Product Description

WELCOME TO SUIJIN

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 CHINAMFG 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, CHINAMFG 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

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sleeve coupling

Can Sleeve Couplings be Used in Corrosive or Harsh Environments without Compromising Performance?

Sleeve couplings can be used in corrosive or harsh environments, but their performance may be compromised if not properly selected or protected. The choice of materials and design features plays a crucial role in ensuring the coupling’s durability and performance in challenging conditions. Here’s how sleeve couplings can handle corrosive or harsh environments:

1. Material Selection: The selection of materials is crucial when considering sleeve couplings for corrosive environments. Stainless steel or corrosion-resistant alloys are commonly used to ensure the coupling’s resistance to corrosion. These materials have inherent properties that make them less susceptible to the damaging effects of chemicals, moisture, and harsh substances.

2. Coatings and Surface Treatments: Applying protective coatings or surface treatments to the coupling components can further enhance their resistance to corrosion. Coatings like zinc plating or special chemical treatments create a barrier that shields the coupling from corrosive agents.

3. Sealed and Enclosed Designs: In highly corrosive environments, sleeve couplings with sealed or enclosed designs can provide an additional layer of protection. Seals or covers prevent corrosive substances from reaching critical components, extending the coupling’s lifespan.

4. Regular Maintenance and Inspection: Performing regular maintenance and inspections are essential to ensure the coupling remains in optimal condition. Regular cleaning, lubrication, and inspection for signs of wear or corrosion help identify potential issues and prevent premature failure.

5. Custom Solutions: In some cases, custom-designed sleeve couplings may be necessary to address specific challenges posed by corrosive or harsh environments. Coupling manufacturers can work with engineers to develop tailored solutions that meet the application’s unique requirements.

It’s essential to consider the severity and duration of exposure to corrosive substances when choosing a sleeve coupling for harsh environments. In extremely aggressive conditions, special alloys or non-metallic materials may be required to ensure long-lasting performance.

In summary, sleeve couplings can be used in corrosive or harsh environments without compromising performance by selecting appropriate materials, using protective coatings, opting for sealed designs, performing regular maintenance, and considering custom solutions when necessary. Properly designed and maintained sleeve couplings can provide reliable and efficient power transmission in challenging industrial applications.

sleeve coupling

What are some Real-world Examples of Successful Sleeve Coupling Installations and their Benefits?

There are numerous real-world examples of successful sleeve coupling installations in various industries, each demonstrating the benefits of using these couplings in different applications. Here are some examples:

  • Pump Systems: Sleeve couplings are commonly used in pump systems to connect the motor shaft to the pump impeller. The simplicity and ease of installation of sleeve couplings make them a popular choice in this application. Benefits include reliable power transmission, easy maintenance, and cost-effectiveness.
  • Conveyor Systems: In conveyor systems, sleeve couplings are used to connect the conveyor motor to the driving pulley shaft. The ability to accommodate misalignment and the low maintenance requirements of sleeve couplings contribute to the smooth operation and long service life of these systems.
  • Automation Machinery: Sleeve couplings play a crucial role in various automation machinery, such as robotics and CNC machines. Their compact design and torsional flexibility ensure precise motion control and efficient power transmission.
  • Industrial Mixers and Agitators: Sleeve couplings are used in mixers and agitators to connect the motor shaft to the mixing impeller or agitator. The ability to handle misalignment and dampen vibrations helps improve the equipment’s performance and reliability.
  • Machine Tools: In machine tools, such as lathes and milling machines, sleeve couplings are utilized for connecting the motor to the tool’s spindle. The backlash-free characteristics of some sleeve couplings contribute to the precision and accuracy of machining operations.
  • Automotive Industry: In the automotive industry, sleeve couplings are used in various components, such as windshield wipers, power windows, and power seats. Their compact size and ease of installation make them suitable for these automotive applications.
  • Printing Equipment: Sleeve couplings are commonly used in printing presses to connect the motor to various rollers and cylinders. The simple design and reliable performance of sleeve couplings contribute to the efficiency of printing processes.

The benefits of sleeve couplings in these real-world examples include:

  • Easy Installation: Sleeve couplings are easy to install, reducing downtime during equipment assembly or maintenance.
  • Misalignment Compensation: Sleeve couplings can accommodate minor misalignments, reducing the risk of shaft damage and increasing the equipment’s lifespan.
  • Vibration Damping: Sleeve couplings dampen vibrations and shocks, minimizing stress on connected components and extending their service life.
  • Cost-effectiveness: Sleeve couplings offer a cost-effective solution for many power transmission applications, making them a popular choice in various industries.
  • Low Maintenance: Sleeve couplings require minimal maintenance, leading to reduced operating costs and increased productivity.
  • Torsional Flexibility: The torsional flexibility of sleeve couplings allows for smooth power transmission, reducing the risk of equipment damage due to sudden torque spikes.

These real-world examples demonstrate how sleeve couplings contribute to the efficiency, reliability, and performance of diverse mechanical systems in numerous industrial settings.

sleeve coupling

What is a Sleeve Coupling, and How is it Used in Mechanical Power Transmission?

A sleeve coupling is a type of flexible coupling used in mechanical power transmission to connect two shafts and transmit torque between them. It consists of a hollow cylindrical sleeve with an inner diameter that matches the shafts’ outer diameters. The sleeve coupling is placed over the ends of the shafts, and its flexibility allows for some misalignment between the shafts while transmitting rotational power from one shaft to the other.

The sleeve coupling is a simple and cost-effective coupling solution commonly used in various industrial applications. Its design allows for easy installation and maintenance, making it suitable for applications where frequent shaft disconnection and reconnection are required.

Here’s how a sleeve coupling works in mechanical power transmission:

  1. Shaft Connection:

    The sleeve coupling connects two shafts that need to be linked together to transmit power.

  2. Flexible Design:

    The flexibility of the sleeve coupling allows for some angular and axial misalignment between the shafts. This flexibility is achieved due to the clearance between the inner diameter of the sleeve and the outer diameter of the shafts.

  3. Torque Transmission:

    When one shaft rotates, it transfers torque to the sleeve coupling. The flexible nature of the coupling allows it to compensate for minor misalignments and still transmit torque smoothly to the other shaft.

  4. Reduced Vibration and Shock Absorption:

    The flexibility of the sleeve coupling also helps dampen vibrations and absorb shocks, preventing them from transferring between the connected shafts. This feature contributes to the smooth and efficient operation of the connected machinery.

  5. Limitations:

    Sleeve couplings have their limitations, including lower torsional stiffness compared to other coupling types, which may limit their use in precision applications with high torque and speed requirements. Additionally, sleeve couplings are not suitable for applications with significant misalignments or when precise angular alignment is crucial.

In summary, a sleeve coupling is a flexible and straightforward coupling used in mechanical power transmission to connect two shafts while allowing for some misalignment. Its simple design and ability to absorb shocks and dampen vibrations make it a popular choice for various industrial applications where precision alignment is not critical.

China factory China CHINAMFG Grout Sleeve Moment Coupling for Rebar Mounting in Building  China factory China CHINAMFG Grout Sleeve Moment Coupling for Rebar Mounting in Building
editor by CX 2024-02-05