China supplier Hebei CZPT OEM Stainless Steel 304/316, 3/4/5 Blades Marine Ship/Boat Motor Propeller with Passion and Heart with high quality

Product Description

The products shown here is only to present the scope of our business activities. We can manufacture no standard parts according to your drawing or sample.

ZheJiang CZPT OEM Stainless Steel 304/316, 3/4/5 Blades Marine Ship/Boat Motor Propeller

 

Advantages of Stainless Steel Casting

  • Sizes: 0.1 in to 24 in
  • Weights: a few grams to more than 50 pounds
  • Surface: very smooth finish
  • Tight tolerances
  • Reliable process controls and repeatability
  • Design and casting versatility
  • Efficient production
  • Affordable tooling
  • Material variety

 

Investment Casting vs. Die Casting

Investment casting has significantly cheaper tooling and is a more cost-effective option for lower quantity production runs. Additional benefits include a larger alloy selection and the ability to cast larger pieces.

Investment Casting vs. Sand Casting

Investment casting provides a better surface finish and allows for greater design flexibility including the ability to cast thinner walls, create tighter tolerances and create more intricate coring.

Investment Casting vs. Machining

Investment casting can significantly reduce the cost and lower the production time per piece. This is accomplished by producing near net shape parts, while greatly reducing the amount of material waste. In some instances, multiple fabricated parts can be produced as a single casting.

 

Name OEM stainless steel investment casting parts Material
Material 304,306 ,2205stainless steel etc,
Designs 1.As per the customer’s drawings
2.As per the customer’s samples
Surface treatment 1. mirror polish
2. passivation
Service OEM service available
Products All kinds of stainless steel casting: include pipe fitting, ball valve, automotive parts,railroad parts, medical parts, marine parts, lighting parts,pump body, 
valve parts, architectural parts and furniture parts so on
Advantage 1. More than 10 years experience in stainless steel casting;
2. Near ZheJiang Port and ZheJiang Airport;
3. We provide: OEM stainless steel lost wax castings and OEM machining services for stainless steel lost wax castings. We have: CNC Machining, CNC turning, CNC Milling, 3D CMM Inspection and CNC Optical Inspection. We believe: on time, stable quality, just price, client confidentiality.
4. With samples and order: We can offer dimension report,material certification.
Inspection: 1.Dimension report
2.Material certification
Packing: Export carton and fumigation wooden pall

 

Casting Detail

 

Mainly Material

stainless steel, carbon steel, steel, aluminium, brass, bronze, copper

Process

investment casting, lost wax casting, silica sol casting. water glass casting, die casting

Casting tolerance

CT4-CT6 (GB/T 6414),CT7-CT9 (GB/T 6414)

Standard

AISI, ANSI, ASTM, JIS, GB, ISO, DIN

Certificate

TS16949,SGS, ISO, or as your requirement to do test by the third party

Machining

tapping, milling, grinding, drilling, cnc machining

Tolerance

+/-0.02mm or as drawing requirement

Surface treatment

polishing,mirror polishing, electrogalvanizing, sandblasting, shot blasting 

Heat treatment

quchenging and tempering, annealing, normalizing

Casting Roughness

Ra 1.6-Ra12.5

Application
 

• Agricultural equipment

• Armament

• Automobile industry

• Computing equipment

• Medical / dental instruments

• Measuring instruments

• Miscellaneous equipment

• Pharmaceutical industry

• Orthopedic implants

• Safety equipment

• Petrochemical industry

• Industrial valves

•Fixing and movable equipment

• Sanitary fittings

• General machinery

• Pumps and general connections

• Food and beverage processing

• Instrumentation equipment

• Pharmaceutical industry

• Textile equipment

Our Inspection Equipment:

Direct-reading spectrograph,metallographic microscope,hardness tester,brinell hardness tester,thermometric indicator,universal testing machine,carbon and silicon analysis meter,magnetic powder flaw detector,digital ultrasonic flaw detector etc.

Our Service:

1.Your inquiry related to our products or prices will be replied in 12 hours.
2.Individual formula according to customers’ special drawing requests.
3.Manufacturer with large capacity,ensures the fast production cycle after
confirming the order.
4.Protection of sales area and private information for all of our customers.

Quality Control:

We have a full set of quality control system to guarantee best product quality. Depending on the products, we can make different Item Testing Plan, Manufacturing procedure etc.
Raw material control
Chemistry spectrum analysis
Mechanical property
Metallographic analysis
Ultrasonic testing
Magnetic testing
Radiographic testing
Dimension inspection
Visual inspection
Penetrant testing
Leak testing
Hardness test
Micro-structure tester after heat treatment

*Our wax casting product processed by 79 steps with high standard and 100% inspection. Along with the power of our advanced machine, quality is something you do not need to worry about. 

ZheJiang CZPT Precision Machinery Co. Ltd is a high-tech enterprise combine designing, tooling developing, casting, machining, surface treatment, inspection, sales and service all together.  Founded in 2017, located in HangZhou, ZheJiang . CZPT now covers an area of more than 5000 square meters.

With a massive research & development environment, CZPT utilized market-leading technology and introduced various of advanced equipment to ensure the stringent  quality in production. 

Under a powerful management team, the company has growing to the group with more than 100 employees. Product offerings range from Stainless Steel Pipe Fitting, Quick Joint, Ball Valve, Check Valve, to Marine Hardware and Auto Parts. The material are 304, 304L, 316, 316L, SF8M, WCB, 1.4408, etc.

-Quality- -Creativity- -Consistency-
These words are CZPT slogan, and also philosophy that drives the company to offer the superior service you are looking for.

*More detail of the factory can be shared in the reply to your inquiry. Photos and videos of the factory and products is available. Free sample can be provided as well.

1) Design assistance and full engineering support .
2) Professional at OEM & ODM parts .
3) Excellent after sales service. 
4) Advanced machine tools, CAD/CAM programming software.  
5) Prototype machining capabilities.
6) Strict quality control standards with a highly qualified inspection department .  
7) Continually upgrading and advancing our equipment to remain competitive .

8) Small quality is also available. 

FAQ:

Q1: How long is your delivery time? 
A:Delivery time is depends on the total quantity of order. Normally, sample can be delivered within 15 days. 

Q2: Do you provide samples? Is it free or extra?
A:Yes, we could offer sample for free, and we can pay for the model as well, but the clients has to pay for the shipping cost.

Q3: What is the MOQ of your products?
A:It depends on the category of order.

Q4: Where is your factory?
A:Our factory located in ZheJiang province, close to ZheJiang seaport.

Q5:What does your company need to submit a quotation?
A:Drawing or Sample, together with relevant information, such as Quantity, Weight, Material.

Q6:What we do not have a drawing?
A:We can duplicate your sample and make drawing for your confirmation. 

 

Screw Shaft Types

A screw shaft is a cylindrical part that turns. Depending on its size, it is able to drive many different types of devices. The following information outlines the different types of screws, including their sizes, material, function, and applications. To help you select the right screw shaft, consider the following factors:
screwshaft

Size

A screw can come in a variety of shapes and sizes, ranging from a quarter to a quarter-inch in diameter. A screw is a cylindrical shaft with an inclined plane wrapped around it, and its main function is to fasten objects together by translating torque into a linear force. This article will discuss the dimensions of screws and how to determine the size of a screw. It is important to note that screw sizes can be large and small depending on the purpose.
The diameter of a screw is the diameter of its shaft, and it must match the inner diameter of its nuts and washers. Screws of a certain diameter are also called machine screws, and they can be larger or smaller. Screw diameters are measured on the shaft underneath the screw head. The American Society of Mechanical Engineers (ASME) standardized screw diameters in 3/50-inch to 16 (3/8-inch) inches, and more recently, sizes were added in U.S. fractions of an inch. While shaft and head diameters are standardized, screw length may vary from job to job.
In the case of the 2.3-mm screw group, the construct strength was not improved by the 1.2-mm group. The smaller screw size did not increase the strength of the construct. Further, ABS material did not improve the construct strength. Thus, the size of screw shaft is an important consideration in model design. And remember that the more complex your model is, the larger it will be. A screw of a given size will have a similar failure rate as a screw of a different diameter.
Although different screw sizes are widely used, the differences in screw size were not statistically significant. Although there are some limitations, screws of different sizes are generally sufficient for fixation of a metacarpal shaft fracture. However, further clinical studies are needed to compare screw sizes for fracture union rates. So, if you are unsure of what size of screw shaft you need for your case, make sure to check the metric chart and ensure you use the right one.
screwshaft

Material

The material of a screw shaft plays an important role in the overall performance of a screw. Axial and central forces act to apply torque to the screw, while external forces, such as friction, exert a bending moment. The torsional moments are reflected in the torque, and this causes the screw to rotate at a higher rate than necessary. To ensure the longevity of the screw, the material of the screw shaft should be able to handle the bending moment, while the diameter of the shaft should be small enough to avoid causing damage.
Screws are made from different metals, such as steel, brass, titanium, and bronze. Manufacturers often apply a top coating of chromium, brass, or zinc to improve corrosion resistance. Screws made of aluminum are not durable and are prone to rusting due to exposure to weather conditions. The majority of screw shafts are self-locking. They are suited for many applications, including threaded fasteners, C-clamps, and vises.
Screws that are fabricated with conical sections typically feature reduced open cross-sectional areas at the discharge point. This is a key design parameter of conical screw shafts. In fact, reductions of up to 72% are common across a variety of applications. If the screw is designed to have a hard-iron hanger bearing, it must be hardened. If the screw shaft is not hardened, it will require an additional lubricant.
Another consideration is the threads. Screw shafts are typically made of high-precision threads and ridges. These are manufactured on lathes and CNC machines. Different shapes require different materials. Materials for the screw shaft vary. There are many different sizes and shapes available, and each 1 has its own application. In addition to helical and conical screw shafts, different materials are also available. When choosing material, the best 1 depends on the application.
The life of the screw depends on its size, load, and design. In general, the material of the screw shaft, nut body, and balls and rollers determine its fatigue life. This affects the overall life of the screw. To determine whether a specific screw has a longer or shorter life, the manufacturer must consider these factors, as well as the application requirements. The material should be clean and free of imperfections. It should be smooth and free of cracks or flaking, which may result in premature failure.

Function

The function of a screw shaft is to facilitate the rotation of a screw. Screws have several thread forms, including single-start, double-start and multi-start. Each form has its own advantages and disadvantages. In this article we’ll explore each of them in detail. The function of a screw shaft can vary based on its design, but the following are common types. Here are some examples of screw shaft types and their purposes.
The screw’s torque enables it to lift objects. It can be used in conjunction with a bolt and nut to lift a load. Screws are also used to secure objects together. You can use them in screw presses, vises, and screw jacks. But their primary function is to hold objects together. Listed below are some of their main functions. When used to lift heavy loads, they can provide the required force to secure an object.
Screws can be classified into 2 types: square and round. Square threads are more efficient than round ones because they apply 0deg of angle to the nut. Square threads are also stronger than round threads and are often used in high-load applications. They’re generally cheaper to manufacture and are more difficult to break. And unlike square threads, which have a 0deg thread angle, these threads can’t be broken easily with a screwdriver.
A screw’s head is made of a series of spiral-like structures that extend from a cylindrical part to a tip. This portion of the screw is called the shank and is made of the smallest area. The shank is the portion that applies more force to the object. As the shaft extends from the head, it becomes thinner and narrow, forming a pointed tip. The head is the most important part of the screw, so it needs to be strong to perform its function.
The diameter of the screw shaft is measured in millimeters. The M8 screw has a thread pitch of 1.25 mm. Generally, the size of the screw shaft is indicated by the major and minor diameter. These dimensions are appended with a multiplication sign (M8x1).
screwshaft

Applications

The design of screws, including their size and shape, determines their critical rotating speeds. These speeds depend on the threaded part of the screw, the helix angle, and the geometry of the contact surfaces. When applied to a screw, these limits are referred to as “permissible speed limits.” These maximum speeds are meant for short periods of time and optimized running conditions. Continuous operation at these speeds can reduce the calculated life of a nut mechanism.
The main materials used to manufacture screws and screw shafts include steel, stainless steel, titanium, bronze, and brass. Screws may be coated for corrosion resistance, or they may be made of aluminium. Some materials can be threaded, including Teflon and nylon. Screw threads can even be molded into glass or porcelain. For the most part, steel and stainless steel are the most common materials for screw shafts. Depending on the purpose, a screw will be made of a material that is suitable for the application.
In addition to being used in fasteners, screw shafts are used in micrometers, drillers, conveyor belts, and helicopter blades. There are numerous applications of screw shafts, from weighing scales to measuring lengths. If you’re in the market for a screw, make sure to check out these applications. You’ll be happy you did! They can help you get the job done faster. So, don’t delay your next project.
If you’re interested in learning about screw sizing, then it’s important to know the axial and moment loads that your screws will experience. By following the laws of mechanics and knowing the load you can calculate the nominal life of your screw. You can also consider the effect of misalignment, uneven loading, and shocks on your screw. These will all affect the life of your screw. Then, you can select the right screw.

China supplier Hebei CZPT OEM Stainless Steel 304/316, 3/4/5 Blades Marine Ship/Boat Motor Propeller with Passion and Heart   with high qualityChina supplier Hebei CZPT OEM Stainless Steel 304/316, 3/4/5 Blades Marine Ship/Boat Motor Propeller with Passion and Heart   with high quality

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