Product Description

HangZhou CZPT Hardware Machinery Co., Ltd. mainly provides intelligent manufacturing solutions for precision hardware parts for domestic and foreign customers. The company was established in 2008 and currently has more than 60 sets of various high-precision cutting-edge equipment and more than 80 employees in the production system, including There are more than 40 senior technical talents, and a talent directional transfer plan has been signed with a number of technical schools and training centers.
 
The company’s business involves precision parts and hardware processing in many industries such as auto parts, 3C automation equipment, aerospace, construction machinery, medical, food, new energy battery equipment, instrumentation, precision instruments, hardware tools, etc. At the same time, it also provides customers with precision parts. Design and manufacture of fixtures, jigs, mold accessories, processing of special material parts (such as ceramics, cemented carbide) and automation equipment design, installation, debugging, and production equipment maintenance, improvement and other related businesses.

Our advantage of cnc machining:
 

Materials Available of CNC Machining:

Better services of CNC machining:

FAQ:
What is your product range?
1.CNC machining parts, precision parts, CNC parts, metal machining parts.
2.CNC turning parts, CNC turned parts,Lathe parts, turned parts.
3.CNC milling parts, CNC milled parts, metal milling parts.
4.CNC machined parts,CNC machine part, CNC machinery parts.
5.Metal parts, Auto parts, mechanical parts.spare parts,accessories,hardware.
6.Die casting parts,aluminum casting parts, Zinc casting parts.
7.Die stamping parts, metal stamping parts, press stamping tooling
8. Sheet metal fabrication, bending parts, laser cutting parts, welding parts.
 
Are you a manufacturer?
Yes, We are the manufacturer of all kinds of metal parts by CNC machining, turning, milling, stamping,
casting and bending with13 years’experince ,Warmly welcome to visit our factory at any time.
 
What is material you can process?
Stainless steel: SUS303, SUS304, SUS316, SUS316L, SUS430, SUS440, etc
Aluminum: 6061-T6, 6063-T5, 7075-T6, 2011, 2017, 2571, 5052, 5083, 6082 etc
Brass/copper: C11000, C15710, C12000, C26000, C36000, etc
Carbon steel:  Q235,S235JR,1571, 1015, 1571, 1571, 1030, 1035, 1040, 1045, etc
Plastic: PVC, POM, Telfon, Delrin, PEEK ,Nylon, ABS, PC, PP,PA6, PA66, etc
Free cutting steel: 1211, 12L13, 12L14, 1215, etc
Tool Steel: SKD61,SKD11,HSS M2,ASP23 ,H13,1.2344,D2,1.2379,etc
Alloy steel: 40Cr,15CrMo,4140,4340,35CrMo,16MnCr5
Titanium alloy
 
What benefit we can get from you?
1)Competitive price
2)High quality control : 100% full inspection before shipment
3)High precision, tolerance can be ± 0.005mm
4)Fast lead time (5-7days for samples, 12-15 days for mass production)
5)Non-standard//OEM//customized service provided
6)No MOQ, small QTY is acceptable.
7)ISO 9001:2015 certificated factory, ROHS material used
9)Professional export packing: separate Blister plastic box or Bubble Wrap/Pearl Wool +Carton+Wooded Case, keep no scratch and damage
 
How does the CZPT control the quality?
1)During processing, the operating machine worker inspect the each sizes by themselves.
2)After finished the first whole part, will show to QA for full inspection.
3)Before shipment, the QA will inspect according to ISO sampling inspection standard for mass production. Will do 100% full checking for small QTY.
4) when shipping the goods, we will attached the inspection report with the parts.
 
How to handle the complains?
1)During processing, if found any sizes defective, we will inform the clients and get clients approval.
2)If happen any complaints after got the goods, pls show us photos and detail complaints points, we will check with the production department and QC depart. Immediately and give solving solution with 6 hours.
3)If need re-make, we will arrange re-make urgently and ship you new replacement within 5 days. CZPT will bear all the cost ( include shipping cost).
 
What’s the payment term?
50% deposit, 50% balance by T/T before shipment when order amount over 5000USD.
100% T/T in advance when amount less than 5000USD
L/C payment term for big amount order is acceptable.
Paypal and Western Union for samples cost or very small order.
 
 
What’s the delivery time ?
Normal for samples, 5-7 working days;
For mass production, it takes about 12-15 working days.
If any urgent parts, we can provide preferential processing and control the delivery time as you required.
 
What is the standard of package?
Professional export packing:
1)Separate Blister plastic box or Bubble Wrap/Pearl Wool, keep no scratch and damage.
2)Under 100 KGS parts, use strong DHL export Carton .
3)Above 100 KGS, will customize Wooded case for packing.
 
How to ship the parts?
1)Normally, we shipped the goods by DHL,FEDEX,UPS,TNT express.
2-3 days can arrived the clients’ company directly.
2)For heavy parts, can shipped by air or by sea according to customers’indication.
 
Can we get some sample?
1.Free sample can be provided,but the clients will bear the shipping cost.
2.Samplemaking can be satisfied as customer’s demands,and the sample cost is about 50-100 USD for each part,it depends on the processing.
3. Sample charge is returnable after order the mass production.
 
What kind of certificate you have ?
We have ISO9001:2015
RoHS compliance for material and surface treatment
 
What information should i let you know once i want to make a inquiry?
1.The drawings ( PDF,CAD or 3D )?
2. The material for each drawings?
3. The surface treatment requirement.
4. How many pieces do you need?
 
How fast you can get quotation from CZPT ?
After get customer’s detail enquiry( Clear drawings, material, QTY, surface treatment).
Normally, we will provide offer within 6 hours.
If more than 100 drawings, will provide price within 24 hours.
 
What is your main market?
North America, South America, Western European,
Southeast Asia,Australia

Hypoid Bevel Vs Straight Spiral Bevel – What’s the Difference?

Spiral gears come in many different varieties, but there is a fundamental difference between a Hypoid bevel gear and a Straight spiral bevel. This article will describe the differences between the 2 types of gears and discuss their use. Whether the gears are used in industrial applications or at home, it is vital to understand what each type does and why it is important. Ultimately, your final product will depend on these differences.

Hypoid bevel gears

In automotive use, hypoid bevel gears are used in the differential, which allows the wheels to rotate at different speeds while maintaining the vehicle’s handling. This gearbox assembly consists of a ring gear and pinion mounted on a carrier with other bevel gears. These gears are also widely used in heavy equipment, auxiliary units, and the aviation industry. Listed below are some common applications of hypoid bevel gears.
For automotive applications, hypoid gears are commonly used in rear axles, especially on large trucks. Their distinctive shape allows the driveshaft to be located deeper in the vehicle, thus lowering the center of gravity and minimizing interior disruption. This design makes the hypoid gearset 1 of the most efficient types of gearboxes on the market. In addition to their superior efficiency, hypoid gears are very easy to maintain, as their mesh is based on sliding action.
The face-hobbed hypoid gears have a characteristic epicycloidal lead curve along their lengthwise axis. The most common grinding method for hypoid gears is the Semi-Completing process, which uses a cup-shaped grinding wheel to replace the lead curve with a circular arc. However, this method has a significant drawback – it produces non-uniform stock removal. Furthermore, the grinding wheel cannot finish all the surface of the tooth.
The advantages of a hypoid gear over a spiral bevel gear include a higher contact ratio and a higher transmission torque. These gears are primarily used in automobile drive systems, where the ratio of a single pair of hypoid gears is the highest. The hypoid gear can be heat-treated to increase durability and reduce friction, making it an ideal choice for applications where speed and efficiency are critical.
The same technique used in spiral bevel gears can also be used for hypoid bevel gears. This machining technique involves two-cut roughing followed by one-cut finishing. The pitch diameter of hypoid gears is up to 2500 mm. It is possible to combine the roughing and finishing operations using the same cutter, but the two-cut machining process is recommended for hypoid gears.
The advantages of hypoid gearing over spiral bevel gears are primarily based on precision. Using a hypoid gear with only 3 arc minutes of backlash is more efficient than a spiral bevel gear that requires 6 arc minutes of backlash. This makes hypoid gears a more viable choice in the motion control market. However, some people may argue that hypoid gears are not practical for automobile assemblies.
Hypoid gears have a unique shape – a cone that has teeth that are not parallel. Their pitch surface consists of 2 surfaces – a conical surface and a line-contacting surface of revolution. An inscribed cone is a common substitute for the line-contact surface of hypoid bevel gears, and it features point-contacts instead of lines. Developed in the early 1920s, hypoid bevel gears are still used in heavy truck drive trains. As they grow in popularity, they are also seeing increasing use in the industrial power transmission and motion control industries.

Straight spiral bevel gears

There are many differences between spiral bevel gears and the traditional, non-spiral types. Spiral bevel gears are always crowned and never conjugated, which limits the distribution of contact stress. The helical shape of the bevel gear is also a factor of design, as is its length. The helical shape has a large number of advantages, however. Listed below are a few of them.
Spiral bevel gears are generally available in pitches ranging from 1.5 to 2500 mm. They are highly efficient and are also available in a wide range of tooth and module combinations. Spiral bevel gears are extremely accurate and durable, and have low helix angles. These properties make them excellent for precision applications. However, some gears are not suitable for all applications. Therefore, you should consider the type of bevel gear you need before purchasing.
Compared to helical gears, straight bevel gears are easier to manufacture. The earliest method used to manufacture these gears was the use of a planer with an indexing head. However, with the development of modern manufacturing processes such as the Revacycle and Coniflex systems, manufacturers have been able to produce these gears more efficiently. Some of these gears are used in windup alarm clocks, washing machines, and screwdrivers. However, they are particularly noisy and are not suitable for automobile use.
A straight bevel gear is the most common type of bevel gear, while a spiral bevel gear has concave teeth. This curved design produces a greater amount of torque and axial thrust than a straight bevel gear. Straight teeth can increase the risk of breaking and overheating equipment and are more prone to breakage. Spiral bevel gears are also more durable and last longer than helical gears.
Spiral and hypoid bevel gears are used for applications with high peripheral speeds and require very low friction. They are recommended for applications where noise levels are essential. Hypoid gears are suitable for applications where they can transmit high torque, although the helical-spiral design is less effective for braking. For this reason, spiral bevel gears and hypoids are generally more expensive. If you are planning to buy a new gear, it is important to know which 1 will be suitable for the application.
Spiral bevel gears are more expensive than standard bevel gears, and their design is more complex than that of the spiral bevel gear. However, they have the advantage of being simpler to manufacture and are less likely to produce excessive noise and vibration. They also have less teeth to grind, which means that they are not as noisy as the spiral bevel gears. The main benefit of this design is their simplicity, as they can be produced in pairs, which saves money and time.
In most applications, spiral bevel gears have advantages over their straight counterparts. They provide more evenly distributed tooth loads and carry more load without surface fatigue. The spiral angle of the teeth also affects thrust loading. It is possible to make a straight spiral bevel gear with 2 helical axes, but the difference is the amount of thrust that is applied to each individual tooth. In addition to being stronger, the spiral angle provides the same efficiency as the straight spiral gear.

Hypoid gears

The primary application of hypoid gearboxes is in the automotive industry. They are typically found on the rear axles of passenger cars. The name is derived from the left-hand spiral angle of the pinion and the right-hand spiral angle of the crown. Hypoid gears also benefit from an offset center of gravity, which reduces the interior space of cars. Hypoid gears are also used in heavy trucks and buses, where they can improve fuel efficiency.
The hypoid and spiral bevel gears can be produced by face-hobbing, a process that produces highly accurate and smooth-surfaced parts. This process enables precise flank surfaces and pre-designed ease-off topographies. These processes also enhance the mechanical resistance of the gears by 15 to 20%. Additionally, they can reduce noise and improve mechanical efficiency. In commercial applications, hypoid gears are ideal for ensuring quiet operation.
Conjugated design enables the production of hypoid gearsets with length or profile crowning. Its characteristic makes the gearset insensitive to inaccuracies in the gear housing and load deflections. In addition, crowning allows the manufacturer to adjust the operating displacements to achieve the desired results. These advantages make hypoid gear sets a desirable option for many industries. So, what are the advantages of hypoid gears in spiral gears?
The design of a hypoid gear is similar to that of a conventional bevel gear. Its pitch surfaces are hyperbolic, rather than conical, and the teeth are helical. This configuration also allows the pinion to be larger than an equivalent bevel pinion. The overall design of the hypoid gear allows for large diameter shafts and a large pinion. It can be considered a cross between a bevel gear and a worm drive.
In passenger vehicles, hypoid gears are almost universal. Their smoother operation, increased pinion strength, and reduced weight make them a desirable choice for many vehicle applications. And, a lower vehicle body also lowers the vehicle’s body. These advantages made all major car manufacturers convert to hypoid drive axles. It is worth noting that they are less efficient than their bevel gear counterparts.
The most basic design characteristic of a hypoid gear is that it carries out line contact in the entire area of engagement. In other words, if a pinion and a ring gear rotate with an angular increment, line contact is maintained throughout their entire engagement area. The resulting transmission ratio is equal to the angular increments of the pinion and ring gear. Therefore, hypoid gears are also known as helical gears.