Product Description

Auro Threads is kind of thread which can lift the loose skin and is a thread can be used in non-invasive cosmetic. Imbedding the absorbable suture under the skin to lift it and to incent the growth of collagens. This treatment is featured with high safety, adjustability, short-term response. Once the thread is absorbed, the collagens starts to grow and this will be last 2 years at most. With this advantage, it will promote more collagens, angiogenesis, blood circulation, skin reproducing and tighten and lift and improve the skin.
Auro Threads are made of materials which will dissolve after a certain period of time.

Auro Threads are made of materials which will dissolve after a certain period of time.
Materials like Poly-P-dioxanone PDO ,PCL, Poly-L-Lactic Acid (PLA/ PLLA) are colourless, crystalline, biodegradable synthetic polymer used mainly for biomedical applications.
Auro Thread Lift is the latest and revolutionary treatment for skin tightening and lifting as well as V-line lifting.It is made of PDO (Polydioxanone) material so naturally absorb in the skin and continuously stimulate collagen
aynthesis.

Many designs and types are available such as: Barbed, Mono,Screw Cog, Cone, Spiral, Tornado ,Mesh Thread ,double needle thread and etc.

PDO (Polydioxanone) dissolves after 6-9 months
PLLA (Poly L Lactic Acid) dissolves after 12-18 months
PCL (Polycaprolactone) dissolves after 24- 36 months.

PDO (Polydioxanone) thread is a thread with no cones, thus no damage to the tissue. This has been widely used in medicine as subcutaneous sutures, and thus it is very safe.It is effective in self-stimulation of cell to create collagen and elastic. It will be fully dissolved in the body. This is biodegradable, biocompatible, safe and dissolved in the body.
The procedure is suitable for most people from 25 onwards, when the effects of ageing become apparent. Ageing causes the skin tissue to thin because the collagen and elastin fibre break down, which results in sagging skin, deep creases, folds and wrinkles. PDO threads reverse the effects of ageing and improve the quality of skin.

If the patient does not want to have a face lift surgery, thread lift can be a very effective alternative. Threads are implanted into the sub-dermal skin and stimulate the production of collagen and the skin becomes firmer, elastic and moisturised. The thread dissolves itself in few months but the effect lasts longer than the regular dermal filler. The procedure is very simple, safe and almost painless
Characteristics
Instant Skin Lifting through mechanical effects
Cellular Renewal
Collagen stimulation neovascularization to improve skin texture, fine lines and elasticity
Skin Tightening, by contracting fat tissue

Screw is used to make collagen, and Cog is used to improve, because there is barbs, which can fix the skin level well. Generally speaking, the duration of Cog in the body will be 2-4 months longer than that of Mono and Screw.

For customzied service, such as more models and sizes of PDO thread, PCL thread, 
PLLA thread, package customization, etc, please contact us.

Q: What is the MOQ ? Can I mix with different models?

A: MOQ is only 1 pack! You can mix with different models.

Q: Is the Auro PDO thread safe?

A: A large number of old customers are enough to prove it is safe.

Q: How long does the effect of Auro PDO thread last?

A: The thread can be absorbed by the body for about 6-8 months,the effect is sustainable for about 2 years

Q: Can I pay by credit card?

A: Certainly.

Q: When will you arrange the dispatch once I paid you?

A: Shipped in 3 days after payment .

Q: Which courier or agent do you use?

A: sually, we use DHL, EMS, FED, UPS, TNT some international courier.

Q: How long can we receive the PDO thread?

A: About 3-10 days. But about 10-20 days by ePacket.

We are the professional manufacturer of Auro Thread We have done this business for more than 10 years and There are
Four types of products can be Choosed, PDO Thread,PCL Thread and PLLA Thread. These Four products make it possible to quickly and 
effectively meet the vast majority of patient’s needs for correction and augmentation of wrinkle and folds.
We can make sure the good quality and we have experience to send the goods.
I have confident you will love our product.
Any question,please feel free to contact me. 
Looking forward to the cooperation with you soon.

We can provide you 365 days of service
We can provide you good quality products
We can solve your questions about the product
We can provide you a variety of payment methods
We can provide you a variety of modes of transport
We can track your cargo transport until you receive it 
We can provide you the most reasonable price
We can provide you the best after-sales service

Screw Shaft Features Explained

When choosing the screw shaft for your application, you should consider the features of the screws: threads, lead, pitch, helix angle, and more. You may be wondering what these features mean and how they affect the screw’s performance. This article explains the differences between these factors. The following are the features that affect the performance of screws and their properties. You can use these to make an informed decision and purchase the right screw. You can learn more about these features by reading the following articles.

Threads

The major diameter of a screw thread is the larger of the 2 extreme diameters. The major diameter of a screw is also known as the outside diameter. This dimension can’t be directly measured, but can be determined by measuring the distance between adjacent sides of the thread. In addition, the mean area of a screw thread is known as the pitch. The diameter of the thread and pitch line are directly proportional to the overall size of the screw.
The threads are classified by the diameter and pitch. The major diameter of a screw shaft has the largest number of threads; the smaller diameter is called the minor diameter. The thread angle, also known as the helix angle, is measured perpendicular to the axis of the screw. The major diameter is the largest part of the screw; the minor diameter is the lower end of the screw. The thread angle is the half distance between the major and minor diameters. The minor diameter is the outer surface of the screw, while the top surface corresponds to the major diameter.
The pitch is measured at the crest of a thread. In other words, a 16-pitch thread has a diameter of 1 sixteenth of the screw shaft’s diameter. The actual diameter is 0.03125 inches. Moreover, a large number of manufacturers use this measurement to determine the thread pitch. The pitch diameter is a critical factor in successful mating of male and female threads. So, when determining the pitch diameter, you need to check the thread pitch plate of a screw.

Lead

In screw shaft applications, a solid, corrosion-resistant material is an important requirement. Lead screws are a robust choice, which ensure shaft direction accuracy. This material is widely used in lathes and measuring instruments. They have black oxide coatings and are suited for environments where rusting is not acceptable. These screws are also relatively inexpensive. Here are some advantages of lead screws. They are highly durable, cost-effective, and offer high reliability.
A lead screw system may have multiple starts, or threads that run parallel to each other. The lead is the distance the nut travels along the shaft during a single revolution. The smaller the lead, the tighter the thread. The lead can also be expressed as the pitch, which is the distance between adjacent thread crests or troughs. A lead screw has a smaller pitch than a nut, and the smaller the lead, the greater its linear speed.
When choosing lead screws, the critical speed is the maximum number of revolutions per minute. This is determined by the minor diameter of the shaft and its length. The critical speed should never be exceeded or the lead will become distorted or cracked. The recommended operational speed is around 80 percent of the evaluated critical speed. Moreover, the lead screw must be properly aligned to avoid excessive vibrations. In addition, the screw pitch must be within the design tolerance of the shaft.

Pitch

The pitch of a screw shaft can be viewed as the distance between the crest of a thread and the surface where the threads meet. In mathematics, the pitch is equivalent to the length of 1 wavelength. The pitch of a screw shaft also relates to the diameter of the threads. In the following, the pitch of a screw is explained. It is important to note that the pitch of a screw is not a metric measurement. In the following, we will define the 2 terms and discuss how they relate to 1 another.
A screw’s pitch is not the same in all countries. The United Kingdom, Canada, and the United States have standardized screw threads according to the UN system. Therefore, there is a need to specify the pitch of a screw shaft when a screw is being manufactured. The standardization of pitch and diameter has also reduced the cost of screw manufacturing. Nevertheless, screw threads are still expensive. The United Kingdom, Canada, and the United States have introduced a system for the calculation of screw pitch.
The pitch of a lead screw is the same as that of a lead screw. The diameter is 0.25 inches and the circumference is 0.79 inches. When calculating the mechanical advantage of a screw, divide the diameter by its pitch. The larger the pitch, the more threads the screw has, increasing its critical speed and stiffness. The pitch of a screw shaft is also proportional to the number of starts in the shaft.

Helix angle

The helix angle of a screw shaft is the angle formed between the circumference of the cylinder and its helix. Both of these angles must be equal to 90 degrees. The larger the lead angle, the smaller the helix angle. Some reference materials refer to angle B as the helix angle. However, the actual angle is derived from calculating the screw geometry. Read on for more information. Listed below are some of the differences between helix angles and lead angles.
High helix screws have a long lead. This length reduces the number of effective turns of the screw. Because of this, fine pitch screws are usually used for small movements. A typical example is a 16-mm x 5-inch screw. Another example of a fine pitch screw is a 12x2mm screw. It is used for small moves. This type of screw has a lower lead angle than a high-helix screw.
A screw’s helix angle refers to the relative angle of the flight of the helix to the plane of the screw axis. While screw helix angles are not often altered from the standard square pitch, they can have an effect on processing. Changing the helix angle is more common in two-stage screws, special mixing screws, and metering screws. When a screw is designed for this function, it should be able to handle the materials it is made of.

Size

The diameter of a screw is its diameter, measured from the head to the shaft. Screw diameters are standardized by the American Society of Mechanical Engineers. The diameters of screws range from 3/50 inches to 16 inches, and more recently, fractions of an inch have been added. However, shaft diameters may vary depending on the job, so it is important to know the right size for the job. The size chart below shows the common sizes for screws.
Screws are generally referred to by their gauge, which is the major diameter. Screws with a major diameter less than a quarter of an inch are usually labeled as #0 to #14 and larger screws are labeled as sizes in fractions of an inch. There are also decimal equivalents of each screw size. These measurements will help you choose the correct size for your project. The screws with the smaller diameters were not tested.
In the previous section, we described the different shaft sizes and their specifications. These screw sizes are usually indicated by fractions of an inch, followed by a number of threads per inch. For example, a ten-inch screw has a shaft size of 2” with a thread pitch of 1/4″, and it has a diameter of 2 inches. This screw is welded to a two-inch Sch. 40 pipe. Alternatively, it can be welded to a 9-inch O.A.L. pipe.

Shape

Screws come in a wide variety of sizes and shapes, from the size of a quarter to the diameter of a U.S. quarter. Screws’ main function is to hold objects together and to translate torque into linear force. The shape of a screw shaft, if it is round, is the primary characteristic used to define its use. The following chart shows how the screw shaft differs from a quarter:
The shape of a screw shaft is determined by 2 features: its major diameter, or distance from the outer edge of the thread on 1 side to the inner smooth surface of the shaft. These are generally 2 to 16 millimeters in diameter. Screw shafts can have either a fully threaded shank or a half-threaded shank, with the latter providing better stability. Regardless of whether the screw shaft is round or domed, it is important to understand the different characteristics of a screw before attempting to install it into a project.
The screw shaft’s diameter is also important to its application. The ball circle diameter refers to the distance between the center of 2 opposite balls in contact with the grooves. The root diameter, on the other hand, refers to the distance between the bottommost grooves of the screw shaft. These are the 2 main measurements that define the screw’s overall size. Pitch and nominal diameter are important measurements for a screw’s performance in a particular application.

Lubrication

In most cases, lubrication of a screw shaft is accomplished with grease. Grease is made up of mineral or synthetic oil, thickening agent, and additives. The thickening agent can be a variety of different substances, including lithium, bentonite, aluminum, and barium complexes. A common classification for lubricating grease is NLGI Grade. While this may not be necessary when specifying the type of grease to use for a particular application, it is a useful qualitative measure.
When selecting a lubricant for a screw shaft, the operating temperature and the speed of the shaft determine the type of oil to use. Too much oil can result in heat buildup, while too little can lead to excessive wear and friction. The proper lubrication of a screw shaft directly affects the temperature rise of a ball screw, and the life of the assembly. To ensure the proper lubrication, follow the guidelines below.
Ideally, a low lubrication level is appropriate for medium-sized feed stuff factories. High lubrication level is appropriate for larger feed stuff factories. However, in low-speed applications, the lubrication level should be sufficiently high to ensure that the screws run freely. This is the only way to reduce friction and ensure the longest life possible. Lubrication of screw shafts is an important consideration for any screw.