humus mower – professional technology for agriculture & municipalities
humus is your partner for high-quality mulching equipment for agriculture, municipalities and professional grounds care. For over 70 years we have been manufacturing robust, low-maintenance systems with high efficiency, reliable power transmission and clean mulch distribution. The result: shorter setup times, consistent performance and sustainable maintenance. Our technology serves the environment.mower
humus flail mower
A flail mower uses a rotor mounted transversely to the direction of travel that spins at high speed counter to the travel direction. Flails are arranged in a spiral pattern on the rotor and are pendulum-mounted. The spiral layout ensures even intake across the working width, reduces load peaks and vibration, and improves cut quality. The pendulum mounting lets the flails deflect on impact with foreign objects, protecting the drive and rotor and keeping the machine stable in varying vegetation.
Inside the robust housing, serrated counter blades support comminution: material is not only cut but actively guided against the counter blade and finely shredded. A rear roller guides the machine, sets the cutting height and lays the mulch evenly behind the rotor. The result is a homogeneous mulch layer with a clean finish that makes subsequent soil work easier.
Power is transmitted by reinforced V-belts with automatic tensioning to a protected rotor shaft. This combination provides reliable power transfer, damps shock loads and lowers day-to-day maintenance. Depending on series and knife system, flail mulchers process not only grass and herbaceous growth but also woody material—up to around 10 cm diameter—safely and efficiently. The right tooling (e.g. fine-cut knives or universal flails) and machine configuration are key.
In practice the system stands out for versatility and productivity: from grassland and pasture care through roadside maintenance and orchards/vineyards to handling crop residues such as maize stubble. The outcome is short setup and work cycles, a clean, resilient cut and high area output under professional conditions.
humus rotary cutter
A rotary (sickle) mower works with horizontally arranged, fast-rotating blades or blade carriers. The high tip speed creates suction, lifts the stems and draws the material into the airstream. Overlapping paths and balanced rotor geometry deliver a uniform cut across the full working width. Cutting height is set—depending on the design—via skids, gauge wheels or the carrier suspension and can be adapted to crop and task.
Inside the deck, flow guides and baffles recirculate material past the blades multiple times. This repeated cross-cutting produces short particles while the airstream spreads the mulch broadly. Depending on the deck configuration (mulch kit, closed discharge, baffles), material remains in the mulch chamber until the desired fineness is reached, then is deposited evenly on the surface—forming a fine, dense layer without windrows.
Drive is provided via PTO or hydraulics to a robustly supported blade carrier, often with belt drive and protective guards. The design prioritizes stable bearings, low vibration and reliable power transfer; regular deck cleaning and timely sharpening/replacement of blades preserve cut quality, power draw and output in continuous use.
In operation the system delivers an exceptionally clean cut, high travel speeds and uniform distribution of finely shredded material. Intensive comminution enlarges the surface area, accelerates decomposition and often makes collection unnecessary. The mulch remains on the surface as a protective layer, supports nutrient cycling and can simplify subsequent operations.
humus hydraulic flail heads
Hydraulic mulcher heads—typically in flail design—use a rotor mounted transversely to the travel direction, driven by a hydraulic motor. Instead of a PTO, the carrier’s hydraulics supply flow and pressure. This allows use on mini/compact excavators, loaders, tool carriers and hand-guided machines, reaching areas that are hard to access with conventional front-mounted implements thanks to booms or lift frames.
Power is supplied via pressure and return lines; depending on the carrier, a case-drain line may be required. For reliable, gentle operation, matched system components are crucial: sufficient flow, appropriate pressure, a low-back-pressure return, effective filtration and proper oil temperature control. Protective functions such as pressure relief, over-flow/anti-cavitation valves and freewheel safeguard the drive under shock loads and sudden stops.
The cutting system follows the proven flail principle: spiral-arranged, pendulum-mounted tools on the rotor ensure smooth running and even intake. Serrated counter blades in the housing raise the degree of shredding; the belt drive with automatic tensioning transmits power elastically and with low maintenance. Flow guides recirculate material past the tools multiple times, producing a clean cut and a fine, even mulch layer.
Hydraulic heads excel in flexibility and productivity: banks, verges, shoulders, ditches, understory and areas beneath fences or trees are processed precisely without reconfiguring carriers. With quick-change mounts and universal frames, different carriers can be used rapidly. Maximum performance requires a clean match of mount, hydraulic parameters and knife system to the task—yielding short setup times, a stable cut and high output.
humus brush/forestry mulchers
Brush (forestry) mulchers are based on hydraulically driven flail designs but use rigid tools (carbide/teeth) on the rotor shaft and a housing with wear-resistant liners. Instead of a PTO, carrier hydraulics provide flow and pressure; the rotor is driven by a hydraulic motor and elastic belt drive. This layout is engineered for high impact loads, continuous torque and maximum service life in hard, woody growth.
Rigid tools chip and mill brush, root sprouts and coppice—and, depending on configuration, tree stumps—to the required depth. As a result, brush mulchers keep working where a classic flail mulcher reaches its limits: in woody stands, skid trails, windthrow areas or site-clearance work. Wear liners (carbide/AR plate) protect against stone impact and abrasion and keep the cutting process controlled inside the housing.
The rotor turns with the travel direction; material is drawn under the rotor, repeatedly presented to the tools and reduced to chips/fine mulch. Flow plates and impact zones control dwell time and discharge, producing a uniform removal rate and defined chip size. The result: predictable output, clean finish and rapid follow-up—from corridor clearing to reclamation.
With universal mounts these units can be fitted to wheel loaders, radio-controlled crawlers, single-axle tractors or boom arms—ideal for hard-to-reach terrain, banks, ditches and edges. Full performance requires suitable hydraulic parameters (flow, pressure, return) and a tool package matched to the job. This delivers short setup times, high productivity and a reliable process in demanding vegetation. In pruning-wood chipping especially, humus brush mulchers show outstanding cutting performance: continuous feed, high chipping rate and a fine, evenly distributed material image, even in heavy woody growth.
humus verge flail mower
humus side mulchers open up areas front units cannot reach: ditches, embankments and zones under shrubs and hedges can be cut cleanly and with control. Side reach enables stable working angles from −60° to +90°—ideal for steep slopes, toe-of-bank work and vertical faces.
This makes verge maintenance and precise hedge trimming a routine task, especially in municipal grounds care. Side operation reduces maneuvering, improves access along paths and fences and ensures a uniform cut right into edge zones. The result: less rework, crisp edges and efficiently maintained verges and greens—even where conventional front-mounted equipment hits its limits.
humus Safety Mulcher
The humus Safety Mulcher technology provides effective protection against stone throw: special blades arranged in a spiral around the rotor limit rearward ejection and keep material controlled within the housing. This increases bystander safety and supports a clean, even mulch pattern—ideal for work along roads, paths and sensitive areas.
Availability matters too: blades can be changed in just a few steps, cutting service time and keeping the unit ready for work. The humus technology often meets the projectile test requirements of DIN EN 13524 for roadside service. This makes it especially suitable where certified protection concepts are mandatory in municipal and professional use. Optionally, the RAL 2011 colour ensures high visibility in operation.