Chain electric hoist series spectrum is the producer of the same size goods, warehouse jack in accordance with the job market, hoisting, lifting speed, lifting key performance parameters such as the ratio of height to width of a key performance parameters of arrangement, from the midst can more intuitively know the products reached the level of market demand. Series of product spectrum is the basic of the universal design scheme of the chain electric hoist. The effective series of product spectrum pursues perfection with less base type to cover more specifications and model categories as far as possible. And many large tonnage jack manufacturers can not do this, leading to a series of products are not complete, one of the primary reasons is that the series of product spectrum is not very good application of the core concept of grade division in the work.

Work in series spectrum mid-range draw is one of the specific content, mid-range regionalization work depends on its use, for often shift load, intermittent operation of hoisting machinery and equipment, the transformation of multifarious many working conditions to carry out the classification of the cyclical regionalization, and fatigue limit is calculated in the middle of the swap, hu reed design also is this kind of energy. Thus make fenugreek more suitable for the practical application of the working conditions, and can complete a base type can be replaced in a variety of working conditions. Handjack despite early in our country at the beginning of the 20 century 80 time, is the introduction of European lifting equipment equipment work the basic theory of market division, but 30 years, in the field of Chinese chain electric hoist, really application mid-range regionalization basic theory effectively achieve the equipment series product research and development of manufacturers is not a lot, With an effective ring chain electric hoist work grade, coupled with the lifting weight, transmission chain chain multiple, lifting rate, lifting height to width ratio, double single-speed status change, single version of the ring chain electric hoist product model will increase, with the smallest base cover wider specifications and model category.

The correctness of the type spectrum of electric hoist series of jack manufacturers