Cross MSI) would like to introduce our standard off the shelf products of high efficiency, permanent magnet AC (PMAC) 48-volt motors coupled with ultra-quiet helical gear pumps. Based on our own electrification application experience, we are offering 9 different packaged pump/motor solutions that cover the vast majority of low voltage pressure and flow use cases.
Benefits of an ePTO
At Cross, we offer a range of top-quality mobile machine electrification parts and services. Paired with the expertise our OEM and other equipment manufacturer partners need to succeed, our team can help determine the best components for your project. Take a look at some of our highlighted benefits of utilizing an electric PTO.
Improved efficiency
Replacing an existing internal combustion engine prime mover with a PMAC motor can increase efficiency from roughly 35% to 90% or more. This decreases your overall fuel costs, reduces heat generation, and by maximizing your motor efficiency, you extend battery life.
Improved machine control
By utilizing a PMAC motor, you have the ability to control your hydraulic system utilizing motor speed and torque. This can be changed almost instantaneously based upon hydraulic function demand.
Safety
By utilizing a quiet helical gear pump and an electric motor, you dramatically reduce the noise levels on and around your machine. This allows for easier communications between machine operators and bystanders.
Reduced Maintenance
Totally eliminates the need for the servicing of a combustion engine, and replaces this with a low to no maintenance electric motor.
Use of existing hydraulic system/ease of moving to electrification
As a first step towards complete machine electrification, this can perhaps be a great first step by allowing the use of the existing hydraulic system less pump. This will give you and your customers experience in working with electrification systems without the expense of a completely redesigned machine.
ePTO Specs
| Pump Displacement | 4.2cc/rev | ||
| Motor Speed | Min | Rated | Max |
| RPM | 1000 | 2750 | 4000 |
| Torque Nm - (peak/cont.) | 16.9/15.6 | 16.9/15.6 | 16.9/15.6 |
| Power kW - (peak/cont.) | 2.0/1.9 | 5.1/4.7 | 7.4/6.9 |
| Pressure (PSI) - (peak/cont.) | 3698/3394 | 3698/3394 | 3698/3394 |
| Flow (GPM) | 1.10 | 2.90 | 4.40 |
| Motor Efficiency | 87.7 | 94.2 | 95.3 |
| Pump Displacement | 6.4 cc/rev | ||
| Flow (GPM) | 1.70 | 4.50 | 6.70 |
| Power kW - (peak/cont.) | 3.1/2.8 | 7.8/7.1 | 11.4/10.5 |
| Torque Nm - (peak/cont.) | 25.9/23.8 | 25.9/23.8 | 25.9/23.8 |
| Motor Efficiency | 87.7 | 94.2 | 95.3 |
| RPM | 1000 | 2750 | 4000 |
| Pressure (PSI) - (peak/cont.) | 3698/3398 | 3698/3398 | 3698/3398 |
| Motor Speed | Min | Rated | Max |
| Pump Displacement | 8.3 cc/rev | ||
| Motor Speed | Min | Rated | Max |
| RPM | 1000 | 2750 | 4000 |
| Torque Nm - (peak/cont.) | 31.4/27.6 | 31.4/27.5 | 31.4/26.5 |
| Power kW - (peak/cont.) | 4.8/3.3 | 10.5/8.3 | 14.4/11.6 |
| Pressure (PSI) - (peak/cont.) | 3452/3031 | 3452/3021 | 3452/2910 |
| Flow (GPM) | 2.20 | 5.80 | 8.60 |
| Motor Efficiency (peak/cont.) | 68.4/87.7 | 84.3/94.2 | 91.2/95.3 |
| Pump Displacement | 10.1 cc/rev | ||
| Motor Speed | Min | Rated | Max |
| RPM | 1000 | 2750 | 3571 |
| Torque Nm - (peak/cont.) | 48.2/40.1 | 48.2/31.5 | 48.2/24.0 |
| Power kW - (peak/cont.) | 5.9/4.8 | 15.8/9.6 | 23.5/10.7 |
| Pressure (PSI) - (peak/cont.) | 4351/3619 | 4351/2844 | 4351/2162 |
| Flow (GPM) | 2.60 | 7.10 | 10.50 |
| Motor Efficiency (peak/cont.) | 86/87 | 86/93 | 86/94 |
| Pump Displacement | 12.6 cc/rev | ||
| Motor Speed | Min | Rated | Max |
| RPM | 1000 | 2750 | 3571 |
| Torque Nm - (peak/cont.) | 58.2/40.1 | 58.2/31.5 | 49.4/24.0 |
| Power kW - (peak/cont.) | 7.3/4.8 | 18.1/9.6 | 22.7/10.7 |
| Pressure (PSI) - (peak/cont.) | 4206/2901 | 4206/2280 | 3574/1733 |
| Flow (GPM) | 3.30 | 8.80 | 13.10 |
| Motor Efficiency (peak/cont.) | 84/87 | 91/93 | 91/94 |
| Pump Displacement | 15.2 cc/rev | ||
| Motor Speed | Min | Rated | Max |
| RPM | 1000 | 2750 | 3571 |
| Torque Nm - (peak/cont.) | 65.5/40.1 | 65.5/31.5 | 49.4/24 |
| Power kW - (peak/cont.) | 8.4/4.8 | 21.0/9.6 | 22.7/10.7 |
| Pressure (PSI) - (peak/cont.) | 3916/2405 | 3916/1890 | 2963/1437 |
| Flow (GPM) | 4.00 | 10.70 | 15.80 |
| Motor Efficiency (peak/cont.) | 84/87 | 88/93 | 91/94 |
| Pump Displacement | 17.9 cc/rev | ||
| Speed Mode | Min | Rated | Max |
| Displacement | 17.9 | ||
| RPM | 1000 | 2000 | 3000 |
| Torque (Nm) | 66.3 | 64.1 | 46.3 |
| Power (kW) | 6.9 | 13.4 | 14.6 |
| Flow (GPM) | 4.7 | 9.3 | 14.0 |
| Pressure (PSI) | 3375.5 | 3261.7 | 2359.1 |
| Pump Displacement | 22.1 cc/rev | ||
| Motor Speed | Min | Rated | Max |
| RPM | 1000 | 2000 | 3500 |
| Torque Nm - (peak/cont.) | 95/66.3 | 95/64.1 | 66.5/38.3 |
| Power kW - (peak/cont.) | 11.6/7.8 | 22.9/14.5 | 26.8/15.2 |
| Pressure (PSI) - (peak/cont.) | 3771/2734 | 3771/2642 | 2743/1580 |
| Flow (GPM) | 5.70 | 11.50 | 20.10 |
| Motor Efficiency (peak/cont.) | 86/91 | 87/95 | 91/95 |
| Pump Displacement | 25cc | ||
| Motor Speed | Min | Rated | Max |
| RPM | 1000 | 2000 | 3000 |
| Torque Nm - (peak/cont.) | 88.4/66.3 | 88.4/64.1 | 66.5/38.3 |
| Power kW - (peak/cont.) | 10.3/7.8 | 20.3/14.5 | 26.8/15.2 |
| Pressure (PSI) - (peak/cont.) | 3191/2398 | 3191/2317 | 2406/1386 |
| Flow (GPM) | 6.60 | 13.10 | 22.90 |
| Motor Efficiency (peak/cont.) | 90/91 | 91/95 | 91/95 |
Motor Inverters
Why is an inverter needed with our ePTO solution? Battery voltage will be DC, and our high efficiency PMAC motors are AC. The motor inverter converts the battery DC voltage to AC, and in turn can be used to precisely control motor speed and torque. Cross supplied inverters will be tuned and characterized based on your motor/pump selection.
Our 48V motor inverters come in 3 standard sizes based on their continuous and peak amperage ratings. These units incorporate a flat metal air cooled heat sink for system heat dissipation, 35 pin signal connector, and internally threaded power terminals.
Our offering includes:
- M113003-P – Lower power inverter with loaded epf file
- M113004-P – Medium power inverter with loaded epf file
- M113005-P – High power inverter with loaded epf file
Components For Every Part of Your Electrification Project
Cross Mobile Systems Integration works with off-highway OEMs to improve their machine design and performance. Whether it’s hydraulics, electronics, controls or a full overhaul from ICE to electrified, Cross’s team of engineers works as an extension of our customer’s engineering team. We take the time to understand the unique requirements of each piece of mobile equipment and then design, prototype and build an optimized system for the machine.
Power Distrubition Unit (PDU)
Power delivery component for off-highway electric vehicles that manages the distribution of power from the energy source, such as a battery or fuel cell, to various critical subsystem loads such as traction inverters and on-board charging devices.
AC Motors
Converts electrical energy into mechanical power, driving the machine with efficient, high torque, AC permanent magnet motors, suited for demanding applications. It enables smooth operation, reducing wear and tear while optimizing energy use in mobile equipment.
Inverters
Regulates the conversion of DC power from the battery into AC power for the motor, ensuring smooth acceleration and precise control. Advanced inverters improve energy efficiency while supporting regenerative braking, feeding power back into the battery system.
Low Voltage DC/DC Converters
Converts high-voltage battery power to low-voltage energy for auxiliary components, maintaining efficient power distribution. This ensures stable operation for critical low-voltage systems, such as sensors, control modules, and safety features, without compromising overall power availability.
Low Voltage Bus
Distributes low-voltage power to various electrical components, ensuring stable and reliable operation across the entire system. It minimizes electrical losses and supports easy integration of additional devices, enhancing overall machine efficiency.
Machine Controller
Acts as the brain of the system, coordinating components to optimize machine operation, efficiency, and safety. It integrates sensors and communication protocols, providing real-time diagnostics and data logging for performance tracking.
Onboard Chargers
Charges the battery system using external power sources, enabling convenient recharging without removing the battery. Onboard chargers ensure fast, efficient charging, supporting various voltage levels for flexibility in different environments.
Batteries and Battery Management Systems
Stores electrical energy to power the machine, offering extended runtime and performance tailored to specific application needs. Modern battery systems are built with safety, thermal management, and scalability in mind, providing reliability in rugged environments.
Motor Driven Gearbox
Cross Company's motor-driven gearboxes offer precise and efficient power transmission for mobile and industrial applications. These gearboxes are designed to work seamlessly with electric motors, providing optimized torque and speed control for demanding tasks.
Ready To Electrify?
Our experts can work with your team to develop a complete mobile electrification solution to ensure that you have the right equipment, working together, to improve your machine performance and productivity.
Industrial Equipment Electrification Ecosystem
PDUs
Voltage Capabilities and Ranges: Optimized for 48VDC architectures, but 12V, 24V, 36V, 72V, 96V, and more available
Connector and Contactor Rating: Standard components are rated for 300A continuous use
Switched Fuse Outputs: 48V and 12V
IP-Protected Housing: IP65-rated for protection from dust and water ingress
Dedicated Bulkhead Connectors: OBC, DC/DC, Inverter, and Signal Wiring
Batteries and Battery Systems
Chemistry: Lithium NMC
Pack voltage: (Nom/Max) 51.7V / 57.4V
Storage capacity: 3.2kWh individual pack, up to 10 packs in parallel for 32kWh
BMS: Integrated
Heater: Integrated for charging down to -35C
Cycle life: 2000 @ 80% DoD
Hot swap capable: Allows for the changing of packs in the field with self balancing
On-Board Chargers
We are a national integrator for Delta Q on-board battery chargers. We inventory several different models based on charge time required (power output), and other features such as an integrated DC to DC converter, CAN communications, and if an EVSE connection is needed.
In addition, we will provide these chargers with an integrated charge algorithm before shipping that is suitable for our Cross supplied Inventus battery packs or other third party battery packs.
Why Cross Company?
A key feature we’re able to offer at Cross Company is an opportunity to bring your machine in for prototype development. With our Mobile Technology Center (pictured), we’re able to accommodate machines of almost any size. With a large staging lot, we can see the machine in action, making sure everything works as intended. We have been providing engineered solutions to our OEM partners since 2004.
This includes hydraulic system solutions, CAN based control solutions, and more recently, vehicle electrification design and integration. Whether you’re looking to integrate electric solutions into your existing architecture or develop a prototype for a unique job function, Cross can help.
A key part to any electrification project is the power required to run a machine, and managing that power. If you are interested in learning more about how Cross can help make your equipment operate more efficiently, contact a team member today!
