Automated processes are commonplace practice in the food business. Production efficiency isn’t the one motivation, hygiene additionally performs a key role within the food trade. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to discuss how to design a drive to satisfy these necessities and incorporate each these goals.
Question: How are high standards of hygiene met by DEPRAG?
Answer: In order to make sure that the best drive is chosen to satisfy the high requirements for hygiene in the meals business, we normally advocate our ADVANCED LINE air vane motors. All their external parts are produced from stainless steel and are impervious to normal cleansing agents. The clean floor of those air motors is easy to scrub. The drives are so well sealed with durable long-life radial shaft seals that no air can escape and equally no filth, water or other options can penetrate the motor. The motors are even immune to water penetration from generally used cleansing spray techniques. 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 mostly on the technical information said in 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 many functions, condensation can type in air provide strains. It is therefore advisable that measures are taken to make certain that the motor isn’t situated at the lowest level in the system and that it could be flushed out with water. Many users take precautionary measures, not solely relating to the format of the motor in their system, but in addition regarding using water separators or dryers in front of the drive. If all this is not possible, then we suggest a special coating for these components inside the motor’s interior that are produced from stainless-steel. This is as a outcome of there’s a restrict to the use of chrome steel for heavy obligation, high-speed inner elements. This so-called CWL coating supplies insensitivity to corrosion.
Question: Do you might have any examples of where your motors can be utilized within the food industry?
Answer: Stirring dough, moving and slicing sheets of dough, rotating pork stomach skewers, mixing sausage meat or unwinding sausage skins, the meals industry functions are countless. I’ll describe a couple of purposes in more element, corresponding to the use of 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 at the speed of 700 rpm.
We also have the best drive for high-torque requirements in industrial agitators: Our ADVANCED LINE high-torque motors generate immense power in the smallest of spaces. The 900W high-torque motor with a nominal speed of 22 rpm overcomes a beginning torque of 585 Nm and has a maximum diameter of sixty three mm.
Another application could be present in grinding mills and conveying methods for grain processing. In this case, the primary focus is on mud generation and explosion prevention. All our ADVANCED LINE motors are ATEX certified to be used in probably explosive environments. You will even find our motors used in 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 by way of 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 utility.
Question: What advantages does an air motor have over an electrical motor in such applications?
Answer: There are many arguments in favour of utilizing an air motor: One of the primary benefits is its excessive power 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 important when utilizing a handheld gadget but in fact also for robotic systems where the drive moves with the robot arm.
Heat additionally leaves the air motor chilly. In crucial settings, compressed air is an unproblematic source of power – it does not examine to the dangers of electricity. เกจวัดแรงดันไฟฟ้า from the air motor over wide torque ranges is nearly fixed. Air motors can due to this fact be optimally operated in a wide area of fluctuating loads. There isn’t any drawback with load being applied on the air motor till standstill, no damages are incurred. This means it’s less apt to stalling. After reduction of the load, it will run once more instantly and any number of successive occasions. Air motor energy could be adapted simply by adjusting the operating strain. The pace is reduced easily by throttling the air volume. Throttling supply air is recommended when torque should also be considerably reduced. Exhaust air throttling should be chosen to reduce pace with none critical affect on the torque.
Question: Air motors are sometimes seen to be much less environment friendly compared to electric motors. Can you touch upon this statement?
Answer: Air motors and electrical motors cannot be in contrast on a one-to-one basis. The efficiency of a drive all the time is determined by the conditions 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 pace over a long period of time to secure the packaging tape. Electric motors cannot be loaded over an extended time frame without operating the danger of overheating. Therefore, for this packaging machine, an electric motor would want to withstand high 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 choose an air motor with a nominal torque of 15 Nm and nominal pace of 275 rpm. Since the working torque is under that of the nominal torque, the air motor runs close to idle pace at 450 rpm under gentle load. The energy required for this air motor is therefore solely 430W. The power stability of an air motor is seen in a totally totally different light when you assume about that the air motor needed for this packaging machine would only require a third of the power of an electrical motor.
Question: DEPRAG SCHULZ GMBH u. CO. can mirror on many years of expertise in the subject of air motors. They have a extensive range of excessive quality, globally well-liked industrial drive options. Are the ADVANCED LINE motors a particular answer for meals business applications?
Answer: It is true that our engineers have continued to optimise our air motors over the a long time and our standard program has been adjusted to meet the wants of our customers. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our customers profit from long-established dependable drive solutions for the meals industry and medical expertise. We are capable of provide these motors in a wide power vary from 20 W to 1.6 kW mixed with quite a lot of planetary gears from our personal production with speeds of seven to 24,000 rpm. This outstanding spectrum of chrome steel motors has made us a market chief in this segment. You can find the perfect solution for each efficiency requirement. Thanks to our development specialists and a excessive stage of vertical integration, we are able to react flexibly to buyer necessities, when a certain design, such as a specific flange connection or particular spindle request, isn’t obtainable off the shelf. 85% of our manufactured drives are customer-specific solutions primarily based on commonplace components.
The growth and construction of high of the range air motors is among the major areas of experience at DEPRAG. The specialists in air motors, screwdriving know-how, feeding technology, automation, air tools and Green Energy generators have around 760 workers in over 50 international locations. DEPRAG is a market-leading manufacturer of air motors with an impressive range of high of the range stainless-steel drives and innovative turbines. The owner-run household enterprise offers a various vary of choices within their commonplace program. These particular person drive solutions can be developed and manufactured at an attractive price-performance ratio as a outcome of the modular construction system.
Ideal motors for top requirements of hygiene
Press Contact and Head of Marketing:
Carl-Schulz-Platz 1
92224 Amberg
Claudio Seidel
Tel.: 09621 371-243