Automated processes are commonplace apply within the meals business. Production efficiency just isn’t the only motivation, hygiene also plays a key function within the food industry. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to debate the means to design a drive to meet these necessities and incorporate each these goals.
Question: How are high requirements of hygiene met by DEPRAG?
Answer: In order to make sure that the best drive is chosen to fulfill the excessive necessities for hygiene within the meals business, we often recommend our ADVANCED LINE air vane motors. All their external elements are made from chrome steel and are impervious to regular cleansing agents. Sale ends soon of these air motors is straightforward to wash. The drives are so properly sealed with durable long-life radial shaft seals that no air can escape and equally no dirt, water or other options can penetrate the motor. The motors are even immune to water penetration from generally used cleaning spray systems. A wet environment is no concern for this motor. It can even be used underwater as in the case of many stirring purposes. All our ADVANCED LINE chrome steel motors are lubricated with food grade USDA-H1 grease and could be operated oil-free. A energy reduction of approx. 10-20% based mostly on the technical information acknowledged within the product catalog should be taken into account when designing drives for oil-free operation.
Question: Does an air motor need to boast other features for such applications?
Answer: Yes. In many functions, condensation can form in air supply strains. It is subsequently advisable that measures are taken to guarantee that the motor just isn’t located on the lowest point in the system and that it might be flushed out with water. Many users take precautionary measures, not only regarding the structure of the motor in their system, but additionally concerning using water separators or dryers in front of the drive. If all this is not attainable, then we advocate a special coating for those parts throughout the motor’s interior that are created from stainless-steel. This is because there’s a restrict to the utilization of chrome steel for heavy responsibility, high-speed inner components. This so-called CWL coating supplies insensitivity to corrosion.
Question: Do you have any examples of where your motors can be used in the meals industry?
Answer: Stirring dough, shifting and slicing sheets of dough, rotating pork belly skewers, mixing sausage meat or unwinding sausage skins, the meals business purposes are endless. I’ll describe a few applications in additional detail, similar to the usage of our ADVANCED LINE air motor in an agitator for the manufacturing of fruit juice. Our 300W air motor drives a propeller stirrer in a magnetic agitator at the pace of 700 rpm.
We even have the ideal drive for high-torque requirements in industrial agitators: Our ADVANCED LINE high-torque motors generate immense power within the smallest of areas. The 900W high-torque motor with a nominal speed of 22 rpm overcomes a starting torque of 585 Nm and has a most diameter of 63 mm.
Another utility can be present in grinding mills and conveying methods for grain processing. In this case, the primary target is on mud era and explosion prevention. All our ADVANCED LINE motors are ATEX certified for use in doubtlessly explosive environments. You will even find our motors used within the processing of meat, for example 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 wooden skewer via pieces of meat, onion and pepper. Pressure at the skewer is 38 kg and subsequently a high-power air motor with compact design is ideally suited to this software.
Question: What benefits does an air motor have over an electrical 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 dimension. This is especially significant when using a handheld device however in fact also for robotic techniques the place the drive strikes with the robot arm.
Heat additionally leaves the air motor chilly. In important settings, compressed air is an unproblematic source of power – it doesn’t evaluate to the hazards of electrical energy. The power output from the air motor over broad torque ranges is almost fixed. Air motors can subsequently be optimally operated in a large field of fluctuating loads. There is no problem with load being utilized on the air motor until standstill, no damages are incurred. This means it’s less apt to stalling. After discount of the load, it’ll run again instantly and any number of successive instances. Air motor energy may be tailored simply by adjusting the working stress. The speed is lowered easily by throttling the air volume. Throttling provide air is beneficial when torque also needs to be considerably reduced. Exhaust air throttling ought to be chosen to reduce velocity without any severe influence on the torque.
Question: Air motors are sometimes seen to be less efficient in comparison with electric motors. Can you comment on this statement?
Answer: Air motors and electrical motors cannot be compared on a one-to-one basis. The effectivity of a drive always is dependent upon the situations of the application. Let me use this instance to clarify: A motor which reaches speeds of 450 rpm is required for a packaging machine. 25 Nm torque is applied at reduced pace over a protracted period of time to secure the packaging tape. Electric motors cannot be loaded over an extended period of time without working the chance of overheating. Therefore, for this packaging machine, an electric motor would want to face up to high masses and consequently would must be 1170W (25 Nm x 450 rpm divided by 9550). It is a very completely different story with the air motor: Due to the favourable torque characteristics of air motors, a lower-powered drive will suffice. You might choose an air motor with a nominal torque of 15 Nm and nominal speed of 275 rpm. Since the working torque is below that of the nominal torque, the air motor runs near idle velocity at 450 rpm under mild load. The energy required for this air motor is therefore solely 430W. The power stability of an air motor is seen in a completely completely different mild when you assume about that the air motor wanted for this packaging machine would only require a third of the power of an electrical motor.
Question: DEPRAG SCHULZ GMBH u. CO. can replicate on many years of experience in the area of air motors. They have a extensive range of top of the range, globally well-liked industrial drive options. Are the ADVANCED LINE motors a special solution for meals industry applications?
Answer: It is true that our engineers have continued to optimise our air motors over the many years and our commonplace program has been adjusted to meet the needs of our customers. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our customers benefit from long-established dependable drive solutions for the meals business and medical know-how. We are able to supply these motors in a wide power range from 20 W to 1.6 kW mixed with a selection of planetary gears from our personal manufacturing with speeds of seven to 24,000 rpm. This excellent spectrum of stainless steel motors has made us a market leader in this section. You can find the ideal solution for each efficiency requirement. Thanks to our growth specialists and a high degree of vertical integration, we’re able to react flexibly to customer necessities, when a certain design, such as a selected flange connection or special spindle request, just isn’t out there off the shelf. 85% of our manufactured drives are customer-specific solutions primarily based on commonplace parts.
The growth and construction of high of the range air motors is probably considered one of the primary areas of experience at DEPRAG. The specialists in air motors, screwdriving technology, feeding expertise, automation, air instruments and Green Energy turbines have around 760 workers in over 50 countries. DEPRAG is a market-leading producer of air motors with an impressive vary of prime of the range stainless-steel drives and progressive generators. The owner-run family enterprise offers a various vary of options within their standard program. These particular person drive options could be developed and manufactured at an attractive price-performance ratio because of the modular building system. www.deprag.com
ADVANCED LINE Air Motors
Ideal motors for prime standards 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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