Automated processes are commonplace apply in the meals business. Production efficiency is not the only motivation, hygiene additionally plays a key position 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 requirements and incorporate both these targets.
Question: How are high requirements of hygiene met by DEPRAG?
Answer: In order to ensure that the right 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 exterior parts are produced from chrome steel and are impervious to normal cleaning brokers. The easy surface of those air motors is straightforward to scrub. The drives are so well sealed with sturdy long-life radial shaft seals that no air can escape and equally no dirt, water or other solutions can penetrate the motor. The motors are even proof against water penetration from commonly used cleansing spray techniques. A moist setting isn’t 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 meals grade USDA-H1 grease and can be operated oil-free. A power discount of approx. 10-20% based mostly on the technical knowledge stated within the product catalog should be taken into consideration 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 provide traces. It is therefore advisable that measures are taken to make certain that the motor just isn’t situated at the lowest level within the system and that it can be flushed out with water. Many users take precautionary measures, not only referring to the format of the motor of their system, but in addition concerning the usage of water separators or dryers in entrance of the drive. If all this isn’t potential, then we advocate a particular coating for those parts within the motor’s interior that are created from chrome steel. This is as a outcome of there’s a limit to the use of stainless-steel for heavy duty, high-speed inside components. This so-called CWL coating offers insensitivity to corrosion.
Question: Do you might have any examples of where your motors can be used in the meals industry?
Answer: Stirring dough, shifting and cutting sheets of dough, rotating pork belly skewers, mixing sausage meat or unwinding sausage skins, the food industry functions are infinite. 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 seven hundred rpm.
We even have the ideal drive for high-torque necessities in industrial agitators: Our ADVANCED LINE high-torque motors generate immense energy in the smallest of spaces. The 900W high-torque motor with a nominal velocity of 22 rpm overcomes a beginning torque of 585 Nm and has a maximum diameter of sixty three mm.
Another software could be found in grinding mills and conveying techniques for grain processing. In this case, the primary focus is on dust technology and explosion prevention. All our ADVANCED LINE motors are ATEX licensed for use in probably explosive environments. You will even discover our motors used within the processing of meat, for instance 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 picket skewer through 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 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 principle advantages is its excessive power density. Depending on the design, an air motor has only a fifth of the mass of an electric motor, or a 3rd of its dimension. This is especially vital when using a handheld system however of course additionally for robotic methods the place the drive strikes with the robotic arm.
Heat also leaves the air motor chilly. In important settings, compressed air is an unproblematic source of vitality – it does not examine to the hazards of electricity. The energy output from the air motor over extensive torque ranges is nearly fixed. Air motors can due to this fact be optimally operated in a wide field of fluctuating loads. There is no drawback with load being applied on the air motor till standstill, no damages are incurred. This means it’s much less apt to stalling. After reduction of the load, it will run again instantly and any number of successive times. Air motor energy can be tailored simply by adjusting the operating stress. The velocity is reduced easily by throttling the air volume. Throttling supply air is recommended when torque also wants to be considerably reduced. Exhaust air throttling must be chosen to scale back pace with none serious affect on the torque.
Question: Air motors are often seen to be less environment friendly in comparability with electric motors. Can you comment on this statement?
Answer: Air motors and electric motors cannot be in contrast on a one-to-one foundation. The effectivity of a drive at all times depends on the conditions of the application. Let me use this example to elucidate: A motor which reaches speeds of 450 rpm is required for a packaging machine. 25 Nm torque is applied at lowered speed over a protracted time frame to secure the packaging tape. Electric motors can’t be loaded over a long time period without operating the chance of overheating. Therefore, for this packaging machine, an electric motor would need to face up to excessive loads and as a result would have to be 1170W (25 Nm x 450 rpm divided by 9550). It is a completely completely different story with the air motor: Due to the beneficial torque traits of air motors, a lower-powered drive will suffice. You might select 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 near idle pace at 450 rpm beneath mild load. The power required for this air motor is due to this fact only 430W. The energy balance of an air motor is seen in a very completely different light when you consider that the air motor needed for this packaging machine would solely require a third of the power of an electrical motor.
Question: DEPRAG SCHULZ GMBH u. CO. can mirror on many years of experience in the subject of air motors. They have a variety of high quality, globally well-liked industrial drive solutions. Are the ADVANCED LINE motors a particular solution 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 fulfill the wants of our prospects. 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 offer these motors in a wide power range from 20 W to 1.6 kW combined with quite lots of planetary gears from our personal production with speeds of 7 to 24,000 rpm. This excellent spectrum of chrome steel motors has made us a market leader on this segment. You can find the perfect solution for each efficiency requirement. Thanks to our improvement specialists and a high stage of vertical integration, we are able to react flexibly to buyer necessities, when a sure design, similar to a selected flange connection or particular spindle request, just isn’t obtainable off the shelf. 85% of our manufactured drives are customer-specific solutions primarily based on commonplace elements.
The growth and construction of excessive quality air motors is among the primary areas of experience at DEPRAG. เกจวัดแรงดันน้ำ4หุน in air motors, screwdriving technology, feeding technology, automation, air tools and Green Energy turbines have around 760 workers in over 50 nations. DEPRAG is a market-leading manufacturer of air motors with a formidable vary of top quality chrome steel drives and innovative generators. The owner-run household business presents a various vary of choices within their standard program. These individual drive solutions can be developed and manufactured at a beautiful price-performance ratio because of the modular building system. www.deprag.com
ADVANCED LINE Air Motors
Ideal motors for prime requirements of hygiene
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