G411 US Type Standard Thimble is a metal accessory commonly used in the fields of industry and maritime. It is mainly used to protect the eyelets of ropes and cables to prevent them from being damaged by friction, wear or concentrated force during use, thereby extending the service life of the ropes and ensuring operational safety. The thimble is manufactured in accordance with relevant US standards, with a U-shaped or C-shaped appearance and an opening design that facilitates the insertion of ropes. Carbon steel or stainless steel is mostly used as the material. Carbon steel has a lower cost and has a certain degree of corrosion resistance after surface treatment (such as hot-dip galvanizing), which is suitable for general industrial environments; stainless steel (such as 304, 316) has strong corrosion resistance. 304 can cope with ordinary humid environments, while 316 performs well in high-corrosion scenarios such as oceans and chemicals.
Stock no. | Size(in) | A(in) | B(in) | L(in) | T(in) | DiaφCable(in) |
HS4040201 | 1/8 | 0.16 | 0.69 | 1.31 | 0.05 | 1/8 |
HS4040202 | 3/16 | 0.22 | 0.69 | 1.31 | 0.05 | 3/16 |
HS4040203 | 1/4 | 0.28 | 0.69 | 1.31 | 0.05 | 1/4 |
HS4040204 | 5/16 | 0.34 | 0.81 | 1.5 | 0.05 | 5/16 |
HS4040205 | 3/8 | 0.41 | 0.94 | 1.63 | 0.06 | 3/8 |
HS4040206 | 1/2 | 0.53 | 1.13 | 1.88 | 0.08 | 1/2 |
HS4040207 | 5/8 | 0.66 | 1.38 | 2.25 | 0.13 | 5/8 |
HS4040208 | 3/4 | 0.78 | 1.63 | 2.5 | 0.14 | 3/4 |
HS4040209 | 7/8 | 0.94 | 1.88 | 3.5 | 0.16 | 7/8 |
HS4040210 | 1 | 1.06 | 2.5 | 4.25 | 0.16 | 1 |
HS4040211 | 1-1/8 | 1.31 | 2.75 | 4.5 | 0.22 | 1-1/8 |
Diverse materials and wide application: Carbon steel ferrules are affordable. After hot-dip galvanizing, they can effectively resist rust and reduce costs in ordinary industrial and construction environments. Stainless steel ferrules, 304 stainless steel has good corrosion resistance and oxidation resistance, and are stable and durable in general outdoor and indoor humid environments; 316 stainless steel contains molybdenum elements, and its resistance to salt spray, acid and alkali is particularly outstanding. It is an ideal choice for highly corrosive environments such as marine operations and chemical production, ensuring that it will not rust or damage after long-term use.
Strict standards and high precision: Strictly follow the production of American standards. The inner diameter, outer diameter, and overall structural dimensions of the ferrule have extremely high precision requirements, and are precisely matched with various standard rope specifications. This makes the rope easy to install, can fit tightly inside the ferrule, reduce shaking and displacement, ensure a stable connection, and facilitate standardized application and bulk purchase in various projects that follow American standards.
Reasonable structure and strong protection: U-shaped or C-shaped structure design, the opening is convenient for the rope to quickly penetrate. The interior is smooth, and the rope has very little friction with it during movement, which greatly reduces the risk of wear on the outer layer of the rope. The edge of the collar is polished without sharp corners, which can prevent accidental injuries to operators and avoid scratches on surrounding equipment and object surfaces.
Marine and ship operations: In ship construction and maintenance, it is used to fix the connection point between the cable and the hull, protect the cable from wear on the edge of the hull, and ensure the safety of the ship when mooring and sailing; connect fishing nets and fishing boats, withstand the huge pulling force of fishing nets during fishing operations, and the stainless steel ring can resist long-term erosion by seawater; on offshore oil drilling platforms, fix various types of pipelines and safety ropes to ensure stable operation of equipment in harsh marine environments.
Industrial manufacturing scenarios: When lifting equipment in factory workshops, it is installed between the wire rope and the hook to prevent the rope from being damaged due to direct friction with the hook and ensure lifting safety; in automated production lines, it fixes the connecting rope of the transmission belt to ensure smooth operation of the belt and improve production efficiency; in the mining industry, it connects the wire rope of the lifting equipment to withstand the strong pulling force during the lifting of heavy objects and adapt to the harsh environment of humidity and dust in the mine.
Construction field: On construction sites, when lifting building materials (such as precast concrete components and steel beams), the ring protects the wire rope and prolongs its service life; when building scaffolding, it is used to connect the rope and the scaffolding steel pipe to enhance the connection stability and ensure the safety of construction workers; in the construction of the exterior wall of high-rise buildings, the hanging rope of the hanging basket is fixed to ensure the safety of the hanging basket during the lifting process.
Outdoor and leisure activities: When camping, it can be used to fix the tent rope to make it more firmly rooted in the ground and resist outdoor wind; in rock climbing, it connects the climbing rope and the protection device to protect the rope from rock wear and provide reliable safety protection for rock climbers; in outdoor sports venues, it fixes the connecting ropes of sports facilities, such as swings, climbing frames, etc., to ensure the stability of the facilities.
Q1: How to choose the appropriate specification of G411 American standard ferrule?
A: First, accurately measure the diameter of the rope to be used, and choose a ferrule with an inner diameter slightly larger than the rope diameter to ensure that the rope can be easily inserted and there is a certain amount of space between the two, but the gap should not be too large, otherwise it will affect the protection effect. At the same time, according to the maximum tension in the actual use scenario, refer to the bearing capacity parameters of the ferrule, and choose a product with a bearing capacity several times the maximum tension (the recommended safety factor is 3-5 times) to ensure safe use. In addition, the installation space must be considered to ensure that the ferrule can adapt to the installation position.
Q3: What impact does the material of the ferrule have on its use?
A: Carbon steel material has low cost and has a certain rust resistance after hot-dip galvanizing and other treatments. It is suitable for general industrial and construction environments. Stainless steel materials (304, 316) have strong corrosion resistance. 304 is suitable for ordinary outdoor and indoor humid environments; 316 performs well in highly corrosive environments such as oceans and chemicals. If a carbon steel ferrule is used in a highly corrosive environment, it is easy to rust and damage, affecting the safety of the rope connection; while excessive use of stainless steel ferrules in a general environment may cause cost waste.
Q3: If the ferrule is deformed during use, can it still be used?
A: If the ferrule is slightly deformed, and the deformation does not affect the normal insertion and fixation of the rope, and does not cause a significant decrease in the carrying capacity (which can be judged by professional testing or comparison with a new ferrule), it can continue to be used under close observation, but the inspection cycle needs to be shortened. If the deformation is serious, such as the opening is too large and the whole is twisted, it will reduce the protection effect of the rope, and it may even break when under stress. At this time, it must be stopped immediately and replaced with a new ferrule to avoid safety accidents.
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