G100 Clevis Shortening Grab Hook is forged from high quality G100 alloy steel and quenched and tempered. The curved narrow throat design facilitates quick grabbing, shortening or fixing of the chain to prevent the chain from slipping out. The fork-shaped structure can be directly connected to the G100 chain, and some are equipped with safety pins. There are various specifications, such as 5/16" (8mm), 3/8", etc. The working load limit varies according to the specification, and the design safety factor is generally 4:1. It is commonly used in lifting and hoisting operations in the construction, manufacturing and other industries.
Stock no. | Size (mm) | WLL (t) | A | B | E | M | W | R | L | φ | Weight (kg) |
HS1031201 | 6-10 | 1.4 | 7.5 | 32 | 8 | 43.5 | 25.5 | 44.5 | 77.3 | 7.6 | 0.22 |
HS1031202 | 8-10 | 2.5 | 9.5 | 36 | 11 | 54 | 33.5 | 53 | 93 | 9.8 | 0.34 |
HS1031203 | 10-10 | 4 | 12.5 | 46 | 13.5 | 72 | 42 | 73 | 127 | 13 | 0.82 |
HS1031204 | 13-10 | 6.7 | 15 | 59 | 15 | 96 | 53.5 | 92 | 164 | 15.8 | 1.75 |
HS1031205 | 16-10 | 10 | 18.5 | 70 | 19 | 115 | 74 | 99 | 188 | 19.5 | 2.88 |
HS1031206 | 20-10 | 16 | 24 | 85 | 24 | 142 | 74 | 123 | 221 | 24 | 4.84 |
HS1031207 | 22-10 | 19 | 27 | 100 | 27 | 159 | 90 | 141 | 260 | 28 | 8.3 |
Forged Super alloy steel-Quenched and Tempered
Suitable for G100 chain
25% stronger than G80
Individually proof test at 2.5 times Working Load Limit
Fatigue tested at 1.5 times WorkingLoad Limit for 20000 cycles
Strict sampling and breaking tests are carried out on each batch of products
100% magnaflux crack detection
All load pins are 100% individually inspected and tested
Surface treatment: Powder plastified
Colour code: Blue RAL5015
Ultimate load is 4 times the Working Load Limit
Construction: It can be used to hoist building materials such as steel bars and prefabricated concrete parts. It can cooperate with tower cranes and cranes to accurately locate the position of materials. In the exterior wall decoration of high-rise buildings, decorative panels can be hoisted, and the chain length can be adjusted to adapt to different floor heights. It can also be used for the installation of construction equipment, such as the hoisting of elevator components, to ensure that the equipment is accurately installed in place.
Mining: In mines, it is used to hoist large machinery such as excavation equipment and transport vehicles to facilitate the movement and maintenance of equipment. It can also be used to hoist ore, and cooperate with mine cars or other transportation tools to transport the mined ore from the working surface to the designated location. In addition, during the construction of mines, support materials such as steel beams and backboards can be hoisted to ensure the safety of mine construction.
Port operations: It can cooperate with shore cranes to hoist containers, and adjust the height of containers by shortening the chain to facilitate loading and unloading ships. It can also be used to hoist large-scale mechanical equipment in ports, such as parts of ship unloaders and ship loaders, to facilitate equipment maintenance. It can also be used to hoist large steel, wood and other bulk goods in the cargo yard to improve the efficiency of cargo transfer.
Mechanical manufacturing: When assembling large mechanical equipment in the factory, it is used to hoist key components such as engines and gearboxes to ensure accurate installation of components. In material handling on the production line, raw materials and finished products can be hoisted, and the chain length can be adjusted according to the height of the production station. At the same time, when repairing mechanical equipment, heavy parts can be hoisted to facilitate maintenance personnel to carry out maintenance operations.
Power engineering: In substation construction, electrical equipment such as transformers and switch cabinets can be hoisted. In transmission line construction, it is used to hoist tower components, and the length of the grab chain can be adjusted to adapt to different terrains and tower height requirements. It can also hoist maintenance tools and replacement parts during power equipment maintenance to ensure stable operation of the power system.
Transportation: In road transportation, it is used to fix large cargo to prevent cargo from moving during transportation. In railway construction, materials such as rails and sleepers can be hoisted, and railway laying operations can be carried out in conjunction with equipment such as rail cranes. In the field of shipbuilding and maintenance, large components such as ship engines and hull sections can be hoisted to facilitate ship construction and maintenance.
Q1: What is the rated working load of the G100 Clevis Shortening Grab Hook?
Different specifications have different loads, such as 3/8" specifications are usually about 8,800 pounds, 5/8" specifications can reach 22,600 pounds, etc. You can check the product logo or manual for details.
Q3: Will the load-bearing capacity be affected by the chain specifications during use?
It can generally be used with G100 chains and is also compatible with some Grade 80 chains. If used as specified, there is usually no need to reduce the working load limit due to chain specifications.
Q3: What is the safety factor of this grab hook?
The safety factor is usually 4:1, which means it can withstand a force 4 times the rated working load without damage.
Q3: Is there a device to prevent the chain from accidentally unhooking?
Yes, its special design can prevent the chain from accidentally releasing, and some models are also equipped with safety pins and other devices to further ensure safe use.
Q3: How to use the grab hook to shorten the chain correctly?
You can directly hook a link of the chain with the grab hook, and shorten the chain length by adjusting the position of the hooked link. It is generally recommended to connect it to the main chain through 3 links.
Q3: Are special tools required for installation?
Usually not. It can be directly connected to the chain. The fork-shaped design allows it to be quickly and easily connected to the chain without additional connectors.
Q3: What material is the grab hook made of?
It is forged from high-quality alloy steel, and is quenched and tempered, with high strength and good toughness.
Q3: What is the surface treatment of the grab hook?
The most common one is powder coating, which can effectively prevent rust. Some products will be painted in specific colors, such as blue, which is both beautiful and easy to identify.
Q3: Has the product been quality tested?
It will undergo 100% magnetic particle inspection to check for defects such as cracks, and will also undergo a proof load test of 2.5 times the working load limit, and a fatigue test of 20,000 cycles at 1.5 times the working load limit.
Q3: What industry standards are met?
Usually it complies with European standards such as EN 1677-1, and may also comply with relevant standards such as ASME B30.9, ASTM A952, etc.
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