Automated processes are standard follow in the food industry. Production efficiency is not the one motivation, hygiene also performs a key position within the food industry. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to debate the way to design a drive to meet these necessities and incorporate both these goals.
Question: How are excessive requirements of hygiene met by DEPRAG?
Answer: In order to ensure that the proper drive is chosen to satisfy the high requirements for hygiene within the meals industry, we usually advocate our ADVANCED LINE air vane motors. All their exterior parts are made from stainless-steel and are impervious to normal cleaning agents. The easy floor of those air motors is straightforward to wash. The drives are so well sealed with sturdy long-life radial shaft seals that no air can escape and equally no dust, water or other options can penetrate the motor. The motors are even proof against water penetration from commonly used cleansing spray methods. A moist environment is not 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 can be operated oil-free. A power discount of approx. 10-20% based mostly on the technical information stated within the product catalog ought to be taken into consideration when designing drives for oil-free operation.
Question: Does an air motor need to boast different options for such applications?
Answer: Yes. In many applications, condensation can type in air supply strains. It is due to this fact advisable that measures are taken to ensure that the motor is not located at the lowest level 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 in their system, but in addition regarding the use of water separators or dryers in front of the drive. If all this isn’t attainable, then we suggest a particular coating for these parts within the motor’s inside that are produced from stainless-steel. This is because there’s a limit to using stainless steel for heavy obligation, high-speed inside parts. This so-called CWL coating supplies insensitivity to corrosion.
Question: Do you’ve any examples of where your motors can be used in the food industry?
Answer: Stirring dough, transferring and cutting sheets of dough, rotating pork belly skewers, mixing sausage meat or unwinding sausage skins, the meals trade applications are countless. I’ll describe a few purposes in additional detail, corresponding to using 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 also have the ideal drive for high-torque necessities in industrial agitators: Our ADVANCED LINE high-torque motors generate immense energy in the smallest of areas. 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 63 mm.
Another application may be found in grinding mills and conveying techniques for grain processing. In this case, the major target is on mud generation 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 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 wood skewer via items of meat, onion and pepper. Pressure on the skewer is 38 kg and due to this fact a high-power air motor with compact design is ideally suited to this application.
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 principle advantages is its high 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 size. This is particularly important when utilizing a handheld system but of course also for robotic systems the place the drive strikes with the robotic arm.
Heat also leaves the air motor cold. In important settings, compressed air is an unproblematic supply of power – it doesn’t examine to the hazards of electricity. The energy output from the air motor over broad torque ranges is nearly constant. Air motors can subsequently be optimally operated in a wide field of fluctuating loads. There is no problem with load being applied 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’ll run once more instantly and any number of successive occasions. Air motor energy may be adapted just by adjusting the working pressure. The velocity is decreased smoothly by throttling the air volume. Throttling provide air is recommended when torque also wants to be significantly reduced. Exhaust air throttling must be chosen to reduce velocity without any severe affect on the torque.
เกวัดแรงดัน : Air motors are sometimes seen to be much less efficient in comparability with electrical motors. Can you touch upon this statement?
Answer: Air motors and electrical motors can’t be in contrast on a one-to-one basis. The effectivity of a drive at all times depends on the circumstances of the applying. Let me use this instance to explain: A motor which reaches speeds of 450 rpm is required for a packaging machine. 25 Nm torque is applied at decreased velocity over a protracted time period to safe the packaging tape. Electric motors cannot be loaded over a long period of time with out running the risk of overheating. Therefore, for this packaging machine, an electrical motor would want to face up to high masses and consequently would have to be 1170W (25 Nm x 450 rpm divided by 9550). It is a totally completely different story with the air motor: Due to the favourable 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 below that of the nominal torque, the air motor runs near idle pace at 450 rpm beneath gentle load. The power required for this air motor is due to this fact only 430W. The vitality steadiness of an air motor is seen in a completely different light when you assume about that the air motor wanted 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 a long time of experience within the field of air motors. They have a extensive range of prime quality, globally popular industrial drive solutions. Are the ADVANCED LINE motors a special resolution for food business applications?
Answer: It is true that our engineers have continued to optimise our air motors over the many years and our normal 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 food trade and medical technology. We are in a place to provide these motors in a large energy range from 20 W to 1.6 kW combined with quite lots of planetary gears from our own production 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 discover the best solution for every efficiency requirement. Thanks to our improvement specialists and a excessive degree of vertical integration, we are in a place to react flexibly to buyer necessities, when a certain design, similar to a selected flange connection or special spindle request, isn’t available off the shelf. 85% of our manufactured drives are customer-specific options based mostly on normal elements.
The development and building of prime of the range air motors is doubtless one of the major areas of expertise at DEPRAG. The specialists in air motors, screwdriving technology, feeding technology, automation, air tools and Green Energy turbines have around 760 workers in over 50 countries. DEPRAG is a market-leading manufacturer of air motors with an impressive range of high quality chrome steel drives and progressive generators. The owner-run household business provides a various vary of options within their normal program. These individual drive solutions may be developed and manufactured at a beautiful price-performance ratio as a 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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