How to Choose the Right Crane
Occupational Health & Safety Magazine recently featured a helpful article with seven tips for individuals who are interested in buying a crane, plus advice for those who want to minimize risk when purchasing a preowned one.
Seven things to consider:
If your projects and business depend on using the right type of crane, these tips should help you determine what will work best.
Read more at Occupational Health & Safety’s website by clicking here.
First of all, you have to clarify your needs. What do I buy the Mounted crane truck for? Only then can I decide how big a crane and how long a cargo box you want to buy. Mounted crane truck generally consists of three parts: car chassis, crane and cargo box. As for the key components, Xiao Zui will briefly talk about how to choose Mounted crane truck from these three aspects.
● Crane brand: choose a brand with a large amount of local ownership
When choosing a brand, we should try our best to choose a brand with a large local holding. A large holding has advantages in after-sales service and accessory supply. If the local market is blank, choose some old brands, big brands, such as XCMG.Sany Palfinger, SHACMAN,HOWO,FOTON,HIAB etc.
●A high-quality Mounted crane truck is inseparable from a good crane
The crane is one of the key components of the Mounted crane truck, which is directly related to the lifting capacity of the Mounted crane truck. Therefore, a high-quality Mounted crane truck is inseparable from a good crane.
Mounted crane truck telescopic boom and folding boom crane each have their own advantages, mainly depending on their working environment. The advantages of the telescopic boom are that it is cheap and has a large working radius, which is more suitable for open working environments and simple vertical lifting. Generally, people buy telescopic arms more. The advantage of the folding arm is that it has high work efficiency and can be equipped with auxiliary equipment, but the price is more expensive. Folding arm Mounted crane truck is suitable for warehouse factories with small working space, and it is suitable for installing various auxiliary tools for special operations. Enterprises, warehouses, docks and other operations choose folding arms.
The tonnage of the crane mainly depends on what kind of goods you are lifting. Choose the tonnage of the crane according to your needs. It is too big and wasteful, and it is too small and powerless. It should be noted that the best lifting tonnage of the general Mounted crane truck is 70%-90% of the maximum lifting weight of the crane. When choosing, try to make the lifting weight have a certain amount of surplus, which is conducive to prolonging the life of the crane. .
The common crane layout methods are mainly center-mounted and rear-mounted, and these two methods have their own advantages and disadvantages. The middle-mounted type is convenient to choose the lifting position, and the rear-mounted type has better stability during the lifting process, but the biggest disadvantage is that it cannot carry over-long cargo. In general, the telescopic boom truck-mounted crane has relatively small tonnage, and most choose the mid-mounted type; the folding boom truck-mounted crane has a large lifting tonnage and requires high stability, so choose the rear-mounted type. Reliable chassis can guarantee attendance.
●The good and bad of the cargo box is the guarantee: Mounted crane truck cargo boxes are generally slatted
The cargo boxes of Mounted crane trucks are generally slatted, and there are also flat slabs, but they are relatively rare. What everyone cares about most is the length of the cargo box. The length of the cargo box is generally based on the announcement of Mounted crane truck.
● Hoisting rod out method: each has its own advantages, choose according to needs
The first is the rod out method. There is a 234 (5) one. A large oil cylinder inside the boom, and the rest is driven by a wire rope. The advantage is that the load is strong and telescopic. Although the load telescopic boom is not recommended, it is not recommended for truck cranes. There are special characteristics, and the telescopic boom must be loaded under many conditions. Then there is 2 arms first, and then 34 pieces. There are two thin oil cylinders in the big arm. The advantage is that it is more at ease to pick up the weight at a close distance. , But I didn’t see any foldable arms in the 234 piece. The disadvantage is that the 2 arms are slow and sometimes very anxious.
●Winch: optional hydraulic winch and gear self-locking winch
At present, there are two common types of winches, one is a hydraulic winch, and the other is a gear self-locking type. There are two types of hydraulic winches. One is the same as the crane, with a hydraulic axial pump with a crooked neck outside. The second is that there is nothing outside, all in the drum. The second type of hydraulic winch is expensive. The gear self-locking type is basically the same as the chain hoist, with low cost and low maintenance cost, and it can basically meet the requirements when used.
● Selection of reducer/operating valve/outrigger, etc.: suitable for the best
Rotary reducer: It is divided into two types: turbo-worm type and planetary reducer. Turbine worm type, simple structure, low cost, cheap maintenance, easy to break, can be equipped with domestic hydraulic motors and hydraulic motors imported from Italy.
Hydraulic multi-way valve: The imported one is definitely the best, and the domestic one should be the first-line brand of the big factory as much as possible. The front leg is mainly the span, the larger the span, the better. Some rear outriggers are single-chambered with only vertical outriggers, and some are double-chambered with horizontal outriggers. Depending on your purpose, the most suitable is the best.
● The hydraulic oil radiator and the fixed lock of the turntable must be equipped
In addition, there must be a hydraulic oil radiator. No radiator will reduce the working efficiency and the service life of the hydraulic oil.
Since the truck-mounted crane is fixed by the self-locking function of the rotary reducer when it is not working, if there is a rotary fixed lock pin, the slewing support can be fixed by a mechanical device when walking on the garbage road, which will greatly extend the rotary reducer. life.
● Chassis selection: Be sure to choose a special chassis for truck-mounted cranes
The choice of the chassis, the brand does not say, each has its own advantages, you should try to choose a special chassis for truck cranes (such as ISUZU, Sinotruk HOWO, Shacman, Dongfeng, FOTON). On the one hand, avoid the refitting factory when installing the crane. The parts on the mobile chassis can reduce the wrangling between the service station and the refitting factory when the chassis has problems in the future. The most important thing is that the frame load of the special chassis of the truck crane is specially strengthened for the installation of the crane. The reasonable and optimized design can be extremely It greatly reduces the risk of cracking or even breaking of the frame of the crane in the later use. After the crane is installed on the chassis of an ordinary truck, the chassis manufacturer will ignore it on the grounds of overloading.
●The driving form of the chassis (4x2, 6x4, 8x4) depends on your own use. The appropriate is the best. The reinforcement of the beam is very important. Even the special chassis for truck cranes needs to be reinforced. Some manufacturers want to save It is irresponsible for money not to reinforce or to change the material of reinforcement. Manganese plates should be used for reinforcement. ML TRUCK uses high-quality manganese steel.
When ordering a truck mounted crane, don't just look at the price. It depends on the configuration of the crane. As a crane manufacturer, ML TRUCK produces the best truck mounted crane for you.