This strong cardboard baling machine makes compact bales weighing roughly 1,200 lbs each bale and generates 60 tons of pressing power. The baler may compress cardboard trash, as well as plastic film or foil. Cardboard is the most common material used for packing food products.
The strength of a baler depends on how much force it can generate and how long it can sustain that force. A baler's pressing mechanism consists of two rolls that press against each other. These rolls are powered by motor that turns one roll while the other is fixed. As the turning roll moves forward, it presses the other roll backward, creating enough pressure to squeeze out all the air from between its fibers.
Cardboard balers usually have a maximum capacity of about 100-150 pounds per minute. They are able to compress this amount within 10 minutes. Longer periods may cause melting of the plastic layer of the cardboard.
People usually think that balers need to be very heavy to be effective but this is not true. It is more important that they can stay in place for a long time under high pressures. Paper balers come in two varieties: single-cylinder and multi-cylinder. Single-cylinder models usually have a pressing speed of about 2-3 pounds per inch while multi-cylinder ones can reach up to 6-8 pounds per inch.
What is the weight and size of a bale of cardboard? The average weight of a cardboard bale produced by a vertical baler is approximately 660 lbs, or 300 kg. This is the weight of a medium-sized bale measuring 47.2 x 31.5 x 31.5 inches, or 120 x 80 x 80 cm. As you can see, a cardboard bale is a heavy object.
The boxboard used in making cardboard bales comes in 4' x 8' sheets that are as thin as paper. Each sheet will cover up to 20 cubic feet of volume. The actual weight of a bale of cardboard depends on how much content it contains. A bale with 100 percent recycled material weighs about 1 ton while one composed only of newspaper is about 0.7 ton. A bale containing both newspaper and old magazines can weigh up to 1.4 tons.
As for its size, a cardboard bale measures about 50 inches wide by 35 inches high by 15 inches deep. So, a single bale weighs about 60 pounds and takes up a lot of space when stored or shipped away from home.
Interestingly, although a cardboard bale is very heavy, it does not present a major storage problem because they are actually compact structures inside their wrapping materials. They can be stacked easily and do not require much room when kept in a warehouse or other storage facility.
As for their durability, cardboard bails are quite resistant.
Using the same density as in the round bale example, huge "square" bales would weigh between 807 and 1,435 pounds (Table 2). The impact of wrap tightness, or bale compression, can vary greatly based on operator choice and the equipment employed. Square bales are often less tightly wrapped than cylindrical bales, which allows for more air flow through the crop to maintain health.
Crop conditions have a major influence on bale weight. For example, wheat yields about 10 percent less per acre when dry seeded instead of watered at seeding time. The reduced yield causes wheat heads to contain less nitrogen, which leads to smaller seeds and heavier straw. In addition, older plants produce heavier straw because they have less biomass per unit area than younger plants. Annual rye produces about 20 percent less grain but has a similar percentage increase in stalk production so that its total mass is about the same as that of an older wheat plant.
A study conducted by Iowa State University found that average bale weights ranged from 710 to 940 pounds for different varieties of corn. The researchers also tested soybeans and found averages of 320 to 360 pounds for de-hulled beans and 390 to 420 pounds for crushed pods.
Materials such as cardboard, textiles, foam, plastics, cans, and bottles are crushed and baled in balers before being transported to a landfill or recycling center. Farmers use them to make animal feed, while industrial users turn them into raw materials for new products.
A baler forms round bales from material that is picked up from the ground or dropped onto a platform. It consists of three main parts: A round metal frame holds the roll of wire or twine around which the bale is formed. Inside the frame, a plunger pushes the material through a die and onto the rotating bale form. The bale turns as it grows in size, and when it reaches its maximum diameter, it is ejected from the baler onto a cart or trailer attached to a tractor. The tractor then pulls the cart or trailer to a remote location where it is unrolled and cut free.
Farmers used to use hay balers to make hay available during winter months, but now they mostly use automatic spreaders with snow blowers instead. Automatic spreaders shoot a stream of water or herbicide out the back of the machine to kill nearby grass or weeds without having to rake or mow first.
The weight of balsa wood varies between 4 and 20 pounds per cubic foot. The following website (http://www.balsasales.co.uk/technical info.html) provides a decent middle-of-the-road number for select, kiln-dried balsa: 9.5 pcf, tensile strength of 1910 psi (that's really tough stuff, a 1" square piece of balsa wood carrying one ton of weight). That's more than enough to make many useful products.
Balsa's weight per volume is much higher than that of most other common materials used in construction projects. This means that it can be expensive to ship by volume. However, since it's so light, it can be inexpensive to ship by weight. For example, shipping 10 pounds of balsa wood by volume costs about $120, but only costs about 55 cents to ship by weight.
Balsa's high density makes it relatively impervious to moisture. This means that it will not rot or mold easily, which is why it's commonly used for models and toys. It's also very stable, which is why it's often chosen as a base material for musical instruments.
Balsa's low cost makes it popular with students who want to build large projects. But because it's so weak, it's best used as an economical alternative to hardwood for smaller projects.
In conclusion, balsa wood is strong yet lightweight, which makes it useful in a variety of applications. It's primarily used in models and toys because of its resistance to moisture and price.
Most individuals would tell you that the weight of the round bales they baled or bought was between 1,000 and 1,200 pounds. However, when you take into account the size of the bales, this amount seems small compared to what it actually is. A standard size bale is approximately 2 feet in diameter and 4 feet long.
That means each bale is capable of holding about 220 pounds. If you multiply 220 by 12, which is the number of pounds in a ton, you arrive at two thousand four hundred pounds, which is very close to the estimated weight of a round bale.
The actual weight of a bale will vary depending on how mature it is and whether it has been compacted properly after picking. Generally, round bales are heavier than head-of-lettuce bales because more food is packed into a round bale than just lettuce. The more mature the bale, the higher the percentage of dry matter (DM). Dry matter is the term used to describe the edible portion of plants. For example, the DM of wheat is around 85% while corn is almost 100%. When bailing wheat, you should be able to pick up the bale and carry it without any effort. With lettuce it's different because the DM of lettuce is relatively low, usually below 15%.