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

Automated processes are standard practice within the food business. Production efficiency just isn’t the one motivation, hygiene also plays a key role in the meals industry. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to debate the means to design a drive to meet these requirements and incorporate both these goals.
Question: How are excessive requirements of hygiene met by DEPRAG?
Answer: In order to guarantee that the right drive is chosen to fulfill the high requirements for hygiene within the food business, we normally suggest our ADVANCED LINE air vane motors. All their exterior parts are made from chrome steel and are impervious to regular cleaning brokers. Value of those air motors is simple to scrub. The drives are so well sealed with durable long-life radial shaft seals that no air can escape and equally no dust, water or different options can penetrate the motor. The motors are even proof against water penetration from commonly used cleaning spray techniques. A wet surroundings is not any 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 power reduction of approx. 10-20% based on the technical data acknowledged in the product catalog ought to be taken into account when designing drives for oil-free operation.
Question: Does an air motor have to boast other features for such applications?
Answer: Yes. In many functions, condensation can kind in air supply lines. It is due to this fact advisable that measures are taken to guarantee that the motor is not positioned on the lowest level in the system and that it could be flushed out with water. Many customers take precautionary measures, not only relating to the structure of the motor of their system, but in addition regarding the utilization of water separators or dryers in entrance of the drive. If all this is not attainable, then we recommend a particular coating for these elements inside the motor’s interior that are made from stainless steel. This is as a outcome of there is a limit to the usage of stainless-steel for heavy duty, high-speed internal components. This so-called CWL coating offers insensitivity to corrosion.
Question: Do you have any examples of the place 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 trade applications are endless. I’ll describe a number of functions in additional detail, such as 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 velocity of 700 rpm.
We even have the ideal drive for high-torque requirements in industrial agitators: Our ADVANCED LINE high-torque motors generate immense energy within 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 software can be found in grinding mills and conveying systems for grain processing. In this case, the focus is on mud technology and explosion prevention. All our ADVANCED LINE motors are ATEX licensed for use in doubtlessly explosive environments. You will even discover 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 wood skewer via pieces 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 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 primary advantages is its excessive energy density. Depending on the design, an air motor has solely a fifth of the mass of an electric motor, or a third of its measurement. This is especially important when using a handheld system however in fact also for robotic techniques where the drive strikes with the robotic arm.
Heat also leaves the air motor chilly. In important settings, compressed air is an unproblematic supply of vitality – it does not examine to the dangers of electricity. The energy output from the air motor over wide torque ranges is nearly constant. Air motors can due to this fact be optimally operated in a wide field of fluctuating loads. There isn’t any downside with load being utilized 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 variety of successive instances. Air motor energy may be adapted simply by adjusting the operating strain. The velocity is reduced easily by throttling the air volume. Throttling supply air is recommended when torque should also be considerably reduced. Exhaust air throttling ought to be chosen to reduce pace without any serious affect on the torque.
Question: Air motors are sometimes seen to be less environment friendly compared to electric motors. Can you touch upon this statement?
Answer: Air motors and electric motors cannot be in contrast on a one-to-one foundation. The efficiency of a drive at all times is decided by the situations of the application. Let me use this example to clarify: A motor which reaches speeds of 450 rpm is required for a packaging machine. 25 Nm torque is applied at reduced pace over a long period of time to secure the packaging tape. Electric motors can’t be loaded over a protracted time period without working the chance of overheating. Therefore, for this packaging machine, an electric motor would want to withstand excessive masses and consequently would must be 1170W (25 Nm x 450 rpm divided by 9550). It is a completely totally different story with the air motor: Due to the beneficial torque characteristics of air motors, a lower-powered drive will suffice. You might choose an air motor with a nominal torque of 15 Nm and nominal speed of 275 rpm. Since the working torque is below that of the nominal torque, the air motor runs close to idle pace at 450 rpm beneath light load. The energy required for this air motor is therefore solely 430W. The energy steadiness of an air motor is seen in a completely different light when you suppose about that the air motor wanted for this packaging machine would only require a third of the ability of an electric motor.
Question: DEPRAG SCHULZ GMBH u. CO. can reflect on a long time of expertise in the subject of air motors. They have a variety of prime of the range, globally in style industrial drive solutions. Are the ADVANCED LINE motors a particular solution for meals business 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 meet the needs of our prospects. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our clients benefit from long-established reliable drive options for the meals industry and medical technology. We are capable of supply these motors in a large 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 outstanding spectrum of chrome steel motors has made us a market leader in this segment. You can find the ideal answer for every efficiency requirement. Thanks to our development specialists and a excessive degree of vertical integration, we’re in a position to react flexibly to customer necessities, when a certain design, similar to a specific flange connection or special spindle request, isn’t available off the shelf. 85% of our manufactured drives are customer-specific options primarily based on normal components.
The development and construction of excessive quality air motors is among the main areas of expertise at DEPRAG. The specialists in air motors, screwdriving expertise, feeding know-how, automation, air instruments and Green Energy generators have around 760 staff in over 50 international locations. DEPRAG is a market-leading manufacturer of air motors with an impressive range of high quality stainless-steel drives and progressive turbines. The owner-run family business offers a various vary of choices inside their normal program. These individual drive options may be developed and manufactured at a gorgeous price-performance ratio because of the modular building system. www.deprag.com
Ideal motors for top 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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