Product Description

Item Discription:

We can manufacture various varieties of cultivator tines with scorching die forging procedure,so our merchandise are stronger than casting and stamping areas,now our items have been sold to many european nations around the world and have been warmly welcomed by them,below is our products info:

one,Content:65Mn or some other supplies which buyer asked for.

2,Warmth Treatment:HRC45-50 or some other hardness which buyer asked for.

3,Area therapy:Shot Blasting and then do black portray or some other color painting which client requestd

four,Producttion Tools:630Ton,1000Ton,1600Ton,2500Ton Push.

FAQ:  

one. Are you a legitimate maker?Of course, all products showed in our internet site are produced in our ISO9001:2015 licensed factory We are also a business registered by China Customs with the proper to export and import.  

two. I want to hold our design and style in self confidence can we sign NDA?Sure, to safeguard customers’ revenue is our obligatory obligation, signed NDA would be valid to both of us.. 

three. What should I offer you to get your quotation?Remember to offer you us your in depth info for the item, this kind of as drawings with 2nd/3D by software Pro/E, Vehicle CAD, SolidWorks, UG etc as well as supplies, surface treatment, amount, package. Any specific specifications need to be highlighted specifically for tolerance.  

4.How prolonged does it get to obtain samples?
20 operating days,the lead time is the general creation time period and does not consist of the transportation time.
we can source free samples with less quantity,but consumers need to have to pay out transport price.

5.How lengthy is the production lead time?
Mass Creation:30-forty five working days soon after sample acceptance by yours.The lead time is the basic creation period without the transportation time.
We could make some specific generation arrangement properly if client has urgent require.

6.How lengthy does it consider to ship goods from China by sea?
It requires about 5 weeks to European ports additionally 1 week customs clearance, so you can get the container in 6 to 7 weeks.It normally takes about 2 weeks to east coastline and 3 weeks to west coastline US ports.All sea merchandise are transported from HangZhou Port.

7.How long does it get to ship merchandise from China by air?
It requires about 7 days to all main locations.

eight.What are the payment conditions?
Payment phrases are negotiable and will increase for lengthy phrase clients.During the first phases, we ask for 50% of tooling payment in progress with the equilibrium payable on acceptance of samples.Production orders can be negotiable.We prefer 30% deposit and the balance by T/T just before sails.But at times T/T15 days following sails would also appropriate.

9.New item advancement approach
Obtained tooling order and sample order with 50% deposit—Maintain a meeting with the relation dept.To ensure the developing schedule—Layout mould, fixture and gauge and producing them in our manufacturing facility—mould.fixture and gauge producing—creating samples—authorized from consumer-buying content-forging-warmth treatment-shot blasting-machining-Inspection-bundle—delievry

10.Which nations around the world do you export to?
Now mostly export to U.S.A, Germany, France, Italy, British isles, Brazil, Swedish, Japan, Korea, Middle east of Asia, Thailand and so on.

11.Can we check out the factory to carry out an audit?
Yes, you are welcome to pay a visit to our factory.

12.How to take care of the complains?
–If occur any grievances soon after shipping and delivery,please just demonstrate us images and depth compliants details, we will check out with the production section and QC department Right away and give you ideal resolving solution which agreed by each of us,additionally we will bear all the value (such as shipping price).

All elements are manufactured in accordance to customer’s drawings or samples.If you have any areas to be manufactured, remember to really feel totally free to send your type drawings/samples to us.Specialized drawings like content mark, Product fat, Buy quantity.The extensive info will assist us quickly estimate the accurate and sensible price tag for you.

 

Screw Shaft Types

If you’re looking for a screw shaft, but aren’t sure which type to buy, you’re in luck. In this article, we’ll talk about the different types, including Threaded shank, Round head, and Machined. Once you’ve read it, you’ll know which type to buy. Then, you can decide whether you want a ball screw nut or a threaded shank.

Machined screw shafts

Besides the standard stainless steel shaft, manufacturers also provide a variety of other materials, such as titanium, bronze, and brass. In addition to stainless steel, manufacturers also provide a variety of top-coating options, including zinc, brass, and chromium. Aluminum screws are not particularly durable and are easily affected by weather. Most screw shafts feature self-locking mechanisms. They are especially useful in C-clamps, vises, and screw-top container lids.
For applications where accuracy is vital, a ball screw shaft needs to be annealed. A heat treatment can be performed on the ball screw shaft to ensure that both ends are heated evenly. In this process, the shaft will be more durable, while maintaining its high-precision properties. These screw shafts are a key component in computer-controlled motion-control systems, wire bonding, and other industries that require high-precision and high-quality performance.
Depending on the material used, screw shafts can be made of stainless steel or titanium. High-precision CNC machines and lathes are typically used to manufacture screw shafts. Various shapes and sizes are available, each with a specific application. Whether you need a small or large screw, you can find one to fit your needs. And since each size requires a different material, your choice of material is important as well.
In general, the materials used for machining screw shafts are steel, stainless steel, titanium, brass, bronze, and aluminum. Metals that resist corrosion are also commonly used. Other materials for screw shafts are Teflon, nylon, and nylon. You can also find threaded screw shafts in materials such as porcelain, glass, and ceramic. If you want to use your screws in a unique material, consider purchasing a customized one.

Ball screw nuts

If you have a screw shaft, the last thing you want to worry about is the ball nut slipping off. To prevent this, you can place a temporary stop in the shaft’s grooves to ensure that the ball nut does not slide off. When you remove the stop, you can then install the ball screw nut. But, before you can install the ball screw nut, you have to make sure that you have a good grip on the shaft.
When selecting ball screw nuts, it’s important to consider how much preload you need to apply to avoid excessive backlash. Preloading eliminates this problem by making the ball nut compact. It also prevents backlash, which is lost motion caused by clearance between the ball and nut. Backlash disrupts repeatability and accuracy. This is where spacer preloading comes in. You can insert a spacer between the two ball nuts to transmit the force to the nut. However, you should keep in mind that this method reduces the load capacity of the ball screw.
The critical speed of a screw is the maximum rotating speed before it whips. This critical speed is influenced by several factors, including the diameter of the screw shaft, the number of support elements, and the material. By adjusting these factors, you can reduce the number of components used and the amount of time it takes to assemble the screw shaft. In addition, you can also reduce the number of components and avoid stacking tolerances. However, the critical speed of plastic nuts is limited due to sliding friction.
The ball screw nut has several characteristics that make it unique. Its most prominent feature is the presence of ball bearings. These balls help reduce friction between the screw nut and the shaft. Without ball bearings, the friction would be too high to function properly. Another important characteristic is the groove profile of the nut and ball. These two features ensure that the ball and the nut meet at two points. You’ll be amazed by the results of the work of these ball screw nuts.

Threaded shank

Wood screws are usually not fully threaded because the shank has an unthreaded portion at the top. This shoulder part forces the screw to compress two pieces of wood, which prevents the screw from overheating and compromising the materials strength. As the screw is threaded partially up, it is not as difficult to remove as a fully threaded screw. However, it is important to note that a wood screw will not hold as tightly as one with a fully threaded shank.
In addition to being universal, screw threads can be of different sizes. For example, a M8 screw has a thread pitch of 1.25 mm. To avoid confusion, screw thread pitches are commonly given with a multiplication sign. For example, M8x1 means that the screw is eight mm in diameter but has a thread pitch of one mm per 360-degree rotation. Those who are not familiar with these dimensions may find it confusing.
The OD of the threaded portion of a bolt is generally smaller than the OD of the nut. If the shank is too deep for the nut to fit, the threads may bottom out. This is why it’s important to use a thread-cutting bit with a small thread diameter. You can use a micrometer or caliper to measure the thread diameter. This tool will also allow you to easily identify which screw size fits where and how well.
The metric system is the most widely used. Fasteners with DIN numbers are generally metric in size. This makes them very useful for industrial settings. You can find metric-sized screws anywhere, as long as you buy them from a reputable manufacturer. These fasteners also come with a dog point, which is used for safety wire. If the screw needs to be replaced, the shank can be drilled with a hole for a safety wire or for a dog-point.

Round head

A round head screw is the most common type used for machine screws. Other common types include truss head, flat head, and hexed head. Each has a different profile and are used for different purposes. A round head screw is typically wider than a flat or a hexed head, and has a slightly rounded surface. These screws are useful for projects involving sheet metal or sheet-metal parts. Round heads are usually slightly wider than a hex head screw, and they may also be used as a substitute for washers in certain applications. However, truss heads are not necessary for every project.
A wood screw has a smooth shank that protrudes above the surface of the material it is attaching. A metal screw has a threaded shaft that is fully threaded from head to point, and a fully threaded shaft provides more bite. Two common head styles are round head and pan head. If the task requires the screw to be flush or countersunk, the round head will be the best choice.
Another type is the Reed & Prince screw drive. These are similar to Phillips screws but have a 75-degree V shape. They are commonly used in marine hardware and are also known as BNAE NFL22-070. This type is also used for steel plate hangers. In addition to round head and pan head screws, there are a variety of other screw types. You can even get a head with a slotted head if you know where to look.
Screw diameters are specified according to the ISO 261 or ISO 262 standards. An M8 screw has a diameter of 8.25 mm. The M8 screw has a pitch of 1.25 mm, which is equivalent to one mm per 360 degrees. There are several other standard screw sizes and thread diameters available. You can find them all by consulting the relevant standards. But remember, the metric system is the most popular.

Self-locking mechanism

A self-locking mechanism for a screw shaft is a device that secures the screw to its supporting member in a failure position. The locking mechanism provides a positive connection between the screw shaft and the control surface during normal operation, and locks the screw to its supporting member when the screw fails. Previous attempts to solve this problem have typically used secondary nuts with free play on the screw, which were intentionally designed to jam when loaded. However, such a device can be unreliable, which is why the present invention offers a more robust and reliable locking mechanism.
The self-locking function of a screw depends on several factors, including its pitch angle and the coefficient of friction of the threads. The angle of friction must be less than the tangent of the material pairing to prevent untightening of the screw. Screws with self-locking mechanisms have an efficiency e lower than 50%, which is less than half. Self-locking screws also have the benefit of being less efficient than a standard screw.
Unlike a normal screw, a self-locking screw can be turned in either direction. The nut 22 rotates with the screw shaft, and the member 23 is translated in an axial direction. Regardless of the direction of the rotation of the screw, this axial translation will result in the opposite moment to that input moment. While screw self-locking mechanisms are typically less expensive, they are more reliable and durable.
Another important feature of self-locking screws is that they are not susceptible to independent loosening. The screw cannot rotate without a certain amount of torque. In addition, a self-locking screw shaft must have a small wedge with a smaller half-angle than the arctangent of the static friction. This means that the torque applied by the driver must be greater than the torque needed to overcome the friction.