Product Description
Product Description
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Process service |
Laser & Punch cutting,CNC bending & Press,Welding & polished,assembly & packing |
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Certification: |
ISO9001, SGS |
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Material |
Aluminum, stainless steel, copper,bronze,iron |
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Surface Treatment |
Anodizing,Polishing,Zinc Plating, Nickel Plating, Chrome Plating, Powder Coating, E-coating,Alodine ,blacken ect |
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Accuracy |
Laser Cutting:+/-0.1mm ; CNC Bending:+/-0.1mm |
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Application |
Equipment/Telecommunication/Vehicle/Furniture,ect |
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Surface |
Free of scratches,good fitness |
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Inspection |
FAIR-First Article Inspection DURPO-During Production Inspection PSI-Pre-shipment Inspection |
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Weight Range |
0.3-100KG |
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Edges&holes |
Smooth |
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Drawing: |
JPEG, PDF, CAD, IGS Accepted |
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Package |
Inner pearl button,outside carton box,or customized |
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Payment: |
30%T/T+70%T/T |
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OEM |
OEM and ODM are welcome |
Detailed Photos
The products shown here is only to present the scope of our business activities.
We can custom according to your drawings or samples.
Certifications
Company Profile
HangZhou Auchung Industrial Co., Ltd was founded in HangZhou since 2003, is dedicated to the R& D, manufacturing and sales of sheet metal products and CNC machining parts.
The precision metal parts and CNC machining parts we produced can meet the requirement in different filed, such as power equipment, medical equipment, communication industry, rail transit equipment industry, new energy series equipment, agricultural machinery, etc. We have 250 staffs including an experienced research and process design team which is more than 30 people. We strive to offer the best quality and service to support your business.
With rich experience of manufacturing, we aim to develop long term relationships with each and every 1 of our customers by delivering quality workmanship, on time and at a competitive cost. Through making customer satisfaction our top priority, we have been CZPT to go from strength to strength.
Our friendly, efficient and professional service and the ability to meet tight delivery deadlines have helped us to build a large customer base, and enabled us to attract business from a wide area.
We offer a wide range of services including
Numerical control machining
Electrical discharge wire cutting service,
Laser cutting
NC stamping
CNC machining
Bending forming process
Laser automatic welding
Surface painting process
Surface blasting
Assembly & Manual Machining
No matter what your project involves, with our fresh, flexible approach and forward thinking we are CZPT to assist customers with requirements that go beyond our standard range of products. Whatever our customers require, we can usually find a way to help achieve their goals.
Our Advantages
Technical Support
Auchung is professional at independent development and design. Our engineers are skilled at AUTO CAD, PRO ENGINEER, SOLID WORKS and other 2D & 3D softwares. We are CZPT to design, develop,produce and deliver your products according to your drawings, samples or just an idea. Dural control of standard products and OEM products.
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We can supply products with follow test reports : |
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1)Chemical composition report |
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2)Tensile strength report |
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3)Brinell hardness report,Rockwell hardness. |
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4)Metallographic structure report |
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5)Key dimensions checking record report |
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6)Full dimension report |
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7)Third-party test report |
Quality Control
1) Checking the raw material after they reach our factory——- Incoming quality control ( IQC)
2) Checking the details before the production line operated
3) Have full inspection and routing inspection during mass production—In process quality control(IPQC)
4) Checking the goods after they are finished—- Final quality control(FQC)
5) Checking the goods after they are finished—–Outgoing quality control(OQC)
Why Choose Us
1) Design assistance and full engineering support .
2) Professional at OEM CNC parts .
3) Complete production lines for custom laser cuting, bending, welding,turning, milling, CNC machining sheet metal fabrication, stamping, bending, argon welding
and surface treatment.
4) Advanced machine tools, CAD/CAM programming software.
5) Prototype machining capabilities.
6) Strict quality control standards with a highly qualified inspection department .
7) Continually upgrading and advancing our equipment to remain competitive .
8) Small quality is also available.
FAQ
Q: What do I need for offering a quote ?
A: Please offer us 2D or 3D drawings (with material, dimension, tolerance, surface treatment and other technical requirement etc.),quantity, application or samples.
Q: What is your MOQ?
A: MOQ depends on our client’s needs, besides,we welcome trial order before mass-production.
Q: What is the production cycle?
A: It varies a lot depending on product dimension,technical requirements and quantity. We always try to meet customers’
requirement by adjusting our workshop schedule.
Q: What kind of payment terms do you accept?
A.: T/T, L/C, Escrow, paypal, western union, moneygram etc.
Q: Is it possible to know how is myproduct going on without visiting your company?
A: We will offer a detailed products schedule and send weekly reports with digital pictures and videos which show the machining progress
Packaging & Shipping
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 1 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 2 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 2 features ensure that the ball and the nut meet at 2 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 2 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 1 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 8 mm in diameter but has a thread pitch of 1 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 1 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.
