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

Automated processes are commonplace apply in the meals industry. Production efficiency is not the one motivation, hygiene also plays a key position in the food industry. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to discuss the way to design a drive to fulfill these requirements and incorporate each these objectives.
ไดอะแฟรม : How are excessive standards of hygiene met by DEPRAG?

Answer: In order to ensure that the proper drive is selected to fulfill the excessive requirements for hygiene within the meals industry, we often suggest our ADVANCED LINE air vane motors. All their exterior elements are made from stainless steel and are impervious to normal cleansing brokers. The smooth floor of these air motors is easy to wash. The drives are so well sealed with durable long-life radial shaft seals that no air can escape and equally no dust, water or other options can penetrate the motor. The motors are even proof against water penetration from generally used cleaning spray systems. A moist environment isn’t any concern for this motor. It may even be used underwater as in the case of many stirring applications. All our ADVANCED LINE stainless-steel motors are lubricated with food grade USDA-H1 grease and may be operated oil-free. A energy discount of approx. 10-20% based on the technical knowledge stated in the product catalog must be taken into consideration when designing drives for oil-free operation.
Question: Does an air motor need to boast other features for such applications?

Answer: Yes. In many applications, condensation can form in air supply strains. It is subsequently advisable that measures are taken to make sure that the motor just isn’t located on the lowest level in the system and that it can be flushed out with water. Many users take precautionary measures, not solely relating to the layout of the motor of their system, but in addition regarding using water separators or dryers in entrance of the drive. If all this is not potential, then we recommend a special coating for these components inside the motor’s inside that are created from chrome steel. This is as a result of there’s a limit to using stainless steel for heavy duty, high-speed internal elements. This so-called CWL coating provides insensitivity to corrosion.
Question: Do you have any examples of the place your motors can be utilized in 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 business applications are endless. I’ll describe a couple of functions in more 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 at the velocity of seven-hundred rpm.
We even have the ideal drive for high-torque requirements in industrial agitators: Our ADVANCED LINE high-torque motors generate immense energy in the smallest of areas. The 900W high-torque motor with a nominal pace of 22 rpm overcomes a beginning torque of 585 Nm and has a most diameter of 63 mm.
Another software could be present in grinding mills and conveying methods for grain processing. In this case, the primary focus is on dust generation and explosion prevention. All our ADVANCED LINE motors are ATEX licensed for use in doubtlessly explosive environments. You will even find our motors used in the processing of meat, for example 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 through pieces of meat, onion and pepper. Pressure at the skewer is 38 kg and therefore a high-power air motor with compact design is ideally suited to this utility.
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 principle benefits is its high energy density. Depending on the design, an air motor has only a fifth of the mass of an electric motor, or a 3rd of its dimension. This is especially significant when using a handheld device however in fact additionally for robotic techniques the place the drive moves with the robot arm.
Heat additionally leaves the air motor cold. In crucial settings, compressed air is an unproblematic source of power – it does not compare to the dangers of electricity. The energy output from the air motor over extensive torque ranges is nearly constant. Air motors can due to this fact be optimally operated in a large subject of fluctuating masses. There is not any drawback with load being applied on the air motor until standstill, no damages are incurred. This means it is much less apt to stalling. After reduction of the load, it will run once more immediately and any variety of successive instances. Air motor power can be adapted simply by adjusting the working pressure. The pace is reduced smoothly by throttling the air volume. Throttling supply air is recommended when torque must also be considerably reduced. Exhaust air throttling should be chosen to scale back speed without any severe affect on the torque.
Question: Air motors are sometimes seen to be less environment friendly in comparison with electric motors. Can you touch upon this statement?

Answer: Air motors and electric motors cannot be in contrast on a one-to-one basis. The efficiency of a drive all the time is determined by the circumstances of the application. 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 decreased pace over an extended time period to secure the packaging tape. Electric motors cannot be loaded over a long period of time with out working the chance of overheating. Therefore, for this packaging machine, an electrical motor would need to resist high hundreds and as a result would have to be 1170W (25 Nm x 450 rpm divided by 9550). It is a completely completely different story with the air motor: Due to the favourable torque traits 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 velocity at 450 rpm beneath gentle load. The energy required for this air motor is subsequently solely 430W. The vitality stability of an air motor is seen in a very different gentle when you suppose about that the air motor needed for this packaging machine would only require a third of the facility of an electrical motor.
Question: DEPRAG SCHULZ GMBH u. CO. can reflect on many years of experience within the field of air motors. They have a variety of top quality, globally popular industrial drive solutions. Are the ADVANCED LINE motors a special resolution for food business 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 prospects. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our customers profit from long-established reliable drive options for the meals trade and medical technology. We are in a position to offer these motors in a wide power range from 20 W to 1.6 kW combined with a wide range of planetary gears from our own 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 best answer for each efficiency requirement. Thanks to our improvement specialists and a high degree of vertical integration, we are capable of react flexibly to customer necessities, when a certain design, such as a selected flange connection or special spindle request, isn’t available off the shelf. 85% of our manufactured drives are customer-specific solutions based on standard components.
The growth and development of top quality air motors is likely considered one of the main areas of expertise at DEPRAG. The specialists in air motors, screwdriving technology, feeding know-how, automation, air tools and Green Energy turbines have round 760 staff in over 50 countries. DEPRAG is a market-leading manufacturer of air motors with a formidable range of high quality stainless steel drives and revolutionary turbines. The owner-run household enterprise provides a diverse range of options within their normal program. These individual drive solutions could be developed and manufactured at an attractive price-performance ratio on account of the modular development system. www.deprag.com


Ideal motors for high standards 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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