Automated processes are standard apply in the food trade. Production effectivity just isn’t the only motivation, hygiene also performs a key role in the food trade. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to debate the way to design a drive to satisfy these necessities and incorporate each these objectives.
Question: How are excessive requirements of hygiene met by DEPRAG?
ตัววัดแรงดัน : In order to make certain that the proper drive is chosen to satisfy the excessive requirements for hygiene in the food business, we normally advocate our ADVANCED LINE air vane motors. All their external components are made from stainless steel and are impervious to regular cleansing brokers. The smooth floor of these air motors is simple to clean. 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 proof against water penetration from commonly used cleaning spray techniques. A moist environment 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 energy discount of approx. 10-20% based on the technical information said in the product catalog should be taken into consideration when designing drives for oil-free operation.
Question: Does an air motor have to boast other features for such applications?
Answer: Yes. In many applications, condensation can kind in air provide lines. It is therefore advisable that measures are taken to make sure that the motor just isn’t located on the lowest point in the system and that it could be flushed out with water. Many users take precautionary measures, not solely referring to the layout of the motor in their system, but additionally concerning the use of water separators or dryers in front of the drive. If all this is not attainable, then we recommend a special coating for those components throughout the motor’s interior that are created from chrome steel. This is as a outcome of there’s a limit to the utilization of chrome steel for heavy responsibility, high-speed inner components. This so-called CWL coating offers insensitivity to corrosion.
Question: Do you could have any examples of where your motors can be used in the food industry?
Answer: Stirring dough, shifting and cutting sheets of dough, rotating pork stomach skewers, mixing sausage meat or unwinding sausage skins, the meals trade applications are endless. I’ll describe a few applications in more element, similar to the utilization 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 pace of seven hundred rpm.
We even have the best 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 starting torque of 585 Nm and has a most diameter of sixty three mm.
Another utility may be present in grinding mills and conveying techniques for grain processing. In this case, the major target is on dust technology and explosion prevention. All our ADVANCED LINE motors are ATEX certified for use in potentially explosive environments. You will even discover our motors used within 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 by way of pieces of meat, onion and pepper. Pressure on 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 electric motor in such applications?
Answer: There are many arguments in favour of using an air motor: One of the main advantages 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 particularly important when using a handheld system but of course additionally for robotic techniques where the drive moves with the robot arm.
Heat additionally leaves the air motor cold. In important settings, compressed air is an unproblematic source of energy – it does not evaluate to the risks of electricity. The power output from the air motor over extensive torque ranges is nearly fixed. Air motors can therefore be optimally operated in a wide field of fluctuating loads. There is not any drawback with load being utilized on the air motor till standstill, no damages are incurred. This means it is much less apt to stalling. After discount of the load, it will run again immediately and any number of successive occasions. Air motor power could be tailored just by adjusting the operating strain. The speed is lowered smoothly by throttling the air quantity. Throttling supply air is beneficial when torque also needs to be significantly 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 comment on this statement?
Answer: Air motors and electric motors cannot be compared on a one-to-one basis. The efficiency of a drive at all times depends on the situations of the applying. Let me use this example 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 an extended time frame to secure the packaging tape. Electric motors can’t be loaded over a protracted time frame with out operating the chance of overheating. Therefore, for this packaging machine, an electrical motor would need to withstand high loads and in consequence would must be 1170W (25 Nm x 450 rpm divided by 9550). It is a very different story with the air motor: Due to the favourable 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 close to idle speed at 450 rpm beneath gentle load. The power required for this air motor is subsequently solely 430W. The vitality balance of an air motor is seen in a very totally different gentle 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 a long time of experience in the subject of air motors. They have a variety of prime of the range, globally popular industrial drive options. 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 a long time and our normal program has been adjusted to fulfill the wants of our clients. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our customers profit from long-established reliable drive options for the food industry and medical know-how. We are able to provide these motors in a wide energy vary from 20 W to 1.6 kW mixed with a big selection of planetary gears from our own manufacturing with speeds of seven to 24,000 rpm. This outstanding spectrum of stainless steel motors has made us a market chief in this section. You can discover the ideal answer for every performance requirement. Thanks to our growth specialists and a excessive level of vertical integration, we are able to react flexibly to customer requirements, when a certain design, such as a selected flange connection or special spindle request, is not out there off the shelf. 85% of our manufactured drives are customer-specific solutions based on standard elements.
The development and development of top of the range air motors is likely certainly one of the primary 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 employees in over 50 nations. DEPRAG is a market-leading producer of air motors with a formidable range of top quality stainless steel drives and progressive 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 an attractive price-performance ratio because of the modular construction system. www.deprag.com
ADVANCED LINE Air Motors
Ideal motors for prime requirements 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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