Product Description

 

Product Description

newest super quality hot sale professional mini hay rotary rake

Guoan rotary rake has 3 functions: raking, spreading and reversing. The rotary hay rake adopts a cam structure with excellent grass collection, and can be reversed by 1 operation switching.

The rotary hay rake can automatically complete the spreading of the pasture, turning it into strips.
The rotary hay rake can spread the crops evenly in the field, which is conducive to the rapid evaporation of water.
The rotary hay rake can also gather crops into strips before baling, so that improve the working efficiency of the baler.

Specifications for hay rakes

Model	9LD-2.5 rotary hay rake	9LD-3.5 rotary hay rake	9LD-4.0 rotary hay rake
Structural type	rotary	rotary	rotary
Working width	2500mm	3500mm	4000mm
No. of tines	12 tines	18 tines	24 tines
Matched power	13-35kw	≥13kw	13-35kw
O.D. dimension	2000*2500*900mm	3200*3500*1000mm	3300*4000*1000mm
Weight	160kg	230kg	245kg
Working speed	6-12km/h	6-12km/h	6-12km/h
Linkage	3-point touched	3-point touched	3-point touched

Product introduction:
1. One machine but 3 functions: tedding, raking, and reversing.
2. The rotary rake can match with 18-50hp tractors.
3. Strong frame provides years of dependable performance.
4. Rotor tilt can be adjusted easily with a convenient crank for maximum crop handling.
5. Torque limiting clutch on the heavy-duty PTO provides overload protection. PTO speed is variable, so you can match ground speed to crop and field conditions.
6. Three wheel-height positions let you adjust for different crops, conditions, and operations.
7. Vertical tines pick up fewer stones and less debris than horizontal tines for cleaner tedding and raking.
8. Cam track adjustment allows you to quickly tailor tedding/raking action to varying crops and conditions without tools.
9. Convenient jack simplifies three-point hitch arrangements.

Other Machines

We also have:
1. Mini net wrap round balers: 850N, 850FN, 870N, 870FN, 1070N, 1070FN, 1090N, 1090FN mini net balers.
2. Mini twine round balers: 850, 850F, 870, 870F, 1070, 1070F, 1090, 1090F mini balers.
3. Bale wrapers: Electric type, Gasoline type and Diesel type for options.
4. 2200 mini Square balers, whose heavy-duty knotters adopt German technology and it has a Dust removal system.

Company Profile

1. With excellent quality, we have been supplying agricultural parts for CZPT and LOVOL for more than 20 years, which is 1 of the biggest agricultural machine companies in China.

2. We are good at making high-quality castings, and 95% machine parts are produced by ourselves. A complete set of quality control system guarantee that our quality of balers must be controlled well.

3. Specializing in the production and export of balers, maintaining the variety of balers diverse, such as mini twine round balers, mini round balers, square balers, large net round balers, and other products to meet different market needs.

4. Customers have a better user experience because of our innovative designs of machines, and we develop 2-3 new products every year to help customers gain more market shares.

Certifications

FAQ

1. How to place an order and pay?
You need to advise the models and quantity of the balers you want to buy, then a proforma invoice with our bank information will be sent to you so that you can pay according to it.

2. There are many unqualified hay rakes in the market, how can you make sure your quality control?  
We have CE, ISO certificates, 30 R&D persons, our hay rakes are produced in strict accordance with international standards.

3. How about your design ability? Do you offer OEM service?  
OEM is acceptable and we offer a confidentiality agreement business secret contract for your design safety.  

4. Do you have other farm machines?
We specialized in round baler machines of 4 models: mini baler 850/small baler 870/middle baler 1070 and large baler 1090. Besides, we also have square baler, large round baler, lawnmower and wrapper.
 
5. Can I place 1 small order for the first time to test the quality?  
Small order(One set) is available, and we offer new customers a 1% discount for the first order and offer free machine parts.  
 

 

The Four Basic Components of a Screw Shaft

There are 4 basic components of a screw shaft: the Head, the Thread angle, and the Threaded shank. These components determine the length, shape, and quality of a screw. Understanding how these components work together can make purchasing screws easier. This article will cover these important factors and more. Once you know these, you can select the right type of screw for your project. If you need help choosing the correct type of screw, contact a qualified screw dealer.

Thread angle

The angle of a thread on a screw shaft is the difference between the 2 sides of the thread. Threads that are unified have a 60 degree angle. Screws have 2 parts: a major diameter, also known as the screw's outside diameter, and a minor diameter, or the screw's root diameter. A screw or nut has a major diameter and a minor diameter. Each has its own angle, but they all have 1 thing in common - the angle of thread is measured perpendicularly to the screw's axis.
The pitch of a screw depends on the helix angle of the thread. In a single-start screw, the lead is equal to the pitch, and the thread angle of a multiple-start screw is based on the number of starts. Alternatively, you can use a square-threaded screw. Its square thread minimizes the contact surface between the nut and the screw, which improves efficiency and performance. A square thread requires fewer motors to transfer the same load, making it a good choice for heavy-duty applications.
A screw thread has 4 components. First, there is the pitch. This is the distance between the top and bottom surface of a nut. This is the distance the thread travels in a full revolution of the screw. Next, there is the pitch surface, which is the imaginary cylinder formed by the average of the crest and root height of each tooth. Next, there is the pitch angle, which is the angle between the pitch surface and the gear axis.

Head

There are 3 types of head for screws: flat, round, and hexagonal. They are used in industrial applications and have a flat outer face and a conical interior. Some varieties have a tamper-resistant pin in the head. These are usually used in the fabrication of bicycle parts. Some are lightweight, and can be easily carried from 1 place to another. This article will explain what each type of head is used for, and how to choose the right 1 for your screw.
The major diameter is the largest diameter of the thread. This is the distance between the crest and the root of the thread. The minor diameter is the smaller diameter and is the distance between the major and minor diameters. The minor diameter is half the major diameter. The major diameter is the upper surface of the thread. The minor diameter corresponds to the lower extreme of the thread. The thread angle is proportional to the distance between the major and minor diameters.
Lead screws are a more affordable option. They are easier to manufacture and less expensive than ball screws. They are also more efficient in vertical applications and low-speed operations. Some types of lead screws are also self-locking, and have a high coefficient of friction. Lead screws also have fewer parts. These types of screw shafts are available in various sizes and shapes. If you're wondering which type of head of screw shaft to buy, this article is for you.

Threaded shank

Wood screws are made up of 2 parts: the head and the shank. The shank is not threaded all the way up. It is only partially threaded and contains the drive. This makes them less likely to overheat. Heads on wood screws include Oval, Round, Hex, Modified Truss, and Flat. Some of these are considered the "top" of the screw.
Screws come in many sizes and thread pitches. An M8 screw has a 1.25-mm thread pitch. The pitch indicates the distance between 2 identical threads. A pitch of 1 is greater than the other. The other is smaller and coarse. In most cases, the pitch of a screw is indicated by the letter M followed by the diameter in millimetres. Unless otherwise stated, the pitch of a screw is greater than its diameter.
Generally, the shank diameter is smaller than the head diameter. A nut with a drilled shank is commonly used. Moreover, a cotter pin nut is similar to a castle nut. Internal threads are usually created using a special tap for very hard metals. This tap must be followed by a regular tap. Slotted machine screws are usually sold packaged with nuts. Lastly, studs are often used in automotive and machine applications.
In general, screws with a metric thread are more difficult to install and remove. Fortunately, there are many different types of screw threads, which make replacing screws a breeze. In addition to these different sizes, many of these screws have safety wire holes to keep them from falling. These are just some of the differences between threaded screw and non-threaded. There are many different types of screw threads, and choosing the right 1 will depend on your needs and your budget.

Point

There are 3 types of screw heads with points: cone, oval, and half-dog. Each point is designed for a particular application, which determines its shape and tip. For screw applications, cone, oval, and half-dog points are common. Full dog points are not common, and they are available in a limited number of sizes and lengths. According to ASTM standards, point penetration contributes as much as 15% of the total holding power of the screw, but a cone-shaped point may be more preferred in some circumstances.
There are several types of set screws, each with its own advantage. Flat-head screws reduce indentation and frequent adjustment. Dog-point screws help maintain a secure grip by securing the collar to the screw shaft. Cup-point set screws, on the other hand, provide a slip-resistant connection. The diameter of a cup-point screw is usually half of its shaft diameter. If the screw is too small, it may slack and cause the screw collar to slip.
The UNF series has a larger area for tensile stress than coarse threads and is less prone to stripping. It's used for external threads, limited engagement, and thinner walls. When using a UNF, always use a standard tap before a specialized tap. For example, a screw with a UNF point is the same size as a type C screw but with a shorter length.

Spacer

A spacer is an insulating material that sits between 2 parts and centers the shaft of a screw or other fastener. Spacers come in different sizes and shapes. Some of them are made of Teflon, which is thin and has a low coefficient of friction. Other materials used for spacers include steel, which is durable and works well in many applications. Plastic spacers are available in various thicknesses, ranging from 4.6 to 8 mm. They're suitable for mounting gears and other items that require less contact surface.
These devices are used for precision fastening applications and are essential fastener accessories. They create clearance gaps between the 2 joined surfaces or components and enable the screw or bolt to be torqued correctly. Here's a quick guide to help you choose the right spacer for the job. There are many different spacers available, and you should never be without one. All you need is a little research and common sense. And once you're satisfied with your purchase, you can make a more informed decision.
A spacer is a component that allows the components to be spaced appropriately along a screw shaft. This tool is used to keep space between 2 objects, such as the spinning wheel and an adjacent metal structure. It also helps ensure that a competition game piece doesn't rub against an adjacent metal structure. In addition to its common use, spacers can be used in many different situations. The next time you need a spacer, remember to check that the hole in your screw is threaded.

Nut

A nut is a simple device used to secure a screw shaft. The nut is fixed on each end of the screw shaft and rotates along its length. The nut is rotated by a motor, usually a stepper motor, which uses beam coupling to accommodate misalignments in the high-speed movement of the screw. Nuts are used to secure screw shafts to machined parts, and also to mount bearings on adapter sleeves and withdrawal sleeves.
There are several types of nut for screw shafts. Some have radial anti-backlash properties, which prevent unwanted radial clearances. In addition, they are designed to compensate for thread wear. Several nut styles are available, including anti-backlash radial nuts, which have a spring that pushes down on the nut's flexible fingers. Axial anti-backlash nuts also provide thread-locking properties.
To install a ball nut, you must first align the tangs of the ball and nut. Then, you must place the adjusting nut on the shaft and tighten it against the spacer and spring washer. Then, you need to lubricate the threads, the ball grooves, and the spring washers. Once you've installed the nut, you can now install the ball screw assembly.
A nut for screw shaft can be made with either a ball or a socket. These types differ from hex nuts in that they don't need end support bearings, and are rigidly mounted at the ends. These screws can also have internal cooling mechanisms to improve rigidity. In this way, they are easier to tension than rotating screws. You can also buy hollow stationary screws for rotator nut assemblies. This type is great for applications requiring high heat and wide temperature changes, but you should be sure to follow the manufacturer's instructions.