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Factory Owners and Consumers Buying Guide:
A concrete or cement mixer is a useful, time saving tool that can be a good investment for construction professionals, but which can also be very helpful for amateurs who want to be able to mix concrete without having to strain their backs.
If you are considering buying a concrete mixer, there are a number of important factors that you need to consider in order to make sure that you choose the right mixer. You need to think about how much concrete you need to be able to mix and how you intend to use your concrete mixer, so that you can make the right choice for your needs.
Size is one of the most important considerations when buying a concrete mixer. The size of the mixer you buy will determine how much concrete you will be able to mix in one batch. If the mixer you buy is too small, then you will have to mix multiple batches of concrete in order to complete the job, and it will take longer for you to produce all of the concrete that you need. However, if you choose a mixer that is too large, then you will be spending more than you need to on the purchase and the mixer will not be as effective at mixing small batches.
In order to ensure that you choose a concrete mixer of the optimum size, you need to spend some time thinking about how much concrete you need to be able to make. You can use a large concrete mixer to produce smaller batches of concrete, but there is a maximum limit to the amount of concrete that you can generate in a particular concrete mixer. It can be a good idea to buy a slightly larger concrete mixer than you usually need, if you think you may need to take on a larger job on occasion since you can always mix a smaller batch. If you are mixing very stiff concrete, you will find that you can only make batches of between a quarter and a third of the maximum batch size, so you should bear this in mind when choosing your concrete mixer.
The smallest concrete mixers on the market are usually designed to produce batches of approximately 200 pounds or about one and a third cubic feet of concrete. The most popular mixers are usually in the middle size range, producing between 6 and 9 cubic feet of concrete, or between 300 and 500 pounds. The largest concrete mixers typically produce up to 1100 pounds of concrete, which is about seven and a third cubic feet.
Manufacturers may give either the volume of the drum or the volume of concrete which can be produced in one batch, so make sure you know what the figures mean. If you are buying a tilted drum concrete mixer, you should remember that you will only be able to use about two thirds of the volume of the drum when you are mixing concrete since any extra concrete would spill out of the drum.
Once you know what size concrete mixer you need, you will be able to consider other factors, such as the amount of power that you need. A concrete mixer with a more powerful motor will be able to produce concrete more quickly. If you need to be able to produce large amounts of concrete or cement as quickly as possible, for example if you are a professional construction worker, then you should try to buy a concrete mixer that is powerful as possible. If you only need to mix small batches of concrete, infrequently, then you can choose a less powerful mixer, which will help to keep the costs down.
A number of different types of concrete mixers are available, which can be suitable for different types of work. Most mixers consist of a rotating drum, turned by a motor, which is fixed to some sort of frame. The frame may be mounted on wheels, in order to provide some mobility, or on a trailer that can be towed behind a vehicle. The largest concrete mixers are mounted on the back of a truck, which means that the concrete can be mixed as it is transported to the building site, helping you to save time.
Concrete mixers can work in three different ways. A twin-shaft mixer can be a highly efficient option, mixing concrete well and fast. These mixers are most commonly used with high strength concrete, SCC and RCC, producing batches of between 2 and 6 meters cubed. Vertical axis mixers are another option that can be a good choice for mixing prestressed or precast concrete. Vertical axis concrete mixers are the easiest to clean after use, which makes them a good option for mixing colored concrete. They are generally used for fairly small batches of concrete, of between 0.75 and 3 meters cubed. Vertical axis mixers can be divided into Pan and Planetary mixers, with Pan mixers typically being more effective. The third type of concrete mixer is the drum mixer, which is typically chosen for producing large batches of between 3 and 9 meters cubed of concrete. Drum mixers are fast and popular. They are generally used with pre-mixed concrete, and they are the cheapest option to buy, operate and maintain.
Mobile or portable mixers come in a range of different sizes, but they are all designed to be mobile. This makes it possible to move them around the site where concrete is being used, in order to bring the concrete to the precise location where it is needed. Mobile mixers tend to be cheaper than stationary ones, and they can also be more convenient and easier to use.
Stationary mixers tend to be larger than mobile ones. They can therefore be useful if you need to be able to produce a lot of concrete. These mixers also tend to be more powerful than the smaller mixers, which means that they can be a good choice for professionals. A stationary mixer can be useful on a large building site or when more than one person needs access to the mixer. However, many construction professionals feel that a smaller, more mobile mixer can be a better choice since they will be able to move it around as necessary, and it can be brought into even the most inaccessible site.
Concrete mixers usually have either a steel or a plastic drum. The largest and most powerful concrete mixers usually have steel drums, but if you are buying a smaller mixer, it is a good idea to consider choosing one with a plastic drum. Plastic does not corrode and it is more durable and easier to clean. Steel drums are also prone to abrasion, particularly when they are used to mix stiff concrete or mortar, which can scrape material away from the sides of the drum. This can be particularly problematic when you are mixing light colored concrete, as it can begin to turn gray.
Different types of power sources can be used with different concrete mixers. An electric mixer can be a good choice if you are sure that there will always be a power supply available when you want to use your mixer. You will need to take care with the electric cables, but you will be freed from the task of refueling your mixer. Diesel and gas powered concrete mixers are also available. You may need to choose one of these if you need to use your cement mixer in places where there will be no electricity supply within reach of the power cord. However, you will need to buy fuel for your concrete mixer and ensure that you have enough fuel ready before you start mixing concrete.
Concrete can be mixed by hand, rather than in a concrete mixer, but this is rarely a good choice for anyone who needs to mix large amounts of concrete or who regularly uses concrete. Mixing concrete manually, which is typically done in a wheelbarrow, requires a lot of hard work. It can put a significant strain on the body, and it can take a lot of time. Buying a concrete mixer can enable you to make better use of your time and to produce concrete without having to strain your body. A concrete mixer can also produce higher quality concrete, by mixing it more homogeneously, which can help to prevent flaws in the finished concrete.