1. Overview of Double-sided Planer
1.1 Working Principle
Double-sided planer is a kind of equipment used for wood processing. Its working principle is to plan the wood through the upper and lower knife shafts at the same time, and complete the planing and thickness adjustment of the upper and lower surfaces of the wood at one time. The wood enters from the feed port and is fixed by the clamping device. Then, under the push of the feeding mechanism, it passes smoothly between the upper and lower knife shafts along the guide rail. The upper knife shaft is responsible for planing the upper surface of the wood, and the lower knife shaft processes the lower surface of the wood, so that the upper and lower surfaces of the wood finally meet the required flatness and thickness requirements, and the processed wood is discharged from the discharge port.
This method of simultaneous double-sided processing not only improves the processing efficiency, reduces the time and process of wood processing, but also ensures the consistency of the processing accuracy and surface quality of the upper and lower surfaces of the wood. It has important application value for large-scale wood processing and furniture manufacturing industries.
# 2. Common double-sided planer wood processing thickness range
2.1 Small double-sided planer
Small double-sided planers are mainly used to process smaller-sized wood, and their processing thickness range is relatively narrow. Generally speaking, the minimum planing thickness of a small double-sided planer is usually about 10mm, and the maximum planing thickness generally does not exceed 120mm. For example, the small double-sided planer model MB204E has a maximum planing thickness of 120mm and a minimum planing thickness of 10mm, which can meet the processing needs of some small wood processing companies for thin wood. This planer is suitable for processing wood products such as small furniture parts and decorative wood strips that do not require high thickness.
2.2 Medium-sized double-sided planer
Medium-sized double-sided planers are widely used in the wood processing industry, and their processing thickness range is between small and large double-sided planers. The minimum planing thickness of a medium-sized double-sided planer is generally 10mm, and the maximum planing thickness can reach about 150mm. Taking the MB206E model as an example, its maximum planing thickness is 150mm and the minimum planing thickness is 10mm. This type of planer can adapt to a variety of wood processing scenarios. It can process both thinner and thicker wood. It is suitable for medium-sized furniture manufacturing companies and wood processing workshops, and can meet the needs of producing a variety of thickness specifications of wood, such as medium-sized furniture boards, door and window frames, etc.
2.3 Large double-sided planer
Large double-sided planer is mainly used to process thicker wood, suitable for large-scale wood processing companies and wood deep processing industries. Its minimum planing thickness is usually 10mm, and the maximum planing thickness can reach 200mm or even higher. Large double-sided planer can process thicker logs or large wood boards. For example, in the fields of construction wood processing, large furniture manufacturing, etc., this planer can efficiently process thick wood into the required size and thickness to meet the needs of large wood processing projects.
# 3. Factors affecting the thickness of wood processing
3.1 Planer specifications and performance
The specifications and performance of the planer have a significant impact on the thickness of wood processed by the double-sided planer.
Blade thickness: The blade thickness is generally between 1.5mm and 3.0mm. Thicker blades (such as 3.0mm) have higher strength and rigidity, suitable for processing thicker wood, can withstand greater cutting forces, and reduce deformation and wear of the blade during planing. Thinner blades (such as 1.5mm) are more suitable for processing thinner wood because they can be more flexible for fine planing and reduce planing marks on the wood surface.
Blade material: Common blade materials are high-speed steel (HSS) and carbide (such as tungsten steel). High-speed steel blades have higher hardness and are suitable for processing medium-hard wood. The planing thickness range is generally between 10mm and 100mm. Carbide blades have higher hardness and better wear resistance. They are suitable for processing thicker and harder wood. The planing thickness can reach 100mm to 200mm or even higher.
Blade edge angle: The blade edge angle is usually between 20° and 35°. A smaller edge angle (such as 20°) can provide a sharper cutting edge, which is suitable for processing thinner wood and can reduce tearing and burrs on the wood. Larger cutting edge angles (such as 35°) are more suitable for processing thicker wood because they can provide stronger cutting force and reduce blade wear during planing.
3.2 Wood material and characteristics
The material and characteristics of wood will also affect the processing thickness of the double-sided planer.
Wood hardness: Wood hardness is an important factor affecting planing. Softer wood (such as pine) is relatively easy to plan, and the planing thickness range can be wider, generally between 10mm and 150mm. Harder wood (such as oak and walnut) is more difficult to plan, and the planing thickness range is usually between 10mm and 100mm. Hard wood requires higher cutting force and sharper blades during planing, otherwise it is easy to plan unevenly or the blade wears too quickly.
Wood moisture content: Wood moisture content has a significant impact on planing results. Wood with a higher moisture content (such as more than 15%) is prone to deformation and tearing during planing, and the planing thickness range is generally between 10mm and 80mm. Wood with a lower moisture content (such as 8% to 12%) has a better planing effect, and the planing thickness range can reach 10mm to 150mm. Appropriate moisture content can reduce the deformation of wood during planing and improve planing accuracy.
Wood texture: The direction of wood texture will also affect the planing effect. Planing along the grain wood is smoother, and the planing thickness range is wider, generally between 10mm and 150mm. Planing cross-grain wood is prone to tearing and burrs, and the planing thickness range is usually between 10mm and 80mm. When planing cross-grain wood, it is necessary to properly adjust the blade edge angle and cutting speed to reduce the planing marks on the wood surface.
3.3 Machine tool adjustment accuracy
The adjustment accuracy of the machine tool is crucial to the accuracy of wood processing thickness.
Cutter axis parallelism: The parallelism of the upper and lower knife axes needs to be precisely adjusted, and the error range is generally within 0.05mm. If the knife axes are not parallel, the planing thickness of the upper and lower surfaces of the wood will be inconsistent, affecting the processing accuracy. For example, when the parallelism error of the knife axis exceeds 0.05mm, the thickness difference between the upper and lower surfaces of the wood may reach more than 1mm, seriously affecting the processing quality of the wood.
Blade installation accuracy: The installation position and angle of the blade need to be precisely adjusted, and the error range is generally within 0.02mm. Inaccurate blade installation will lead to uneven planing, and even abnormal contact between the blade and the wood, damaging the blade and the wood. For example, when the blade installation angle error exceeds 0.02mm, obvious planing marks will appear on the surface of the wood after planing, affecting the surface quality of the wood.
Feed speed: The adjustment accuracy of the feed speed will also affect the thickness of the wood processing. The feed speed is generally between 6m/min and 10m/min. A lower feed speed (such as 6m/min) is suitable for processing thicker wood and can ensure the uniformity and accuracy of planing. A higher feed speed (such as 10m/min) is suitable for processing thinner wood, which can improve processing efficiency, but it is necessary to ensure the sharpness of the blade and the stability of the machine tool.
# 4. Summary
As an efficient wood processing equipment, the double-sided planer can process wood of different thicknesses, and its processing thickness range is affected by a combination of multiple factors. Small double-sided planers are mainly suitable for processing wood with a thickness between 10mm and 120mm, which is suitable for small wood processing enterprises and scenarios with thin wood processing needs. The processing thickness range of medium-sized double-sided planers is 10mm to 150mm, which can adapt to more types of wood processing needs and is suitable for medium-sized wood processing enterprises. Large double-sided planers can process wood with a thickness of 10mm to 200mm or even thicker, and are mainly used in large-scale wood processing and wood deep processing industries.
The specifications and performance of the planer have a significant impact on the processing thickness of wood. The thickness, material and edge angle of the blade determine the range of wood thickness suitable for processing. Thicker blades, carbide blades and blades with larger edge angles are more suitable for processing thicker wood. The material and characteristics of the wood will also affect the processing thickness of the double-sided planer. Softer wood and wood with moderate moisture content have a wider planing thickness range, while harder wood and wood with higher moisture content have a relatively narrow planing thickness range. The direction of wood grain will also affect the planing effect. The planing thickness range of wood along the grain is wider, and the planing thickness range of wood across the grain is narrower.
The adjustment accuracy of the machine tool is crucial to the accuracy of wood processing thickness. The precise adjustment of the parallelism of the knife axis, the installation accuracy of the blade and the feed speed can ensure the consistency of the planing thickness and processing accuracy of the upper and lower surfaces of the wood. In practical applications, it is necessary to comprehensively consider factors such as the planer specifications, wood characteristics and machine tool adjustment accuracy to ensure that the double-sided planer can efficiently and accurately process the required thickness of wood to meet the needs of different wood processing scenarios.
Post time: Feb-12-2025