Product Description

Anfida (ZheJiang ) international co., ltd., a professional international trade enterprise, located in ZheJiang , China, is subordinate to ZheJiang HangZhou group, which is an important part of the business integration strategy of HangZhou group, responsible for the import and export business of the whole group. The location of the company is adjacent to ZheJiang xingang, the largest port in north China, and the road traffic is convenient. ZheJiang HangZhou logistics co., LTD., a brother enterprise of Anfida, is responsible for the main transport of goods, and the transport of goods is smooth.
    At present, the products of our company have right to sell and agent, have covered a variety of semi-trailers, a variety of fulltrailers, refitting transport vehicles, a variety of special purpose vehicles, transport vehicle parts(axle, suspension system and other common parts), aluminum (profile, plate and aluminum products), structural parts, etc. Under the premise of cooperating with the development strategy of the whole group, actively prepare to further expand the business to products with higher precision, higher technology content and higher added value.
Since established, the business of this company has been spread across Africa, south America, Oceania, central and eastern Europe, and looking for opportunities to enter the European union and north America market, to further enhance the brand of company. At the same time of business expansion, we have trained and cultivated a professional overall sales team with tacit cooperation among team members and technical expertise. From signing orders to delivery, we have basically realized the real-time tracking of the whole process, ensuring the quality and quantity of goods to embark on the transportation journey.
    As an important part of the overall development of ZheJiang HangZhou group,  Anfida has complete cooperative relation with various of enterprises belong to HangZhou group (such as ZheJiang Xihu (West Lake) Dis.n trailer manufacturing co., ltd., ZheJiang CZPT precision machinery co., ltd.,Arthro HangZhou ZheJiang biologic technology co., ltd) has completely cooperative relations, such as sole agent export, sales, the company all products, also with the domestic many large-scale professional transport vehicle production enterprises, refitted vehicle enterprises,transport vehicle accessories enterprises have cooperation or agency relationship, can export them full range of products, and with the domestic tractor production enterprises and aluminum production enterprises have different levels of business cooperation relationship.
    The company has been adhering to the concept of “service market, mutual benefit and win-win, breakthrough, innovation”. We have established a united team and formed a strong core collective. Although we are not very strong now, we aim to become a bridge for Chinese domestic enterprises to go to the world, a key for foreign high-quality products to enter the Chinese market, and become stronger together with our broad partners.

 
FAQ

Q. What sort of semi-trailers do you manufacture? 
A. We manufactures various kinds of semi-trailer, container transport semi-trailer, bulk cement tanker, fuel tanker, low bed semi-trailer, stake semi-trailer, side wall semi-trailer, box semi-trailer, dump semi-trailer, car carrier in series, etc. 
  
Q. Where can I find more information about a specific kind of trailer? 
A. To find out more about what is standard and what options are available for a specific product, please use the navigation bar on our website to locate the type of semi-trailer you are interested in. You can also contact us 
  
Q. Is it possible to have a trailer built to suit my needs in particular? 
A. Apart from the standard range of our semi-trailers, we could also design products according to actual situations for our customers.  We specialize in custom built semi-trailers. Every semi-trailer is a bespoke unit with the chassis fabricated in our workshop. This enables us to offer a fully flexible design and build service to your exact specifications. 
  
Q. I am not sure exactly what I want – Can you help with ideas? 
A. If we are unable to find a standard semi-trailer to suit you, we are more than happy to discuss your requirements in detail and design and build a solution. We encourage clients to visit our premises to look at the work in progress of semi-trailers in build which give ideas and illustrate what potentially is available. We would then produce a color visual, detailed specification and budget costs for your consideration. We pride ourselves on our friendly, professional service and the quality and finish of our semi-trailers. 
  
Q. What is the lead time for having a semi-trailer made? 
A. The lead time for a semi-trailer varies depending on the length, width and style. Please contact a sales representative for more detailed information. 

What You Should Know About Axle Shafts

There are several things you should know about axle shafts. These include what materials they’re made of, how they’re constructed, and the signs of wear and tear. Read on to learn more about axle shafts and how to properly maintain them. Axle shafts are a crucial part of any vehicle. But how can you tell if 1 is worn out? Here are some tips that can help you determine whether it’s time to replace it.

Materials used for axle shafts

When it comes to materials used in axle shafts, there are 2 common types of materials. One is carbon fiber, which is relatively uncommon for linear applications. Carbon fiber shafting is produced by CZPT(r). The main benefit of carbon fiber shafting is its ultra-low weight. A carbon fiber shaft of 20mm diameter weighs just 0.17kg, as opposed to 2.46kg for a steel shaft of the same size.
The other type of material used in axle shafts is forged steel. This material is strong, but it is difficult to machine. The resulting material has residual stresses, voids, and hard spots that make it unsuitable for some applications. A forged steel shaft will not be able to be refinished to its original dimensions. In such cases, the shaft must be machined down to reduce the material’s hardness.
Alternatively, you can choose to purchase a through-hardened shaft. These types of axle shafts are suitable for light cars and those that use single bearings on their hub. However, the increased diameter of the axle shaft will result in less resistance to shock loads and torsional forces. For these applications, it is best to use medium-carbon alloy steel (MCA), which contains nickel and chromium. In addition, you may also need to jack up your vehicle to replace the axle shaft.
The spline features of the axle shaft must mate with the spline feature on the axle assembly. The spline feature has a slight curve that optimizes contact surface area and distribution of load. The process involves hobbing and rolling, and it requires special tooling to form this profile. However, it is important to note that an axle shaft with a cut spline will have a 30% smaller diameter than the corresponding 1 with an involute profile.
Another common material is the 300M alloy, which is a modified 4340 chromoly. This alloy provides additional strength, but is more prone to cracking. For this reason, this alloy isn’t suited for street-driven vehicles. Axle shafts made from this alloy are magnaflushed to detect cracks before they cause catastrophic failure. This heat treatment is not as effective as the other materials, but it is still a good choice for axle shafts.

Construction

There are 3 basic types of axle shafts: fully floating, three-quarter floating, and semi-floating. Depending on how the shaft is used, the axles can be either stationary or fully floating. Fully floating axle shafts are most common, but there are exceptions. Axle shafts may also be floating or stationary, or they may be fixed. When they are stationary, they are known as non-floating axles.
Different alloys have different properties. High-carbon steels are harder than low-carbon steels, while medium-carbon steels are less ductile. Medium-carbon steel is often used in axle shafts. Some shafts contain additional metals, including silicon, nickel, and copper, for case hardening. High-carbon steels are preferred over low-carbon steels. Axle shafts with high carbon content often have better heat-treatability than OE ones.
A semi-floating axle shaft has a single bearing between the hub and casing, relieving the main shear stress on the shaft but must still withstand other stresses. A half shaft needs to withstand bending loads from side thrust during cornering while transmitting driving torque. A three-quarter floating axle shaft is typically fitted to commercial vehicles that are more capable of handling higher axle loads and torque. However, it is possible to replace or upgrade the axle shaft with a replacement axle shaft, but this will require jacking the vehicle and removing the studs.
A half-floating axle is an alternative to a fixed-length rear axle. This axle design is ideal for mid-size trucks. It supports the weight of the mid-size truck and may support mid-size trucks with high towing capacities. The axle housing supports the inner end of the axle and also takes up the end thrust from the vehicle’s tires. A three-quarter floating axle, on the other hand, is a complex type that is not as simple as a semi-floating axle.
Axle shafts are heavy-duty load-bearing components that transmit rotational force from the rear differential gearbox to the rear wheels. The half shaft and the axle casing support the road wheel. Below is a diagram of different forces that can occur in the axle assembly depending on operating conditions. The total weight of the vehicle’s rear can exert a bending action on the half shaft, and the overhanging section of the shaft can be subject to a shearing force.

Symptoms of wear out

The constant velocity axle, also called the half shaft, transmits power from the transmission to the wheels, allowing the vehicle to move forward. When it fails, it can result in many problems. Here are 4 common symptoms of a bad CV axle:
Bad vibrations: If you notice any sort of abnormal vibration while driving, this may be a sign of axle damage. Vibrations may accompany a strange noise coming from under the vehicle. You may also notice tire wobble. It is important to repair this problem as it could be harmful to your car’s handling and comfort. A damaged axle is generally accompanied by other problems, including a weak braking response.
A creaking or popping sound: If you hear this noise when turning your vehicle, you probably have a worn out CV axle. When the CV joints lose their balance, the driveshaft is no longer supported by the U-joints. This can cause a lot of vibrations, which can reduce your vehicle’s comfort and safety. Fortunately, there are easy ways to check for worn CV axles.
CV joints: A CV joint is located at each end of the axle shaft. In front-wheel drive vehicles, there are 2 CV joints, 1 on each axle. The outer CV joint connects the axle shaft to the wheel and experiences more movement. In fact, the CV joints are only as good as the boot. The most common symptoms of a failed CV joint include clicking and popping noises while turning or when accelerating.
CV joint: Oftentimes, CV joints wear out half of the axle shaft. While repairing a CV joint is a viable repair, it is more expensive than replacing the axle. In most cases, you should replace the CV joint. Replacement will save you time and money. ACV joints are a vital part of your vehicle’s drivetrain. Even if they are worn, they should be checked if they are loose.
Unresponsive acceleration: The vehicle may be jerky, shuddering, or slipping. This could be caused by a bent axle. The problem may be a loose U-joint or center bearing, and you should have your vehicle inspected immediately by a qualified mechanic. If you notice jerkiness, have a mechanic check the CV joints and other components of the vehicle. If these components are not working properly, the vehicle may be dangerous.

Maintenance

There are several points of concern regarding the maintenance of axle shafts. It is imperative to check the axle for any damage and to lubricate it. If it is clean, it may be lubricated and is working properly. If not, it will require replacement. The CV boots need to be replaced. A broken axle shaft can result in catastrophic damage to the transmission or even cause an accident. Fortunately, there are several simple ways to maintain the axle shaft.
In addition to oil changes, it is important to check the differential lube level. Some differentials need cleaning or repacking every so often. CZPT Moreno Valley, CA technicians know how to inspect and maintain axles, and they can help you determine if a problem is affecting your vehicle’s performance. Some common signs of axle problems include excessive vibrations, clunking, and a high-pitched howling noise.
If you’ve noticed any of these warning signs, contact your vehicle’s manufacturer. Most manufacturers offer service for their axles. If it’s too rusted or damaged, they’ll replace it for you for free. If you’re in doubt, you can take it to a service center for a repair. They’ll be happy to assist you in any aspect of your vehicle’s maintenance. It’s never too early to begin.
CZPT Moreno Valley, CA technicians are well-versed in the repair of axles and differentials. The CV joint, which connects the car’s transmission to the rear wheels, is responsible for transferring the power from the engine to the wheels. Aside from the CV joint, there are also protective boots on both ends of the axle shaft. The protective boots can tear with age or use. When they tear, they allow grease and debris to escape and get into the joint.
While the CV joint is the most obvious place to replace it, this isn’t a time to ignore this important component. Taking care of the CV joint will protect your car from costly breakdowns at the track. While servicing half shafts can help prevent costly replacement of CV joints, it’s best to do it once a season or halfway through the season. ACV joints are essential for your car’s safety and function.