1、 Working principle

The hedge cutting system achieves cutting by driving the blades with a power source, and the core principle can be divided into two categories:

1. Reciprocating cutting
   • The power source (gasoline engine or electric motor) drives the piston to make reciprocating motion in the cylinder, and converts the linear motion of the piston into the reciprocating linear motion of the blade through the connecting rod mechanism.
   • The blade edge cuts into the branches of the hedge at high frequency, utilizing its sharpness to cut through the branches, achieving continuous pruning with high frequency.
2. Rotary cutting
   • The power source drives the rotating shaft to rotate at high speed, and circular blades (usually in the form of a disc with multiple blade combinations) are installed on the shaft.
   • The high-speed rotation of the blade generates strong shear force, cutting branches like an electric saw, suitable for large-scale pruning.

2、 Structural composition

The hedge cutting system mainly consists of the following parts:

1. power system
   • gasoline engineSuitable for outdoor scenarios without power supply, with strong power but requiring regular maintenance (such as changing oil and cleaning spark plugs).
   • electric motorDivided into lithium battery type and AC power type, lithium battery type has strong portability, no external wiring constraints, suitable for complex terrains such as courtyards and slopes; AC power is suitable for fixed location operations.
2. Transmission system
   • Including gearboxes, linkage mechanisms, etc., power is transmitted from the engine or motor to the blades to ensure smooth and efficient cutting action.
3. Cutting components
   • bladeDivided into straight and curved blades, the high-strength double-edged design can handle dense and thick branches, cutting smoothly without jamming.
   • Blade clearanceRegular adjustments are required to maintain the sharpness of the cutting edge and ensure cutting quality.
4. control system
   • The handheld hedge trimmer controls the power start stop by operating the switch, and the operator manually moves the machine position and direction.
   • Vehicle mounted or large hedge trimmer is equipped with an operation console, which controls tool lifting, machine forward and backward movement, and steering through a joystick or button. Some models use hydraulic or electric control systems to achieve precise operation.

3、 Type and Characteristics

1. Handheld hedge trimmer
   • featureLightweight and flexible, suitable for trimming family courtyards and small green belts.
   • Classification：
     • Single blade hedge trimmerThe cutting efficiency is relatively low, but the price is affordable and suitable for light use.
     • Double edged hedge trimmerHigh cutting efficiency, suitable for large-scale trimming or fine shaping.
2. Vehicle mounted hedge trimmer
   • featureStrong power and mobility, can be installed on vehicles for fast transportation, suitable for scenarios such as highways and large parks.
   • advantage：
     • Equipped with blades that can adjust cutting height and angle to adapt to different growth states of hedgerows.
     • The guiding device ensures the straightness and accuracy of operation, reducing the impact on the road surface.
3. electric hedge trimmer
   • featureEnvironmentally friendly and energy-saving, low noise, easy maintenance, suitable for indoor or noise sensitive places.
   • Classification：
     • Lithium battery typeStrong portability, no external wiring constraints, but limited battery life.
     • AC power typeLong battery life, but requires an external power supply and limited mobility.

4、 Key points of maintenance and upkeep

1. routine inspection
   • Check if the screws are loose, especially the blade fixing screws, to prevent them from falling off and causing safety hazards.
   • Clean the dust and dirt on the blade to keep the edge sharp.
   • Check whether the trachea (pneumatic model) or wires (electric model) are aging or damaged, and replace them in a timely manner.
2. regular maintenance
   • Gasoline engine modelRegularly change the engine oil, clean the air filter, and check the condition of the spark plug.
   • Motor modelCheck the insulation performance of the motor and clean the dust from the motor's heat dissipation holes.
   • Adjust the blade clearance to ensure smooth cutting without jamming.
   • Lubricate transmission components such as gearboxes and linkage mechanisms to reduce wear.
3. Long term management
   • Establish and maintain a record of the time and results of each inspection, cleaning, and component replacement.
   • Store in a dry and ventilated place, avoiding direct sunlight and humid environments.
   • Replace it promptly after reaching the service life to avoid an increase in failure rate.