Product Description
JS3500 Series Half Demount Flexible Grid Couplings
♦Description
The flexible nature of the spring-like mesh reduces the magnitude of CHINAMFG loads by dissipating and absorbing impact energy over time, and the short-term overload capacity is twice the rated torque, greatly increasing mesh coupling torque.
Widely used in heavy machinery and general machinery.
Allows higher speeds with good axial, radial and angular compensation capabilities.
High transmission efficiency. The transmission efficiency is as high as 99.47%.
Simple structure and convenient disassembly and assembly.
Good damping effect to avoid resonance.
♦Basic Parameter and Main Dimension
Type | Norminal Torque Nm |
Permit Speed r/min |
Hole d1,d2 | D | BE | A | F | L | Clearance K | Grease Kg |
Without bore Weight Kg |
||
max | min | min | max | ||||||||||
JS3501 | 45 | 3600 | 28 | 14 | 98 | 45 | 100 | 40 | 40 | 52 | 3 | 0.03 | 2.9 |
JS3502 | 125 | 3600 | 35 | 14 | 110 | 45 | 110 | 50 | 40 | 52 | 3 | 0.03 | 3.9 |
JS3503 | 224 | 3600 | 42 | 14 | 120 | 45 | 110 | 55 | 41 | 52 | 3 | 0.06 | 5.9 |
JS3504 | 400 | 3600 | 48 | 14 | 138 | 55 | 110 | 65 | 45 | 62 | 3 | 0.06 | 9 |
JS3505 | 630 | 3600 | 55 | 19 | 155 | 65 | 165 | 75 | 52 | 62 | 3 | 0.09 | 13.5 |
JS3506 | 900 | 3600 | 65 | 19 | 170 | 65 | 165 | 90 | 55 | 62 | 3 | 0.09 | 17.5 |
JS3507 | 1800 | 3500 | 75 | 28 | 195 | 95 | 205 | 105 | 66 | 112 | 4 | 0.17 | 28.5 |
JS3508 | 3150 | 3500 | 85 | 28 | 212 | 95 | 205 | 125 | 70 | 112 | 4 | 0.26 | 42.5 |
JS3509 | 5600 | 2450 | 100 | 42 | 248 | 105 | 205 | 140 | 142 | 6 | 0.43 | 70.5 | |
JS3510 | 8000 | 2300 | 110 | 42 | 274 | 105 | 205 | 160 | 142 | 6 | 0.51 | 95 | |
JS3511 | 12500 | 2000 | 125 | 60 | 324 | 125 | 205 | 180 | 142 | 6 | 0.74 | 138 | |
JS3512 | 18000 | 1800 | 150 | 70 | 368 | 130 | 205 | 220 | 172 | 6 | 0.91 | 187 | |
JS3513 | 25000 | 1600 | 180 | 70 | 400 | 135 | 205 | 255 | 172 | 6 | 1.14 | 257 | |
JS3514 | 35500 | 1500 | 200 | 110 | 458 | 175 | 190 | 270 | 212 | 6 | 1.9 | 340 | |
JS3515 | 50000 | 1300 | 220 | 120 | 500 | 180 | 205 | 305 | 212 | 6 | 2.8 | 430 | |
JS3516 | 63000 | 1200 | 250 | 130 | 565 | 195 | 225 | 360 | 252 | 6 | 3.5 | 636 | |
JS3517 | 90000 | 1100 | 275 | 610 | 200 | 250 | 395 | 252 | 6 | 3.7 | 852 | ||
JS3518 | 125000 | 1000 | 305 | 675 | 210 | 270 | 440 | 302 | 6 | 4.4 | 1118 | ||
JS3519 | 180000 | 900 | 330 | 755 | 225 | 290 | 500 | 302 | 6 | 5.6 | 1445 |
Note: d1 is specified as the molecule(active end dimension) in the marking example, please specify otherwise if the user has special requirements.
♦Other Products List
Transmission Machinery Parts Name |
Model |
Universal Coupling | WS,WSD,WSP |
Cardan Shaft | SWC,SWP,SWZ |
Tooth Coupling | CL,CLZ,GCLD,GIICL, GICL,NGCL,GGCL,GCLK |
Disc Coupling | JMI,JMIJ,JMII,JMIIJ |
High Flexible Coupling | LM |
Chain Coupling | GL |
Jaw Coupling | LT |
Grid Coupling | JS |
♦Our Company
HangZhou CHINAMFG Machinery Manufacturing Co., Ltd. is a high-tech enterprise specializing in the design and manufacture of various types of coupling. There are 86 employees in our company, including 2 senior engineers and no fewer than 20 mechanical design and manufacture, heat treatment, welding, and other professionals.
Advanced and reasonable process, complete detection means. Our company actively introduces foreign advanced technology and equipment, on the basis of the condition, we make full use of the advantage and do more research and innovation. Strict to high quality and operate strictly in accordance with the ISO9000 quality certification system standard mode.
Our company supplies different kinds of products. High quality and reasonable price. We stick to the principle of “quality first, service first, continuous improvement and innovation to meet the customers” for the management and “zero defect, zero complaints” as the quality objective.
♦Our Services
1.Design Services
Our design team has experience in cardan shaft relating to product design and development. If you have any needs for your new product or wish to make further improvements, we are here to offer our support.
2.Product Services
Raw materials → Cutting → Forging →Rough machining →Shot blasting →Heat treatment →Testing →Fashioning →Cleaning→ Assembly→ Packing→ Shipping
3.Samples Procedure
We could develop the sample according to your requirement and amend the sample constantly to meet your need.
4.Research & Development
We usually research the new needs of the market and develop the new model when there is new cars in the market.
5.Quality Control
Every step should be special test by Professional Staff according to the standard of ISO9001 and TS16949.
♦FAQ
Q 1: Are you trading company or manufacturer?
A: We are a professional manufacturer specializing in manufacturing various series of couplings.
Q 2: Can you do OEM?
Yes, we can. We can do OEM & ODM for all the customers with customized artworks of PDF or AI format.
Q 3: How long is your delivery time?
Generally it is 20-30 days if the goods are not in stock. It is according to quantity.
Q 4: Do you provide samples? Is it free or extra ?
Yes, we could offer the sample but not for free.Actually we have a very good price principle, when you make the bulk order then cost of sample will be deducted.
Q 5: How long is your warranty?
A: Our Warranty is 12 months under normal circumstance.
Q 6: What is the MOQ?
A: Usually our MOQ is 1 pcs.
Q 7: Do you have inspection procedures for coupling ?
A: 100% self-inspection before packing.
Q 8: Can I have a visit to your factory before the order?
A: Sure,welcome to visit our factory.
Q 9: What’s your payment?
A: T/T.
♦Contact Us
Web: huadingcoupling
Add: No.11 HangZhou Road,Chengnan park,HangZhou City,ZheJiang Province,China
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Can a Half Coupling be Threaded or Welded onto Pipes?
Yes, a half coupling can be both threaded and welded onto pipes in piping and plumbing systems. The method of attachment depends on the type of half coupling and the specific application requirements.
Threaded Half Coupling: Threaded half couplings have internal threads on one end, allowing for easy connection to pipes with matching external threads. To install a threaded half coupling, the larger end with internal threads is screwed onto the male threads of the larger diameter pipe. The smaller pipe is then threaded into the other end of the half coupling, creating a secure and leak-proof joint. Threaded half couplings are commonly used when frequent disassembly may be required or when connecting components like valves or instruments to the pipeline.
Socket Weld Half Coupling: Socket weld half couplings have a socket on one end, which allows for the insertion of the pipe without threading. The joint is then welded for a strong and permanent connection. The larger diameter pipe is inserted into the socket, and a fillet weld is applied around the outside of the coupling to secure the smaller pipe. Socket weld half couplings are often used in high-pressure applications and systems that require a robust and reliable connection.
Butt Weld Half Coupling: Butt weld half couplings are designed for butt welding, which involves welding the coupling directly to the larger pipe end. The smaller pipe is inserted into the other end of the half coupling, and a butt weld is applied to secure the joint. Butt weld half couplings are commonly used in critical applications where a smooth and continuous inner surface is required to prevent turbulence and pressure losses.
The choice between threaded and welded half couplings depends on factors such as the operating conditions, the type of fluid being transported, and the required joint strength. Threaded half couplings offer ease of installation and disassembly, making them suitable for applications where frequent maintenance is needed. On the other hand, socket weld and butt weld half couplings provide permanent and strong connections, making them suitable for high-pressure and critical systems.
Regardless of the method of attachment, it is essential to ensure proper installation and adherence to industry standards to achieve a secure and leak-free connection. Regular inspection and maintenance of the half couplings and the entire piping system are also necessary to detect any signs of wear, corrosion, or damage and address them promptly.
How do you Calculate the Required Size and Specifications for a Half Coupling?
Calculating the required size and specifications for a half coupling involves considering several factors related to the piping system and the intended application. Here’s a step-by-step guide on how to calculate the size and specifications:
- Identify the Pipe Size: Determine the size of the pipe to which the half coupling will be connected. The pipe size is usually specified in inches and represents the nominal diameter of the pipe.
- Consider the Pipe Material: Know the material of the pipe, such as carbon steel, stainless steel, PVC, copper, or others. The half coupling material should be compatible with the pipe material to avoid any galvanic corrosion or other issues.
- Assess the Operating Pressure: Determine the maximum operating pressure of the system in which the half coupling will be used. The half coupling should have a pressure rating that exceeds the maximum operating pressure to ensure safety and reliability.
- Calculate the Torque Requirements: For threaded half couplings, calculate the required torque for proper thread engagement. The torque calculation involves considering the thread pitch, thread diameter, and the material of the pipe and coupling.
- Check the Temperature Range: Evaluate the temperature range in which the half coupling will be operating. Ensure that the material chosen can withstand the maximum and minimum temperatures of the system without any adverse effects.
- Account for Environmental Factors: Consider any environmental factors that may affect the half coupling’s performance, such as exposure to chemicals, UV radiation, or extreme weather conditions. Select a material and coating, if necessary, to protect the coupling from environmental degradation.
- Verify Compliance with Standards: Ensure that the selected half coupling meets relevant industry standards and specifications, such as ASME, ASTM, API, or ISO, to guarantee its quality and performance.
- Factor in the Application: Consider the specific application of the half coupling, such as its use in a water supply system, chemical process, high-pressure pipeline, or industrial equipment. The application requirements will influence the material selection, pressure rating, and other specifications.
- Consult with Experts: If unsure about the calculations or specifications, consult with piping system experts or engineers who can provide guidance and ensure the proper selection of the half coupling based on the system’s requirements.
By following these steps and carefully considering the pipe size, material, pressure, torque, temperature, environmental conditions, compliance with standards, application, and seeking expert advice when needed, you can accurately calculate the required size and specifications for a half coupling that will perform optimally in the piping system.
What are the Various Types of Half Couplings and Their Specific Applications?
Half couplings come in different types, each designed to cater to specific applications and requirements in piping and plumbing systems. The various types of half couplings and their specific applications are as follows:
- Threaded Half Couplings: Threaded half couplings have internal threads on one end, allowing for easy connection to pipes with matching external threads. These couplings are commonly used in applications where a secure and leak-proof joint is needed, such as connecting valves, instruments, or equipment to the pipeline.
- Socket Weld Half Couplings: Socket weld half couplings have a socket on one end, which allows for the insertion of the pipe without threading. The joint is then welded for a strong and permanent connection. Socket weld half couplings are widely used in high-pressure applications and systems that require frequent disassembly.
- Butt Weld Half Couplings: Butt weld half couplings are designed for butt welding, which involves welding the coupling directly to the larger pipe end. The other end can be used to attach a smaller pipe. These couplings are commonly used in critical applications where a smooth and continuous inner surface is required to prevent turbulence and pressure losses.
- Reducing Half Couplings: Reducing half couplings are used when a transition between different pipe sizes is needed. One end of the coupling has larger threads or a larger socket to accommodate a larger pipe, while the other end has smaller threads or a smaller socket to connect a smaller pipe. These couplings are commonly used in systems that require a change in pipe size, such as reducing the flow rate or connecting equipment with different pipe sizes.
- Mechanical Grip Half Couplings: Mechanical grip half couplings use a mechanical mechanism to grip and secure the smaller pipe without welding or threading. They are commonly used in temporary connections or situations where frequent disassembly is necessary, such as in temporary test setups or during equipment maintenance.
The choice of half coupling type depends on the specific application, the pipe materials, the operating conditions, and the required joint strength. It is essential to follow industry standards and guidelines when selecting the appropriate type of half coupling to ensure the safety and efficiency of the piping or plumbing system.
In summary, various types of half couplings cater to different needs in piping and plumbing systems. Whether for permanent connections, temporary applications, or transitions between different pipe sizes, half couplings offer versatile solutions for joining pipes securely and efficiently.
editor by CX 2024-03-27