Automated processes are normal follow within the meals trade. Production effectivity is not the one motivation, hygiene additionally plays a key role in the food trade. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to discuss how to design a drive to fulfill these necessities and incorporate each these objectives.
Question: How are excessive requirements of hygiene met by DEPRAG?
Answer: In order to ensure that the proper drive is selected to meet the high requirements for hygiene within the food business, we usually advocate our ADVANCED LINE air vane motors. All their exterior components are produced from stainless-steel and are impervious to regular cleaning agents. The smooth floor of these air motors is straightforward to wash. The drives are so nicely sealed with durable long-life radial shaft seals that no air can escape and equally no filth, water or different options can penetrate the motor. The motors are even resistant to water penetration from generally used cleaning spray methods. A wet setting isn’t any concern for this motor. It can even be used underwater as in the case of many stirring functions. All our ADVANCED LINE chrome steel motors are lubricated with food grade USDA-H1 grease and may be operated oil-free. A power reduction of approx. 10-20% based on the technical data stated in the product catalog ought to 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 purposes, condensation can kind in air provide lines. It is therefore advisable that measures are taken to make certain that the motor isn’t situated at the lowest level within the system and that it might be flushed out with water. Many users take precautionary measures, not only regarding the layout of the motor of their system, but in addition concerning using water separators or dryers in front of the drive. If all this isn’t possible, then we advocate a particular coating for these components inside the motor’s inside which are made from stainless-steel. This is because there is a limit to the use of stainless steel for heavy responsibility, high-speed internal components. This so-called CWL coating offers insensitivity to corrosion.
Question: Do you could have any examples of the place your motors can be used within the meals industry?
Answer: Stirring dough, transferring and chopping sheets of dough, rotating pork belly skewers, mixing sausage meat or unwinding sausage skins, the meals industry functions are endless. I’ll describe a couple of functions in additional detail, similar to using 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 on the velocity of 700 rpm.
We even have the perfect drive for high-torque necessities in industrial agitators: Our ADVANCED LINE high-torque motors generate immense power within the smallest of spaces. The 900W high-torque motor with a nominal speed of twenty-two rpm overcomes a beginning torque of 585 Nm and has a maximum diameter of 63 mm.
Another application may be found in grinding mills and conveying techniques for grain processing. In this case, the focus is on mud era and explosion prevention. All our ADVANCED LINE motors are ATEX certified for use in probably explosive environments. You will even discover our motors used in 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 therefore a high-power air motor with compact design is ideally suited to this utility.
Question: What advantages does an air motor have over an electric motor in such applications?
Answer: There are many arguments in favour of utilizing an air motor: One of the main 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 3rd of its dimension. This is particularly important when utilizing a handheld gadget however after all also for robotic methods where the drive strikes with the robotic arm.
Heat also leaves the air motor cold. In important settings, compressed air is an unproblematic source of power – it doesn’t examine to the dangers of electricity. The energy output from the air motor over wide torque ranges is almost fixed. Air motors can due to this fact be optimally operated in a large field of fluctuating masses. There isn’t any problem with load being utilized on the air motor until standstill, no damages are incurred. This means it’s less apt to stalling. After reduction of the load, it’ll run once more instantly and any variety of successive instances. Air motor energy could be tailored just by adjusting the operating strain. The velocity is decreased easily by throttling the air quantity. Throttling supply air is beneficial when torque should also be considerably lowered. Exhaust air throttling must be chosen to scale back velocity with none severe affect on the torque.
Question: Air motors are often seen to be much less efficient compared to electrical motors. Can you touch upon this statement?
Answer: Air motors and electrical motors can’t be compared on a one-to-one foundation. The effectivity of a drive at all times is dependent upon the conditions of the application. Let me use this example to explain: A motor which reaches speeds of 450 rpm is required for a packaging machine. 25 Nm torque is applied at lowered velocity over a long period of time to secure the packaging tape. Electric motors can’t be loaded over a protracted time period without working the risk of overheating. Therefore, for this packaging machine, an electric motor would want to face up to excessive loads and consequently would have to be 1170W (25 Nm x 450 rpm divided by 9550). It is a very completely different story with the air motor: Due to the beneficial torque traits of air motors, a lower-powered drive will suffice. You may select an air motor with a nominal torque of 15 Nm and nominal velocity of 275 rpm. Since the working torque is beneath that of the nominal torque, the air motor runs close to idle speed at 450 rpm beneath gentle load. pressure gauge 10 bar required for this air motor is subsequently only 430W. The energy balance of an air motor is seen in a totally different light when you consider that the air motor needed for this packaging machine would solely require a third of the facility of an electric motor.
Question: DEPRAG SCHULZ GMBH u. CO. can mirror on decades of experience in the subject of air motors. They have a broad range of high quality, globally popular industrial drive solutions. Are the ADVANCED LINE motors a special solution 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 needs of our prospects. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our prospects benefit from long-established dependable drive options for the food business and medical know-how. We are capable of supply these motors in a wide energy vary from 20 W to 1.6 kW mixed with quite so much of planetary gears from our personal manufacturing with speeds of 7 to 24,000 rpm. This excellent spectrum of stainless-steel motors has made us a market leader on this section. You can find the perfect answer for every efficiency requirement. Thanks to our growth specialists and a high degree of vertical integration, we are able to react flexibly to customer necessities, when a certain design, such as a particular flange connection or particular spindle request, is not obtainable off the shelf. 85% of our manufactured drives are customer-specific solutions primarily based on normal parts.
The improvement and construction of prime of the range air motors is likely certainly 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 round 760 staff in over 50 nations. DEPRAG is a market-leading producer of air motors with an impressive vary of high quality chrome steel drives and innovative turbines. The owner-run household business offers a various range of choices inside their commonplace program. These particular person drive options could be developed and manufactured at a gorgeous price-performance ratio because of the modular building system. www.deprag.com
ADVANCED LINE Air Motors
Ideal motors for top 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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