AS 751 RC

Remote-controlled flail mulcher with crawler chassis for extreme slopes

The AS 751 RC is a remote-controlled flail mulcher with track drive that works safely and reliably even in extreme conditions. The machine’s engine and hydraulic module positioning result in a low centre of gravity, which combined with mounted crawler spikes and compact dimensions allow it to mow on slopes up to more than 45 degrees. A Briggs & Stratton Series 2100 I/C engine with 420 ccm displacement and up to 13 hp delivers reliable power while an oil and fuel pump protects the engine from damage at these inclines. Controlled via a professional remote-control unit with a maximum range of 300 m, the AS 751 RC’s hydrostatic transmission with reverse gear reaches a forward speed up to 6.0 km/h.

Unique crawler track drive with compact dimensions

The AS 751 RC’s crawler tracks move in proportion to each other via a pendulum suspension system, thus maintaining better ground contact and safety on uneven terrain and slopes. The machine’s low 59 cm height is a significant advantage on slopes and in special application areas, such as under photovoltaic systems in solar parks.

Flail mower unit for uniform results.

Equipped with a 32 Y-flails that simultaneously cut and shred grass, and an 87 cm track width, the AS 751 RC delivers excellent cutting results. Pendulum bearing supported Y-flails give way in the event of obstructions and foreign objects, protecting the blades from damage. The cutting height can be adjusted from 40–120 mm.

Product advantages

Innovative track drive

Pendulum-supported track drive adjusts to uneven terrain, ensuring optimal propulsion even in difficult conditions.

Proven blade system

Robust flail mower unit with Y-flails that can be used on both sides, optional cup flails.

Thrown object test (AS 751)

Tested in accordance with DIN EN 13524:2014 Annex B and ISO 17101-2:2012.

Low height

The low 59 cm height allows working on extremely steep slopes (max. 58°) or in tight spaces, such as under solar panels.

Variable hydrostatic transmission (AS 751)

Variable hydrostatic transmission allows both forward and reverse speed to be adapted to every application.

Product details

Remote control

Professional remote control for precise transmission of control commands (max. 300m range).

Track drive

Pendulum-supported track drive compensates for uneven terrain and thus ensures ground contact. This results in higher ground clearance on the rear frame and excellent propulsion in difficult conditions.

Engine cover

Service-friendly cover and protective bracket for engine and electrical system.

Service position

The flail mower unit can be conveniently brought into the service position for cleaning and maintenance.

Technical Data

cutting width 75 cm
maximum grass height 100 cm
engine manufacturer B&S
engine designation Series 2100 IC
4-stroke engine, 1-cyl. / 2-cyl. /
displacement 420 cm³
maximum power 9,5/13,0 kW (hp)
rated power 9,5/13,0 kW (hp)
rated speed 3600 rpm
starting device, manual / electric /
drive, mechanical/hydrostatic /
number of gears Vario
reverse gear
max. speed 6 km/h
automatic parking brake
limited-slip differential
blade clutch, electric / mechanical /
closed mowing deck
flail pairs 16
flail shape, Y / hammer /
cutting height 40 - 120 mm
both sides of the flails can be used
tank capacity 6,5 l
dimension L/W/H 186x87x59 cm
weight 345 kg


Crawler spikes

Improved traction, particularly when mowing diagonal to slopes.


Commercial landscaping

Performance on rough terrain, perfect cutting results and high efficiency are advantages AS-Motor machines provide to professional service providers.

Solar parks

Efficiency is crucial to maintaining a profitable solar park. AS-Motor offers the ideal tools to properly maintain the green areas around and under solar panels.

Gardening and landscaping

AS-Motor’s professional technology offers solutions for the diverse tasks of gardening and landscaping, from outdoor facilities to private gardens, public parks and residential lawns.

Municipal maintenance

Caring for green areas in the civic environment involves a variety of tasks. From parks to roadside management, AS-Motor provides the correct tools to ensure both professional results and operator safety.

Road maintenance

Maintaining roadways often involves mowing high grass and slopes, two specialties of AS-Motor’s professional technology.


AS-Motor offers professional technology for the maintenance of green spaces in and around public utility facilities.