Automated processes are commonplace practice in the meals trade. Production efficiency 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 discuss tips on how to design a drive to fulfill these necessities and incorporate both these objectives.
Question: How are excessive requirements of hygiene met by DEPRAG?
Answer: In order to guarantee that the proper drive is chosen to meet the excessive requirements for hygiene within the food industry, we often recommend our ADVANCED LINE air vane motors. All their exterior elements are made from stainless-steel and are impervious to normal cleaning brokers. The clean surface of these air motors is straightforward to clean. The drives are so properly sealed with durable long-life radial shaft seals that no air can escape and equally no filth, water or other solutions can penetrate the motor. The motors are even resistant to water penetration from commonly used cleansing spray systems. A moist setting is no concern for this motor. It can even be used underwater as in the case of many stirring functions. All our ADVANCED LINE stainless-steel motors are lubricated with food 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 ought to be taken under consideration when designing drives for oil-free operation.
Question: Does an air motor must boast other options for such applications?
Answer: Yes. In many functions, condensation can kind in air provide strains. It is due to this fact advisable that measures are taken to ensure that the motor is not located at the lowest point within the system and that it can be flushed out with water. Many users take precautionary measures, not only relating to the format of the motor in their system, but also regarding the utilization of water separators or dryers in entrance of the drive. If all this is not attainable, then we advocate a particular coating for those parts throughout the motor’s inside which are made from chrome steel. This is as a end result of there is a limit to the usage of chrome steel for heavy duty, high-speed internal parts. This so-called CWL coating provides insensitivity to corrosion.
Question: Do you have any examples of where your motors can be utilized within the food industry?
Answer: Stirring dough, moving and cutting sheets of dough, rotating pork stomach skewers, mixing sausage meat or unwinding sausage skins, the food industry purposes are countless. I’ll describe a few functions in additional element, such as 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 speed 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 spaces. The 900W high-torque motor with a nominal pace of twenty-two rpm overcomes a starting torque of 585 Nm and has a most diameter of sixty three mm.
Another utility could be found in grinding mills and conveying techniques for grain processing. In this case, the main focus 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 wooden skewer through 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 electrical motor in such applications?
Answer: There are many arguments in favour of utilizing an air motor: One of the primary advantages is its high energy density. Depending on the design, an air motor has solely a fifth of the mass of an electrical motor, or a third of its dimension. This is especially vital when utilizing a handheld device but in fact additionally for robotic techniques the place the drive moves with the robot arm.
Heat additionally leaves the air motor chilly. In critical settings, compressed air is an unproblematic source of vitality – it doesn’t examine to the hazards of electrical energy. The energy output from the air motor over wide torque ranges is type of constant. Air motors can due to this fact be optimally operated in a wide area of fluctuating hundreds. 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’s going to run again instantly and any number of successive occasions. Air motor power may be tailored simply by adjusting the working strain. The pace is reduced easily by throttling the air volume. Throttling supply air is beneficial when torque must also be significantly lowered. Exhaust air throttling ought to be chosen to minimize back pace without any serious affect on the torque.
Question: Air motors are often seen to be less environment friendly in comparison with electrical motors. Can you touch upon this statement?
Answer: Air motors and electrical motors can’t be compared on a one-to-one basis. The efficiency of a drive always is dependent upon the situations of the applying. 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 reduced speed over a long time frame to secure the packaging tape. Electric motors can’t be loaded over an extended period of time with out operating the risk of overheating. Therefore, for ไดอะแฟรม packaging machine, an electrical motor would want to resist excessive 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 characteristics of air motors, a lower-powered drive will suffice. You could choose 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 underneath light load. The power required for this air motor is due to this fact only 430W. The vitality stability of an air motor is seen in a totally different mild when you consider that the air motor wanted for this packaging machine would only require a third of the facility of an electrical motor.
Question: DEPRAG SCHULZ GMBH u. CO. can replicate on a long time of experience within the subject of air motors. They have a wide range of prime of the range, globally popular industrial drive solutions. Are the ADVANCED LINE motors a particular solution for meals industry applications?
Answer: It is true that our engineers have continued to optimise our air motors over the a long time and our commonplace program has been adjusted to satisfy the wants of our prospects. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our customers profit from long-established dependable drive options for the meals industry and medical expertise. We are in a place to offer these motors in a wide energy range from 20 W to 1.6 kW mixed with a selection of planetary gears from our personal manufacturing with speeds of 7 to 24,000 rpm. This excellent spectrum of stainless-steel motors has made us a market leader on this segment. You can discover the ideal solution for every performance requirement. Thanks to our improvement specialists and a excessive level of vertical integration, we are in a position to react flexibly to buyer necessities, when a sure design, such as a specific flange connection or special spindle request, isn’t out there off the shelf. 85% of our manufactured drives are customer-specific solutions based mostly on standard elements.
The improvement and development of high quality air motors is one of the major areas of experience at DEPRAG. The specialists in air motors, screwdriving expertise, feeding expertise, automation, air tools and Green Energy generators have round 760 employees in over 50 international locations. DEPRAG is a market-leading manufacturer of air motors with a powerful range of excessive quality chrome steel drives and revolutionary turbines. The owner-run family enterprise offers a diverse range of choices within their standard program. These particular person drive options could be developed and manufactured at an attractive price-performance ratio because of the modular development 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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