Ensure top-notch reliability with the best drive for the job

Automated processes are commonplace follow in the meals industry. Production efficiency isn’t the only motivation, hygiene also performs a key function in the food trade. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to discuss how to design a drive to meet these requirements and incorporate each these goals.
Question: How are excessive requirements of hygiene met by DEPRAG?
Answer: In order to guarantee that the proper drive is chosen to satisfy the excessive requirements for hygiene in the meals industry, we normally suggest our ADVANCED LINE air vane motors. All their external parts are produced from stainless-steel and are impervious to regular cleansing brokers. The clean floor of these air motors is simple to wash. The drives are so properly sealed with durable long-life radial shaft seals that no air can escape and equally no dirt, water or other options can penetrate the motor. The motors are even proof against water penetration from generally used cleaning spray systems. A wet 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 chrome steel motors are lubricated with food grade USDA-H1 grease and could be operated oil-free. A energy discount of approx. 10-20% based on the technical data acknowledged within the product catalog must be taken into consideration when designing drives for oil-free operation.
Question: Does an air motor must boast different options for such applications?
Answer: Yes. In many functions, condensation can type in air provide strains. It is subsequently advisable that measures are taken to make certain that the motor is not positioned at the lowest level within the system and that it can be flushed out with water. Many customers take precautionary measures, not solely referring to the layout of the motor in their system, but also concerning using water separators or dryers in front of the drive. If all this isn’t potential, then we recommend a particular coating for these components throughout the motor’s interior that are created from stainless-steel. This is because there is a limit to the usage of stainless steel for heavy duty, high-speed internal parts. This so-called CWL coating provides insensitivity to corrosion.
Question: Do you could have any examples of the place your motors can be utilized within the meals industry?
Answer: Stirring dough, moving and slicing sheets of dough, rotating pork belly skewers, mixing sausage meat or unwinding sausage skins, the food industry functions are infinite. I’ll describe a quantity of functions in additional detail, similar 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 on the velocity 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 within the smallest of areas. The 900W high-torque motor with a nominal speed of twenty-two rpm overcomes a starting torque of 585 Nm and has a most diameter of sixty three mm.
Another application may be present in grinding mills and conveying systems for grain processing. In this case, the main focus is on mud generation and explosion prevention. All our ADVANCED LINE motors are ATEX certified for use in doubtlessly explosive environments. You will even find 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 picket 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 utility.
Premiere : What advantages does an air motor have over an electric motor in such applications?
Answer: There are many arguments in favour of utilizing an air motor: One of the main advantages is its excessive power density. Depending on the design, an air motor has solely a fifth of the mass of an electric motor, or a third of its size. This is particularly important when utilizing a handheld gadget but of course also for robotic techniques the place the drive moves 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 compare to the hazards of electricity. The energy output from the air motor over wide torque ranges is almost constant. Air motors can due to this fact be optimally operated in a large subject of fluctuating hundreds. There is not any problem 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 variety of successive occasions. Air motor energy may be tailored simply by adjusting the operating strain. The pace is lowered easily by throttling the air volume. Throttling supply air is recommended when torque should also be significantly decreased. Exhaust air throttling must be chosen to reduce back pace with none critical influence on the torque.
Question: Air motors are sometimes seen to be much less efficient in comparability with electrical motors. Can you comment on this statement?
Answer: Air motors and electric motors cannot be in contrast on a one-to-one foundation. The efficiency of a drive all the time is dependent upon the situations of the applying. Let me use this example to elucidate: A motor which reaches speeds of 450 rpm is needed for a packaging machine. 25 Nm torque is applied at reduced speed over a protracted time frame to safe the packaging tape. Electric motors cannot be loaded over a protracted period of time without working the danger of overheating. Therefore, for this packaging machine, an electric motor would need to resist high loads and consequently would need 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 favourable torque characteristics of air motors, a lower-powered drive will suffice. You could select an air motor with a nominal torque of 15 Nm and nominal pace of 275 rpm. Since the working torque is beneath that of the nominal torque, the air motor runs close to idle velocity at 450 rpm under mild load. The power required for this air motor is subsequently solely 430W. The energy stability of an air motor is seen in a totally totally different light when you think about that the air motor needed for this packaging machine would solely require a third of the ability of an electric motor.
Question: DEPRAG SCHULZ GMBH u. CO. can replicate on many years of expertise within the area of air motors. They have a extensive range of high quality, globally popular industrial drive options. Are the ADVANCED LINE motors a particular answer for food business applications?
Answer: It is true that our engineers have continued to optimise our air motors over the decades 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 prospects profit from long-established reliable drive solutions for the meals business and medical expertise. We are able to supply these motors in a large energy range from 20 W to 1.6 kW mixed with a big selection of planetary gears from our personal manufacturing with speeds of 7 to 24,000 rpm. This outstanding spectrum of stainless steel motors has made us a market chief in this segment. You can discover the perfect solution for every performance requirement. Thanks to our development specialists and a high degree of vertical integration, we’re in a place to react flexibly to customer necessities, when a sure design, such as a specific flange connection or particular spindle request, just isn’t available off the shelf. 85% of our manufactured drives are customer-specific solutions based on commonplace parts.
The development and development of prime of the range air motors is likely certainly one of the major areas of experience at DEPRAG. The specialists in air motors, screwdriving know-how, feeding expertise, automation, air instruments and Green Energy turbines have round 760 staff in over 50 international locations. DEPRAG is a market-leading producer of air motors with a formidable range of excessive quality chrome steel drives and innovative generators. The owner-run family enterprise provides a diverse vary of choices within their standard program. These individual drive options could be developed and manufactured at a gorgeous price-performance ratio because of the modular development system. www.deprag.com
Ideal motors for high requirements of hygiene
Press Contact and Head of Marketing:
Carl-Schulz-Platz 1
92224 Amberg
Claudio Seidel
Tel.: 09621 371-243
Email: presse@deprag.de
Internet: www.deprag.com

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