Automated processes are normal follow in the food industry. Production effectivity just isn’t the one motivation, hygiene additionally plays a key function within the food business. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to discuss how to design a drive to fulfill these requirements and incorporate both these goals.
Question: How are high requirements of hygiene met by DEPRAG?
Answer: In order to make certain that the right drive is chosen to meet the high necessities for hygiene within the meals trade, we often advocate our ADVANCED LINE air vane motors. All their exterior parts are produced from stainless steel and are impervious to regular cleaning brokers. The clean surface of these air motors is straightforward to clean. The drives are so nicely sealed with durable long-life radial shaft seals that no air can escape and equally no dust, water or other solutions can penetrate the motor. The motors are even immune to water penetration from generally used cleansing spray systems. A wet setting is no concern for this motor. It may even be used underwater as in the case of many stirring functions. All our ADVANCED LINE stainless steel motors are lubricated with meals grade USDA-H1 grease and can be operated oil-free. A power discount of approx. 10-20% primarily based on the technical data said in the product catalog should be taken under consideration when designing drives for oil-free operation.
Question: Does an air motor have to boast different features for such applications?
Answer: Yes. In many functions, condensation can form in air provide strains. It is therefore advisable that measures are taken to make sure that the motor is not located on the lowest point within the system and that it may be flushed out with water. Many users take precautionary measures, not only relating to the layout of the motor of their system, but also concerning the use of water separators or dryers in entrance of the drive. If all this is not possible, then we suggest a particular coating for those elements within the motor’s inside which are produced from chrome steel. This is as a end result of there’s a limit to the utilization of stainless-steel for heavy obligation, high-speed inner elements. This so-called CWL coating supplies insensitivity to corrosion.
Question: Do you have any examples of the place your motors can be used within the meals industry?
Answer: Stirring dough, moving and slicing sheets of dough, rotating pork belly skewers, mixing sausage meat or unwinding sausage skins, the food trade applications are endless. I’ll describe a quantity of functions in more detail, similar to using our ADVANCED LINE air motor in an agitator for the production of fruit juice. Our 300W air motor drives a propeller stirrer in a magnetic agitator on the speed of seven hundred rpm.
We also have the best drive for high-torque necessities in industrial agitators: Our ADVANCED LINE high-torque motors generate immense energy within the smallest of spaces. The 900W high-torque motor with a nominal velocity of twenty-two rpm overcomes a starting torque of 585 Nm and has a maximum diameter of 63 mm.
Another application could be found in grinding mills and conveying methods for grain processing. In this case, the major focus is on mud generation and explosion prevention. All our ADVANCED LINE motors are ATEX licensed for use in probably explosive environments. You will even find our motors used within the processing of meat, for instance in a semi-automatic assembly system for the manufacture of kebab skewers. In the skewer unit, two air motors are used to drive belts which pierce a picket skewer via pieces of meat, onion and pepper. Pressure at the skewer is 38 kg and due to this fact a high-power air motor with compact design is ideally suited to this application.
Question: What advantages does an air motor have over an electric motor in such applications?
Answer: There are many arguments in favour of using an air motor: One of the primary advantages is its high power density. Depending on the design, an air motor has solely a fifth of the mass of an electric motor, or a third of its size. This is particularly significant when using a handheld device but of course additionally for robotic techniques where the drive moves with the robot arm.
Heat additionally leaves the air motor cold. In important settings, compressed air is an unproblematic source of vitality – it doesn’t evaluate to the hazards of electrical energy. The power output from the air motor over extensive torque ranges is nearly fixed. Air motors can due to this fact be optimally operated in a large area of fluctuating hundreds. There is not any downside with load being applied on the air motor until standstill, no damages are incurred. This means it’s much less apt to stalling. After discount of the load, it’ll run once more immediately and any number of successive occasions. Air motor energy may be adapted just by adjusting the operating pressure. The velocity is decreased easily by throttling the air volume. Throttling เกจวัดแรงดันแก๊สco2 is beneficial when torque also needs to be considerably lowered. Exhaust air throttling should be chosen to reduce speed with none serious influence on the torque.
Question: Air motors are sometimes seen to be much less environment friendly compared to electric motors. Can you comment on this statement?
Answer: Air motors and electrical motors cannot be compared on a one-to-one foundation. The efficiency of a drive all the time depends on the situations of the applying. Let me use this instance to clarify: A motor which reaches speeds of 450 rpm is needed for a packaging machine. 25 Nm torque is applied at lowered speed over a protracted period of time to secure the packaging tape. Electric motors can’t be loaded over a protracted period of time with out operating the danger of overheating. Therefore, for this packaging machine, an electric motor would need to face up to high hundreds and in consequence would have to be 1170W (25 Nm x 450 rpm divided by 9550). It is a very different story with the air motor: Due to the beneficial torque traits of air motors, a lower-powered drive will suffice. You could choose an air motor with a nominal torque of 15 Nm and nominal speed of 275 rpm. Since the working torque is beneath that of the nominal torque, the air motor runs close to idle pace at 450 rpm under gentle load. The power required for this air motor is due to this fact only 430W. The vitality steadiness of an air motor is seen in a completely totally different gentle when you assume about that the air motor wanted for this packaging machine would only require a third of the power of an electric motor.
Question: DEPRAG SCHULZ GMBH u. CO. can replicate on a long time of experience in the subject of air motors. They have a broad range of high quality, globally well-liked industrial drive options. Are the ADVANCED LINE motors a special resolution for meals business applications?
Answer: It is true that our engineers have continued to optimise our air motors over the decades and our normal program has been adjusted to fulfill the wants of our prospects. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our prospects benefit from long-established reliable drive options for the meals business and medical technology. We are able to supply these motors in a large energy vary from 20 W to 1.6 kW mixed with a variety of planetary gears from our own manufacturing with speeds of seven to 24,000 rpm. This excellent spectrum of chrome steel motors has made us a market chief on this phase. You can discover the ideal solution for every performance requirement. Thanks to our improvement specialists and a high degree of vertical integration, we’re capable of react flexibly to buyer requirements, when a certain design, corresponding to a particular flange connection or particular spindle request, is not out there off the shelf. 85% of our manufactured drives are customer-specific options primarily based on normal parts.
The development and construction of top of the range air motors is considered one of the major areas of expertise at DEPRAG. The specialists in air motors, screwdriving technology, feeding technology, automation, air instruments and Green Energy generators have round 760 workers in over 50 international locations. DEPRAG is a market-leading producer of air motors with an impressive range of excessive quality stainless-steel drives and revolutionary turbines. The owner-run family enterprise provides a various vary of options inside their standard program. These particular person drive solutions could be developed and manufactured at an attractive price-performance ratio on account of the modular building system. www.deprag.com
ADVANCED LINE Air Motors
Ideal motors for top requirements of hygiene
Press Contact and Head of Marketing:
DEPRAG SCHULZ GMBH u. CO.
Carl-Schulz-Platz 1
92224 Amberg
Germany
Claudio Seidel
Tel.: 09621 371-243
Email: presse@deprag.de
Internet: www.deprag.com
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