AS 21 2T ES
Categories
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Mulching is a process by which grass cuttings are shredded several times into a fine mulch, which then remains on the surface as natural fertiliser. Special mulching blades with a double cutting plane and a circular mulching unit are used on ornamental lawns, while cross-blade systems or flail mowers are primarily used in high grass.
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Ornamental lawns in both private gardens and public facilities can be maintained with either mulching or collecting mowers. When mulching, the finely-shredded cuttings remain on the surface as natural fertiliser, while collection bags help the operator transport cuttings to a disposal point. Lawns are usually mowed once per week to a cutting height of 40–50 mm, from a maximum height of 15 cm.
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Flower meadows are structurally rich habitats that are extremely important for insects, wild bees, and species that depend on flowers. The key is not to mow frequently, but to cut at the right time. Before the flowering phase, the vegetation can quickly reach heights of 30–40 cm. After that, maintenance is carried out at longer intervals, usually once or twice a year. This form of extensive use requires machines that can safely cut tall, heterogeneous vegetation without putting unnecessary strain on the area. Clean cuts, controlled deposition, and an adapted driving style are essential for preserving plant populations and enabling regeneration.
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Extensively used meadows such as orchards, compensation areas, or roadside greenery are deliberately mowed only once or twice a year. The vegetation reaches heights of 60 to over 100 cm and forms dense, structurally rich stands. This form of maintenance serves to keep the area open and suppress woody plants, not to maintain the lawn. Machines with high throughput, uniform cutting performance, and controlled deposition of the cut material are required. This is the only way to efficiently manage large amounts of biomass without overloading the area or damaging the soil and vegetation.
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Without maintenance, open areas quickly become overgrown with blackberries, clematis, and young trees. In young forests, reforestation areas, or Christmas tree plantations, targeted brush clearing is necessary to secure the desired structures and reduce competition. It is crucial to use maintenance methods that intervene selectively and do not destroy large areas. Mechanical flail mowing technology makes it possible to remove woody growth and vigorous shrubs without unnecessarily damaging the soil structure and root space. This ensures that areas remain usable and ecologically stable in the long term.
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During the mowing season, professional operators often run their machines 5 days per week, 8 hours per day. AS-Motor’s machines are unbeatable in terms of quality, durability and professional work results. Additional advantages include low weight, lashing points and compact transport dimensions.
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Animal burrows, anthills, mole hills and water channels cause uneven terrain. Several AS-Motor machines have high ground clearance, all-wheel drive and limited slip differential, along with appropriately studded field tyres, for uneven terrain.
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AS-Motor engineers machines with high ground clearance, steep ramp angles, low overall weight, optimal weight distribution and a low centre of gravity to perform on slopes.
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All-wheel drive not only ensures performance on inclines over 30 degrees, but also a high level of safety for travel downhill. All-wheel drive delivers propulsion in wet conditions and on uneven terrain – even if the wheels of one axle no longer have traction.
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Remote controlled devices make the mowing of extreme slopes possible. This technology also allows the operator to mow at a safe distance from dust, wasps, ticks and other hazards.
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The AS 50’s high work rate delivers efficient weed removal on large and uneven surfaces such as a car parks, commercial areas and paths. A collection bag eliminates the need for sweeping and surface cleaning.
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Cobblestones and uneven paved areas can be treated for weeds, without the use of chemicals, using mechanical methods. The agile AS 30 is designed for work close to edges, water inlet channels, manholes and on traffic islands with posts and signs.
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Ecological mowing and extensive land management focus on reduced, targeted interventions instead of blanket mowing. Cutting heights, timing, and maintenance intervals are based on vegetation development and site conditions, not on maximum area coverage. Sub-areas are mowed on a rotating basis, while others are deliberately left untouched. This creates varying growth heights, refuges, and stable structures on extensive meadows, compensation areas, municipal green spaces, and in landscape management. Technology is used for control, not intensification.
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Agile and easy-to-maneuver Allmäher with traditional 2-stroke engine
A classic 3-wheel concept Allmäher, the AS 21 2T ES is equipped with the world’s only 2-stroke engine that meets the requirements stipulated by the EU Emissions Directive 97/68/EC. The AS 2-stroke engine maintains engine lubrication regardless of position, enabling work on inclines of 45 degrees and more without the risk of engine damage. In addition, the AS 2-stroke engine is factory-equipped with an EasyStart function; the CDI digital ignition system cuts the rpms required to start in half. Air for the engine is suctioned in via a factory-installed, high-positioned snorkel filter, supplying the engine with dust-free air while the 2-stroke engine’s high torque provides full power in high grass. A third crankshaft bearing and friction discs on the wing blade protect the engine in the event of unseen obstacles. Large wheels with aggressive tread offer ideal propulsion at speeds up to 2.8 km/h.
Agile maneuvering thanks to the 3-wheel concept
The AS 21 2T ES is ideally suited for mowing on angles and curves. The swivel front wheel can be mechanically stopped diagonal to the slope, ensuring stability and comfortable work. The operating bar can be adjusted laterally and for height without the use of tools.
Work rates reaching 1,400 m² per hour are possible due to a powerful 2-stroke engine with up to 6.7 hp and a 51 cm cutting width. Cutting heights can be easily adjusted within the range of 55–80 mm via four height levels on the front wheel and two height levels on the rear wheels. The AS 21 2T ES easily handles grass up to 90 cm high.
Product advantages
The world's only AS 2-stroke engine with EasyStart has position-independent lubrication, ensuring safe operation even on steep slopes.
A high-positioned snorkel filter supplies the engine with dust-free air.
To mow on slopes and around obstacles.
Rear-wheel drive ensures optimal propulsion on slopes and level ground.
Third crankshaft bearing and friction discs on the mulching blade ensure optimal engine protection.
Product details
Adjustable operating bar
Guide bar can be adjusted laterally and in height without tools to adapt to every operator.
Steerable front wheel
Swivel front wheel can be stopped in position for safe traversing on slopes.
Technical Data
Accessories
Rear wheel brake
Rear-wheel drive ensures optimal propulsion on slopes and level ground.
Plastic hand guard set
Effective protection against brambles and thorns.
Operating hour meter
Documentation of work hours.
Special blade
Suitable for areas with sandy soil.
Twin wheels (AS 21, 26, 53)
Optional twin tyres for improved traction on slopes.
Tilt meter
Convenient display of slope incline.
AS 2-stroke oil "Titan 2T"
Premium Performance two-stroke oil, for an optimal environmentally-friendly mixing ratio. Recommended for all AS 2-stroke engines. Tested and approved for our recommended mixing ratio of 1:100. Also suitable for 1:50 mixing ratio. Replaces our former TITAN 2T 100S oil, which is no longer available.
Climbing aid
Improved traction, particularly during work transverse to the slope.







