Automated processes are standard practice in the food business. Production effectivity isn’t the only motivation, hygiene additionally plays a key role in the meals industry. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to debate the way to design a drive to fulfill these requirements and incorporate each these targets.
Question: How are high requirements of hygiene met by DEPRAG?
Answer: In order to make certain that the proper drive is selected to meet the excessive necessities for hygiene within the meals trade, we usually advocate our ADVANCED LINE air vane motors. All their external elements are created from stainless steel and are impervious to normal cleaning agents. The smooth floor of those air motors is straightforward to clean. The drives are so nicely sealed with sturdy long-life radial shaft seals that no air can escape and equally no dust, water or different solutions can penetrate the motor. The motors are even resistant to water penetration from commonly used cleansing spray systems. A wet surroundings is not any concern for this motor. It can even be used underwater as in the case of many stirring applications. All our ADVANCED LINE stainless steel motors are lubricated with food grade USDA-H1 grease and may be operated oil-free. A energy reduction of approx. 10-20% based on the technical data acknowledged within the product catalog ought to be taken under consideration when designing drives for oil-free operation.
Question: Does an air motor have to boast different options for such applications?
Answer: Yes. In digital pressure gauge , condensation can form in air provide strains. It is therefore advisable that measures are taken to ensure that the motor just isn’t positioned on the lowest point within the system and that it can be flushed out with water. Many customers take precautionary measures, not solely regarding the structure of the motor of their system, but in addition regarding the use of water separators or dryers in entrance of the drive. If all this isn’t attainable, then we advocate a special coating for these parts throughout the motor’s interior which are produced from chrome steel. This is as a end result of there’s a limit to the use of stainless steel for heavy obligation, high-speed inside elements. This so-called CWL coating offers insensitivity to corrosion.
Question: Do you have any examples of the place your motors can be used within the food industry?
Answer: Stirring dough, moving and cutting sheets of dough, rotating pork stomach skewers, mixing sausage meat or unwinding sausage skins, the meals industry purposes are endless. I’ll describe a number of applications in more detail, such as 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 speed of 700 rpm.
We also have the perfect drive for high-torque requirements 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 speed of twenty-two rpm overcomes a starting torque of 585 Nm and has a maximum diameter of 63 mm.
Another utility may be found in grinding mills and conveying techniques for grain processing. In this case, the primary focus is on mud technology and explosion prevention. All our ADVANCED LINE motors are ATEX licensed for use in probably explosive environments. You will even find our motors used in the processing of meat, for example in a semi-automatic meeting 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 items 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 software.
Question: What benefits 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 principle advantages is its high energy density. Depending on the design, an air motor has only a fifth of the mass of an electrical motor, or a 3rd of its dimension. This is especially significant when using a handheld system however in fact also for robotic systems where the drive moves with the robotic arm.
Heat additionally leaves the air motor chilly. In critical settings, compressed air is an unproblematic supply of vitality – it doesn’t examine to the dangers of electrical energy. The energy output from the air motor over broad torque ranges is nearly fixed. Air motors can subsequently be optimally operated in a large subject of fluctuating masses. There isn’t any drawback with load being utilized on the air motor until standstill, no damages are incurred. This means it is much less apt to stalling. After reduction of the load, it will run once more instantly and any variety of successive times. Air motor power may be adapted just by adjusting the working strain. The pace is lowered easily by throttling the air volume. Throttling provide air is beneficial when torque must also be significantly lowered. Exhaust air throttling must be chosen to reduce velocity with none serious affect on the torque.
Question: Air motors are sometimes seen to be less efficient compared to electric motors. Can you touch upon this statement?
Answer: Air motors and electric motors can’t be in contrast on a one-to-one basis. The effectivity of a drive all the time is determined by 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 utilized at decreased speed over a long period of time to safe the packaging tape. Electric motors cannot be loaded over an extended time frame with out working the chance of overheating. Therefore, for this packaging machine, an electric motor would need to resist high masses and as a result would have to be 1170W (25 Nm x 450 rpm divided by 9550). It is a totally different story with the air motor: Due to the favourable torque traits of air motors, a lower-powered drive will suffice. You might choose an air motor with a nominal torque of 15 Nm and nominal pace of 275 rpm. Since the working torque is below that of the nominal torque, the air motor runs close to idle speed at 450 rpm beneath mild load. The energy required for this air motor is subsequently only 430W. The energy steadiness of an air motor is seen in a totally completely different light when you assume about that the air motor needed for this packaging machine would only require a 3rd of the ability of an electric motor.
Question: DEPRAG SCHULZ GMBH u. CO. can replicate on many years of expertise in the subject of air motors. They have a variety of high quality, globally in style industrial drive options. Are the ADVANCED LINE motors a particular answer for food industry applications?
Answer: It is true that our engineers have continued to optimise our air motors over the decades and our standard program has been adjusted to meet the wants of our clients. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our prospects benefit from long-established dependable drive solutions for the meals business and medical expertise. We are able to offer these motors in a wide energy range from 20 W to 1.6 kW mixed with a wide 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 phase. You can find the ideal resolution for every performance requirement. Thanks to our development specialists and a excessive level of vertical integration, we’re able to react flexibly to customer requirements, when a certain design, similar to a selected flange connection or special spindle request, is not obtainable off the shelf. 85% of our manufactured drives are customer-specific solutions based mostly on normal elements.
The growth and building of top of the range air motors is certainly one of the primary areas of experience at DEPRAG. The specialists in air motors, screwdriving technology, feeding technology, automation, air tools and Green Energy generators have around 760 staff in over 50 nations. DEPRAG is a market-leading manufacturer of air motors with a powerful range of excessive quality chrome steel drives and innovative turbines. The owner-run family enterprise presents a diverse range of options inside their normal program. These individual drive options could be developed and manufactured at an attractive price-performance ratio as a end result 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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