Integrated
Motor Drives for

Electric Aircraft
Electric Boats
E-motorsports
Military & Defense
Power generation
aerospace

Unrivaled power density – 12 kW/kg continuous. Scalable core technology from 30 kW to 30 MW.

JOIN THE REVOLUTION.
Patent Pending

200kW in a 18kg Package

The HPDM-250 is an ultra-high power density integrated motor drive for high performance and mass sensitive applications. It combines the electric motor, inverter, and gearbox into a single unit and is the culmination of H3X innovation in multiple areas including:

HPDM-250 Target Specifications

The HPDM-250 is optimized entirely for power density and efficiency. It features the highest level of integration on the market, made possible by our holistic design methodologies rooted in first principles and multidisciplinary expertise in power electronics and electric machines.

These specifications are estimates based on electromagnetic, thermal, and structural simulations. Data from dynamometer will be available early 2023.

Peak Torque
120 Nm
Peak Power
250 kW
Peak Duration
30 seconds
Speed Range
0 - 20,000 RPM
Continuous Torque
95 Nm
Continuous Power
200 kW
Peak Motor Efficiency
97.9%
Peak Inverter Efficiency
99.0%
Peak Combined Efficiency
96.9%
DC Bus Voltage
Up to 900 V
Mass
13.0 kg
Volume
7.77 L

These specifications are estimates based on electromagnetic, thermal, and structural simulations. H3X has tested up to 180 kW.

Peak Torque
800 Nm
Peak Power
250 kW
Peak Duration
30 seconds
Speed Range
0 - 2,985 RPM
Continuous Torque
640 Nm
Continuous Power
200 kW
Peak Motor + Gearbox Efficiency
96.4%
Peak Inverter Efficiency
99.0%
Peak Combined Efficiency
95.4%
DC Bus Voltage
Up to 900 V
Mass
16.6 kg
Volume
8.77 L

Motor Torque vs. Speed

 (w/ 4:1 Gearbox)

 (w/ 6.7:1 Gearbox)

Patent Pending

Revolutionizing Winding Technology

H3X has developed a novel stator winding and high voltage insulation system that offers a >40% improvement over conventional windings in terms of maximum continuous current density.

High fill factor (>70%)

Thermally conductive (> 5 W/m-K bulk)

Partial discharge resistant (1800V)

Scalable to higher power MW-class machines

High temperature (265 °C)

Patent Pending

33kW in a 4kg Package

The HPDM-30 is a high power density integrated motor drive with a continuous power rating of 33 kW and a mass of only 4.1 kg. The motor utilizes the same core technology as the HPDM-250, combined with a new discrete SiC FET inverter running an in-house developed self-sensing rotor position algorithm.

The HPDM-30 has a peak specific power of > 10 kW/kg and can be used as a motor or generator. The unit can also be stacked axially to form 66kW and 99kW machines.

Specifications:
Peak Torque
19.6 Nm
Peak Power
41 kW
Speed Range
0 – 20,000 RPM
Continuous Torque
15.8 Nm
Continuous Power
33 kW
Peak Specific Power
10 kW/kg
Peak Power Density
19.8 kW/L
Continuous Specific Power
8 kW/kg
Continuous Power Density
15.9 kW/L
Diameter
130 mm
Length
156 mm
Mass
4.1 kg
Volume
2.07 L

These specifications are based on HPDM-30 dynamometer test data.

Patent Pending

1.5MW in a 130kg Package

8 independent HVDC connectors for fault tolerant independent power delivery chains

8 Independent coolant ports for fault tolerant thermal management.

8 Independent Inverter-Stator sectors for unparalleled fault tolerance.

Hollow shaft for variable pitch mechanism and motor stacking - up to 8 HPDM-1500s (12MW)

The EPU is hermetically sealed front to back to reduce risk of FOD and debris

The HPDM-1500 is an ultra-high power density multisector IMD for primary propulsor applications on large electric aircraft and marine vessels. Based on the same core technology as the H3X HPDM-250, this EPU has a continuous specific power of >10 kW/kg and features the highest level of fault tolerance and reliability with its 8 independent drive sectors.

Stackable up to 9 MW

Specifications:
Max Continuous Power
1.5 MW
Max Continuous Torque
5,730 Nm
Mass
130 kg
Max Speed
2500 RPM
Efficiency at Cruise (typical)
96%
Sector Voltages
600 – 900 VDC
DC Input Voltage
Up to 3.6kV
Max Operating Altitude
45,000 ft
Diameter
2 ft
Length
1 ft
# of Independent Sectors
8
Communication Protocols
CAN (ARINC-825), RS-485
Time Between Overhaul
10,000 hours
Certification Intent
Part 33, DO160, DO178, ARP4754

These specifications are estimates extrapolated from our lower power product testing and simulation.

Specifications:
Max Continuous Power
3.0 MW
Max Continuous Torque
11,460 Nm
Mass
260 kg
Max Speed
2500 RPM
Efficiency at Cruise (typical)
96%
Sector Voltages
600 – 900 VDC
DC Input Voltage
Up to 3.6kV
Max Operating Altitude
45,000 ft
Diameter
2 ft
Length
2 ft
# of Independent Sectors
24
Communication Protocols
CAN (ARINC-825), RS-485
Time Between Overhaul
10,000 hours
Certification Intent
Part 33, DO160, DO178, ARP4754

These specifications are estimates extrapolated from our lower power product testing and simulation.

Specifications:
Max Continuous Power
4.5 MW
Max Continuous Torque
17,190 Nm
Mass
390 kg
Max Speed
2500 RPM
Efficiency at Cruise (typical)
96%
Sector Voltages
600 – 900 VDC
DC Input Voltage
Up to 3.6kV
Max Operating Altitude
45,000 ft
Diameter
2 ft
Length
3 ft
# of Independent Sectors
24
Communication Protocols
CAN (ARINC-825), RS-485
Time Between Overhaul
10,000 hours
Certification Intent
Part 33, DO160, DO178, ARP4754

These specifications are estimates extrapolated from our lower power product testing and simulation.

Specifications:
Max Continuous Power
6.0 MW
Max Continuous Torque
22,920 Nm
Mass
520 kg
Max Speed
2500 RPM
Efficiency at Cruise (typical)
96%
Sector Voltages
600 – 900 VDC
DC Input Voltage
Up to 3.6kV
Max Operating Altitude
45,000 ft
Diameter
2 ft
Length
4 ft
# of Independent Sectors
32
Communication Protocols
CAN (ARINC-825), RS-485
Time Between Overhaul
10,000 hours
Certification Intent
Part 33, DO160, DO178, ARP4754

These specifications are estimates extrapolated from our lower power product testing and simulation.

Specifications:
Max Continuous Power
7.5 MW
Max Continuous Torque
28,650 Nm
Mass
650 kg
Max Speed
2500 RPM
Efficiency at Cruise (typical)
96%
Sector Voltages
600 – 900 VDC
DC Input Voltage
Up to 3.6kV
Max Operating Altitude
45,000 ft
Diameter
2 ft
Length
5 ft
# of Independent Sectors
40
Communication Protocols
CAN (ARINC-825), RS-485
Time Between Overhaul
10,000 hours
Certification Intent
Part 33, DO160, DO178, ARP4754

These specifications are estimates extrapolated from our lower power product testing and simulation.

Specifications:
Max Continuous Power
9.0 MW
Max Continuous Torque
34,380 Nm
Mass
780 kg
Max Speed
2500 RPM
Efficiency at Cruise (typical)
96%
Sector Voltages
600 – 900 VDC
DC Input Voltage
Up to 3.6kV
Max Operating Altitude
45,000 ft
Diameter
2 ft
Length
6 ft
# of Independent Sectors
48
Communication Protocols
CAN (ARINC-825), RS-485
Time Between Overhaul
10,000 hours
Certification Intent
Part 33, DO160, DO178, ARP4754

These specifications are estimates extrapolated from our lower power product testing and simulation.

The flexibility and modularity of the HPDM architecture enables us to easily scale integrated motor drive designs ranging from 30kW to 30MW with >10 kW/kg (continuous) and minimal NRE cost. Get in touch today for a custom solution optimized for your application.

HPDM-320

320 kW | 2500 RPM | 35 kg

HPDM-320 Datasheet

HPDM-150

150 kW | 20K RPM | 11 kg

HPDM-150 Datasheet

HPDM-30X

30 kW | 70K RPM | 4.4kg

HPDM-30X Datasheet

Who We Are

Our mission at H3X is to develop the most advanced electric motors in the world to enable sustainable aviation and decarbonize the marine and industrial sectors.

Why did we start H3X?

For electric aircraft to be commercially feasible, substantial improvements need to be made to electric propulsion system technology.  Today, best-in-class motors and inverters have a combined power density of 3-4 kW/kg.  ARPA-E has determined that for a Boeing 737 to complete a typical five hour flight, the propulsion system must be >12 kW/kg continuous.

We have the solution.

At 12 kW/kg continuous, the HPDM exceeds ARPA-E’s requirements and is at least 3X better than current systems. It is a step change in electric propulsion technology and removes one of the main barriers blocking widespread commercialization of electric aircraft.

Where can the HPDM products be used?

Our products offer the most benefits for propulsion or power generation in any mass-sensitive, packaging-constrained, or high performance applications.

HPDM-30 and HPDM-250 Applications: Drones, hypersonics, undersea ROVs, eVTOL, rockets and space actuators and pumps, small aircraft, specialized ground vehicles

HPDM-1500 Applications: Regional aircraft, ferries, tugs, submarines, industrial equipment, mining and construction, electric locomotives.

Our Investors

H3X Founders

H3X brings together driven minds from the automotive, aerospace, and motorsports industries with deep knowledge in electric motors, power electronics, & vehicle engineering. We love what we do and are looking to hire people who share that same passion.

As CEO, Jason is responsible for overall business direction and power electronics development at H3X.  His speciality lies at the intersection of business leadership and hardcore engineering. Prior to H3X, he started his own engineering consulting company where he has helped several companies in the automotive and aerospace industries bring their EV product visions to life.  He has a B.S. and M.S. in Electrical Engineering from University of Wisconsin-Madison. Fun fact - Jason (and Max) co-founded UW-Madison’s electric Formula SAE team and built the first AWD electric racecar in the United States.

Jason Sylvestre

Chief Executive Officer

Max is a multidisciplinary engineer with a laser focus on physics fundamentals and deep knowledge in both mechanical and electrical engineering. As CTO, he is responsible for H3X’s overall product engineering, electric motor design, and core technology development. Max’s background includes holding key roles in vehicle modeling, architecture, and electric motor design in both the automotive and aerospace sectors. He has a B.S. in Mechanical Engineering and an M.S. in Electrical Engineering from University of Wisconsin-Madison.

Max Liben

Chief Technology Officer

Eric is responsible for all operations and mechanical design at H3X. In Eric’s prior roles, he has lead projects to develop control systems for electric and hybrid powertrain systems from the ground up. He has a B.S. in Mechanical Engineering from University of Wisconsin-Madison. Eric comes from a proud heritage of craftsmen – from butchers and bakers to electricians and steamfitters. This unique background has enabled to him bridge the gap between advanced engineering theory to practical and scalable solutions.

Eric Maciolek

President

Latest Media

Find out the latest news and hear what others think about H3X. Follow us on our Medium and LinkedIn to stay tuned.

linkedin.com/pulse

H3X in 2023: A Year in Review

engineering.wisc.edu

UW-Madison trio’s innovative electric motors land them on Forbes 30U30 list

manufacturo.com

Manufacturo and H3X Forge Ahead with a Groundbreaking Partnership

linkedin.com/pulse

H3X Lands Multi-Million Dollar Tax Incentive from Colorado for Scaleup

linkedin.com/pulse

H3X Hits 180 kW With HPDM-250 Integrated Motor Drive

futureflight.aero

Lockheed Martin Backs Megawatt-Class Electric Propulsion Developer H3X

businesswire.com

PR: Lockheed Martin Ventures Invests in Electric Motor Manufacturer H3X

aviationweek.com

H3X Releases Latest Integrated Motor Drive HPDM-30

revolution.aero

H3X Releases Latest Integrated Motor Drive HPDM-30

medium.com

H3X Unveils HPDM-3000 Concept Prototype

autonews.com

Startup's motor drives could help electrify flight

podlink.to

Homeroom Podcast: Max Liben from H3X Technologies

medium.com

H3X Wins $1,250,000 AFWERX Phase II Contract for HPDM-250

futureflight.aero

H3X Aims To Deliver 2.8MW Electric Drive To Convert Airliners

medium.com

H3X reaches Major Testing Milestone with its HPDM-250

medium.com

H3X tests its 12 kW/kg HPDM-250 Integrated Motor Drive

brandonbartneck.com

Podcast – Max Liben | H3X – Integrated Motor Drives for Electric Aircraft

medium.com

H3X to open new Headquarters in Denver, Colorado

medium.com

H3X Raises $3.8M Seed to Develop New Electric Aircraft Motors

cleantechnica.com

Groundbreaking H3X Motor Brings Electric Aircraft One Step Closer To Reality

techcrunch.com

H3X rethinks the electric motor to power the next phase of mobility

newatlas.com

H3X claims it's tripled the power density of electric aircraft motors

Get in Touch

Contact H3X today to see how you can use our products in your vehicles. We are looking to develop long-term relationships with first adopters and partners interested in revolutionizing the aircraft industry and creating a sustainable future.


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Designed and Made in the United States of America

Designed and Made in the United States of America

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