Solution Description
AT business is 1 supplier with more than 13 a long time expertise on forging parts,Brass Areas,Automobile Components,Machining Components
Requirements
tailored machine element whole seller
1.thirteen years’ experience
2. sharp delivery
three.outstanding good quality
aluminum 6061-t6 cnc milling machine part whole seller
1. All parts produced according to your CAD and 3D drawings or sample. Please send the drawings firstly, we will offer our quotation to you
within 2 days.
two. we specialized in manufacturing CNC machining products according to customers drawings or samples
3. Advanced equipment, excellent R&D teams and strict quality control system
four.These kinds of parts were made by high precision CNC machines. All the dimension were made as per customer requests .
five.cnc aluminum/thread chopping machining components was 100% inspected before shipment.
six. The price will be FOB or CIF dollars. minium quantity was acceptable.
seven. products showed here only present the capability of our business activities
We are dedicated to :
1.designing and manufacture of your unique metal products
2.Turning your drawing to be a nice unique products
three.Turning your idea to be a real nice products
four.using The most advanced test equipments to ensure the quality
five.cnc aluminum/thread reducing machining parts that meet their needs.
Reject rate≤ 0.5%, Rework rate≤ 0.5%, On time delivery rate>95%
ABOUT US:
A&T Industry is a contract manufacture and exporter of quality sand castings,
investment castings, lost foam castings, hot forgings, cold forgings, stampings,
machined parts, injectionmolded plastics parts, etc.
We are a dedicated team of customer focused industry professionals with
extensive experience in manufacturing, materials engineering,
quality assurance, logistics management and inventory control.
We utilize our experience and sources advantage to provide our customers
with cost effective and value based solutions to meet their engineering and
layout needs while exceeding their quality and procurement requirements.
A&T Industry is located in HangZhou, a major seaport, Olympic Host City and
industrial center of China.
Assurance,
100% quality manufacturing.
We guarantee that our products meet your supplied specifications
Extremely competitive pricing
Delivery to your port or front door
4 —- 8 week lead times
We handle all paperwork
Partial container orders
Flexible payment options
Unique tooling options
Full range of packaging options from bulk to retail ready
Complete testing services available
FAQs
one. In which is your place?
We are found in HangZhou City of China and are shut to Airport. It normally takes 30minuts by car from Liuting Airport our company.
two. How extended has the business been set up?
AT Business was proven in 2009. There is 6 many years exporting encounters.
3. How a lot of employees do you have?
Administration / sales 4
Engineering / style as our partner eight
Production as our associates a hundred and twenty
Top quality assurance / inspection ten
four. Which countries do you export to?
U.S.A, Germany, France, Italy, British isles, Brazil, Center east of Asia, Thailand,
five. What proportion of your merchandise are exported?
one hundred% of our generation are exported to all more than the planet.
six. How extended does it consider to get samples?
a) Pattern:30-45days right after order
b) Sample:30days following sample finishing.
c) The guide time is the general manufacturing period and does not consist of the transportation time.
seven. New solution advancement process
Obtained tooling buy and sample purchase with 50% deposit—Maintain a assembly with the relation dept. to make sure the building schedule—Design and style sample, fixture and gauge and generating them in our property—mould metal purchasing—Machining—Inspection—Send out out the sample with initial inspection report.
eight. How lengthy is the producing guide time?
Mass Generation: 90days after sample approval by yours.
The direct time is the general manufacturing period including the transportation time.
We could make some particular generation arrangement efficiently if client has urgent need.
nine. What foundation can we get goods?
We normally offer consumers costs FOB& CIF (Carriage, Insurance coverage & Freight). The CIF consists of the freight price to your nominated sea port.
We do supply clearance of merchandise which demands to be managed by a neighborhood freight forwarder.
All regional expenses and taxes are the responsibility of the purchaser. We are pleased to offer advisement on shipping and delivery if necessary.
10. What are the payment phrases?
Payment conditions are negotiable and will increase for extended phrase clients.
In the course of the first phases, we request fifty% of tooling fee in advance with the balance payable on acceptance of samples.
Creation orders can be negotiable. We choose 50% deposit and the equilibrium by T/T ahead of sails. But sometimes T/T 30 times right after sails would also suitable.
11. Which currency can we purchase in?
We can offer in USD / Euro forex / GBP.
twelve. How prolonged does it get to ship items from China by sea?
It will take about 5 months to European ports in addition 1 week customs clearance, so you can get the container inside of 6 to 7 months. It will take about 2 weeks to east coast and 3 weeks to west coast US ports. All sea goods are delivered from HangZhou Port.
thirteen. How long does it just take to ship items from China by air?
It will take about 7 times to all major locations.
fourteen. Can we visit the factory to carry out an audit?
Indeed, you are welcome to pay a visit to our companion manufacturing unit by prior arrangement.
15. How do we keep customer confidentiality?
We are satisfied to sign Confidentiality Agreements with consumers and will honor them.
sixteen. Which languages do we do enterprise in?
Although we do enterprise with several countries all around the entire world, we can only converse effectively in Chinese English.
All information provided ought to consequently be provided in this sort.
17. Is there a minimum volume of enterprise required to perform worldwide purchasing?
There are no minimum volumes, but the prices of the items, furthermore the fixed expenses of importing tends to make it a lot more affordable to acquire in high volumes. All potential buyers will be assessed on an individual foundation to determine if it seems a practical option for all functions to create a romantic relationship.
eighteen. What type of areas you are specialized in?
Our business contains 2 places,
one is for construction precast including lifting technique, rigging hardware steel areas.
Yet another is custom-made steel enterprise of quality sand castings, investment castings, lost foam castings, hot forgings, cold forgings, stampings, machined parts, injectionmolded plastics parts, etc.
19. Which variety of equipments do you have?
Forging friction press 160Ton, 300Ton, 630Ton, 1200Ton
Casting CZPT of 200kg, 500kg,1000kgs, 2000kgs
Press of 63ton, 120tons
CNC Machining centre
CNC Vertical Lathe
CNC Lathe center
Boring machine
Drilling machine
| Material | Steel, Zinc, Alunumin, Brass.Stainless steel. |
| Surface treatment | Nickel plating. Zinc plating, Chrome plating, Oxidation. Anodization |
| Tolerance | +/-0.01mm or +/- 0.0004" |
| Thread Standard | NPT,BSP(G),M, GHT,UN,NPSM,BSPT(Tr),NPTF… |
| Quality control | 100% inspection on critical dimensions |
| Inspection equipment | Three axis meansuring machine for X.Y.Z. Projection meter. |
| Production output | 100000.000 pieces/ month |
| Productin range | Part ID from 2-500mm with tolerance +/-0.01mm |
| Experience | 13 years of professional OEM service |
| Supply chain process | PPAP |
| Ability | To develop hundreds of new parts annually. |
| Packaging | Standard export carton with palletized |
| Lead time | 35 days regularly |
| Term of Payment | T/T. L/C or Customer’s request |
| Material | Steel, Zinc, Alunumin, Brass.Stainless steel. |
| Surface treatment | Nickel plating. Zinc plating, Chrome plating, Oxidation. Anodization |
| Tolerance | +/-0.01mm or +/- 0.0004" |
| Thread Standard | NPT,BSP(G),M, GHT,UN,NPSM,BSPT(Tr),NPTF… |
| Quality control | 100% inspection on critical dimensions |
| Inspection equipment | Three axis meansuring machine for X.Y.Z. Projection meter. |
| Production output | 100000.000 pieces/ month |
| Productin range | Part ID from 2-500mm with tolerance +/-0.01mm |
| Experience | 13 years of professional OEM service |
| Supply chain process | PPAP |
| Ability | To develop hundreds of new parts annually. |
| Packaging | Standard export carton with palletized |
| Lead time | 35 days regularly |
| Term of Payment | T/T. L/C or Customer’s request |
Worm Shafts and Gearboxes
If you have a gearbox, you may be wondering what the best Worm Shaft is for your application. There are several things to consider, including the Concave shape, Number of threads, and Lubrication. This article will explain each factor and help you choose the right Worm Shaft for your gearbox. There are many options available on the market, so don’t hesitate to shop around. If you are new to the world of gearboxes, read on to learn more about this popular type of gearbox.
Concave shape
The geometry of a worm gear varies considerably depending on its manufacturer and its intended use. Early worms had a basic profile that resembled a screw thread and could be chased on a lathe. Later, tools with a straight sided g-angle were developed to produce threads that were parallel to the worm’s axis. Grinding was also developed to improve the finish of worm threads and minimize distortions that occur with hardening.
To select a worm with the proper geometry, the diameter of the worm gear must be in the same unit as the worm’s shaft. Once the basic profile of the worm gear is determined, the worm gear teeth can be specified. The calculation also involves an angle for the worm shaft to prevent it from overheating. The angle of the worm shaft should be as close to the vertical axis as possible.
Double-enveloping worm gears, on the other hand, do not have a throat around the worm. They are helical gears with a straight worm shaft. Since the teeth of the worm are in contact with each other, they produce significant friction. Unlike double-enveloping worm gears, non-throated worm gears are more compact and can handle smaller loads. They are also easy to manufacture.
The worm gears of different manufacturers offer many advantages. For instance, worm gears are one of the most efficient ways to increase torque, while lower-quality materials like bronze are difficult to lubricate. Worm gears also have a low failure rate because they allow for considerable leeway in the design process. Despite the differences between the two standards, the overall performance of a worm gear system is the same.
The cone-shaped worm is another type. This is a technological scheme that combines a straight worm shaft with a concave arc. The concave arc is also a useful utility model. Worms with this shape have more than three contacts at the same time, which means they can reduce a large diameter without excessive wear. It is also a relatively low-cost model.
Thread pattern
A good worm gear requires a perfect thread pattern. There are a few key parameters that determine how good a thread pattern is. Firstly, the threading pattern must be ACME-threaded. If this is not possible, the thread must be made with straight sides. Then, the linear pitch of the “worm” must be the same as the circular pitch of the corresponding worm wheel. In simple terms, this means the pitch of the “worm” is the same as the circular pitch of the worm wheel. A quick-change gearbox is usually used with this type of worm gear. Alternatively, lead-screw change gears are used instead of a quick-change gear box. The pitch of a worm gear equals the helix angle of a screw.
A worm gear’s axial pitch must match the circular pitch of a gear with a higher axial pitch. The circular pitch is the distance between the points of teeth on the worm, while the axial pitch is the distance between the worm’s teeth. Another factor is the worm’s lead angle. The angle between the pitch cylinder and worm shaft is called its lead angle, and the higher the lead angle, the greater the efficiency of a gear.
Worm gear tooth geometry varies depending on the manufacturer and intended use. In early worms, threading resembled the thread on a screw, and was easily chased using a lathe. Later, grinding improved worm thread finishes and minimized distortions from hardening. As a result, today, most worm gears have a thread pattern corresponding to their size. When selecting a worm gear, make sure to check for the number of threads before purchasing it.
A worm gear’s threading is crucial in its operation. Worm teeth are typically cylindrical, and are arranged in a pattern similar to screw or nut threads. Worm teeth are often formed on an axis of perpendicular compared to their parallel counterparts. Because of this, they have greater torque than their spur gear counterparts. Moreover, the gearing has a low output speed and high torque.
Number of threads
Different types of worm gears use different numbers of threads on their planetary gears. A single threaded worm gear should not be used with a double-threaded worm. A single-threaded worm gear should be used with a single-threaded worm. Single-threaded worms are more effective for speed reduction than double-threaded ones.
The number of threads on a worm’s shaft is a ratio that compares the pitch diameter and number of teeth. In general, worms have 1,2,4 threads, but some have three, five, or six. Counting thread starts can help you determine the number of threads on a worm. A single-threaded worm has fewer threads than a multiple-threaded worm, but a multi-threaded worm will have more threads than a mono-threaded planetary gear.
To measure the number of threads on a worm shaft, a small fixture with two ground faces is used. The worm must be removed from its housing so that the finished thread area can be inspected. After identifying the number of threads, simple measurements of the worm’s outside diameter and thread depth are taken. Once the worm has been accounted for, a cast of the tooth space is made using epoxy material. The casting is moulded between the two tooth flanks. The V-block fixture rests against the outside diameter of the worm.
The circular pitch of a worm and its axial pitch must match the circular pitch of a larger gear. The axial pitch of a worm is the distance between the points of the teeth on a worm’s pitch diameter. The lead of a thread is the distance a thread travels in one revolution. The lead angle is the tangent to the helix of a thread on a cylinder.
The worm gear’s speed transmission ratio is based on the number of threads. A worm gear with a high ratio can be easily reduced in one step by using a set of worm gears. However, a multi-thread worm will have more than two threads. The worm gear is also more efficient than single-threaded gears. And a worm gear with a high ratio will allow the motor to be used in a variety of applications.
Lubrication
The lubrication of a worm gear is particularly challenging, due to its friction and high sliding contact force. Fortunately, there are several options for lubricants, such as compounded oils. Compounded oils are mineral-based lubricants formulated with 10 percent or more fatty acid, rust and oxidation inhibitors, and other additives. This combination results in improved lubricity, reduced friction, and lower sliding wear.
When choosing a lubricant for a worm shaft, make sure the product’s viscosity is right for the type of gearing used. A low viscosity will make the gearbox difficult to actuate and rotate. Worm gears also undergo a greater sliding motion than rolling motion, so grease must be able to migrate evenly throughout the gearbox. Repeated sliding motions will push the grease away from the contact zone.
Another consideration is the backlash of the gears. Worm gears have high gear ratios, sometimes 300:1. This is important for power applications, but is at the same time inefficient. Worm gears can generate heat during the sliding motion, so a high-quality lubricant is essential. This type of lubricant will reduce heat and ensure optimal performance. The following tips will help you choose the right lubricant for your worm gear.
In low-speed applications, a grease lubricant may be sufficient. In higher-speed applications, it’s best to apply a synthetic lubricant to prevent premature failure and tooth wear. In both cases, lubricant choice depends on the tangential and rotational speed. It is important to follow manufacturer’s guidelines regarding the choice of lubricant. But remember that lubricant choice is not an easy task.
