21v brushless lithium battery electric chain saw 12-inch handheld medium logging pruning electric chain saw 21V 无刷锂电电链锯 12 寸手持中型伐木修枝电动链锯

1. Product Features

1. This brushless lithium battery chain saw features a high-power brushless motor, with high chain speed and high cutting efficiency, suitable for cutting medium-sized wood with 12-inch guides.
2. No tools required for installation, removal, and adjustment of the knob; chain tensioning and guide plate loading/unloading can be done without auxiliary tools, making on-site operation easy.
3. Equipped with an automatic oil pumping system, the chain is continuously lubricated, reducing the frequency of manual maintenance.
4. Equipped with hand guards and safety locks to prevent accidental activation and debris splashing injuries.
5. Dual handle layout, with a front handle and a rear handle, ensuring more stable cutting when held by both hands.
6. Wireless lithium battery design allows for flexible movement and operation in orchards, forest lands, and outdoor areas.

2. Product Advantages

1. The 12-inch guide plate has a longer cutting range, allowing it to cut thicker wood in one pass and reducing the number of cutting steps.
2. The brushless motor provides ample power, and the cutting resistance is low under high-speed chain operation, ensuring consistent power without degradation during continuous operation.
3. The automatic oil pump continuously lubricates the chain guide plates, reducing dry wear and extending the service life of the components.
4. The dual handle design enhances operational stability, preventing the machine from drifting during cutting of thick wood.
5. No tool required for structural adjustment; the chain tension adjustment can be completed by a single person without needing any additional tools.
6. A fast-disassembly battery structure supports the replacement of spare batteries, making it suitable for long-term field operations.

III. Product Applications

1. Orchard major repair: trimming thick branches on mature fruit trees, cutting small branches.
2. Forestry tending: cutting of timber at diameters between 1.2 cm and 2.0 cm.
3. Wood processing: cutting small pieces of wood, preparing firewood.
4. Outdoor work: campfire wood processing, cutting of firewood in the field.
5. Post-disaster cleanup: removal and cutting of broken trees and fallen branches.
6. Guide plate size is 12 inches, suitable for wood with a cutting diameter of up to 25 cm.

4. Target Audience

1. Large-scale orchard growers, economic tree care personnel.
2. Forestry tending and thinning workers.
3. Landscaping construction workers.
4. Outdoor work, field construction team.
5. Individual wood processing business owner.
6. Farmers' resorts, large-scale tree maintenance staff in farms.

5. Product Attributes

1. Battery voltage: DC 21V
2. Battery capacity: 4.0Ah
3. Motor type: brushless motor
4. Idling speed: 4500 rpm
5. Chain rotation speed: 10.5 m/s
6. Guide plate size: 1.2 inches
7. Lubrication system: Automatic oil pump
8. Adjusting method: Tool-free installation and adjustment
9. Security Configuration: Security lock knob, guard plate
10. Machine net weight: 2.3 kg
11. Battery type: Removable lithium-ion battery pack

6. Usage Instructions

1. Battery installation: Insert the fully charged lithium battery pack into the bottom slot of the device, and confirm it is secured by the locking sound; to remove it, hold the side latch and pull out.
2. Guide plate chain installation: Open the machine cover, insert the chain onto the guide plate and sprocket, adjust the knob to tighten the chain tension, then lock it in place.
3. Check the lubricating oil: Ensure the fuel tank has sufficient fuel, and start the machine for automatic oil distribution.
4. Power-on procedure: Hold the front and rear handles with both hands, pull the trigger to start; once the chain reaches a stable speed, proceed smoothly for cutting.
5. Cutting operation: Proceed at a constant speed in the direction of the wood grain, without applying forced pressure; when encountering a snag, move slowly back and forth, avoid pulling forcefully.
6. Task completed: Release the trigger, remove the battery after the chain stops completely, and clean up the wood chips.

7. Precautions

1. Wear goggles, protective gloves, work pants, and safety helmets during work; loose clothing is prohibited.
2. Do not touch it during operation; clean it only after the machine has completely stopped.
3. Before cutting, ensure that the wood contains no nails, stones, or other foreign objects.
4. Lithium batteries should be kept away from high temperatures and open flames; when not in use, remove them and store in a cool, dry place.
5. Stop the machine for cooling when the fuselage becomes hot during continuous operation.
6. Do not use in humid or rainy conditions.
7. Stored in a location out of reach for children.
8. If the chain becomes loose or there is noise from the device, shut down immediately for maintenance.