Introduction to vertical mast lift hire：
Aluminum alloy lifting platforms are divided into single-column, double-column, three-column lifts and multi-column lifts. The raised height is below 6-12 meters for single mast type, between 6 meters to 20 meters for double mast type, between 15 meters to 25 meters for three mast type or four mast type. Through the increase of aluminum alloy masts, the stability of the equipment at high altitude is achieved, the operation safety is ensured, the amplitude of equipment shaking is reduced, and the high-altitude operation is more stable. The whole is made of high-strength aluminum profiles. Due to the high strength of the profiles, the deflection and swing of the lift table are also extremely small.
Vertical mast lifts are also very popular in various markets, and their excellent performance and exquisite appearance have been affirmed by most users. The Tuhe vertical mast lift adopts a vertical single-mast design and has a horizontal extension of 3 meters. The width of the whole machine is only 0.99 meters, the height is 1.98 meters, and the length is only 2.66 meters, which reflects the very compact structure of the whole machine. At the same time, it also takes into account the horizontal extension, which is very suitable for use in a small space.
The main difference from the old machine:
1. Optimized the circuit system
2. Optimized the hydraulic piping system
3. Change to AC motor
4. Added battery automatic replenishment liquid device
5. The structure of the machine is optimized to make it thicker and more durable
0,9 x 0,7M
24V - 240A
Vertical mast lift hire is suitable for: single person climbing work：
The lift is equipped with a Sino-German joint hydraulic pump station. The pump station is a die-cast aluminum integrated valve block with a compact structure. The precision grinding high-pressure hydraulic cylinder with imported seals is used as the main lifting power, and the chain drive is driven by the hydraulic pump station. The structure is reasonable. , with a compact design. The descending speed of the single mast aluminum alloy lift can be adjusted automatically, and the equipment is equipped with a manual descending device to ensure normal operation in the event of a power failure.
And there is an emergency shutdown button; the countertop is equipped with a non-slip insulating gusset, which is easy to replace, easy to clean, and easy to maintain, effectively ensuring the safety and reliability of work and the absolute safety of users. Beautiful appearance, light overall, can play the highest lifting function in a very small space, widely used in factories, hotels, hotels, shopping malls, supermarkets, stadiums, stations, power plants and other power lines, lighting appliances, overhead pipelines and other installation and maintenance , high-altitude cleaning. Batteries can be installed according to customer requirements to meet the needs of the customer's workplace.
Vertical mast lift hire safety precautions:
anti-fall safety device
The anti-fall safety device is an important part of the construction elevator. It is necessary to rely on it to eliminate the occurrence of cage falling accidents and ensure the safety of the occupants. Therefore, the factory test of the anti-fall safety device is very strict. Before leaving the factory, the legal inspection unit will measure the torque, the measurement at the critical speed, and the measurement of the spring compression. Each set is attached with a test report and assembled on the construction lift. After that, a drop test under the rated load is carried out, and the lifts in use on the construction site must be subjected to a drop test every three months. For the anti-fall safety device that has been out of the factory for two years (the date of manufacture on the anti-fall safety device), it must also be sent to the statutory inspection unit for testing and testing, and then it will be tested once a year. So far, few people have sent them for inspection. Some construction sites don't even do a drop test every three months. They all think that their anti-fall safety device is fine, but once an accident occurs, they will regret it. Why not regularly test and submit inspections according to the system? The use unit blindly thinks it's good if it's not bad. In fact, the quality of the anti-fall safety device can only be judged by testing and submitting it for inspection. It is impossible to determine whether it is good or bad in daily operation. For those anti-fall safety devices that have been in service over a period of time, it is recommended to submit them for inspection early and regularly. Experiments are good, and only by knowing what to do can we prevent vicious accidents before they happen.
2. Safety switch
The safety switches of the elevator are designed according to safety requirements, including fence door limit, hanging cage door limit, top door limit, limit switch, upper and lower limit switch, counterweight anti-rope breaking protection switch, etc. In some construction sites, in order to save trouble, some limit switches are artificially canceled and short-circuited or not repaired in time after damage, which is equivalent to canceling these safety lines of defense and planting hidden dangers of accidents. For example: the hanging cage needs to load long things, and the hanging cage needs to extend out of the hanging cage if it cannot fit inside the hanging cage, and the door limit or top door limit is manually canceled. In the case that the above safety facilities are not perfect or in good condition, people and objects can still be carried. , This illegal operation is joking with human life. In order to avoid the occurrence of hidden dangers of accidents, it is hoped that the leaders of the user units will strengthen management, and strictly require elevator maintenance and operators to regularly check the safety and reliability of various safety switches to prevent accidents.
3. Wear and replacement of gears and racks
Construction on the construction site, the working environment is harsh, cement, mortar, and dust cannot be eliminated. The gears and racks grind each other, and the teeth are sharpened and still in use, which should be paid attention to. As we all know, the tooth profile should be like a cantilever beam, and when it wears to a certain size, the gear (or rack) must be replaced. To what extent should you stop using it and replace it with a new one? It can be measured with a 25-50mm common normal micrometer. When the common normal length of the gear is worn from 37.1mm to less than 35.1mm (2 teeth), a new gear must be replaced. When the rack is worn, it is measured by the tooth thickness caliper. When the chord height is 8mm, the tooth thickness is worn from 12.56mm to less than 10.6mm. It is still in overdue service and must be replaced with new parts for safety reasons.
4. Definition of duty cycle
The lifts on the construction site operate frequently and the utilization rate is high, but the intermittent working system of the motor has to be considered, which is often referred to as the problem of the duty cycle (sometimes called the load duration). Its definition is FC = working cycle time / load Time × 100%, where duty cycle time is load time and downtime. Some lifts on construction sites are rented by leasing companies, and they always want to make full use of them, but the temporary load rate of the motor (FC=40% or 25%) is completely ignored. Why does the motor not heat up? Some are still in use with a burnt smell, which is very abnormal. If the transmission system is poorly lubricated or the running resistance is too large, overloaded, or frequently started, it is even more of a small horse-drawn cart. Therefore, every driver on the construction site must understand the concept of duty cycle and act according to scientific laws. The motor itself is designed for intermittent operation.
How vertical mast lift hire works？
The hydraulic oil is formed by the vane pump to a certain pressure, and enters the lower end of the hydraulic cylinder through the oil filter, flameproof electromagnetic reversing valve, throttle valve, hydraulic control check valve and balance valve, so that the piston of the hydraulic cylinder moves upwards and lifts the weight. The oil returned from the upper end of the liquid cylinder is returned to the fuel tank through the explosion-proof electromagnetic reversing valve, and its rated pressure is adjusted through the overflow valve, and the reading value of the pressure gauge is observed through the pressure gauge.
The piston of the hydraulic cylinder moves downward (ie, the weight drops). The hydraulic oil enters the upper end of the hydraulic cylinder through the explosion-proof electromagnetic reversing valve, and the return oil at the lower end of the hydraulic cylinder returns to the fuel tank through the balance valve, hydraulic control check valve, throttle valve, and explosion-proof electromagnetic reversing valve. In order to make the heavy objects fall smoothly and the braking is safe and reliable, a balance valve is set on the oil return road to balance the circuit and maintain the pressure, so that the descending speed is not changed by the heavy objects, and the flow rate is adjusted by the throttle valve to control the lifting speed. In order to make the braking safe and reliable and prevent accidents, a hydraulic control one-way valve, namely a hydraulic lock, is added to ensure safe self-locking when the hydraulic pipeline bursts unexpectedly. An overload sound alarm is installed to distinguish overload or equipment failure.
Selection of vertical mast lift hire
1: When purchasing lifting machinery, you cannot buy it blindly. It is necessary to do sufficient market research and on-the-spot investigation to determine the scale of the company and its degree of credibility. This is the first and foremost necessity. Many small-scale enterprises in the market cut corners in order to seek violence, which greatly reduces the quality of lifting products. Although they will sell very cheaply, this kind of machinery does not take long and has a high risk factor. . Therefore, as a purchaser, you can't covet a little bit of cheapness and lead to greater regrets.
2: Based on the information you have investigated, choose a lifting machine with a better cost-effectiveness. You should choose its technical parameters, practicability and versatility. Usually, there are many kinds of aluminum alloy lifting machines, including (vehicle-mounted lifts, stationary lifts, etc.). Lifts, hydraulic lifting platforms, scissor lifts, etc.) each has slightly different technical parameters and uses, but there are also many similar functions. Therefore, as a customer, you should choose with a purpose, that is, you What to do when buying a lift machine, and which lift machine meets your needs and is versatile.
3: The last point is that after the equipment arrives, check whether the random technical data is complete, whether the random accessories, tools and accessories are consistent with the list, whether the equipment and accessories are damaged or defective, etc., and do a good job of unpacking and acceptance. Record.