Automated processes are normal practice within the meals trade. Production efficiency just isn’t the one motivation, hygiene additionally performs a key position within the meals industry. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to debate tips on how to design a drive to meet these necessities and incorporate both these objectives.
Question: How are excessive standards of hygiene met by DEPRAG?
Answer: In order to make certain that the right drive is selected to satisfy the excessive requirements for hygiene within the meals trade, we usually recommend our ADVANCED LINE air vane motors. All their external elements are created from stainless steel and are impervious to regular cleaning brokers. The easy floor of these air motors is straightforward to wash. The drives are so properly sealed with sturdy long-life radial shaft seals that no air can escape and equally no filth, water or different solutions can penetrate the motor. The motors are even immune to water penetration from commonly used cleansing spray methods. A wet setting isn’t any concern for this motor. It can even be used underwater as within the case of many stirring applications. All our ADVANCED LINE chrome steel motors are lubricated with food grade USDA-H1 grease and may be operated oil-free. A energy discount of approx. 10-20% based mostly on the technical information acknowledged in the product catalog ought to 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 traces. It is subsequently advisable that measures are taken to ensure that the motor is not situated 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 structure of the motor in their system, but also regarding the usage of water separators or dryers in front of the drive. If all this isn’t attainable, then we suggest a particular coating for those elements within the motor’s inside which are made from stainless-steel. This is as a end result of there is a restrict to the usage of stainless steel for heavy duty, high-speed inside elements. This so-called CWL coating offers insensitivity to corrosion.
Trade secret : Do you’ve any examples of where your motors can be used in the food industry?
Answer: Stirring dough, transferring and chopping sheets of dough, rotating pork stomach skewers, mixing sausage meat or unwinding sausage skins, the meals industry purposes are infinite. I’ll describe a couple of applications in more detail, corresponding to using 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 necessities in industrial agitators: Our ADVANCED LINE high-torque motors generate immense power in the smallest of spaces. The 900W high-torque motor with a nominal velocity of twenty-two rpm overcomes a starting torque of 585 Nm and has a most diameter of 63 mm.
Another application can be present 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 certified for use in potentially explosive environments. You will even find our motors used within 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 wooden skewer via pieces 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 software.
Question: 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 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 particularly important when utilizing a handheld device however in fact also for robotic techniques the place the drive moves with the robot arm.
Heat also leaves the air motor cold. In crucial settings, compressed air is an unproblematic source of power – it doesn’t examine to the hazards of electrical energy. The power output from the air motor over broad torque ranges is almost fixed. Air motors can due to this fact be optimally operated in a large area of fluctuating hundreds. There is no 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’ll run again instantly and any number of successive times. Air motor energy can be tailored simply by adjusting the operating strain. The speed is lowered smoothly by throttling the air volume. Throttling provide air is recommended when torque also needs to be considerably decreased. Exhaust air throttling must be chosen to scale back speed with none critical influence on the torque.
Question: Air motors are sometimes seen to be much less environment friendly compared to electrical motors. Can you comment on this statement?
Answer: Air motors and electric motors cannot be in contrast on a one-to-one basis. The efficiency of a drive at all times is decided by the circumstances of the application. Let me use this instance to elucidate: A motor which reaches speeds of 450 rpm is needed for a packaging machine. 25 Nm torque is applied at lowered velocity over a long period of time to safe the packaging tape. Electric motors cannot be loaded over an extended time frame without working the chance of overheating. Therefore, for this packaging machine, an electrical motor would wish to face up to excessive masses and in consequence would must be 1170W (25 Nm x 450 rpm divided by 9550). It is a totally totally different story with the air motor: Due to the beneficial 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 speed of 275 rpm. Since the working torque is beneath that of the nominal torque, the air motor runs near idle speed at 450 rpm beneath gentle load. The power required for this air motor is due to this fact only 430W. The energy steadiness of an air motor is seen in a very different mild when you suppose about that the air motor wanted for this packaging machine would solely require a 3rd of the ability of an electric motor.
Question: DEPRAG SCHULZ GMBH u. CO. can mirror on decades of experience within the field of air motors. They have a variety of high quality, globally in style industrial drive solutions. Are the ADVANCED LINE motors a particular solution 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 satisfy the wants of our prospects. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our customers profit from long-established reliable drive solutions 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 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 leader on this section. You can find the ideal answer for each performance requirement. Thanks to our growth specialists and a excessive degree of vertical integration, we are capable of react flexibly to customer necessities, when a sure design, corresponding to a specific flange connection or particular spindle request, isn’t out there off the shelf. 85% of our manufactured drives are customer-specific solutions primarily based on commonplace parts.
The growth and development of excessive quality air motors is amongst the main areas of expertise at DEPRAG. The specialists in air motors, screwdriving know-how, feeding know-how, automation, air instruments and Green Energy turbines have around 760 employees in over 50 nations. DEPRAG is a market-leading manufacturer of air motors with a formidable range of prime of the range stainless steel drives and revolutionary generators. The owner-run household business presents a various range of options within their normal program. These individual drive solutions may 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 top 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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