Founded in 2004 and located in Ningbo city, east seaport of China
T & x Machinery has been committed to providing customers with various OEM products and offering services according to diversified processes like forging,casting and CNC machining.Meanwhile,T&X Machinery pays high attention to its own product research & development.
Why Choose Us?
High quality
Our products are manufactured or executed to very high standards, using the finest materials and manufacturing processes.
Competitive Price
We offering a higher-quality product or service at an equivalent price. As a result we have a growing and loyal customer base.
Rich experience
Our company has many years of production work experience. The concept of customer-oriented and win-win cooperation makes the company more mature and stronger.
Global shipping
Our products support global shipping and the logistics system is complete, so our customers are all over the world.
After-sale service
Professional and thoughtful after -sales team, let you worry about us after -sales Intimate service, strong after -sales team support.
Advanced equipment
A machine, tool or instrument designed with advanced technology and functionality to perform highly specific tasks with greater precision, efficiency and reliability.
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Forged Wear Resistant Earth Preparation CutterMaterial: Grey iron, Alloy steel, Ductile iron. Process: Sand casting,Lost wax casting,Forging
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Sweep Seed Drill PartsMaterial: Grey iron, Alloy steel, Ductile iron. Process: Sand casting,Lost wax casting,Forging
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Tillage ArmsMaterial: Iron steel, carbon steel, Grey iron, Ductile iron. Process: Sand casting, Lost wax casting, Welding
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Cultivator AttachmentsMaterial: Iron steel, carbon steel, Grey iron, Ductile iron. Process: Sand casting, Lost wax casting
A tooth wheel is essentially a wheel having on its periphery a nnmber of projections at equal distances apart, with corresponding indentations or spaces into which the teeth of the correspouding teeth can fit with ease.
What is Disc Harrows ?
A disc harrow is a harrow whose cutting edges are a row of concave metal discs, which may be scalloped or set at an oblique angle. It is an agricultural implement that is used to till the soil where crops are to be planted. It is also used to chop up unwanted weeds or crop residue.
It consists of many carbon steel discs, and sometimes longer-lasting boron steel discs, which have many varying concavities and disc blade sizes and spacing (the choices of the latter being determined by the final result required in a given soil type) and which are arranged into two sections ("offset disc harrow") or four sections ("tandem disc harrow"). When viewed from above, the four sections would appear to form an "X" which has been flattened to be wider than it is tall. The discs are also offset so that they are not parallel with the overall direction of the implement. This arrangement ensures that the discs will repeatedly slice any ground to which they are applied, in order to optimize the result. The concavity of the discs as well as their offset angle causes them to loosen and lift the soil that they cut.
Benefits of Shark Tooth Wheel
Simple design
The simple compact design of shark tooth wheel makes them easy to create, design, and configure. They can fit easily into restricted and tight spaces with few limitations.
Precision and accuracy
This aspect of shark tooth wheel is one of the major reasons for their wide usage. Spur gears increase and decrease speed with exceptional precision and accuracy at a constant velocity.
Gear reliability
It is very unusual and unlikely for a shark tooth wheel to fail during use. Their durability and strength make it next to impossible for them to slip, break, or malfunction.
Production cost
This is another factor that has made shark tooth wheel so indispensable. Their simplicity makes it easier to manufacture them, which greatly decreases their production cost. Large volumes of spur gears can rapidly be produced with little waste.
Efficiency
Efficiency works in conjunction with reliability. During the useful life of a shark tooth wheel system, the gears are able to transfer large amounts of power across several gear trains without any or minimal loss of power.
Straight teeth
The straight teeth of shark tooth wheel eliminates the likelihood of axial thrust since power is transmitted in a straight line at the pitch angle of a spur gear’s teeth.

1.Iron and steel discs and their offset loosen any soil they cut.
2.After loosening the soil, the iron and steel discs of a disc harrow slices the ground over a little bit and also picks up the soil.
3.Digs up the roots of unwanted weeds.
4.Creates a crumbly layer for planting.
5.Protects the soil surface from easy drying.
6.Improves the air and water absorptive capacity of soil.
7.Eliminates any clumps of soil or clay.
8.Improves the microbiological processes in the soil.
9.Improves nutrient availability to feed plants.
10.It shuffles the soil allowing quicker growth of any planted seeds.
Types of Shark Tooth Wheel




Spur gear
Spur gears often operate on parallel shafts. Additionally, this gear runs with a single line of contact between teeth, meaning only one tooth is in contact with another at any given time. Single contact makes spur gears noisier than their similar counterparts, such as the helical gear. Regardless, spur gears are the most common type of gear because of their simplicity and precision.
Helical gear
Helical gears are designed similarly to spur gears and can be used to drive parallel axes or non-parallel/ non-intersecting shafts. Additionally, helical teeth are oriented at an angle, causing multiple teeth to be in contact with another at any given time. This produces a quieter, smoother operation.
Bevel gear
Bevel gears operate on intersecting axes, specifically at 90 degrees. Like helical gears, bevel gear teeth are designed at an angle, causing multiple teeth to be in contact at once. All bevel gears are cone-shaped, but a variety of different bevel gears can be acquired, including: spiral bevel gears, straight bevel gears, and crown bevel gears.
Screw gear
Screw gears resemble bevel gears. However, screw gears operate with a 45 degree twist angle on non-parallel/ non-intersecting shafts. Though important for specific circumstances, screw gears do not have an extensive load carrying capacity.
Worm gear
Worm gears are found in pairs, often comprised of a screw-shaped gear and a circular gear. Worm gears operate smoothly and quietly and produced large amounts of friction. Finally, they are used solely for non-parallel/ non-intersecting axis configurations and ideal for high-shock load applications.
Rack and pinion gear
Rack and pinion gears are also found in pairs, comprised of a cylindrical gear and a gear rack. They are used for parallel axes configurations. Due to their design, rack and pinion gears produce high friction and stress.
Types of Disc Harrows
Disc harrow
It usually consist of set of individually mounted discs arranged in opposite directions, to throw soil in different directions.
01
Offset disc harrow
It can be used in medium and light soil for ploughing. Attached to the tractor it is easily transportable.
02
Heavy duty hydraulic harrow
Heavy Duty Hydraulic Harrow consists of bearing spools for better lubrication and less load on tractor. High quality seals are prevent the bearing and hub from mud and water.
03
Tandem disc harrow
High quality steel discs are compatible to be used in light and medium soil. Quick hitch compatible, it can be used for tillage depth upto 100 - 152 mm.
04

The industry-leading SharkTooth® Wheel features sharp, backward-sloping teeth. Capable of cutting and moving even the toughest residue to improve planting conditions and the ride of the planter row unit, this row cleaner wheel is designed for conventional, minimum till, no-till, and cover crop planting conditions.
Application of Disc Harrows
Soil preparation for cultivation
One of the primary uses disc harrow is to prepare the soil for cultivation. Disc harrow it is particularly useful for breaking up clods of earth, mixing soil and plant residues and leveling the field before sowing. It is ideal for working in heavier, clayier soils that can be difficult to work with other implements.
Disc harrows they are also good for mixing organic fertilizer or compost with the soil. Thanks to this, the soil is better prepared for cultivation, because its fertility increases. Additionally, disc harrow helps to evenly distribute the fertilizer along the field, which contributes to uniform plant growth and optimal yields.
Disc harrow for weed control
With the correct setting disc harrow Young weeds can be effectively removed without disturbing crops. Thanks to the appropriate selection of the working depth of the discs, the weeds are uprooted, which limits their re-growth. Thus, the harrowing process removes weeds from the field surface, which reduces their competition with crop plants for access to nutrients and water.
Mixing crop residues with the soil
Plant residues often remain in the fields after harvest, which can inhibit the growth of new crops. Disc harrow is one of the most effective tools to manage these leftovers. With properly selected settings, it can effectively crush and bury post-harvest residues, accelerating their natural decomposition process. This in turn helps to clear the field, eliminating obstacles for new crops. Shredded plant remains are gradually degraded by soil microorganisms, contributing to the enrichment of the soil with organic material.
Improvement of soil structure
Disc harrow can also be used to improve soil structure. Its action contributes to several beneficial effects that have a positive effect on crops. The first of these results is improved soil drainage. Plates disc harrow they crush and break up clods of earth, creating finer particles. As a result, they facilitate the drainage of excess water from the soil, preventing excessive moisture retention and the formation of muddy areas. Another beneficial effect is the reduction of soil compaction. Working tools penetrate the soil to a certain depth, breaking the soil crust and loosening it. This makes the soil more permeable to water, air and plant roots.
Components of Shark Tooth Wheel
Addendum: The teeth of gears extend outward for external gears and inward for internal gears from the pitch circle. This projection of gears is the radial distance between the pitch diameter and the diameter of the gear, which is referred to as the addendum with the tops of the gear teeth forming the addendum circle.
Axis: The axis controls the direction of gear movement and how that motion is translated. Parallel axes are the most common form of axis where two axes are parallel. With intersecting axes, the axes are perpendicular to each other and are used to change the direction of motion. Although parallel and intersecting are the most common form of axes, there are gears that are not parallel and do not intersect.
Base circle: The base circle is a theoretical construct that is used to generate the involute curve for the creation of tooth profiles.
Dedendum: The dedendum is the depth of a gear tooth between the pitch circle and the minor or inside diameter.
Diametral pitch (DP): The diametral pitch is the ratio of the number of teeth to the pitch diameter. In order for gears to mesh properly, they must have the same diametral pitch. It is expressed in the United States and the United Kingdom as the number of teeth per inch. As the number of teeth per inch increases, the profile of the teeth gets smaller. The larger the DP value, the size of the teeth of a gear get smaller.
Fillet: The gear tooth fillet, also known as the trochoid, is the byproduct of the gear cutting motion and is located just before the cutter tip impression on a gear tooth.
Form diameter: The form diameter is an imaginary circle that is produced by connecting the trochoid or fillet curve of the teeth of a gear, is known as the involute form diameter (TIF) and is less than the base circle diameter.
Gear ratio: The gear ratio indicates how many times a gear must turn for another gear to turn once. It is a direct measurement of the ratio of the rotational speeds of two or more interlocking gears. If the drive gear that is receiving power is bigger than the driven gear, the latter will turn quicker. If taken in reverse and the powered gear is smaller than the driven gear, the former will turn faster.
Pitch circle: The pitch circle defines the size of a gear and needs to be tangent to another gear in order to mesh. It is an imaginary circle that goes through each of the teeth of a gear with a radius that makes it possible to make contact with a similar circle.
Pressure angle: The pressure angle is an angle formed by a line that is tangent to the pitch circle and a normal line to the tooth profile at the pitch circle. It is determined by the tool that is used to form the involute curve of the gear teeth. Standard pressure angles are 14.5o, 20o, and 25o. The pressure angle determines how gears make contact and the amount of force that is distributed along the teeth. For two gears to mesh, they must have the same pressure angle.
Teeth: Teeth of a gear project outward or inward depending on the design of the gear. When they project outward, the teeth on the circumference of the gear are used to transmit rotation. When they are on the inside of the gear, they are referred to as internal gears, which are matched with an external gear and commonly used for planetary gear drives.
Components of Disc Harrows
Disc
Circular concave cutting blades made of steel. It has further two types: Smooth edge disc/plain edge disc and notched edge disc/cut-away discs or scalloped edge discs.
Frame
It is used to hold and support the disc.
Arbor bolt
Heavy steel shaft to mount the disc.
Spool or spacer
Flanged tube mounted on arbour bolet between every two discs used to prevent any lateral movement of the discs and retain their fixed position. Used to keep equal spacing between the discs.
Bumper
Heavy iron plate situated at the end of each gang to counter; it protects the discs from the collision of adjacent discs.
Bearings
It assists the rotation of the gang.
Scraper
Saves disc from clogging, removes the soil from the disks, keeping the concave side of the disk clean.
Transport wheel
In some of disc harrows, transport wheels are provided for transportation purposes.
Disc gang
Assembly of disks mounted on a common arbour bolt with disc spacer, bearing, and bumper.
Weight box
Provided on the main frame of the harrow for bearing additional weight for increasing the penetration of the disc into the soil.
1.Firstly perform the blank with or without gear tooth
2.The Heat Treatment process for the gear blank if it’s required
3.Secondly machining the gear blank to get the appropriate dimensions
4.Finish the preform teeth or produce the gear teeth by machining
5.Harding process for the gear teeth or all gear wheel
6.Thirdly final finishing of the gear teeth(shaving, grinding)
7.Final inspection of the gear wheel

Process of Disc Harrows
Equipment check
1.Before using this farming tool, make sure it’s in good working condition and all its parts are well taken care of and working properly.
2.Ensure that the disc blades are sharp and set to the right depth for cutting.
3.Connect it to the tractor using the right hitch and make sure it’s firmly attached.
Field preparation: Ready, set & succeed
1.Remove any big rocks, debris, or obstacles from the field that could get in the way of the disc harrow while working.
2.If the soil is either too dry or too wet, think about changing the timing of your operation to get the best possible outcomes.
Field condition
1.Before operating the type of harrow, it is crucial to assess the soil condition and moisture content in the field. Operating this tool on soil that is too wet can result in excessive soil clumping and reduced efficiency.
2.Conversely, working on soil that is too dry may lead to ineffective breaking up of the soil. Therefore, it is essential to ensure the soil is at an optimal moisture level to achieve efficient and effective results with it.
Field direction
1.When choosing the direction of your farming paths using this farming implement, consider the way the wind usually blows and the shape of the land.
2.It’s better to work across the wind and slope rather than going parallel to them. This way, you can avoid soil erosion and make your farming efforts more effective.
Depth adjustment following stubble
If there is stubble from the previous crop in the field, make sure to set the disc harrow at the right depth. This way, the harrow can chop up the stubble and mix it into the soil, which helps the leftover plant material break down and makes the soil better.
Safety precautions
1.Always follow safety rules and wear the right safety gear (like gloves, goggles, etc.) when using the disc harrow.
2.Make sure to keep people who are not involved in the work, and other farm workers, far away from the working area. This will help avoid accidents.
Consider the double pass harrowing technique
1.After you finish the first round of working on the field, go over it again, but this time, move in a different direction. For example, if you went north to south in the first round, now go from east to west this time. This way, you cover the whole field from different angles and make sure the soil is well-prepared everywhere.
2.Double-pass or cross-harrowing improves the seedbed for planting crops by making the soil smoother and reducing large clumps. This results in more even seed growth and makes it easier for the plants to take root firmly in the ground.
Straight lines
1.Try to keep the tractor driving in straight lines to ensure a consistent tillage process.
2.Utilise visual markers in the field to assist in keeping the lines straight while driving the tractor.
How to Maintain Shark Tooth Wheel
1.Ensure high performance and prolonged life-time by having your certified specialists verify the condition and tension of the chain, as well as perform the accurate alignment of both chains, ensuring they are level and parallel to each other, which is crucial for optimal lifting and precise tray positioning.
2.Maintain a smooth operation by ensuring an optimal production flow, using skilled and experienced technicians, who know which bearings to change and how to ensure the optimal condition of the tooth wheel, tray carriers and chain rails.
3.Stay prepared for the unexpected by stocking critical spare parts for daily operation, such as bearings, clutch, tooth wheel.
How to Maintain Disc Harrows
1.Always check whether the fasteners are loose before and after the operation, and whether the rotating parts are flexible;
2.The surface of the components of the hydraulic system should always be kept clean, and the two joint surfaces of the quick self-sealing plug should be wrapped in time after separation, so as not to be contaminated;
3.All moving parts should be lubricated frequently;
4.After a working season, the entire disc harrow should be disassembled for maintenance once, and the soil on the machine should be removed;
5.Disassemble the outer spherical ball bearing, replace the lubricant in the bearing, clean the outer spherical surface of the bearing and the inner surface of the bearing seat, and fill it with lubricant during assembly. After assembly, the sealing ring is not allowed to move relative to the outer ring of the bearing;
6.The place where the paint falls off should be filled to prevent rust;
7.After the disc blades are cleaned, they should be coated with antirust agent or engine oil;
8.Double-acting oil cylinders, hoses and quick self-sealing plugs are all disassembled, washed and maintained, and damaged parts are replaced in time, and stored in a clean and dry place indoors;
9.When parking, use wooden boards to pad the disc group, and apply oil to the disc blades to prevent rust. It is best to park indoors.
Things to Consider When Choosing a Disc Harrow
When choosing one, you should consider the following factors:
Soil type: Different soil types require different disc harrow models. For example, if you have heavy clay soil, you may need a heavy-duty disc harrow with large blades.
Field size: The size of your field will determine the size of the disc harrow you need. A larger field requires a larger disc harrow to cover more ground in less time.
Number of discs: The number of discs on the harrow will affect its cutting capacity. More discs mean faster and deeper soil penetration, but also higher cost.
Blade spacing: The spacing between the blades on the disc harrow determines the depth of penetration and the level of soil disturbance. A wider spacing is good for shallow tilling while a narrower spacing is better for deeper tillage.
Blade size: The size of the blades will also affect the level of soil disturbance. Larger blades will penetrate deeper into the soil, while smaller blades will produce finer tilth.
Bearing type: The type of bearings on the disc harrow will determine its durability and maintenance requirements. Sealed bearings are low maintenance, but may require replacement if damaged. Greasable bearings are more durable but require regular maintenance.
Transportability: If you need to move your disc harrow between fields, consider its transportability. Choose a model that can be easily hitched to your tractor and moved around.
Price: Finally, consider the price of the equipment. Choose a model that is within your budget and offers the features you need.
Comparison and Contrast of Power Harrow vs Disc Harrow
Function and purpose
A: Kelly Diamond Harrow is a tool that breaks up large lumps of soil using angled disc blades. These blades can be adjusted to go shallower. It’s usually used after ploughing or to integrate crop residue/stubble into the soil. This harrow cuts and flips the soil around.
B: The main purpose of a power harrow is to facilitate seedbed preparation and even out the soil surface. This tool is commonly employed prior to planting, aiming to establish optimal conditions for seed germination and the development of roots.
Design
A: A disc harrow features a series of circular, concave disc blades mounted on a horizontal shaft. These blades operate by vertically slicing through the soil.
B: It is composed of several groups of rotating tines, which are positioned in a helical or spiral arrangement on a horizontal shaft. These tines effectively dig into the soil, breaking it into smaller particles and thus producing a finer seedbed.
Residue management
A: Able to manage significant volumes of crop residues and assist in efficiently blending them into the soil.
B: On the contrary power harrow can mix leftover plant materials into the soil, but it might not be as good as a disc harrow at handling really big amounts of these materials.
Cost and maintenance
A: Diamond Harrows possess a straightforward design with a reduced number of moving components, typically leading to decreased maintenance expenses.
B: On the other hand, the second type of harrow as discussed above made with a more complicated design, including many parts that move. Due to this, they often need more maintenance, which can be more expensive.
Our Factory
Founded in 2004 and located in Ningbo city, east seaport of China, T & X Machinery has been committed to providing customers with various OEM products and offering services according to diversified processes like forging.casting and CNC machining.


Our Certificate

FAQ
Q: What are disk harrows used for?
Q: What are harrows mainly used for?
Q: What is the difference between a plow and a disc harrow?
Q: How deep does a disc harrow go?
Q: How many types of disc harrow are there?
Q: Which tillage is disk harrow?
Disc Harrow – It is a secondary tillage implement used for seedbed preparation or control weeds, It used in breaking up clods and surface crusts, It further enhances soil granulation and surface uniformity, Disc harrow prevents weed growth and also destroys existing weeds.
Q: How fast should you pull a disc harrow?
Q: What angle is a disc harrow?
Q: Why use a disc harrow?
Q: What is the advantage of disc harrow?
Q: What is the use of the toothed wheel?
Q: What is a wheel with teeth around its edge?
Q: What are the advantages of toothed gearing?
Q: What are gear wheels used for?
Q: What is a tooth wheel?
Q: What is the classification of tooth wheels?
Q: What is the difference between a gear wheel and a sprocket?
Q: What is the toothed gear ratio?
Q: Why do gears have angled teeth?
Q: What is the difference between a cog and a gear?
As one of the most professional agriculture tillage parts manufacturers and suppliers in China, we're featured by durable products and good service. Please rest assured to buy high quality agriculture tillage parts from our factory. Also, customized service is available.
Agriculture Cultivator Points, Tillage Arms, Cultivator Attachments