Brushless Pruning Shear is an efficient tool in modern orchard management and gardening operations. Its performance core includes not only parameters such as cutting diameter, battery life, and blade material, but also cutting speed, which is an important factor that determines the operation efficiency and user experience. Cutting speed is directly related to the number of pruning times that can be completed per unit time. For agricultural and forestry users who need large-scale and high-frequency pruning operations, this parameter has a very high reference value.
Definition and measurement standard of cutting speed
Cutting speed usually refers to the time required for the scissors to complete a complete cutting action from fully closed to open and then back to the closed state. The unit is expressed in "seconds/time" or "times/minute" (cuts per minute, CPM).
Standardized cutting speed tests are usually carried out under no-load conditions (no cutting object) or when cutting branches of standard hardness. This test environment takes into account variables such as battery power, motor temperature, and blade lubrication to ensure that the data is representative of the actual situation.
The cutting speed range of brushless pruning shears
The cutting speed range of mainstream brushless pruning shears on the market is roughly as follows:
Light pruning shears: cutting speed is about 0.3~0.5 seconds/time, corresponding to a cutting frequency of 120~200 times/minute
Medium pruning shears: cutting speed is about 0.4~0.6 seconds/time, corresponding to a cutting frequency of 100~150 times/minute
Heavy pruning shears: cutting speed is about 0.6~0.8 seconds/time, corresponding to a cutting frequency of 80~100 times/minute
Fast-speed models are suitable for pruning of fruit trees with many fine branches and high density; moderate-speed models take into account both strength and efficiency; slow-speed but strong-cutting models are suitable for pruning hard and thick branches.
The impact of motor type on cutting speed
Brushless pruning shears use brushless DC motors (BLDC), and their speed control accuracy is much higher than that of traditional brushed motors. Brushless motors are combined with PWM (pulse width modulation) or FOC (field-oriented control) technology to dynamically adjust speed and torque under different shear resistance conditions.
For example, when cutting soft branches, the brushless motor will complete the action at a higher speed; when encountering harder or thicker branches, the speed will be slightly reduced to ensure the integrity and safety of the cutting. This intelligent speed regulation mechanism greatly improves the overall cutting efficiency and tool stability.
The relationship between cutting speed and operating efficiency
The increase in cutting speed directly leads to an increase in the number of pruning times per unit time. For example:
A brushless pruning shear with a cutting speed of 0.5 seconds per time can theoretically complete 120 cuts per minute
If the working time is 6 hours of effective operation time per day, more than 43,000 cutting actions can be completed
If the average cutting time per branch is reduced by 0.1 seconds, the cumulative daily operating time will save more than 1 hour
In high-intensity and high-frequency orchard pruning, nursery pruning and greening projects, this efficiency difference will greatly reduce labor costs and improve economic benefits.
The demand for shearing speed in pruning different tree species
Dense branch crops such as grapes, blueberries, and tea trees
Require fast and large-scale shearing, and it is recommended to use light brushless pruning shears with a shearing speed of 0.3~0.4 seconds per time.
Medium-sized fruit trees such as apples, pears, peaches, and plums
The branches are thicker and harder, so it is suitable to use medium-sized models with a shearing speed of 0.4~0.6 seconds per time, taking into account both strength and efficiency.
Hard woody tree species such as olives, walnuts, and chestnuts
The pruning objects are thick branches and hardwoods, and heavy brushless pruning shears with a shearing speed of 0.6~0.8 seconds per time are recommended, emphasizing the priority of shearing force.
Introduction to the intelligent shearing speed adjustment function
High-end brushless pruning shears usually have an "adaptive shearing speed adjustment system". This function is based on the motor torque feedback algorithm. When the shearing resistance is detected to be smaller, the shearing speed is automatically increased, and vice versa, the shearing torque is increased. The advantages of this function include:
Increase the service life of the blade
Reduce the mechanical impact during cutting
Reduce noise and vibration
Achieve a smoother cutting experience
Some models also provide a "dual speed mode" switch, and users can manually adjust the cutting speed according to the working object to meet the needs of different working scenarios.
External factors affecting the stability of cutting speed
Insufficient battery power: The voltage drop will reduce the motor speed. It is recommended to use it with a fast charging battery system
Severe blade wear: The blunt blade leads to increased cutting resistance, which indirectly affects the speed
Insufficient lubrication: The lubrication status of the transmission system affects the smoothness of the movement and should be maintained regularly
Control program problems: Low-quality control chips respond slowly, which may cause discontinuous or jamming cutting