Hydraulic lift in many construction sites, is a relatively important mechanical use. Therefore, there will be more transactions in the Chinese market, but when buying this kind of machinery, because there are more types of hydraulic lifts, different types of lifts use different functions. Therefore, when we buy, we should pay attention to the following points.
First of all, when we buy a hydraulic elevator, we must determine our own purchase target. Elevator principle: hydraulic oil by the vane pump schedule certain pressure, the oil filter, flameproof electromagnetic directional valve, throttle valve, hydraulic control one-way valve, balance valve into the lower cylinder, the hydraulic cylinder piston upward movement, improve the weight, the upper cylinder oil return by the flameproof electromagnetic directional valve back to the fuel tank, the rated pressure through the overflow valve adjustment, observing the pressure gauge pressure gauge reading values. In other words, don’t execute blindly when we buy hydraulic lifts. We should have a better understanding of the hydraulic elevator they want to buy, whether it is used in the place or the function. After the hot press, to do a good job of market research, after the field investigation, to fully understand the hydraulic lift we want to buy, no matter it is where we use, or the function we use. Then try to decide what to buy.
Second: for the department selling hydraulic lifts, this is also an important part of our selection and purchase of hydraulic lifts. The piston of the hydraulic cylinder of lift manufacturer moves downward, the hydraulic oil enters the upper end of the hydraulic cylinder through the explosion-proof electromagnetic directional valve, and the lower end of the hydraulic cylinder returns the oil to the oil tank through the balance valve, the hydraulic control one-way valve, the throttle valve, the flameproof electromagnetic directional valve. In order to make the weight fall steadily and brake safely and reliably, a balance valve is set on the oil return circuit to balance the circuit and maintain the pressure so that the falling speed is not changed by the weight. The throttle valve regulates the flow and controls the lifting speed. And the main concern is the credibility of the sales unit. For the lower reputation of the unit, if used together, in the use of hydraulic lifts in the process, there will be more quality problems, even greater safety accidents.
Similarly, it is not easy to choose a hydraulic elevator with better performance and price, so when you choose and buy, you must choose a hydraulic elevator with better performance and price. First of all to consider his technical parameters, secondly to consider the practicality and versatility of hydraulic lift. After left, we should pay attention to the problem of the manufacturer’s after-sales service. For any kind of machinery, there are inevitable problems in the use of the process, and many of these problems in use, only the close cooperation with enterprises, can realize the value of continuous use.