Shackle knowledge is introduced
The shackle is one of the rigging. The domestic market commonly used shackle, according to the production standards generally divided into three categories national standard, American standard, Japanese standard; Beautiful mark one of the most commonly used, because of its small volume weight capacity is big and widely used. Qingdao shackle production small make up today will introduce you to shackle of related knowledge.
The classification of the shackle
The variety can be divided into G209 (BW), G210 (DW), G2130 (BX), G2150 (DX). According to the type of type can be divided into the bow with a mother shackle and type D (U type or straight type) type D take mother shackle; According to the use place can be divided into two kinds of Marine and land use. Safety factor four times, five times, six times, even eight times (e.g., GUNNEBO super shackle of Sweden). Its material, common carbon steel, alloy steel, stainless steel, high strength steel, etc. Surface treatment Generally divided into galvanized (hot) plating and electroplating, painting, plating dacromet.
Shackle of rated load
Common American standard on the market Shackle specifications of 0.33 T, 0.5 T, 0.75 T, 1 T, 1.5 T and 2 T, 3.25 T, 4.75 T, 6.5 T, 8.5 T, 9.5 T and 12 T, 13.5 T, T, 25 T, 35 T, 55 T, 85 T, 120 T, 150 T. (now the worlds largest shackle may achieve above 1000 t, the Swedish GUNNEBO heavy shackle of up to 1200 t, the CROSBY shackle of up to 1500 t. Domestic can do 1500 t its technical content reached the world advanced level)
The use of the shackle
Shackle is widely used in electric power, metallurgy, petroleum, machinery, railway, chemical industry, ports, mining, construction and so on all walks of life.
The material of shackle and use
Now good shackle are generally use alloy steel, material, changed the past history of ordinary carbon steel. Now Shanghai brought heavy Marine equipment production of hot dip galvanized shackle American standard is widely used by customers for 6 times maximum safety factor. Gb shackle including general reuse shackle, Marine shackle and common shackle. The heavier weight, large volume, are generally not installed on often do not remove the position. The safety factor should be paid attention to when choosing a shackle, generally speaking, there are 4 times, six times and 8 times. YOKE company produced steel shackle, DNV and ABS forms authentication, is the first choice for ports, oil fields, the ship industry in China. Shackle used must strictly comply with the rated load, excessive frequent use and overload are not allowed to use.
