Axial Flux (Disc) Motors & Generators(25kw-900kw)

Redefining Power Density with Axial Flux Technology

The RAF Series is Rawsuns’ flagship line of axial flux (disc-type) permanent magnet motors and generators, engineered for high-torque, compact-footprint propulsion and power generation across commercial vehicles, construction machinery, mining trucks, marine, and range-extender applications. Delivering 25–900 kW of power output with peak efficiencies up to 98.2%, the RAF platform packs extreme performance into remarkably thin, lightweight packages — redefining what’s possible in electric drivetrain design.

Product Range at a Glance

Category	Models	Power Range	Peak Torque	Key Platforms
Drive Motors	37	25–890 kW	Up to 6,000 N·m	RAF60K → RAF600K
Generators	10	20–900 kW	Up to 6,000 N·m	RAF215S → RAF900K
Bi-Directional Units	2	320–900 kW	Up to 6,000 N·m	RAF450K, RAF900K (motor + generator)

Why RAF Series

Axial Flux Architecture: Disc-type stator design delivers industry-leading torque density — up to 6,000 N·m in a package as compact as φ592×407 mm. Up to 5× thinner than conventional radial motors at equivalent torque.
Ultra-High Efficiency: 95.4%–98.2% peak efficiency across the lineup. Generator variants (RAF215S-25K, RAF450K, RAF900K) achieve 98.2%, maximizing energy recovery in range-extender and regenerative systems.
Scalable Platform System: 15+ platforms from compact RAF60K (23 kg, 39 kW) to heavy-duty RAF480S (185 kg, 890 kW) and RAF600K (330 kg, 600 kW continuous).
Broad Voltage Coverage: 144V to 630V DC, compatible with 400V and 600V+ vehicle architectures without external conversion.
Water-Cooled as Standard: All models feature liquid cooling for sustained high-load operation across -40°C to +85°C ambient.
Bi-Directional Capability: Select models (RAF450K, RAF900K) function as both motor and generator — ideal for heavy-truck regenerative braking, mining truck energy recovery, and marine hybrid systems.
Proven in Extreme Duty: S9 continuous duty cycle rating; deployed in mining trucks, dump trucks, tractor-trailers, concrete mixers, aerial work platforms, locomotive cranes, and marine vessels.

Technical Highlights

Parameter	Drive Motors	Generators
Rated / Peak Power	25–890 kW	20–900 kW
Rated / Peak Torque	85–6,000 N·m	25.5–6,000 N·m
Bus Voltage	144–630 VDC	320–630 VDC
Max. Speed	1,500–10,500 rpm	1,700–3,500 rpm
Max. Efficiency	95.4–97.9%	98.2%
Weight	23–362 kg	23–362 kg
Cooling	Water-cooled (all)	Water-cooled (all)
Duty Cycle	S9 (continuous, varying load)	Continuous

Applications by Platform Tier

Tier	Platforms	Target Application
Light / Compact	RAF60K, RAF Small (Extender)	Light commercial EVs, compact range-extenders (21–78 kW)
Medium Duty	RAF80K, RAF215S, RAF260S, RAF150K	Delivery vans, buses, construction machinery, concrete mixers
Heavy Duty	RAF315S/325S, RAF345S, RAF230K, RAF300K	Mining equipment, heavy trucks, aerial work platforms, crane generators
Extreme Duty	RAF430S, RAF450K, RAF480S, RAF600K, RAF900K	Mining trucks (890 kW), dump trucks, marine gensets, locomotive cranes, heavy-haul tractors

Applications

Commercial Vehicles: Light to heavy-duty trucks, delivery vans, buses, refuse trucks.
Construction & Mining: Excavators, loaders, mining trucks (RAF480S 890 kW flagship), dump trucks, concrete mixers.
Marine: Onboard gensets, hybrid propulsion, range-extender generators (RAF600K marine variant).
Specialty & Industrial: Aerial work platforms, locomotive cranes, non-road mobile machinery, agricultural equipment.
Range Extenders: Compact to high-power genset units (20–170 kW) for extended-range electric vehicles.

Standards & Compliance

Platform