Electric Drive
Why electric?
To support our high blade density—three cutting spindles per metre of cutting width—we use an all-electric spindle drive. We developed our own electric spindle motor; each spindle is individually driven, with power supplied by a PTO-driven generator.
This layout is relatively efficient compared with mechanical or hydraulic systems because it avoids drive shafts, gearboxes and V-belts. Without those components we can mount the decks for optimal ground following and still fold them to compact, road-legal transport dimensions.
The result is quiet operation, low maintenance, and proven reliability from Scandinavia to Southern Europe.
Easy maintenance
Years of field use have allowed us to simplify the electrical system so it’s straightforward for electricians and service technicians to understand. Our in-house electric spindle is based on a 400 V AC three-phase motor, built from proven, industrial-standard components. Most issues can be diagnosed with standard tools and resolved quickly.
We also use high-quality, widely available off-the-shelf parts wherever possible, minimizing faults and making replacements easy to source—keeping downtime and service costs low.
Battery electric drive
Building on our electric spindle architecture, the decks can be powered directly via an inverter from a high-voltage DC bus (600–700 V DC). That DC supply can come from an onboard battery pack or from a hybrid tractor with a high-voltage generator.
Feeding the spindle motors directly through the inverter delivers higher drive efficiency by eliminating PTO gear trains and generator conversion losses.
For the FM343, we can supply a 65 kWh battery pack mounted behind a compact tractor in place of the generator. This preserves the tractor’s own traction battery for longer runtime and allows the FM343 to power the cutter decks from its dedicated pack for a full shift under typical mowing conditions—while keeping the driveline simple, quiet, and low-maintenance.
