US type G2130 bow shackle

US Type G2130 Bow Shackle is a classic bow shackle built in accordance with relevant US standards and is widely used in the global industrial field. Its main bow ring is forged from high-quality alloy steel, with a pin and a stable anti-drop component. Common material processing methods are hot-dip galvanizing and electro-galvanizing to enhance corrosion resistance in different environments. After treatment, the carbon steel material is suitable for most conventional industrial scenarios; the specially customized stainless steel version can work stably in high humidity and highly corrosive environments, such as marine operating areas. The rated working load ranges from 0.5 tons to 85 tons, and the safety factor is usually 4-6 times, ensuring safe use under various working conditions. Its unique bow structure design allows flexible load bearing within a certain angle range, and is often used to connect wire ropes, chains and various slings.

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Product Data

Stock no.	SIZE	D (mm)	D1 (mm)	A (mm)	B (mm)	F (mm)
HS4010801	3/16	5	6	22.5	9.6	15.3
HS4010802	1/4	6	8	28.5	12	19.8
HS4010803	5/16	8	10	31	13.5	21.5
HS4010804	3/8	10	12	36.5	16.8	26.2
HS4010805	7/16	11	12.7	43	19	29.5
HS4010806	1/2	12	14	48	20.5	33
HS4010807	1/2	12.7	16	48	20.5	33
HS4010808	9/16	14	16	54	24	38
HS4010809	5/8	16	18	60	27	43
HS4010810	5/8	16	19	60	27	43
HS4010811	3/4	19	22	71.5	32	51
HS4010812	7/8	22	25	84	36.5	58
HS4010813	1'	25	28	95	43	68
HS4010814	1-1/8	28	32	108	46	73
HS4010815	1-1/4	32	35	119	52	82
HS4010816	1-1/2	38	42	146	61	98

Product Details

US Type G2130 Bow Shackle Features

Bow-shaped structure, flexible force bearing: The carefully designed bow ring can bear lateral loads within the range of ±35°. When subjected to vertical force, it can reach the rated load capacity; when the force angle is 35°, it can still maintain 80% of the rated load capacity. Compared with the D-type shackle that can only bear vertical force, the G2130 is more adaptable to complex angle connection scenarios such as the lifting of irregular objects and the multi-angle installation of building structural parts, which greatly expands its scope of use.
One-piece forging, strong fatigue resistance: The bow ring and the pin shaft adopt an integrated forging process, and the internal metal structure is uniform and consistent, without welding gaps, pores, sand holes and other defects. After professional fatigue testing, it can withstand more than 100,000 cyclic loads (±1.1 times the rated load), and its service life is more than 3 times longer than that of welded shackles. It is particularly suitable for frequent loading and unloading at ports, high-intensity operations in mines and other frequently used scenarios.
Stable and easy to operate: The pin is equipped with multiple anti-slip structures such as "nut + cotter pin" or "bolt + self-locking nut". In environments with strong vibrations such as ship navigation and heavy machinery operations, the probability of the pin loosening is strictly controlled to ≤0.5%. The pin ends are mostly designed with easy-to-operate hexagonal or round heads, which are well compatible with standard wrenches. The installation and disassembly process can be completed by one person within 1 minute, which greatly improves work efficiency and reduces operation time costs.
Details are optimized and fully protected: The inner side of the bow ring and the surface of the pin are finely polished, with a roughness of Ra≤2.0μm. This reduces the wear rate by 25% compared to ordinary shackles when in contact with the wire rope, effectively extending the service life of the wire rope. At the same time, the gap between the pin and the ring body is precisely controlled to ≤0.3mm, and it is stable and shake-free after connection, which can effectively reduce the wear of components caused by high-frequency vibration, thereby reducing the maintenance cost of the equipment.

US Type G2130 Bow Shackle Applications

Construction Industry: At construction sites, it is a powerful tool for tower cranes to lift heavy construction materials such as precast concrete components and large steel beams. The 10-30 ton G2130 bow shackle is suitable for the inclined pulling operation of the lifting belt. Its multi-angle force characteristics can effectively prevent the lifting equipment from twisting during the lifting process, providing reliable protection for lifting safety. In the construction of high-rise building scaffolding, it is used to connect the scaffolding components with the lifting equipment. The quick loading and unloading function of the pin shaft can significantly speed up the progress of construction and dismantling and improve construction efficiency.
Shipbuilding and maintenance: In the shipbuilding process, the 5-20 ton G2130 shackle is used to connect the lifting equipment with the ship parts. The bow ring allows the lifting belt to be inclined within a certain angle (≤35°), which can meet the lifting needs of the complex space inside the ship. In the ship maintenance scenario, it can be used to lift and replace large equipment such as engines and propellers. It is easy to operate and can meet the requirements of efficient and safe ship maintenance work.
Mechanical manufacturing and logistics transportation: In mechanical manufacturing factories, when transporting large mechanical parts, the G2130 American bow shackle is used to connect the crane and the lifting lug of the parts. Its reliable load-bearing capacity and flexible force angle can ensure the smooth and safe handling of parts. In the logistics industry, especially when transporting heavy equipment such as large transformers and generators, the G2130 shackle is used to connect the transport vehicle and the cargo fixing device to ensure the stability of the goods during transportation and prevent the goods from shifting or falling during transportation.
Energy mining field: In the oil and gas mining industry, it is often used to lift drilling equipment, downhole tools, etc. The 15-50 ton G2130 shackle can meet the lifting needs of equipment of different weights, and its high strength and reliability provide strong support for the safe operation of mining operations. In the construction of wind farms, it is used to hoist large components such as wind turbine blades and towers. Its high safety factor and good force performance can adapt to the stringent requirements of high-altitude and heavy-weight hoisting operations, ensuring the smooth installation of wind power facilities.

FAQ

Q1: What is the difference between the G2130 bow shackle and other types of American bow shackles?

A: Compared with some American bow shackles, the biggest structural feature of the G2130 is that it uses bolts and nuts with cotter pins for fastening, which is more stable and has better anti-slip performance than some pin-type connections. In terms of load capacity, different models vary according to size and grade. The load range of G2130 is wider, from 0.5 tons to 85 tons. Under the same load level, the volume and weight of G2130 may vary depending on the design. Generally speaking, it has a compact structure while ensuring strength. In terms of price, due to its manufacturing process and performance characteristics, the G2130 may be 10% - 20% higher than some basic models of American bow shackles.
Q3: Can the G2130 bow shackle be used at an angle exceeding 35°?

A: Not recommended. When the use angle exceeds 35°, the actual load-bearing capacity of the shackle will drop significantly, and at 60° it is only 60% of the rated value. This will greatly increase the risk of ring deformation or pin breakage. If it is really necessary to connect at a large angle, a special large-angle rotating shackle should be used, or an adapter ring should be added to adjust the force direction. At the same time, the safety factor of the entire connection system must be not less than 3.5 to ensure the safety of the operation.
Q3: What should I do if the pin nut is rusted and difficult to remove?

A: First, soak the rusted part with kerosene or a special rust remover for 2-3 hours to fully soften the rust layer. Then, use an appropriate wrench and gently tap the nut with a hammer, but pay special attention to controlling the tapping force to avoid damage to the ring. This vibration method assists in loosening the thread. If the above method still fails to disassemble successfully, you can consider using low-temperature heating, such as using a hot air gun to heat the nut to expand it, and try to twist it with a wrench. If the above methods are ineffective, the nut can be removed by cutting, but effective protective measures must be taken during the cutting process to protect the ring from damage. Finally, replace the pin and nut with new ones of the same specifications and materials.

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