How the selection, purchase electric hoist

Faced with a wide variety of standard models on the market electric hoist products, as the user how selection, purchase a suitable  rope hoist   Summarize the following need to consider when buying electric hoist factors hope for your help:
One, lifting height: electric hoist as a promotion tool, would lift height has strict requirements. Therefore, the time of purchase, you should first select according to plant height of lifting height, the conventional lifting height has 6,9,12,18,24,30 m.
Second, lifting speed: an ordinary electric hoist lifting speed is divided into single-speed (8m/min) and dual-speed (8/0.8m/min) two kinds, in the absence of special requirements are often used in the case of single-speed electric hoist also CD1 is the model number, if your condition requires heavy lifting required to pinpoint the course of the case, easy to use two-speed electric  lever hoist  MD1 model.
Third, buy electric hoist should pay attention to the spacing between the upper and lower hook, because in certain plant would hoist hook spacing specific requirements.
Four, motor power: Different electric hoist motors are not the same, the same 10t electric hoist motors may also be 13KW or 7.5KW, purchase according to their different needs.
V. Voltage: electric hoist wide field of application, involving all walks of life, so the use of the voltage will be different, there are 380V 220V China industrial electricity consumption, and even 440V, 60HZ, 380V, 60HZ series of non-standard power supply.
Six, mounting: electric hoist with electric trolley can be selected,hoist and trolley that is, up and down with the trolley hoist can lift heavy objects can be moved around, and can only be fixed up and down lifting heavy objects.
Seven, buy electric hoist electric hoist must consider carefully whether formal quality and manufacturers, the quality of the main factors to be considered: the motor, wire rope specifications, hook roll media. Manufacturers whether a formal main considerations: whether they have produced relevant documents crane, such as: production under license, certificate, etc.