The inside of the sandblasting hose is made of natural rubber, which has a considerable resistance to abrasion. The outer layer is made of a polymeric material. There is reinforcement, which acts as a double textile braid.
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From sandblasting to choose the right hose is directly dependent on the speed and quality of sandblasting and abrasive consumption.
The standard length of the blast hose: – 20 and 40 meters.
Wear abrasive blasting sleeve inside leads to the loss of pressure during transport of air-abrasive mixture, as a consequence of reduced cleaning rate and increased consumption of abrasive material. Therefore, the savings on sandblasting hose price may be questionable and lead to higher costs in the production of sandblasting work.
Sandblasting (abrasive) sleeve has a high resistance to abrasive particles. Used in systems and plants and sand blasting different surfaces and parts. With these sleeves, by means of compressed air supply is made of steel shot, quartz sand, corundum and other materials used for cleaning. Sandblasting sleeve widely used in the construction industry for supplying different solutions (cement, gypsum, etc.), as well as concrete mixtures using concrete pumps. Products at work do not accumulate static electricity, which ensures their safe use. The use of wear-resistant materials for the production of hoses for long life of their operation, and to enhance the strength of reinforcement is carried out using a tissue winding. All products meet international standards system DIN ISO 4649: 2006. Allowed to operate at temperatures from -35 o C to +80 o C.
With sand-blasting method can achieve varying degrees of purification. When cleaning, can be divided into metal surfaces purity 4 following groups:
1. Sandblasting effect reminiscent of cleaning with a wire brush.
Routine cleaning of surfaces without a mirror shine effect.
Clean metal surface almost to perfection.
2. Clean the surface of the metal to full brightness.
The choice of treatment should be determined in advance depending on which coating was applied to the metal surface: corrosion, enamel, primer, zinc or plastic coating, etc.
• Blasting hose is designed for supply of abrasive materials and is used in jet engines and installations blast cleaning surfaces with structures serving quartz sand, steel shot, sliced, corundum, nikelshlaka, kupershlak etc;
• very high life expectancy abrasion resistant inner layer. In the production of sandblasting hose is used only high-abrasion rubber that allows to obtain high-quality sandblasting hose with a lifetime of about 3-5 times higher than that of many Chinese and Russian counterparts sandblasting hose;
As practice shows, from how sandblasting sleeve is always directly dependent on the quality of the device is selected correctly, jet speed, abrasive consumption. It is very important to consider that this structural element is always exposed to increased wear and require particularly careful choice in quality and durability.
In order to determine the condition of the hose it is recommended to periodically use a special gauge. If the pressure in it is reduced at 1 atm., Recommended replacement. Quickly wear out the air hose does not allow the installation to fully operate. This leads to a loss of pressure reduction purification rate of volume increase sacrificial abrasive. As a result, savings in the cost of the hose leads to a significant increase in operating costs.
In order to determine the diameter of the blasting hose is sufficient to multiply the inner diameter of the nozzle at the 3. Select hose with a margin on the length are not recommended, as it will lead to the senseless loss of pressure.
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Before starting work, always check the outlet pressure. If you have recorded a loss of pressure even by 1 bar compared with a new hose, replace it. Failure to replace the blast hose can rupture the hose, that is unsafe.
When purchasing a sandblasting hose, you have to understand that it is not necessary to save, because here it is necessary to use a hose with an inner diameter as large as possible. The pipeline for the air supply may not be large enough. The larger internal diameter of the blasting hose, the less friction loss.
In order to choose the right sandblasting sleeve, determine the diameter of a blast nozzle you want to use. For correct operation, the hose diameter should be 4 times higher. Buy sandblasting sleeve is only required length, unjustified increase in length will lead to pressure loss.
Generally, not all of the same sleeve sandblasting quality. Choosing a quality sleeve for sandblasting, you will provide a continuous speed, the quality of treatment and reduce the consumption of abrasive material transmitted through the hose.
It might seem odd that something as basic as hose could be important, but in sandblasting it is a critical component of your blast system. The blast hose you use is vital as it allows blast media to be delivered to your blast nozzle and if any issues arise can create significant safety as well as performance issues. In this guide we will cover all the factors to consider when choosing blast hose which will allow you to know which type of blast hose may be right for your application.
Having proper blast hose size is critical as it will be one of the factors that contribute to the speed at which you blast, you can learn about other factors that are important to increasing blast speed here. In particular, the hose that you supply your sandblast pot with is critical to be able to blast well. If you use a hose that is to small for your blast nozzle your hose will not be able to provide an adequate volume of media and air to the blast nozzle. This will result in a blast pattern that does not stay consistent. Additionally, if you feed your blast nozzle with too small of a blast hose you could have a smaller blast pattern and it can result in quicker wear of your blast hose as the smaller blast hose is the faster media moves through it which can accelerate wear.
Blast hose comes in a variety of thicknesses from 2 Ply, 4 ply, or Clemco Supra Blast hose. The ply of the hose refers to the layers that the hose is composed of. In general, the more layers that a hose is constructed of the stronger the hose will be. Higher ply hoses will be a higher initial cost but they will not wear as fast. The key thing to consider about your sandblast hose ply is the environment which your blasting in. The greater chance your blast hose will be scuffed, run over by a truck, or exposed to rough treatment the higher the ply hose you will want to consider. Additionally, the longer the blast hose length you are using, the more you may want to consider a larger ply blast hose as the hose will potentially be drug across a job site and as a result more likely to come in contact with a variety of job site materials that may wear the hose. As a general recommendation 4 ply blast hose is a popular choice for shipyards and industrial settings where light vehicles and scuffing are expected. 2 Ply is a common choice for industrial environments where general scuffing is expected.
A happy blaster is a productive blaster and as you may have experienced a thick blast hose can be difficult to work with. To maximize operator comfort you can start with a heavier ply blast hose like a 2 or 4 ply blast hose(depending on the degree of scuffing expected to occur in the blast environment) and at the end of the blast hose consider using a lighter ply hose for the last 10 – 15 feet (known as a whip hose). You can also use a smaller diameter blast hose if you are using a smaller blast nozzle. In general smaller blast nozzles will not provide as much production, but if they are sufficient for your blast process then it is a good idea to use the smallest blast nozzle that will allow you to meet your blasting goals which you can learn more about nozzle size and production rates here.
A significant risk with blast hose is that it can eventually wear and fail. It is critical to inspect your blast hose before each time you blast to ensure there are no obvious changes in the hose. If the hose has any bulges or other signs of problems, you should consider replacing that portion of sandblast hose. Additionally if your blast hose as multiple sections and you have couplings that are attaching the different hose lengths together you will want to consider a blast hose safety cable which will secure the two hose lengths and prevent the blast hose from whipping around causing potential injury to the blast operator or others in the area.
Ultimately your blast hose is a critical part of your blast system. Proper hose selection can help you improve production, reduce frequency of blast hose replacement, ensure your operator is safe, and allow for better control during sandblasting. By considering the factors above you should be better able to select a blast hose that will meet your needs well. If you are in need of blast hose we stock sandblast hose and can help you determine which hose type may be right for your application.
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