Automated processes are normal apply in the meals industry. Production efficiency just isn’t the only motivation, hygiene also plays a key position within the meals trade. Special met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to discuss tips on how to design a drive to meet these necessities and incorporate both these objectives.
Question: How are high requirements of hygiene met by DEPRAG?
Answer: In order to make sure that the best drive is chosen to meet the high requirements for hygiene in the food industry, we normally suggest our ADVANCED LINE air vane motors. All their exterior parts are produced from chrome steel and are impervious to regular cleansing brokers. The smooth floor of these air motors is straightforward to scrub. The drives are so well sealed with sturdy long-life radial shaft seals that no air can escape and equally no filth, water or other options can penetrate the motor. The motors are even proof against water penetration from commonly used cleaning spray systems. A moist environment is not any concern for this motor. It may even be used underwater as in the case of many stirring purposes. All our ADVANCED LINE stainless-steel motors are lubricated with meals grade USDA-H1 grease and could be operated oil-free. A energy discount of approx. 10-20% primarily based on the technical knowledge stated within the product catalog must 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 form in air provide lines. It is due to this fact advisable that measures are taken to ensure that the motor just isn’t situated at the lowest point in the system and that it can be flushed out with water. Many users take precautionary measures, not only relating to the layout of the motor of their system, but also concerning using water separators or dryers in front of the drive. If all this is not potential, then we suggest a particular coating for those elements inside the motor’s inside which are created from chrome steel. This is as a result of there’s a limit to using chrome steel for heavy responsibility, high-speed inside elements. This so-called CWL coating supplies insensitivity to corrosion.
Question: Do you have any examples of where your motors can be used within the food industry?
Answer: Stirring dough, moving and slicing sheets of dough, rotating pork stomach skewers, mixing sausage meat or unwinding sausage skins, the meals industry purposes are countless. I’ll describe a couple of purposes in more element, similar to the usage 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 energy in the smallest of spaces. The 900W high-torque motor with a nominal pace of 22 rpm overcomes a starting torque of 585 Nm and has a most diameter of 63 mm.
Another utility may be found in grinding mills and conveying methods for grain processing. In this case, the major focus is on dust technology and explosion prevention. All our ADVANCED LINE motors are ATEX licensed to be used in potentially explosive environments. You will even discover our motors used within 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 by way of items 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 electrical motor in such applications?
Answer: There are many arguments in favour of using 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 dimension. This is particularly important when utilizing a handheld gadget but after all also for robotic techniques where the drive strikes with the robot arm.
Heat also leaves the air motor chilly. In critical settings, compressed air is an unproblematic supply of vitality – it does not examine to the hazards of electrical energy. The energy output from the air motor over broad torque ranges is sort of constant. Air motors can subsequently be optimally operated in a wide field 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 reduction of the load, it’ll run once more instantly and any number of successive instances. Air motor power may be adapted just by adjusting the working stress. The velocity is reduced easily by throttling the air quantity. Throttling supply air is recommended when torque should also be considerably decreased. Exhaust air throttling must be chosen to scale back speed without any serious affect on the torque.
Question: Air motors are sometimes seen to be much less environment friendly in comparison with electric motors. Can you touch upon this statement?
Answer: Air motors and electrical motors can’t be in contrast on a one-to-one foundation. The effectivity of a drive always is dependent upon the situations of the applying. Let me use this instance to elucidate: A motor which reaches speeds of 450 rpm is required for a packaging machine. 25 Nm torque is utilized at decreased velocity over an extended time frame to secure the packaging tape. Electric motors cannot be loaded over a protracted time period without operating the chance of overheating. Therefore, for this packaging machine, an electrical motor would need to face up to high hundreds and in consequence would must be 1170W (25 Nm x 450 rpm divided by 9550). It is a very totally different story with the air motor: Due to the favourable torque characteristics 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 under 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 solely 430W. The energy balance of an air motor is seen in a very totally different gentle when you think about that the air motor wanted for this packaging machine would solely require a 3rd of the ability of an electrical motor.
Question: DEPRAG SCHULZ GMBH u. CO. can mirror on a long time of expertise within the field of air motors. They have a extensive range of top of the range, globally in style industrial drive solutions. 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 meet the needs of our prospects. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our customers profit from long-established reliable drive options for the meals industry and medical technology. We are capable of supply these motors in a wide energy vary from 20 W to 1.6 kW mixed with a wide selection of planetary gears from our personal production with speeds of seven to 24,000 rpm. This excellent spectrum of stainless steel motors has made us a market leader in this section. You can discover the best resolution for every performance requirement. Thanks to our improvement specialists and a high level of vertical integration, we are able to react flexibly to buyer necessities, when a certain design, corresponding to a selected flange connection or special spindle request, is not available off the shelf. 85% of our manufactured drives are customer-specific solutions primarily based on standard parts.
The improvement and development of prime of the range air motors is certainly one of the major areas of experience at DEPRAG. The specialists in air motors, screwdriving technology, feeding know-how, automation, air instruments and Green Energy turbines have round 760 employees in over 50 international locations. DEPRAG is a market-leading manufacturer of air motors with a powerful vary of high of the range chrome steel drives and revolutionary generators. The owner-run household enterprise presents a diverse range of options within their standard program. These particular person drive solutions could 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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