With the innovation of power tool technology, handheld brushless motor lithium chain saws have gradually become a popular choice in the field of wood cutting due to their high efficiency, portability and environmental protection.
1. Technical adaptability of applicable wood types
The cutting performance of handheld brushless motor lithium chain saws is closely related to their power performance and chain saw specifications. Based on the technical parameters of mainstream products (usually equipped with 20V-40V lithium batteries, cutting power of 800-2000W, and guide plate length of 20-30cm), their wood adaptability can be divided into the following three categories:
Softwood material
Pine, fir, poplar and other softwoods with a density of 350-550kg/m³ are the best suitable objects. The continuous torque provided by the brushless motor can easily cope with the fiber structure of this type of wood, with low resistance and weak vibration during cutting, especially suitable for branches with a diameter of less than 15cm. Experimental data show that under the same power, the efficiency of cork cutting is about 25% higher than that of traditional carbon brush motors, and the blade loss rate is reduced by 40%.
Medium-hard hardwood
For medium-hard woods with a density of 600-800kg/m³, such as oak and walnut, it is necessary to choose a model equipped with a high-speed chain saw (≥15m/s) and a professional cutting chain. It is recommended to adopt a step-by-step cutting strategy: first slot positioning and then gradually cut in, which can effectively avoid chain jams caused by uneven wood density. It is worth noting that the continuous cutting time should be controlled within 10 minutes to prevent the motor from overheating and affecting performance.
Specially treated wood
For composite materials such as antiseptic wood and laminated boards, attention should be paid to the selection of chain tooth shape. It is recommended to use a half-chisel or full-chisel chain, whose 45°-60° cutting angle can reduce the risk of material delamination. Actual measurements show that when cutting recycled wood containing metal nails, models equipped with an anti-stuck chain system can reduce the probability of unexpected downtime by 70%.
2. Technical analysis of typical application scenarios
Home gardening scenarios
In scenarios such as urban courtyard pruning and fruit tree shaping, the lightweight design (usually 2.5-4.5kg) and instant start-stop characteristics of lithium-ion chain saws have significant advantages. Its low noise level of 58-65dB meets the use specifications of residential areas. With the quick-change chain system, it can achieve multi-functional operations such as tree branch pruning and shrub shaping. According to a survey by the American Horticultural Association, user satisfaction in such scenarios reached 92%, mainly due to the high controllability of the equipment.
Forestry tending operations
In professional fields such as secondary forest thinning and firebreak cleaning, it is recommended to choose high-power models with a guide length of ≥25cm. After field testing, equipment equipped with a dual-battery system can operate continuously for 90 minutes, and a single charge can handle 30-40 birch trees with a diameter of 20cm. Models using electronic brake technology can achieve chain braking within 0.2 seconds to ensure safe operations on steep slopes.
Emergency rescue scenarios
In the handling of disasters such as hurricanes and ice disasters, the no-preheating feature of lithium-ion chain saws is crucial. Experimental comparison shows that its startup response speed is more than 3 times faster than that of fuel models, and it can operate stably in the ambient temperature range of -10℃ to 45℃. The Japan Disaster Prevention Research Institute recommends that rescue units should be equipped with models with a waterproof level of IPX4 or above to meet the needs of rainy day rescue.
III. Usage restrictions and technical suggestions
It should be noted that this device is not suitable for the following three scenarios: cutting of hardwood main materials with a diameter of more than 35cm, high-intensity operations for more than 2 hours, and wet material processing with a moisture content of more than 35%. It is recommended that users choose special chains according to the characteristics of wood (such as narrow pitch chains for fine cutting) and use chain lubricants regularly to reduce the friction coefficient.
With the battery energy density exceeding 300Wh/kg, the new generation of lithium-ion chainsaws can match the power output of traditional fuel equipment. When purchasing, consumers should combine the core needs such as wood hardness and operation intensity, choose professional-grade products that have passed UL/CE certification, and give full play to the high efficiency advantages of brushless motor technology.
Copyright 2023 Jiangsu Guangchen Electronic Technology Co., Ltd. All Rights Reserved
China Lithium Power Tools Supplier