Product Description
Machined CNC Anodized Aluminum Dowel Pins Screws Shoulder Dowel Pin
| Product Name | internal threaded CZPT pins |
| Available Material | 1.;Stainless Steel:; SS201,; SS303,; SS304,; SS316,; SS416,; SS420,;etc.; |
| 2.;Steel:;C45(K1045);,; C46(K1046);,;C20,;etc | |
| 3.; Brass:;C36000 ( C26800);,; C37700 ( HPb59);,; C38500( HPb58);,; C27200CuZn37);,; C28000(CuZn40);,;etc.; | |
| 4.;Bronze:; C51000,; C52100,; C54400,; etc.; | |
| 5.; Iron:; 1213,; 12L14,;1215,;etc.; | |
| 6.; Aluminum:; Al6061,; Al6063,; etc.; | |
| 7.; Carbon steel:;AISI1006,;AISI1571,;AISI1571,;etc.; | |
| 8.;Alloy steel:; SCM435,;10B21,;etc.; | |
| Grade | 4.;8,;5.;6,;6.;8,; 8.;8,; 10.;9,; 12.;9,; A2-70,; A480 |
| Standard | ANSI / BS / DIN / GB / ISO / JIS / BSW |
| Drive Type | Word/Triangle/Interior Angles Quarter/Cross/M Word/Flower/Cinquefoil/Flower Word/Hexagon/Special Shap |
| Head Type | Pan/Hex/Truss/Oval/Wafer/ Countersunk,;etc |
| Surface Treatment | Zn-plated,;ni-plated,;tin-plated,;chrome plated,;passivated,;sandblast and anodize,;chromate,;polish,;electro painting,;black anodize,;plain,;H.;D.;G,;etc.; |
| Certificate | ISO9001:;2015/SGS/ROSH/IATF16949:;2016 |
| Heat Treatment | Tempering,;Hardening,;Spheroidizing,;Stress Relieving.; |
| Application | Mechanical equipment,;tele-communications equipments,;robot,;computer cases and cabinet,;electrical appliances |
| Quality Control and Detection Equipment | Our QC department work is inspection and final inspection.; We promise you as below:; |
| 1.; Check the raw material before the production.; | |
| 2.; Have inspection during the production.; | |
| 3.; Make 100% inspection before the shipment.; | |
| Coordinate Measuring Machine,; Calipers,; Microscope,; Micrometer,;DEM,; Height Meter and 00 Level Marbel Panel,; Ring Gauge,; Three Pin,; Thread Gauge.; | |
| Drawing Format | Pdf/JPEG/Ai/Psd/CAD/Dwg/Step/Igs |
| Machining Equipment | Cold Forging Machine,; Thread Rolling Machine,; 4-axis CNC Machining Center,; CNC Lathe,; High Speed Electric Spark Puncher,; Milling Machine ,;Grinding Machine,; CNC Lathes ,; Wire-cuts,; Laser Cuts ,; CNC Shearing Machines ,;CNC Bending Machines,; etc.; |
| Packaging | PP Ploybags + Standard Carton + Wooden Pallet |
| Delivery Methods | DHL,;EMS,;UPS or Fedex (fast and safer); |
| Payment Term | L/C,; T/T,; Escow,; Paypal,; Western Union,; Cash |
| Delivery time | Within 15-20 workdays after deposit or payment received |
| Shipping Port | HangZhou,; HangZhou |
Product Details Show
COMPANY BRIEFS
HangZhou Wanjin Hardware Products Co.;,; Ltd.; is specialized in non-standard parts manufacturer,; which is located in HangZhou City,; ZheJiang Province,; China.; Our products include long screws,; long bolts,; CNC lathe parts,; non-standard fasteners,; special screws and bolt,; rivets,;pins,; wrench,; hex key stamping parts,; etc.; the company’s major customer areas include new energy,; automotive,; motor mechanical and electrical,; sports equipment,; Mechanical equipment,; baby products,; household appliances,; furniture,; electronic products.;
we have a complete and scientific quality management system.; and our company has strong technical force with CNC milling compound processing equipment and advanced cold pier equipment.; With upholding the responsibility,; integrity,; enterprising,; rigorous business philosophy,; our product quality and production capacity are widely recognized in the Chinese market.; At present,;we cooperate with numbers of export fastener traders to provide high-quality non-standard custom products.; According to customers’ drawings,; we provide products to meet their needs.;
Our company has passed the quality system authentication of ISO9001:;2015 and IATF16949:;2016.;
We warmly welcome friends from all walks of life to visit our company for business negotiation and guidance.; Interested buyers are welcomed to contact us.;
Equipment Exhibition:;
Our main equipments contained:; CNC milling compound processing equipment,; advanced cold pier equipment,; 2 sets of lengthen 3 die 6 rushed punching machines,;3 sets of 2 die 4 rushed punching machines,; 2 sets of endless cold pier machines,; 3 sets of lengthen 1 dietwo punching heading machines,; 2 sets of riveting machines (the maximum production length is 2000MM,; the maximum diameter is 116MM.;);
Company Advantages:;
1.; We are a professinoal fastener parts manufacturer with over 11 years of rich experience in designing and producing all kinds of fasteners.;
2.; Big production capacity,; fast delivery.;
3.; Strict QC inspecting rules:; all products must be 100% inspected before delivery.;
4.; OEM/ODM services are available
5.; 24 hours online service.;
6.; Prompt quotation for your inquiry
7.; Quality,;reliability and long product life.;
8.; Professional manufacturer offers competitive price.;
9.; Pass SGS9001:;2015 and IATF16949:;2016 Certification.;
10.; Diversified rich experienced skilled workers.;
OUR SERVICE:;
1.; 100% manufacturer
Our factory is in Qingxi town,; HangZhoucity,;ZheJiang province,;China with 100 staffs who is with best creditability,; reliability at your absolute promise .; We have many years production experience and export experience.;
2.; Best material selection.;
All our goods are made of best materials from the best suppliers .;
3.; Good service
We definitely produce all goods by ourselves .; It is the top service from wire rods feeding,; coating,;wire drawing,; forming,;threading,;passivating,;inspection,;packaging,;delivery,; therefore quality is 100% assured .;
4.; Quality control
Every single piece of product,; every production procedure is inspected and controlled before packing the goods into export carton.;
We ensure every of product shipped are of good quality.;
5.; After sales service provided
Besides,; after sales service is necessary for more understanding for your needs.; We do keep a close concern
FAQ:;
Q1:;Are you a manufacture or trading company?
A:; We are a professional hardware manufacturer.;But,; we have the right to do the import & export business.;
Actually,; we have this experience for many years.;
Q1:;Are you a manufacture or trading company?
A:; We are a professional hardware manufacturer.;But,; we have the right to do the import & export business.;
Actually,; we have this experience for many years.;
Q2:;What kind of products do you produce?
A:; We specializes in producing a variety of standard,; non-standard screws,; bolts,; nuts and CNC lathe parts.;
Q3:;What kind of material do you usually use?
A:;We using carbon steels(low and medium carbon,; alloy steels);,;stainless steel and brass.;
Q4:;Do you support customized products?
A:;Sure,; we can produce the customized products per your drawings and other requirements.;
Q5:;Can we print out own logo?
A:;Yes,; we can make it according to your request.;
Q6:;Can you provide samples?
A:;For our regular products,; we offer free samples.;
For customized bolts,; tooling and proofing charges need.; All free samples not including its courier charge.;
Q7:;How to ensure that every process’s quality?
A:; We implement strict ISO quality control,; and have 8 steps checking in production .;
We have our in-house QC daily and hire third party for randomly inspection.;
Q8:;What is the lead time of the product?
A:;Generally 30-50 days after the deposit.;
Q9:;How about the trading term and payment term?
A:;We can discuss this individually.;
Lead Screws and Clamp Style Collars
If you have a lead screw, you’re probably interested in learning about the Acme thread on this type of shaft. You might also be interested in finding out about the Clamp style collars and Ball screw nut. But before you buy a new screw, make sure you understand what the terminology means. Here are some examples of screw shafts:
Acme thread
The standard ACME thread on a screw shaft is made of a metal that is resistant to corrosion and wear. It is used in a variety of applications. An Acme thread is available in a variety of sizes and styles. General purpose Acme threads are not designed to handle external radial loads and are supported by a shaft bearing and linear guide. Their design is intended to minimize the risk of flank wedging, which can cause friction forces and wear. The Centralizing Acme thread standard caters to applications without radial support and allows the thread to come into contact before its flanks are exposed to radial loads.
The ACME thread was first developed in 1894 for machine tools. While the acme lead screw is still the most popular screw in the US, European machines use the Trapezoidal Thread (Metric Acme). The acme thread is a stronger and more resilient alternative to square threads. It is also easier to cut than square threads and can be cut by using a single-point threading die.
Similarly to the internal threads, the metric versions of Acme are similar to their American counterparts. The only difference is that the metric threads are generally wider and are used more frequently in industrial settings. However, the metric-based screw threads are more common than their American counterparts worldwide. In addition, the Acme thread on screw shafts is used most often on external gears. But there is still a small minority of screw shafts that are made with a metric thread.
ACME screws provide a variety of advantages to users, including self-lubrication and reduced wear and tear. They are also ideal for vertical applications, where a reduced frictional force is required. In addition, ACME screws are highly resistant to back-drive and minimize the risk of backlash. Furthermore, they can be easily checked with readily available thread gauges. So, if you’re looking for a quality ACME screw for your next industrial project, look no further than ACME.
Lead screw coatings
The properties of lead screw materials affect their efficiency. These materials have high anti-corrosion, thermal resistance, and self-lubrication properties, which eliminates the need for lubrication. These coating materials include polytetrafluoroethylene (PFE), polyether ether ketone (PEK), and Vespel. Other desirable properties include high tensile strength, corrosion resistance, and rigidity.
The most common materials for lead screws are carbon steel, stainless steel, and aluminum. Lead screw coatings can be PTFE-based to withstand harsh environments and remove oil and grease. In addition to preventing corrosion, lead screw coatings improve the life of polymer parts. Lead screw assembly manufacturers offer a variety of customization options for their lead screw, including custom-molded nuts, thread forms, and nut bodies.
Lead screws are typically measured in rpm, or revolutions per minute. The PV curve represents the inverse relationship between contact surface pressure and sliding velocity. This value is affected by the material used in the construction of the screw, lubrication conditions, and end fixity. The critical speed of lead screws is determined by their length and minor diameter. End fixity refers to the support for the screw and affects its rigidity and critical speed.
The primary purpose of lead screws is to enable smooth movement. To achieve this, lead screws are usually preloaded with axial load, enabling consistent contact between a screw’s filets and nuts. Lead screws are often used in linear motion control systems and feature a large area of sliding contact between male and female threads. Lead screws can be manually operated or mortised and are available in a variety of sizes and materials. The materials used for lead screws include stainless steel and bronze, which are often protected by a PTFE type coating.
These screws are made of various materials, including stainless steel, bronze, and various plastics. They are also made to meet specific requirements for environmental conditions. In addition to lead screws, they can be made of stainless steel, aluminum, and carbon steel. Surface coatings can improve the screw’s corrosion resistance, while making it more wear resistant in tough environments. A screw that is coated with PTFE will maintain its anti-corrosion properties even in tough environments.
Clamp style collars
The screw shaft clamp style collar is a basic machine component, which is attached to the shaft via multiple screws. These collars act as mechanical stops, load bearing faces, or load transfer points. Their simple design makes them easy to install. This article will discuss the pros and cons of this style of collar. Let’s look at what you need to know before choosing a screw shaft clamp style collar. Here are some things to keep in mind.
Clamp-style shaft collars are a versatile mounting option for shafts. They have a recessed screw that fully engages the thread for secure locking. Screw shaft clamp collars come in different styles and can be used in both drive and power transmission applications. Listed below are the main differences between these 2 styles of collars. They are compatible with all types of shafts and are able to handle axial loads of up to 5500 pounds.
Clamp-style shaft collars are designed to prevent the screw from accidentally damaging the shaft when tightened. They can be tightened with a set screw to counteract the initial clamping force and prevent the shaft from coming loose. However, when tightening the screw, you should use a torque wrench. Using a set screw to tighten a screw shaft collar can cause it to warp and reduce the surface area that contacts the shaft.
Another key advantage to Clamp-style shaft collars is that they are easy to install. Clamp-style collars are available in one-piece and two-piece designs. These collars lock around the shaft and are easy to remove and install. They are ideal for virtually any shaft and can be installed without removing any components. This type of collar is also recommended for those who work on machines with sensitive components. However, be aware that the higher the OD, the more difficult it is to install and remove the collar.
Screw shaft clamp style collars are usually one-piece. A two-piece collar is easier to install than a one-piece one. The two-piece collars provide a more effective clamping force, as they use the full seating torque. Two-piece collars have the added benefit of being easy to install because they require no tools to install. You can disassemble one-piece collars before installing a two-piece collar.
Ball screw nut
The proper installation of a ball screw nut requires that the nut be installed on the center of the screw shaft. The return tubes of the ball nut must be oriented upward so that the ball nut will not overtravel. The adjusting nut must be tightened against a spacer or spring washer, then the nut is placed on the screw shaft. The nut should be rotated several times in both directions to ensure that it is centered.
Ball screw nuts are typically manufactured with a wide range of preloads. Large preloads are used to increase the rigidity of a ball screw assembly and prevent backlash, the lost motion caused by a clearance between the ball and nut. Using a large amount of preload can lead to excessive heat generation. The most common preload for ball screw nuts is 1 to 3%. This is usually more than enough to prevent backlash, but a higher preload will increase torque requirements.
The diameter of a ball screw is measured from its center, called the ball circle diameter. This diameter represents the distance a ball will travel during 1 rotation of the screw shaft. A smaller diameter means that there are fewer balls to carry the load. Larger leads mean longer travels per revolution and higher speeds. However, this type of screw cannot carry a greater load capacity. Increasing the length of the ball nut is not practical, due to manufacturing constraints.
The most important component of a ball screw is a ball bearing. This prevents excessive friction between the ball and the nut, which is common in lead-screw and nut combinations. Some ball screws feature preloaded balls, which avoid “wiggle” between the nut and the ball. This is particularly desirable in applications with rapidly changing loads. When this is not possible, the ball screw will experience significant backlash.
A ball screw nut can be either single or multiple circuits. Single or multiple-circuit ball nuts can be configured with 1 or 2 independent closed paths. Multi-circuit ball nuts have 2 or more circuits, making them more suitable for heavier loads. Depending on the application, a ball screw nut can be used for small clearance assemblies and compact sizes. In some cases, end caps and deflectors may be used to feed the balls back to their original position.
