Product Description
ABOUT US
HangZhou Suijin machinery Technology Co,.Ltd is a profational manufacturer in HangZhou city, our main process is investment casting/precision casting and machining, for casting process, we have 2 kinds of production line, 1 is precision casting, another is water glass with competitive cost.
Apart from the investment casting workshop and machine workshop, we also provide the CZPT parts to meet the requirement for varial demand from our customer.
CERTIFICATIONS
Our company got the ISO9001 and IATF16949 certification, and aslo we are awarded the new high-tech enterprice by Chinese government, and we have more than 20 patent.
ADVANTAGES
• More than 10 years experience on casting and machining
• Advanced inspection equipment to ensure the tolerance
• Flexible PO QTY to meet customer demand
• Professional engineers in casting and machining
• Competitive price and exllent parts quality
• Nearby HangZhou port, on-time delivery
PROCESS FLOW
OEM&ODM SERVICE
HangZhou suijin machinery technology can provide the ODM&OEM service for customer, and main is ODM, we can manufacturing the customized parts according to 2D&3D, we have professional R&D team can take part in ealier development phase of the project.
AVALIABLE MATERIA & SURFACE TREATMENT
| Avaliable Material | |||
| Carbon Steel | Alloy Steel | High Chromium Cast Iron | Low carbon steel |
| Stainless Steel | Duplex Stainless Steel | Steel bar | Ductile Cast Iron |
| Surface treatment | |||
| Heat Treatment | Zinc Coating | Blackening | Mirror Polishing |
| Satin Polishing | Electrolytic Polishing | Shot Peening | DACROMET |
PRODUCT APPLICATION
AUTO PARTS
• Exhaust inlet/outlet cone • Shift sleeve • Fuel rail bracket
• Tempreture sensor boss • Mounting Brackets • Oxygen sensor boss
• Brake balance block • EGR sensor boss • Exhaust valve body
ARCHITECTURAL HARDWARE
• Mounting Base • Mounting plate • Bearing Covers
• Coupling • Grount sleeve • Sprockets
• Handle • law glass curtain wall accessories • Side Plates
AGRICULTURAL MACHINERY PARTS
• Tooth Blocks • Track shoes • Bucket Teeth
• Track Links • Clamping • Mounting Brackets
• Lifting Eyes • Quick Joint • Trencher Tooth
MARINE HARDWARE
• Star handle • Door hinge • Folding Dock Cleat
• Mirror Polished Mooring • Hollow base boat rope cleat • Mounting Brackets
VALAVE/PUMP
• Valve body • Explosion-proof valves • Pipe fitting
OTHERS
The casting part is wildly use in the industries, such as rail&transit parts, bicycle parts, casting impeller, food machine sorting components, solar mounting system parts, container safety parts, Electronic lock body, robot parts and so on, we have more than 20 patents related to this kinds of project in production.
ADVANCED EQUIPMENTS
Our company also equiped advance inspection equipment to meet the inspection requirement of the parts, so that we can sure the part can have a good quality.
MAIN EQUIPMENT LIST
| Magnetic defect inspection | Spectrometer | HB hardness inspection | Mechanical inspection |
| Ultrasonic defect inspection | Roughness tester | HR hardness inspection | CMM inspection |
| Metallographic detector | X-ray inspection | Dye penetrant inspection | 100% Thread inspection |
FAQ
| Q1 | Are you factory or trading company? |
| A1 | We are factory located in HangZhou city, China |
| Q2 | What kinds of language is avaliable? |
| A2 | English, Chinese, except email cummunication, we are ok with video meeting and calling. |
| Q3 | How should I place an order? |
| A3 | We are receive the PO and production drawing by email. |
| Q4 | Which shipping methed is ok for you? |
| A4 | Normally shipping by sea and train is use for mass production order delivery. DHL,TNT,FedEx, UPS,EMS air shipment is use for sample delivery. |
| Q5 | How can I contact you? |
| A5 | You can contact us by email, and also we can chat by Skype, Teams, WhatsApp, Facebook. |
| Q6 | What kinds of drawing format can be use? |
| A6 | PRO/E, Auto CAD, CZPT Works, IGS, UG, CAD/CAM/CAE, STEP. |
| Q7 | Which packing material do you use for sea shipping? |
| A7 | For sea shipping, we will packaging with European standard wooden pallet. The parts will packing with PE bag inside the carton box. |
| Q8 | How do you deal with the RFQ? |
| A8 | Sales receiving the RFQ—Feasiblity study meeting with R&D engineer—Feed back technical issues with Customer—Sales quoted |
| Casting Method: | Thermal Gravity Casting |
|---|---|
| Process: | Investment Casting |
| Molding Technics: | Gravity Casting |
| Application: | Valve / Pump |
| Material: | Alloy Steel |
| Surface Preparation: | Shot Blasting |
| Customization: |
Available
| Customized Request |
|---|

What Is a Coupling?
A coupling is a mechanical device that links two shafts together and transmits power. Its purpose is to join rotating equipment while permitting a small amount of misalignment or end movement. Couplings come in a variety of different types and are used in a variety of applications. They can be used in hydraulics, pneumatics, and many other industries.
Types
Coupling is a term used to describe a relationship between different modules. When a module depends on another, it can have different types of coupling. Common coupling occurs when modules share certain overall constraints. When this type of coupling occurs, any changes to the common constraint will also affect the other modules. Common coupling has its advantages and disadvantages. It is difficult to maintain and provides less control over the modules than other types of coupling.
There are many types of coupling, including meshing tooth couplings, pin and bush couplings, and spline couplings. It is important to choose the right coupling type for your specific application to get maximum uptime and long-term reliability. Listed below are the differences between these coupling types.
Rigid couplings have no flexibility, and require good alignment of the shafts and support bearings. They are often used in applications where high torque is required, such as in push-pull machines. These couplings are also useful in applications where the shafts are firmly attached to one another.
Another type of coupling is the split muff coupling. This type is made of cast iron and has two threaded holes. The coupling halves are attached with bolts or studs.
Applications
The coupling function is an incredibly versatile mathematical tool that can be used in many different scientific domains. These applications range from physics and mathematics to biology, chemistry, cardio-respiratory physiology, climate science, and electrical engineering. The coupling function can also help to predict the transition from one state to another, as well as describing the functional contributions of subsystems in the system. In some cases, it can even be used to reveal the mechanisms that underlie the functionality of interactions.
The coupling selection process begins with considering the intended use of the coupling. The application parameters must be determined, as well as the operating conditions. For example, if the coupling is required to be used for power transmission, the design engineer should consider how easily the coupling can be installed and serviced. This step is vital because improper installation can result in a more severe misalignment than is specified. Additionally, the coupling must be inspected regularly to ensure that the design parameters remain consistent and that no detrimental factors develop.
Choosing the right coupling for your application is an important process, but it need not be difficult. To find the right coupling, you must consider the type of machine and environment, as well as the torque, rpm, and inertia of the system. By answering these questions, you will be able to select the best coupling for your specific application.
Problems
A coupling is a device that connects two rotating shafts to transfer torque and rotary motion. To achieve optimal performance, a coupling must be designed for the application requirements it serves. These requirements include service, environmental, and use parameters. Otherwise, it can prematurely fail, causing inconvenience and financial loss.
In order to prevent premature failure, couplings should be properly installed and maintained. A good practice is to refer to the specifications provided by the manufacturer. Moreover, it is important to perform periodic tests to evaluate the effectiveness of the coupling. The testing of couplings should be performed by qualified personnel.

editor by CX 2023-06-09