Lawn Mower Product

Overview

A walk-behind lawn mower cuts grass by spinning a horizontal steel blade at high speed inside a wheeled deck. This model is a self-propelled petrol unit: a single-cylinder overhead-valve engine drives the blade directly off the bottom of its crankshaft while a separate belt and transaxle turn the rear wheels so the operator only has to steer.

The Engine Assembly is a 163 cc air-cooled OHV petrol unit. A Recoil Starter spins the flywheel to crank it, a float-bowl Carburetor meters the fuel-air mixture, and a flywheel-magneto Ignition Coil fires the spark plug. A mechanical Governor holds engine speed steady as the cutting load rises and falls. The vertical crankshaft passes straight down through the deck to the blade.

How it works

Power leaves the crankshaft and enters the Cutting Assembly, where a keyed Blade Adapter couples the engine to a balanced Cutting Blade. The blade's airfoil wings both sever the grass and loft the clippings, creating the airflow that carries them out of the Cutting Deck and into the Grass Catcher at the rear. The deck shell shapes this airflow into a cutting chamber and channels the discharge.

For propulsion, the Self-Propel Drive takes a V-belt off the crankshaft pulley into a single-speed transaxle that turns the rear wheels. Squeezing the drive bail pulls a Bowden cable that engages the transaxle clutch.

Construction

Each Wheel Assembly carries the deck at the set cutting height through a spring-loaded lever adjuster, so all four wheels move together when the height is changed. The Handle & Controls folds for storage and carries the operator-presence blade bail; releasing it stops the blade through the flywheel brake. The blade spindle, transaxle, and wheels all run on sealed ball bearings, and the whole machine is bolted together with a common Fastener Set. ', },

'leaf-blower': { specs: [ ['Type', 'Cordless handheld axial leaf blower'], ['Motor', 'Brushless DC outrunner'], ['Battery', '36 V Li-ion (10× 18650)'], ['Battery capacity', '4.0 Ah, 144 Wh'], ['Air volume', '650 m³/h (385 CFM)'], ['Air speed', '273 km/h (170 MPH)'], ['Nozzle', 'Tapered + flat concentrator'], ['Speed control', 'Variable trigger + cruise dial'], ['Runtime', '12–60 min depending on speed'], ['Noise level', '64 dB(A) at operator'], ['Sound power', '96 dB(A)'], ['Filtration', 'Reusable foam intake filter'], ['Weight (with battery)', '3.6 kg (7.9 lb)'], ], body: '

Overview

A leaf blower clears leaves and debris by accelerating a large volume of air into a fast jet. This model is a cordless handheld unit built around a brushless motor and a removable lithium-ion pack. The motor spins an axial impeller that draws air through a guarded inlet and forces it through a scroll housing and out a tapered nozzle.

The Power Unit pairs a BLDC Motor with a Motor Controller. The motor is an outrunner BLDC unit with a wound stator and a permanent-magnet rotor; the controller is a three-phase inverter board whose Power MOSFET Stage commutate the windings under MCU control, setting motor speed from the trigger signal. DC power comes from the Battery Pack, a series-parallel array of 18650 cells managed by a BMS board for protection and balancing.

How it works

The motor shaft drives the Impeller Assembly. A glass-filled nylon Impeller (Fan) sits inside a Volute Housing, a spiral scroll that raises air velocity as the flow moves toward the outlet. A retaining nut clamps the impeller to the shaft. Working air enters through the Intake Assembly: a slotted grille keeps fingers and large debris out, and a reusable foam filter keeps dust off the impeller and motor.

The accelerated air exits through the Blower Tube Assembly, a rigid tube ending in a tapered nozzle that narrows the stream to raise exit speed. A flat concentrator attachment can be fitted for stubborn wet debris.

Construction

The operator commands speed from the Handle Assembly: a variable-speed trigger sets output proportional to travel, and a cruise dial holds a set speed without holding the trigger. The powerhead is enclosed by the Housing, two moulded clamshell halves carried on rubber anti-vibration mounts that damp motor and impeller vibration into the grip. Power and trigger signals run between the battery, controller, motor, and trigger through the Internal Wiring harness. ', },

'robotic-lawn-mower': { specs: [ ['Type', 'Autonomous battery robotic mower'], ['Drive', 'Differential, two BLDC gearmotors'], ['Cutting system', '3 pivoting razor blades on a disc'], ['Cutting width', '220 mm (8.7 in)'], ['Cutting height', '20–60 mm, motorised'], ['Battery', '18 V Li-ion (5× 18650)'], ['Coverage', 'Up to 1,200 m² per charge cycle'], ['Max slope', '45% (24°)'], ['Navigation', 'GPS-RTK + boundary-wire sensing'], ['Sensors', 'Lift/tilt, collision, rain, IMU'], ['Security', 'PIN lock + alarm'], ['Charging', 'Auto-return dock, contact charging'], ['Ingress rating', 'IPX5 weatherproof'], ['Weight', '11 kg (24 lb)'], ], body: '

Overview

A robotic lawn mower keeps a lawn trimmed automatically, navigating on its own, cutting little and often, and returning to a dock to recharge. This model combines differential-drive wheels with a spinning blade disc and navigates by GPS-RTK positioning backed up by a buried boundary wire.

The Chassis & Body is a weatherproof body that carries the drivetrain, electronics, and battery beneath a floating cover. The cover is spring-suspended so that a collision or a lift shifts it and trips the Lift/Tilt Sensor, cutting the blade motor; an emergency stop button sits underneath. The Main Controller Board runs the show: a compute SoC handles mapping and navigation while an MCU runs the real-time drive, blade, and safety loops and the motor power stages.

How it works

The Drive System uses two independently driven geared wheel motors for propulsion and steering, plus free-rolling front casters. Each wheel motor reduces a BLDC through a gearbox and reports rotation through a Hall encoder for odometry. The Cutting System spins a lightweight disc carrying three pivoting razor blades; centrifugal force flings the blades out to cut, and they swing clear when they strike a hard object.

To stay inside the lawn, the Navigation & Sensing pack fuses GPS-RTK fixes with inductive boundary-wire pickups, an IMU for heading and slope, and collision and rain sensors. Power comes from the Battery Pack, a managed lithium-ion pack.

Construction

The operator schedules and configures the mower through the UI Panel, a sealed keypad and display gated by a PIN lock against theft. When the battery runs low the mower follows the boundary wire home to the Charging Station, a mains-powered base that energises the perimeter loop and recharges the mower through spring-loaded dock contacts. ', },

'snow-blower': { specs: [ ['Type', 'Two-stage self-propelled petrol snow blower'], ['Engine', 'Single-cylinder air-cooled OHV petrol'], ['Displacement', '254 cc'], ['Starting', '120 V electric + recoil backup'], ['Clearing width', '610 mm (24 in)'], ['Intake height', '530 mm (21 in)'], ['Throw distance', 'Up to 12 m (40 ft)'], ['Auger', 'Twin serrated steel, shear-pin protected'], ['Impeller', '3-blade steel, second stage'], ['Chute rotation', '200°, crank-operated'], ['Drive', 'Friction-disc, 6 forward / 2 reverse'], ['Tyres', '380 mm (15 in) X-Trac'], ['Headlight', 'LED work light'], ['Weight', '90 kg (198 lb)'], ], body: '

Overview

A two-stage snow blower clears deep, packed snow in two steps: a slow auger gathers and breaks up the snow and feeds it to a fast impeller that throws it out a directional chute. This model is self-propelled and petrol-powered, with both electric and recoil starting.

The OHV Engine Assembly is a 254 cc OHV petrol unit built around a Short Block. It starts on a button through a 120 V Electric Starter, with a Recoil Starter as manual backup. A float-bowl Carburetor with a primer bulb handles cold starts, and a flywheel-magneto ignition fires the spark plug.

How it works

The first stage is the Auger Assembly: counter-rotating helical flights scoop and break up snow and feed it inward to the centre. A right-angle Auger Gearbox drives the auger slowly off the impeller shaft, and sacrificial shear pins snap to protect the gearbox if the auger jams on a hidden object. The gathered snow reaches the second stage, the Impeller Assembly, a high-speed paddle fan that flings the snow up the chute.

The Discharge Chute Assembly aims the snow stream: a worm gear swivels the chute left and right from a dash crank, and a hinged deflector sets throw distance. All of this is enclosed in the Bucket & Housing, a welded steel housing with a replaceable scraper bar and adjustable skid shoes.

Construction

The Drive System takes engine power through a rubber friction disc that gives variable forward and reverse speeds, with belts driving the auger and a geared transmission turning the traction wheels. The operator works the Handle & Controls, whose squeeze levers engage the auger and drive clutches through Bowden cables. A Electrical System system powers the electric starter and an LED headlight. ', },

'string-trimmer': { specs: [ ['Type', 'Petrol straight-shaft string trimmer'], ['Engine', 'Single-cylinder air-cooled 2-stroke'], ['Displacement', '25.4 cc'], ['Rated power', '0.7 kW (0.95 hp)'], ['Fuel', '50:1 petrol/oil mix, 0.45 L tank'], ['Clutch', 'Centrifugal, engages above idle'], ['Drive shaft', 'Flexible steel cable in straight tube'], ['Gear head', 'Right-angle bevel reduction'], ['Cutting head', 'Bump-feed dual-line'], ['Line diameter', '2.4 mm (0.095 in)'], ['Cutting swath', '430 mm (17 in)'], ['Spindle speed', '7,500 rpm'], ['Harness', 'Single-shoulder, quick-release'], ['Weight (dry)', '5.4 kg (11.9 lb)'], ], body: '

Overview

A string trimmer (weed-eater) cuts grass and weeds with a fast-spinning nylon line rather than a blade, so it can work along edges, fences, and obstacles a mower cannot reach. This model is a petrol straight-shaft unit: a 2-stroke engine at the top drives the cutting head at the far end through a long drive shaft and a right-angle gearbox.

The Power Head holds the Engine Assembly, a 25.4 cc air-cooled 2-stroke, and a Clutch Assembly. The engine is fed by an all-position Diaphragm Carburetor that meters fuel against crankcase pulse pressure, draws fuel from the Fuel Tank, and fires through a flywheel-magneto ignition. A Recoil Starter spins the flywheel to start it.

How it works

Above idle, the centrifugal clutch's shoes fling out and grip the drum, coupling the engine to the Shaft Assembly. A flexible steel drive cable runs the length of the aluminium tube on liner bushings, carrying rotation down to the Gear Head. There a bevel gear pair turns the drive 90° and reduces its speed before the cutting head.

The Trimmer Head is a bump-feed design: monofilament line spun at speed cuts the vegetation, and tapping the bump knob on the ground pays out fresh line through hardened eyelets as the working ends wear away. A Debris Guard shields the operator from thrown debris and carries a blade that trims the line to length.

Construction

The operator supports and aims the tool with the Handle Assembly, a loop handle clamped to the shaft carrying the throttle trigger and ignition kill switch; a Bowden cable links the trigger to the carburetor. A padded Shoulder Harness slings the tool's weight off the shoulder, and a common Fastener Set secures the assembly. ', },

'hedge-trimmer': { specs: [ ['Type', 'Cordless brushless hedge trimmer'], ['Motor', 'Brushless DC'], ['Battery', '36 V Li-ion (10× 18650, 5S2P)'], ['Battery capacity', '2.5 Ah, 90 Wh'], ['Blade type', 'Dual reciprocating, dual-action'], ['Blade length', '610 mm (24 in)'], ['Tooth spacing', '25 mm cutting capacity'], ['Strokes', '3,200 spm'], ['Drive', 'Helical reduction + dual eccentric crank'], ['Rear handle', 'Rotating, 5 detent positions'], ['Safety', 'Two-hand interlock + electric brake'], ['Noise level', '85 dB(A)'], ['Weight (with battery)', '3.9 kg (8.6 lb)'], ], body: '

Overview

A hedge trimmer shapes hedges and shrubs with two long toothed blade bars that slide back and forth in opposition, shearing branches between their teeth. This model is cordless: a lithium-ion pack and a brushless motor drive the blades through a reduction gear and an eccentric crank.

The Power Unit is a brushless DC motor with its own Motor Controller. The controller is a three-phase speed controller whose MOSFET Inverter Bank commutates the motor windings under MCU control and handles trigger and brake logic. DC power comes from the Battery Pack, a removable slide-on 5S2P Li-ion pack with a BMS for protection and balancing.

How it works

Motor rotation enters the Drive Mechanism, where a Reduction Gearbox steps the speed down and a twin-lobe Eccentric Crank drives two scotch-yoke pins 180° apart. This reciprocates the two blade bars in opposition: as one moves left, the other moves right, so the cutting teeth pass each other to shear.

The Cutting Assembly carries an upper and a lower hardened-steel blade bar with a ground tooth profile, held in alignment by a slotted guide plate and shimmed for free sliding. A moulded tip cover guards the bar end and reduces kickback.

Construction

The Handle Assembly pairs a wrap-around front bail with a rotating rear pistol grip that detents through several angles for cutting tops and vertical faces. A variable-speed trigger and a front-handle safety switch form a two-hand interlock that must both be held before the blades run. The motor, drive, and controller sit inside the Housing, two glass-filled nylon clamshell halves with a louvred vent grille; power and signals run through the Wiring Harness harness.