Automated processes are commonplace apply in the meals business. Production efficiency just isn’t the one motivation, hygiene additionally performs a key position within the meals business. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to discuss how to design a drive to fulfill these necessities and incorporate both these goals.
Question: How are high standards of hygiene met by DEPRAG?
Answer: In order to make certain that the best drive is selected to satisfy the excessive requirements for hygiene within the meals trade, we usually recommend our ADVANCED LINE air vane motors. All their external parts are produced from stainless steel and are impervious to regular cleaning brokers. The smooth floor of these air motors is simple to clean. The drives are so nicely sealed with sturdy long-life radial shaft seals that no air can escape and equally no dirt, water or different solutions can penetrate the motor. The motors are even proof against water penetration from generally used cleaning spray methods. A moist setting is no concern for this motor. It may even be used underwater as in the case of many stirring functions. All our ADVANCED LINE stainless steel motors are lubricated with meals grade USDA-H1 grease and may be operated oil-free. A energy reduction of approx. 10-20% based mostly on the technical information stated within the product catalog must 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 purposes, condensation can kind in air supply traces. It is therefore advisable that measures are taken to make certain that the motor isn’t located on the lowest point in the system and that it could be flushed out with water. Many customers take precautionary measures, not solely referring to the structure of the motor in their system, but additionally regarding the utilization of water separators or dryers in front of the drive. If all this is not possible, then we suggest a particular coating for these components within the motor’s inside which are created from stainless steel. This is as a outcome of there’s a limit to using chrome steel for heavy responsibility, high-speed internal elements. This so-called CWL coating supplies insensitivity to corrosion.
Question: Do you have any examples of the place your motors can be used within the food industry?
Answer: Stirring dough, transferring and slicing sheets of dough, rotating pork stomach skewers, mixing sausage meat or unwinding sausage skins, the food business applications are endless. I’ll describe a couple of functions in more detail, 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 pace of seven-hundred rpm.
We also have the best drive for high-torque requirements in industrial agitators: Our ADVANCED LINE high-torque motors generate immense power within the smallest of spaces. The 900W high-torque motor with a nominal pace of twenty-two rpm overcomes a starting torque of 585 Nm and has a maximum diameter of 63 mm.
Another software can be found in grinding mills and conveying systems for grain processing. In this case, the major target is on mud era 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 assembly system for the manufacture of kebab skewers. In the skewer unit, two air motors are used to drive belts which pierce a picket 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 benefits 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 advantages is its excessive 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 measurement. This is particularly vital when using a handheld system but of course additionally for robotic techniques 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 energy – it does not compare to the risks of electricity. The energy output from the air motor over broad torque ranges is type of constant. Air motors can due to this fact be optimally operated in a large area of fluctuating masses. There is not any drawback with load being applied 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’ll run again instantly and any number of successive occasions. Air motor energy may be adapted simply by adjusting the working stress. The velocity is lowered smoothly by throttling the air volume. Throttling provide air is recommended when torque also wants to be considerably decreased. Exhaust air throttling should be chosen to scale back velocity with none critical influence on the torque.
Question: Air motors are sometimes seen to be less environment friendly in comparison with electrical motors. Can you comment on this statement?
Answer: Air motors and electrical motors can’t be in contrast on a one-to-one foundation. The effectivity of a drive at all times is dependent upon the situations of the application. Let me use this instance to explain: A motor which reaches speeds of 450 rpm is needed for a packaging machine. 25 Nm torque is applied at reduced velocity over an extended period of time to safe the packaging tape. Electric motors cannot be loaded over an extended time frame without running the danger of overheating. Therefore, for this packaging machine, an electric motor would want to resist excessive 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 characteristics of air motors, a lower-powered drive will suffice. You may choose an air motor with a nominal torque of 15 Nm and nominal speed of 275 rpm. Since the working torque is beneath that of the nominal torque, the air motor runs close to idle pace at 450 rpm beneath mild load. The power required for this air motor is due to this fact solely 430W. The vitality steadiness of an air motor is seen in a very different light when you assume about that the air motor wanted for this packaging machine would solely require a third of the power of an electrical motor.
xp2i : DEPRAG SCHULZ GMBH u. CO. can mirror on many years of experience in the field of air motors. They have a variety of excessive quality, globally in style industrial drive solutions. Are the ADVANCED LINE motors a particular solution for meals trade 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 customers. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our prospects profit from long-established dependable drive options for the meals trade and medical know-how. We are in a place to provide these motors in a wide energy vary from 20 W to 1.6 kW combined with quite a lot of planetary gears from our own manufacturing with speeds of 7 to 24,000 rpm. This outstanding spectrum of stainless-steel motors has made us a market chief on this section. You can find the best resolution for each efficiency requirement. Thanks to our improvement specialists and a excessive degree of vertical integration, we’re able to react flexibly to customer necessities, when a sure design, corresponding to a particular flange connection or particular spindle request, isn’t available off the shelf. 85% of our manufactured drives are customer-specific options primarily based on normal components.
The growth and development of high quality air motors is one of the primary areas of expertise at DEPRAG. The specialists in air motors, screwdriving know-how, feeding technology, automation, air tools and Green Energy generators have round 760 employees in over 50 nations. DEPRAG is a market-leading manufacturer of air motors with an impressive vary of top of the range stainless-steel drives and innovative generators. The owner-run family enterprise presents a various range of options inside their standard program. These particular person drive solutions can be developed and manufactured at a beautiful price-performance ratio as a result 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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