The products are made of high-quality alloy steel, die forging and free forging. All forgings are heat treated to ensure the impact resistance, bearing capacity, toughness and ductility of the products, thus greatly improving the safety and service life of the device. 1. The surface can be dipped, painted, electroplated and hot-dip plated. 2. Strength Grade 80. 3. Safety guarantee: generally, the small breaking load (i.e. safety factor) is 4 times of the rated working load (2 times of the test load for 55T ~ 300t shackle, 1.5 times of the test load of the 400t shackle, and 1.33 times of the test load of the 500t ~ 1500t shackle). 4. Shackle tonnage can be designed and manufactured according to your requirements of 100t-1000t. Product features 1. US Bolt Type anchor shackle G2130 is forged with high quality carbon structure or alloy structure and heat treatment, with small volume and high strength. 2. The rated load mark is permanently printed on each shackle. 3. The maximum test load is 2 times of the rated working load and the minimum breaking load is 4 times of the rated working load. 4. The shackle can be used for the end fittings of the rigging and directly connected with the object to be hoisted in the hoisting operation. It can also be used between rigging and end fittings for connection only. 5. When the rigging is used together with the beam, the shackle can be used to connect the top of the sling with the ear plate under the beam instead of the lifting ring, which is convenient for installation and disassembly. Matters needing attention 1. The rated working load and service range of US Bolt Type anchor shackle G2130 are the basis for the test, detection and use of shackles. Overloading is strictly prohibited. 2. During the lifting process, it is strictly forbidden to collide and impact the lifting objects. 3. The lifting process should be as smooth as possible. It is strictly forbidden to stand or pass on the goods below. 4. Any shackle must be lifted before use. The selected lifting point should be on the same plumb line as the center of gravity of lifting weight.Custom Lifting Shackle website:http://www.zhishen-hoistingequipments.com/lifting-shackle/