Electric PTO Systems for Real World Work
Deliver power for hydraulic applications, ancillary drives and job site applications —powered by Turntide axial flux motors and power electronics designed to work together, so end users can use your truck’s auxiliary equipment on an electric vehicle exactly as they would on a vehicle powered by an internal combustion engine without idling.
50/100/150 kW scalable ePTO architecture
Compact packaging for faster OEM integration
High-voltage platform compatibility of 200 to 850 VDC
ePTO is the fastest path to over 90% peak system efficiency and a lower total cost of ownership. Turntide is the platform built to deploy it quickly.
Electrification Is Not a Single Path
ePTO Is Where ROI Shows Up First
Across commercial vehicles and off highway equipment, work functions don’t stop just because traction is electrified. Hydraulics, PTO units, auxiliary drives, and onboard power demands are often the real bottleneck—and a prime opportunity for electrification that pays back quickly.
Instant Response
Unlike engine-driven PTOs, which must idle up, an ePTO provides full torque at 0 rpm—delivering immediate hydraulic power on demand.
Decoupled Performance
Engine speed no longer dictates hydraulic performance, allowing optimal pump speed and flow regardless of drivetrain state.
Less Maintenance
Eliminating engine idle hours also decreases wear and maintenance, giving a rapid ROI on electrifying PTO functions.
Application Breadth
PTO relevance spans industrial freight and heavy-duty work cycles (including construction and compressor type work).
Quiet Operation
Improving working conditions with low noise, allowing nighttime or urban work.
Turntide ePTO for HEV Drivetrain
Turntide ePTO for BEV Drivetrain
Axial Flux + Power Electronics:
Engineered To Win Together
ePTO success fundamentally relies on controls and conversion: precise torque and speed regulation, thermal robustness, and fault handling under transient loads. That’s why Turntide’s advantage is pairing axial flux motors with power electronics as an integrated system—built to perform across frequent load changes and real work cycles.
50 kW ePTO
100 kW ePTO
150 kW ePTO
One ePTO Platform. Multiple Work Functions.
Turntide ePTO architectures combine a torque dense axial flux motor with a high voltage inverter/controller and application software. This enables variable speed hydraulics, auxiliary drives, and PTO loads with a modular mechanical interface approach.
Turntide Enables:
Pre-validated and optimized axial motor and inverter system – engineered together for plug-and-play integration.
High efficiency across broad speeds and loads with defined derating strategies to protect durability.
Consistent performance through load transients (hydraulic spikes, start/stop, and multi circuit demand).
Modular scaling across power ratings using defined variants and repeatable interfaces.
Integration & Durability Proof Points
Example includes liquid cooling via 10-liter/minute, 50:50, water-ethylene-glycol vehicle coolant loop and thermal derating based on the semiconductor and e machine temperature.
Designed to meet rigorous automotive standards (e.g. functional safety, EMI/EMC, and cybersecurity requirements), ensuring reliability and safe operation in the field.
ePTO Architectures in Practice
Architecture A
Direct Drive Hydraulic ePTO (Variable Speed, Variable Flow)
In a direct coupled configuration, the motor shaft drives the pump shaft—letting OEMs command the flow and pressure on demand via motor speed and torque control. This is especially valuable for proportional load sensing systems , because precise speed control allows holding pressure at stall and smooth proportional control.
What this unlocks:
- Hold at zero speed (pressure sustained at standstill) as a defined operating point in duty cycles
- Peak torque for lift/start events without engine rpm dependency
- Power on demand
Architecture B
High-Peak Stationary ePTO (Intermittent Duty)
For applications that require stationary, high-demand operation, the ePTO can handle high peaks by design, maintaining thermal limits via control rather than a physical clutch.
Example duty cycle derivations include defined “rated” and “peak” phases designed around hydraulic requirements.
Architecture C
Multi Interface Mechanical Outputs Designed for OEM Flexibility
A practical ePTO platform needs mechanical options. Example interface configurations include direct mount pump, ISO output spline, and DIN flange output provisions, covering the standard PTO mounting requirements.
Learn From Experts
August 6th, 2025
Delivering Cost-Effective, Low-Power for ePTOs with Air-Cooled Inverter Technology
Air-cooled, high-voltage inverter technology delivers efficient, cost-effective power for electric power take-off (ePTO) systems, eliminating the need for water cooling.
July 3rd, 2025
Axial Flux Motor Helps Generator Manufacturer Improve Off-Grid Charging
The motor operates as a PMG to provide grid-independent power.
June 25th, 2026
Webinar: Hybrid Architectures for Commercial Vehicles
How axial flux motors are shifting these systems and providing more range, smoother operation, and decreased cost per mile.