THE WORLD’S MOST ADVANCED ELECTRIC POWERTRAIN
Transmission technology for tomorrow's industry.
The EMAX single powertrain solution and MID-Series electric transmissions combine Sigma’s innovative technology and software to provide state-of-the-art power for any class vehicle.
Discover EMAX
A single powertrain electric transmission designed to work with any size or class of vehicle.
Discover MID-Series
A multi-mode electric transmission that provides reliable, compact power for your electric vehicle.
OUR PRODUCTS
Designed to work with any size or class vehicle.
One-size-fits-all
Discover the power of modularity with EMAX. At just 18″ long, EMAX has 4 CVT modes capable of a combined 4600Nm of input torque. This extremely high power density means it has capacity for a class 8 semi-truck, yet it’s small enough for a class 1 F-150.
Multiple motor inputs to meet any power needs
EMAX has a common gearbox with interchangeable inputs and outputs. This modularity design mean sit works with any size or class of vehicle.
Multi-mode maximizes electric efficiency
EMAX is a maximum efficiency multi-mode powertrain. Each e-motor operates at 3 and 2 unique ratios respectively, each with independent power flow through a common box. This maximizes efficiency — keeping more of the drive cycle in the “sweet spots” of the e-motors.
No hydraulics
EMAX’s all-electric powertrain has no need for hydraulics. Imagine that.
Park it. Hold it. A solution designed to fit any electric vehicle.
Patented 2-way electric clutch
Our patented Park Electric Park & Hill Hold is designed to fit any electric vehicle.
Included with all systems
Electric Park & Hill Hold comes included in all Sigma Powertrain systems.
Available separately
Interested in purchasing Electric Park & Hill Hold separately? Contact us for more information.
Reliable, compact power for your electric vehicle.
Completely integrated
The MID-Series multi-mode electric transmission is a completely integrated 300hp 3-speed BEV that includes inverters, heat exchangers, water pump, oil pump and pan.
Each MID-Series comes complete with an integrated powertrain controller, control software, and default calibration.
Sized for classes 1–6
Patented all-electric clutches
Our patented all-electric clutches provide extreme efficiency and power density.
Electric park & hill hold
All versions of the Mid-Series electric transmission include our Electric Park & Hill Hold feature.
Want to take it for a spin? See which shows we’ll be at this year where you can take Raptor EVolved for a test drive!
Our first proof-of-concept vehicle, launched in Q1 2020, Raptor EVolved is equipped with an EMAX electric powertrain.
800 horsepower
Hungry for horsepower? Look no further. The Raptor EVolved packs an impressive 800hp, because electric is uncompromising.
All-electric 4WD
Maintain carry-over driveline with true 4×4 H/L capability.
150 mile+ range
We know it’s at least 150 mile range. Further details and specs for final mile range will be available soon. We’re still driving it right now.