Product Description
Xihu (West Lake) Dis. Dingli Steel Sleeve Co., Ltd
Add: Xihu (West Lake) Dis., HangZhou City, ZheJiang Province, HangZhou, ZheJiang , China
Product Parameters
Standard rebar couplers made by raw material 45# carbon steel with competitive price and divided into standard couplers, positional rebar couplers, and transition rebar couplers.
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Name: |
Thread Rebar Couplers Standard Type |
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Used for Rebar: |
HRB400/Grade 65/ and so on with rebar yield strength same as 500Mpa or lower than that. |
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Raw Material: |
S45C -yield strength 420Mpa, Tensile strength: 600-650MPa |
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Size: |
16mm/18mm/20mm/25mm/28mm/32mm/36mm/40mm |
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Packing: |
By bags and pallets packing, or wooden case packing as required (25KG smaller packing, 1700KG per pallet) |
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Sample: |
Free existing samples for checking dimension and quality |
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Production time: |
15-40 days based on different quantity after receive the prepayment |
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Shipping Port: |
Xihu (West Lake) Dis.g,ZheJiang Port, ZheJiang Port, China. |
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Payment Terms: |
TT / LC |
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Certificate: |
ISO/ CE |
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SIZE (mm) |
Out Diameter (mm) |
Length (mm) |
Pitch (mm) |
N.W (KG) |
PACKING IN ONE BAG (NOS) |
1 BAG WEIGHT (KG) |
Approvals/ Certificate |
|
|
16 |
24 |
42 |
2.5 |
0.092 |
250 |
23.00 |
CE / ISO |
|
|
18 |
27 |
45 |
2.5 |
0.136 |
200 |
27.20 |
CE / ISO |
|
|
20 |
30 |
50 |
2.5 |
0.159 |
132 |
20.98 |
CE / ISO |
|
|
22 |
33 |
54 |
2.5 |
0.21 |
121 |
25.41 |
CE / ISO |
|
|
25 |
38 |
62 |
3.0 |
0.34 |
80 |
27.20 |
CE / ISO |
|
|
28 |
42 |
68 |
3.0 |
0.46 |
56 |
25.76 |
CE / ISO |
|
|
32 |
48 |
76 |
3.0 |
0.633 |
42 |
26.58 |
CE / ISO |
|
|
36 |
53 |
84 |
3.0 |
0.905 |
27 |
24.43 |
CE / ISO |
|
|
40 |
59 |
95 |
3.0 |
1.16 |
25 |
29.00 |
CE / ISO |
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1. Standard rebar couplers Introduction
Standard rebar coupler belongs to Rolling technology, it is a parallel-thread mechanical splicing system used for the 16mm to 40mm reinforcing bars mechanical connections. This system is first peeling the rebar rib and then doing thread by cold rolling, this technology can meet with China standard of JGJ107-2571, USA standard of ACI318, UK standard of BS8110, VN standard of TCVN8163, and other international standards. The couplers can be divided into standard couplers with all right-hand thread, and also positional rebar coupler with 1 side left-hand thread another size right-hand thread, also it has transition couplers which 2 sides have different diameters. Also, this coupler has a competitive price over super couplers and is suitable for little lower rebar grades such as HRB400 or HRB500 rebar, it has full sizes from 16mm to 40mm.
2.45# steel carbon steel rebar couplers Features and advantages
a.Saving cost and easy operation than the lapping of rebar
b.One time loading can finish the rib peeling and thread rolling together.
c.Single step process, only 1 machine, 1 operator.
d.Assemble by visual inspection
e.Standard ISO parallel Metric Thread designs.
f.Used for many kinds of connections for a position or transition couplers
CPDL Rebar Coupler China Steel Rebar Coupler Manufacturers OEM/ODM On-demand Customized Rebar Splicing Coupler Wholesale Thread Rebar Couplers Standard Type
Product Description
FAQ
1. Q: Are you a trading company or manufacturer?
A: We are an original equipment manufacturer.
2. Q: How long is your delivery time?
A: It is according to the model and quantity.
Generally, it is 3-5 days if the products are in stock.
It will be 15-30 days if you want to customize the products
3. Q: What are your terms of payment?
A: We accept T/T, Western Union, Money Gram, PayPal, Alibaba Escrow, etc.
Payment<=USD 5000, 100% in advance.
Payment>=USD 5000, 30% T/T in advance, balance before shipment.
4. Q: Do you provide samples? Is it free or extra?
A: Yes, we could offer the sample for free charge, but clients do not need to pay the cost of freight.
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Comparing mechanical couplings with other types of couplings in performance.
Mechanical couplings are an essential component in power transmission systems, and they are often compared with other types of couplings based on their performance characteristics. Let’s explore how mechanical couplings compare with some other common coupling types:
1. Mechanical Couplings vs. Fluid Couplings:
Fluid couplings use hydraulic fluid to transmit torque between the input and output shafts. They offer smooth torque transmission and can act as a torque limiter, protecting the connected equipment from overloads. However, they have some energy losses due to fluid turbulence, which slightly reduces their efficiency compared to mechanical couplings. Mechanical couplings, on the other hand, provide direct and efficient torque transmission without any energy losses due to fluid friction.
2. Mechanical Couplings vs. Magnetic Couplings:
Magnetic couplings use magnetic fields to transfer torque from one shaft to another. They are commonly used in applications where a hermetic seal is required, such as in pumps and mixers. Magnetic couplings have the advantage of being completely leak-proof, unlike mechanical couplings that may require seals in certain applications. However, magnetic couplings have a lower torque capacity compared to many mechanical couplings, and their efficiency can be affected by variations in magnetic field strength and alignment.
3. Mechanical Couplings vs. Hydraulic Couplings:
Hydraulic couplings use hydraulic fluid to transmit torque. They offer high torque capacity and the ability to slip during overloads, acting as a safety feature. However, hydraulic couplings can have energy losses due to fluid friction, making them slightly less efficient than mechanical couplings. Mechanical couplings do not have energy losses related to fluid friction and provide direct torque transmission, making them more efficient in this regard.
4. Mechanical Couplings vs. Electrical Couplings:
Electrical couplings use electromagnetic fields to transfer torque. They are commonly used in high-precision and high-speed applications, such as robotics and aerospace systems. Electrical couplings can have high torque capacity and precise control over torque transmission. However, they require electrical power to function, which may not be suitable for all applications. Mechanical couplings are self-contained and do not require additional power sources, making them more suitable for various types of machinery and equipment.
5. Mechanical Couplings vs. Friction Couplings:
Friction couplings use friction between contacting surfaces to transmit torque. They are simple in design and can slip during overloads, providing protection against excessive loads. However, friction couplings can experience wear and require periodic maintenance. Mechanical couplings, depending on their type, may have a more robust design and may not experience as much wear under normal operating conditions.
In summary, mechanical couplings offer direct and efficient torque transmission without energy losses related to fluid friction or magnetic fields. While other coupling types may have specific advantages in certain applications, mechanical couplings remain a versatile and widely used choice in various industries due to their reliability, simplicity, and ease of maintenance.
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What are the temperature and environmental limits for mechanical couplings?
Mechanical couplings are designed to operate within specific temperature and environmental limits to ensure their performance and longevity. These limits can vary depending on the coupling type, materials, and the specific application. Here are some general considerations regarding temperature and environmental limits for mechanical couplings:
Temperature Limits:
Mechanical couplings are typically rated to handle a specific temperature range. Extreme temperatures can affect the mechanical properties of the coupling’s materials and lead to premature wear or failure.
High-Temperature Applications: In high-temperature environments, couplings made from materials with high-temperature resistance, such as stainless steel or high-temperature alloys, are often used. These couplings can withstand elevated temperatures without experiencing significant degradation.
Low-Temperature Applications: In low-temperature environments, special consideration must be given to the materials’ brittleness and the potential for reduced flexibility. Some couplings may require low-temperature lubricants or preheating to ensure proper operation in cold conditions.
Environmental Limits:
Mechanical couplings can be exposed to various environmental factors that may impact their performance. Manufacturers specify the environmental limits for their couplings, and it is essential to adhere to these guidelines.
Corrosive Environments: In corrosive environments, such as those with exposure to chemicals or saltwater, couplings made from corrosion-resistant materials, like stainless steel or nickel alloys, are preferred. Proper seals and coatings may also be necessary to protect the coupling from corrosion.
High Humidity or Moisture: Excessive humidity or moisture can lead to rust and corrosion, especially in couplings made from ferrous materials. In such environments, using couplings with proper corrosion protection or moisture-resistant coatings is advisable.
Outdoor Exposure: Couplings used in outdoor applications should be designed to withstand exposure to weather elements, such as rain, UV radiation, and temperature fluctuations. Enclosures or protective covers may be necessary to shield the coupling from environmental factors.
Special Applications:
Certain industries, such as food and pharmaceutical, have strict hygiene requirements. In such cases, couplings made from food-grade or hygienic materials are utilized to prevent contamination and meet regulatory standards.
It is crucial to consult the coupling manufacturer’s specifications and guidelines to determine the appropriate temperature and environmental limits for a specific coupling. Adhering to these limits ensures the coupling’s proper operation and longevity in its intended application, reducing the risk of premature wear and failures caused by extreme conditions.
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Advantages of using mechanical couplings in power transmission systems.
Mechanical couplings offer several advantages when used in power transmission systems, making them a preferred choice in various industrial applications. Some of the key advantages include:
- Torque Transmission: Mechanical couplings efficiently transmit torque from one shaft to another, enabling the transfer of power between different components of the system.
- Misalignment Compensation: Many mechanical couplings can accommodate axial, radial, and angular misalignments between connected shafts, ensuring smooth operation even when precise alignment is challenging to achieve or maintain.
- Vibration Damping: Some types of mechanical couplings, particularly flexible couplings, dampen vibrations caused by imbalances or load fluctuations. This feature reduces wear on components and improves overall system stability.
- Shock Absorption: Certain flexible couplings have the ability to absorb shocks and impacts, protecting the connected equipment from sudden force variations and preventing damage.
- Easy Installation: Mechanical couplings are generally easy to install and replace. Their modular design simplifies maintenance and reduces downtime in case of coupling failure.
- Load Distribution: Mechanical couplings evenly distribute the load between connected shafts, preventing premature wear and reducing the chances of component failure.
- Compact Design: Mechanical couplings come in various compact designs, allowing for efficient power transmission without adding significant bulk to the system.
- Customizability: Manufacturers offer a wide range of mechanical couplings with different sizes, materials, and features to meet specific application requirements, giving engineers the flexibility to choose the most suitable coupling for their systems.
- Cost-Effectiveness: Mechanical couplings are generally cost-effective compared to more complex power transmission methods, making them a practical choice for many industrial applications.
- Safety: Some mechanical couplings, like shear-pin or torque-limiting couplings, act as safety features, disconnecting or slipping when the system experiences overload, preventing damage to expensive components.
These advantages make mechanical couplings indispensable in power transmission systems across various industries, including manufacturing, automotive, aerospace, marine, and more. Their ability to efficiently transmit power, accommodate misalignments, and protect the equipment ensures reliable and smooth operation of mechanical systems, contributing to overall system performance and longevity.
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editor by CX 2024-02-20