China supplier OEM Iron Sand Custom Precision Investment Casting and CNC Machining Gray Iron Ductile Iron Agricultural Machinery Spare Parts with Free Design Custom

Product Description

**What we can do?**

HangZhou  Botai  Auto  arts  Co., Ltd.  is  a  modern   industrial   manufacturer   mainly  engaged  in   the  production of   parts  required  for  automobiles,  trucks, machine  tools, trains  and  other  mechanical  equipment. We  have a  variety of casting processes such as Iron based coated sand, Coated sand, Coated sand, Clay sand, Resin sand, investment  casting,  lost-foam casting, negative  pressure  casting, die casting etc.  At the  same time, we have a complete modern production line from  raw material melting to finished product.

**Description of casting products**

Specification According to customer’s drawing or sample.
Casting Weight 0.1KG-3Tons
Casting Standard ISO ,DIN, AISI, ASTM, BS, JIS, etc. 
Casting Tolerance CT7-CT8.
Surface Roughness Ra0.05-Ra50.
Heat Treatment Normalizing, Annealing, Quenching,  Tempering,  etc.
Casting Material High grade ductile iron(QT1050-6)/(QT800-5)/(QT600-5), Grey iron, Stainless steel, Carbon steel.
Casting Process Sand Casting Iron based coated sand
Coated sand
Clay sand
Resin sand
Investment Casting
Lost Foam Casting
Vacuum process casting
Surface Preparation Sand Blasting,  Plating, Galvanized, Spray-Paint, Passivating,Polishing,Electrophoresis, ,Machining,etc.
Inspection Equipment Test equipment: Spectrum Analyzer, Hexagon CMM, Hardness test equipment, Tension test machine, E-coating testing equipments, Metalloscope.
Dimension Inspection Coordinate Measuring Machine (CMM),Calipers, Height Gauge, Micrometer Calipers, Inside Caliper Gauge, Angle and R Gauge,customized gauge, etc.
Product application Our products are widely used in many industries, such as automobile, truck, train, railway, fitness equipment, agricultural machinery, mining machinery, petroleum machinery, engineering machinery, shipbuilding, construction and other power equipment.
Sample production cycle 30-45 Working days.

**Botai’s comparative advantage**
1* Mature one-stop service system.

Botai provides real one-stop service for all customers
(1)we are the source manufacturers, and our price has an absolute advantage.
(2)We have our own technology department to solve all-round problems related to product technology.
(3)We have a complete production line, products from raw materials to finished products are under our control.
(4)We have a strict product quality monitoring system to ensure the quality of our products and after-sales service.

2* Modern machinery and patented equipment.
Botai has more than 30 kinds of mechanical equipment  related  to  casting, grinding, processing, surface  treatment,  etc.,  more  than  400  sets  in  total, including 60 sets  of  four-axis machining center (CNC) and  2  sets  of  digital  special  machines  designed with  double main axle boxes. Our  equipment  has  significantly  improved  production efficiency and product quality.

3* Sufficient production capacity.
Botai supplies more than 40000 tons of goods to more than 10 companies in 2019. Under the supervision of a production system, CZPT not only ensures sufficient supply capacity, but also achieves 98% delivery efficiency.

4* Modern laboratory.
Every process of each batch of products from raw materials to finished products will be tested in the laboratory to ensure that the quality of each batch of products is up to the standard. For example, we will carry out spectral inspection for each batch of raw material samples, and carry out tensile test for specific products  through tensile machine to ensure the tensile strength of products, etc.

5* Wide application of products
The castings produced by CZPT are widely used in various industries,such as construction vehicles, trains, railways, forklifts, agricultural machinery and other mechanical equipment.We can produce  all  kinds  of  castings  according  to  customer’s  drawings  and  customer’s requirements.

6* Perfect product information tracking
After the product is inspected in terms of quality, we will record the products produced by different batches of raw materials  and  archive the production information of each  batch of products,  each  of  our  products  is  marked  with  raw  material  batch  number  and  factory production code. Our purpose is to find the root of the problem accurately when  the customer  has  the  demand  for  product  quality and  after-sales, and  find the  same batch  of  products to ensure that these products  are  free  of problems.

**Botai’s cooperative partner**
Botai has developed  rapidly since  its establishment  in 2013, and now has an annual sales  volume of  US $80 million, and  has  formed  a  good  and  long-term  cooperation  relationship  with  customers. In  2019, we  supply  70%  of  the castings for China  First  Auto  Work  in HangZhou.

**Botai’s corporate honor**

**FAQ**
1.Are you a factory or trading company? Do you have an advantage in price?
First of all, CZPT is a casting manufacturer. We provide real one-stop service. The products purchased by customers are directly produced by our factory. Therefore, the price of our products has been reduced by 5% to 10% of the trade cost. Our price is absolutely superior.

2.How can you guarantee delivery on time.
Before each new order, each department will hold a meeting to make a strict production plan, implement the supply of raw materials, distribution of production plan and other matters. In addition, the cooperation between us and large companies has also promoted the improvement of our delivery system.

3.How do you guarantee the quality of your products?
First of all, we will carry out quality inspection on the raw materials of the products and ensure that they are qualified. Then we will carry out necessary test and inspection during the production of the products. On the other hand, 70% of the truck castings of China First Auto Work HangZhou branch are produced by Botai, which further proves the quality of our products.

4.How can we quote for you?

Please  send  us enquiry  by email, with all  the  technical  drawings  you  have. Such  as  material  grade,  tolerance,  machining  demands,  surface  treatment, heat treatment, mechanical property requirements, etc. Our specialized engineer will check and quote for you, we would appreciate the opportunity and will respond in 3-5 working days or less. 

5. Which industries do the purchased products apply to?
We are a professional OEM manufacturer. Our products are widely used in forklift, truck, train ,machinery, mining, construction, food and other industries. As long as there is a demand for spare parts, we can process it for production.

 

What Are Worm Gears and Worm Shafts?

If you’re looking for a fishing reel with a worm gear system, you’ve probably come across the term ‘worm gear’. But what are worm gears and worm shafts? And what are the advantages and disadvantages of worm gears? Let’s take a closer look! Read on to learn more about worm gears and shafts! Then you’ll be well on your way to purchasing a reel with a worm gear system.
worm shaft

worm gear reducers

Worm shaft reducers have a number of advantages over conventional gear reduction mechanisms. First, they’re highly efficient. While single stage worm reducers have a maximum reduction ratio of about 5 to 60, hypoid gears can typically go up to a maximum of 1 hundred and 20 times. A worm shaft reducer is only as efficient as the gearing it utilizes. This article will discuss some of the advantages of using a hypoid gear set, and how it can benefit your business.
To assemble a worm shaft reducer, first remove the flange from the motor. Then, remove the output bearing carrier and output gear assembly. Lastly, install the intermediate worm assembly through the bore opposite to the attachment housing. Once installed, you should carefully remove the bearing carrier and the gear assembly from the motor. Don’t forget to remove the oil seal from the housing and motor flange. During this process, you must use a small hammer to tap around the face of the plug near the outside diameter of the housing.
Worm gears are often used in reversing prevention systems. The backlash of a worm gear can increase with wear. However, a duplex worm gear was designed to address this problem. This type of gear requires a smaller backlash but is still highly precise. It uses different leads for the opposing tooth face, which continuously alters its tooth thickness. Worm gears can also be adjusted axially.

worm gears

There are a couple of different types of lubricants that are used in worm gears. The first, polyalkylene glycols, are used in cases where high temperature is not a concern. This type of lubricant does not contain any waxes, which makes it an excellent choice in low-temperature applications. However, these lubricants are not compatible with mineral oils or some types of paints and seals. Worm gears typically feature a steel worm and a brass wheel. The brass wheel is much easier to remodel than steel and is generally modeled as a sacrificial component.
The worm gear is most effective when it is used in small and compact applications. Worm gears can greatly increase torque or reduce speed, and they are often used where space is an issue. Worm gears are among the smoothest and quietest gear systems on the market, and their meshing effectiveness is excellent. However, the worm gear requires high-quality manufacturing to perform at its highest levels. If you’re considering a worm gear for a project, it’s important to make sure that you find a manufacturer with a long and high quality reputation.
The pitch diameters of both worm and pinion gears must match. The 2 worm cylinders in a worm wheel have the same pitch diameter. The worm wheel shaft has 2 pitch cylinders and 2 threads. They are similar in pitch diameter, but have different advancing angles. A self-locking worm gear, also known as a wormwheel, is usually self-locking. Moreover, self-locking worm gears are easy to install.

worm shafts

The deflection of worm shafts varies with toothing parameters. In addition to toothing length, worm gear size and pressure angle, worm gear size and number of helical threads are all influencing factors. These variations are modeled in the standard ISO/TS 14521 reference gear. This table shows the variations in each parameter. The ID indicates the worm shaft’s center distance. In addition, a new calculation method is presented for determining the equivalent bending diameter of the worm.
The deflection of worm shafts is investigated using a four-stage process. First, the finite element method is used to compute the deflection of a worm shaft. Then, the worm shaft is experimentally tested, comparing the results with the corresponding simulations. The final stage of the simulation is to consider the toothing geometry of 15 different worm gear toothings. The results of this step confirm the modeled results.
The lead on the right and left tooth surfaces of worms is the same. However, the lead can be varied along the worm shaft. This is called dual lead worm gear, and is used to eliminate play in the main worm gear of hobbing machines. The pitch diameters of worm modules are equal. The same principle applies to their pitch diameters. Generally, the lead angle increases as the number of threads decreases. Hence, the larger the lead angle, the less self-locking it becomes.
worm shaft

worm gears in fishing reels

Fishing reels usually include worm shafts as a part of the construction. Worm shafts in fishing reels allow for uniform worm winding. The worm shaft is attached to a bearing on the rear wall of the reel unit through a hole. The worm shaft’s front end is supported by a concave hole in the front of the reel unit. A conventional fishing reel may also have a worm shaft attached to the sidewall.
The gear support portion 29 supports the rear end of the pinion gear 12. It is a thick rib that protrudes from the lid portion 2 b. It is mounted on a bushing 14 b, which has a through hole through which the worm shaft 20 passes. This worm gear supports the worm. There are 2 types of worm gears available for fishing reels. The 2 types of worm gears may have different number of teeth or they may be the same.
Typical worm shafts are made of stainless steel. Stainless steel worm shafts are especially corrosion-resistant and durable. Worm shafts are used on spinning reels, spin-casting reels, and in many electrical tools. A worm shaft can be reversible, but it is not entirely reliable. There are numerous benefits of worm shafts in fishing reels. These fishing reels also feature a line winder or level winder.

worm gears in electrical tools

Worms have different tooth shapes that can help increase the load carrying capacity of a worm gear. Different tooth shapes can be used with circular or secondary curve cross sections. The pitch point of the cross section is the boundary for this type of mesh. The mesh can be either positive or negative depending on the desired torque. Worm teeth can also be inspected by measuring them over pins. In many cases, the lead thickness of a worm can be adjusted using a gear tooth caliper.
The worm shaft is fixed to the lower case section 8 via a rubber bush 13. The worm wheel 3 is attached to the joint shaft 12. The worm 2 is coaxially attached to the shaft end section 12a. This joint shaft connects to a swing arm and rotates the worm wheel 3.
The backlash of a worm gear may be increased if the worm is not mounted properly. To fix the problem, manufacturers have developed duplex worm gears, which are suitable for small backlash applications. Duplex worm gears utilize different leads on each tooth face for continuous change in tooth thickness. In this way, the center distance of the worm gear can be adjusted without changing the worm’s design.

worm gears in engines

Using worm shafts in engines has a few benefits. First of all, worm gears are quiet. The gear and worm face move in opposite directions so the energy transferred is linear. Worm gears are popular in applications where torque is important, such as elevators and lifts. Worm gears also have the advantage of being made from soft materials, making them easy to lubricate and to use in applications where noise is a concern.
Lubricants are necessary for worm gears. The viscosity of lubricants determines whether the worm is able to touch the gear or wheel. Common lubricants are ISO 680 and 460, but higher viscosity oil is not uncommon. It is essential to use the right lubricants for worm gears, since they cannot be lubricated indefinitely.
Worm gears are not recommended for engines due to their limited performance. The worm gear’s spiral motion causes a significant reduction in space, but this requires a high amount of lubrication. Worm gears are susceptible to breaking down because of the stress placed on them. Moreover, their limited speed can cause significant damage to the gearbox, so careful maintenance is essential. To make sure worm gears remain in top condition, you should inspect and clean them regularly.
worm shaft

Methods for manufacturing worm shafts

A novel approach to manufacturing worm shafts and gearboxes is provided by the methods of the present invention. Aspects of the technique involve manufacturing the worm shaft from a common worm shaft blank having a defined outer diameter and axial pitch. The worm shaft blank is then adapted to the desired gear ratio, resulting in a gearbox family with multiple gear ratios. The preferred method for manufacturing worm shafts and gearboxes is outlined below.
A worm shaft assembly process may involve establishing an axial pitch for a given frame size and reduction ratio. A single worm shaft blank typically has an outer diameter of 100 millimeters, which is the measurement of the worm gear set’s center distance. Upon completion of the assembly process, the worm shaft has the desired axial pitch. Methods for manufacturing worm shafts include the following:
For the design of the worm gear, a high degree of conformity is required. Worm gears are classified as a screw pair in the lower pairs. Worm gears have high relative sliding, which is advantageous when comparing them to other types of gears. Worm gears require good surface finish and rigid positioning. Worm gear lubrication usually comprises surface active additives such as silica or phosphor-bronze. Worm gear lubricants are often mixed. The lubricant film that forms on the gear teeth has little impact on wear and is generally a good lubricant.

China supplier OEM Iron Sand Custom Precision Investment Casting and CNC Machining Gray Iron Ductile Iron Agricultural Machinery Spare Parts     with Free Design CustomChina supplier OEM Iron Sand Custom Precision Investment Casting and CNC Machining Gray Iron Ductile Iron Agricultural Machinery Spare Parts     with Free Design Custom