European type bow shackle

European Type Bow Shackle is a bow-shaped shackle manufactured in accordance with relevant European standards. Its iconic bow ring structure is forged in one piece, with a pin and a stable anti-slip component. Common materials include carbon steel (mostly hot-dip galvanized or electro-galvanized), 304 stainless steel and 316 stainless steel. The carbon steel model is suitable for conventional industrial environments, the 304 stainless steel model can cope with general humid environments, and the 316 stainless steel model is specially designed for highly corrosive marine, chemical and other scenes. The rated working load ranges from 80kg to 8000kg, and the safety factor is usually ≥5.0. The unique bow design enables it to withstand loads within a certain angle range. It is widely used in lifting, shipbuilding, machinery and other industries that follow European standards in Europe and around the world. It is used to connect wire ropes, chains and various types of slings.

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Product Data

Stock no.	D (mm)	A (mm)	B (mm)	C (mm)	D1 (mm)	F (mm)
HS4010601	4	16	8	8	4	12
HS4010602	5	20	10	10	5	15
HS4010603	6	24	12	12	6	18
HS4010604	8	32	16	16	8	24
HS4010605	9	36	18	18	10	27
HS4010606	10	40	20	20	10	30
HS4010607	12	48	24	24	12	36
HS4010608	14	56	28	28	14	42
HS4010609	16	64	32	32	16	48
HS4010610	18	72	36	36	18	54
HS4010611	19	76	38	38	20	57
HS4010612	20	80	40	40	20	60
HS4010613	22	88	44	44	22	66
HS4010614	25	100	50	50	24	75
HS4010615	28	112	56	56	27	84
HS4010616	30	120	60	60	30	90
HS4010617	32	128	64	64	33	96
HS4010618	38	152	76	76	36	114

Product Details

European Type Bow Shackle Features

Bow-shaped structure, flexible force bearing: The carefully designed bow ring can bear lateral loads within the range of ±40° (the load-bearing capacity is the rated value when vertically stressed, and 75% of the rated value at 40°). Compared with the D-type shackle that can only bear vertical force, it is more suitable for complex angle connection requirements, such as the lifting of irregular equipment and the multi-angle installation of building structural parts.
One-piece forging, durable and fatigue-resistant: The bow ring and the pin shaft are both made of one-piece forging technology, with uniform and dense internal structure, no welding gaps, no defects such as pores and sand holes. It is especially suitable for operating environments with frequent use and high load cycles, such as daily lifting work of port cranes.
Reliable anti-slipping and convenient operation: The pin shaft adopts multiple anti-slipping combinations such as "nut + cotter pin" or "bolt + self-locking nut". Under severe vibration conditions (such as ship navigation and mining machinery operation), the probability of pin shaft loosening is ≤0.1%. The pin ends are mostly designed as hexagonal or round heads for easy operation. With a standard wrench, a single person can complete installation and removal within 30 seconds, greatly improving work efficiency and reducing operation time costs.
Details optimization, comprehensive protection: The inner side of the bow ring and the pin surface are polished with high precision (roughness Ra≤1.6μm), and the wear rate when in contact with the wire rope is 30% lower than that of ordinary shackles, effectively extending the service life of the wire rope. The gap between the pin and the ring body is controlled at ≤0.2mm, and it is stable and shake-free after connection, which can avoid component wear caused by high-frequency vibration and reduce the frequency of equipment maintenance.

European Type Bow Shackle Applications

Construction: In large construction projects, it is often used for tower cranes to lift heavy construction materials, such as precast concrete components and large steel beams. The 1000-3000kg European type bow shackle is suitable for the inclined pulling operation of the lifting belt. The multi-angle force characteristics can prevent the lifting equipment from twisting during the lifting process, ensuring the safety of the lifting. In the scaffolding construction of high-rise buildings, it can be used to connect the scaffolding components with the lifting equipment. The quick loading and unloading function of the pin shaft facilitates the construction and dismantling of the scaffolding and improves the construction efficiency.
Ship and marine engineering: In the process of ship manufacturing and maintenance, 500-2000kg shackles are used to connect the lifting equipment and ship parts. The bow ring allows the lifting belt to be inclined within a certain angle (≤40°), which meets the lifting needs of the complex space inside the ship. In the construction and maintenance of offshore oil platforms, European bow shackles made of 316 stainless steel can be used to connect lifting equipment with platform modules, drilling equipment, etc. Its excellent corrosion resistance and high strength can work stably in harsh marine environments.
Mechanical manufacturing and logistics: In mechanical manufacturing factories, when transporting large mechanical parts, European bow shackles are used to connect the crane and the lifting lugs 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 in the transportation of heavy goods, such as the transportation of large transformers, generators and other equipment, European bow shackles are used to connect the transport vehicle and the cargo fixing device to ensure the stability of the goods during transportation.
Energy and mining industry: In the energy field, such as the construction of wind farms, it is used to hoist large components such as wind turbine blades and towers. 2000-8000kg-level shackles can meet the lifting needs of parts of different weights. Its high safety factor and good force performance ensure the safety of hoisting operations. In mining, it is used for lifting and installation of underground equipment, as well as fixing of cargo during ore transportation. After special surface treatment, the carbon steel material can adapt to the harsh environment of humid and dusty mines.

FAQ

Q1: What is the difference between European bow shackles and Japanese bow shackles?

A: European bow shackles usually have a higher safety factor, up to 6 times the working load, while Japanese bow shackles are mostly 5 times. In terms of size specifications, European bow shackles are relatively larger and heavier. For example, for the same 1000kg-level shackle, the overall volume of European bow shackles may be 15% - 20% larger than that of Japanese bow shackles to accommodate heavier loads. In terms of surface treatment technology, European bow shackles focus more on long-term durability and have thicker hot-dip galvanized layers; Japanese bow shackles are rust-proof while taking into account a certain degree of appearance refinement. In terms of price, European bow shackles may be 20% - 30% higher than Japanese bow shackles of the same specification due to higher performance and material standards.
Q3: Can European bow shackles be used at angles exceeding 40°?

A: Not recommended. When the use angle exceeds 40°, the actual load-bearing capacity of the shackle will drop significantly (only 55% of the rated value at 60°), which may cause the ring body to deform or the pin shaft to break. If it is 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 should be ensured to be not less than 4.0.
Q3: What should I do if the pin nut is rusted and difficult to remove?

A: First, use a professional rust remover to soak the rusted part for 3-4 hours to fully soften the rust layer. Then, use an appropriate wrench and a hammer to gently tap the nut (pay attention to control the tapping force to avoid damage to the ring body), and use vibration to assist in loosening the thread. If it still cannot be removed, 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 measures must be taken during the cutting process to protect the ring body from damage. Finally, replace the new pin shaft and nut with the same specifications and materials.

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Qingdao Haosail Machinery Co., Ltd.

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