Disc Harrow

The main structure of the disc harrow includes a high-strength main frame, disc blade group, disc gang, angle adjuster, suspension, hydraulic system, transmission system, wheel, etc. The disc blade group consists of disc blades, intermediate pipes, square shafts, bearings, and scrapers. 

• The function of the disc frame is to install the disc blade group and the angle regulator.
• The disc blade group is worn on the square shaft to form a hole, it is connected with the disc frame through bearings, and the middle of the disc blades on the same shaft is separated by an interval tube.
• The function of the angle adjuster is to adjust the deflection angle of the harrowing group, thereby changing the depth of the harrow. There are many kinds of angle adjusters, and the angle adjuster of the disc harrow belongs to the pressing plate type. In addition, there are gear plate types, screw types, manual types, hydraulic types, and so on.
• The hitch device connects the disc harrow and the tractor, trailed for heavy-duty disc harrows and three-point linked for lightweight ones.
• The function of the scraper is to scrape off the soil adhered to the disc blades to prevent the disc blades from being stained with too much soil when the disc harrow is working so that the disc harrow can work normally.

The working process of disc harrow is when the disc harrow is working, the cutting edge plane of the disc blade is perpendicular to the ground for operation, but the entire disc group and the forward direction of the machine have an offset angle, that is to say, the harrowing group on the same disc gang and the forward movement of the device is at an angle, but the blade plane of the harrow is perpendicular to the ground. The disc harrow advances under the action of traction. It relies on gravity to make the disc blade cut into the soil and on traction to roll forward. When the disc blades roll forward, their motion can be seen as a combination of rolling and moving.

Types of disc harrows： There are many types of disc harrows, and there are different types according to different classification methods:

According to the diameter of disc harrow blades, there are mainly the following three types:

• Heavy-duty disc harrow: the diameter of the disc harrow is 660 mm. This type of disc harrow is mainly used for relatively sticky soil, and the working depth can reach 18 cm. 
• Light-weight disc harrow: the diameter of the harrow blade is 460 mm, which is used for sandy loam or soft soil that is not too sticky, and the working depth is about 10 cm; 
• Medium-sized disc harrow: the diameter of the harrow blade is 560 mm, It is generally used on ordinary soil, and its working depth is between the heavy disc harrow and the light disc harrow.

According to how the unit is connected, it can be divided into three types: trailed, mounted, and semi-mounted. In general, most heavy-duty disc harrows are trailed type, and there are also semi-mounted ones, while most light and medium-duty disc harrows are mounted type.

According to the placements of disc groups: disc harrows can be divided into single-row disc harrows and double-row disc harrows, and double-row harrows can be divided into two types: opposed type(tandem) and offset type, according to the configuration of disc blade groups.

Advantages of using disc harrows:

• Improved soil structure: Disc harrows can help to break up compacted soil and create a more porous, friable structure that is better able to support plant growth.
• Better weed control: By turning over the top layer of soil and disrupting the root systems of weeds, disc harrows can help to reduce the presence of weeds in a field.
• Increased efficiency: Disc harrows can cover a wide area quickly, allowing farmers to prepare larger areas of land for planting in a shorter amount of time.
• Reduced soil erosion: By loosening and breaking up the top layer of soil, disc harrows can help to reduce the risk of erosion and runoff, protecting the soil and maintaining its fertility.
• Improved crop yields: By creating a better growing environment for crops, disc harrows can help to increase crop yields and improve overall agricultural productivity.

We have all kinds of disc harrows for sale; solid boron steel disc blades has been used. Please get in touch with us for more information if you have any queries.