Automated processes are standard practice in the food trade. Production efficiency is not the one motivation, hygiene also performs a key function within the meals business. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to discuss how to design a drive to meet these requirements and incorporate each these targets.
Question: How are high standards of hygiene met by DEPRAG?
Answer: In order to guarantee that the best drive is chosen to fulfill the excessive necessities for hygiene in the food business, we often suggest our ADVANCED LINE air vane motors. All their external elements are produced from stainless steel and are impervious to regular cleansing brokers. The easy surface of these air motors is easy to clean. The drives are so nicely sealed with sturdy long-life radial shaft seals that no air can escape and equally no dust, water or different solutions can penetrate the motor. The motors are even immune to water penetration from generally used cleansing spray systems. A moist setting is no 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 discount of approx. 10-20% based on the technical knowledge said in the product catalog should be taken into consideration when designing drives for oil-free operation.
Question: Does an air motor must boast different features for such applications?
Answer: Yes. In many purposes, condensation can type in air supply lines. It is therefore advisable that measures are taken to ensure that the motor isn’t located on the lowest point in the system and that it can be flushed out with water. Many customers take precautionary measures, not solely regarding the format of the motor in their system, but additionally regarding using water separators or dryers in entrance of the drive. If all this isn’t attainable, then we advocate a particular coating for these elements within the motor’s interior which are produced from stainless-steel. This is as a end result of there is a restrict to the usage of chrome steel for heavy obligation, high-speed internal components. This so-called CWL coating provides insensitivity to corrosion.
Question: Do you have any examples of where your motors can be used within the meals industry?
Answer: Stirring dough, shifting and chopping sheets of dough, rotating pork stomach skewers, mixing sausage meat or unwinding sausage skins, the food trade applications are countless. I’ll describe a few purposes in more element, similar to 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 on the pace of 700 rpm.
We also have the ideal drive for high-torque requirements in industrial agitators: Our ADVANCED LINE high-torque motors generate immense energy within the smallest of areas. The 900W high-torque motor with a nominal pace of 22 rpm overcomes a starting torque of 585 Nm and has a maximum diameter of 63 mm.
Another utility could be present in grinding mills and conveying methods for grain processing. In this case, the major target is on mud era and explosion prevention. All our ADVANCED LINE motors are ATEX certified for use in doubtlessly explosive environments. You will even find our motors used in 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 through items of meat, onion and pepper. Pressure at 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 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 size. This is particularly vital when utilizing a handheld system however in fact additionally for robotic techniques the place the drive moves with the robot arm.
Heat additionally leaves the air motor cold. In important settings, compressed air is an unproblematic supply of energy – it doesn’t examine to the hazards of electricity. The power output from the air motor over wide torque ranges is almost fixed. Air motors can therefore be optimally operated in a wide area of fluctuating loads. There is no drawback with load being applied on the air motor till standstill, no damages are incurred. This means it’s less apt to stalling. After discount of the load, it’s going to run again instantly and any number of successive instances. Air motor energy could be tailored simply by adjusting the operating stress. The speed is decreased smoothly by throttling the air quantity. Throttling pressure gauge 0 10 bar ราคา is recommended when torque also needs to be significantly reduced. Exhaust air throttling ought to be chosen to cut back pace without any severe affect on the torque.
Question: Air motors are sometimes seen to be much less environment friendly in comparability with electric motors. Can you comment on this statement?
Answer: Air motors and electric motors can’t be compared on a one-to-one basis. The efficiency of a drive all the time is dependent upon the conditions of the application. Let me use this example to explain: A motor which reaches speeds of 450 rpm is needed for a packaging machine. 25 Nm torque is utilized at lowered speed over an extended time frame to safe the packaging tape. Electric motors cannot be loaded over a long time frame without working the risk of overheating. Therefore, for this packaging machine, an electrical motor would want to withstand excessive loads and in consequence would need to be 1170W (25 Nm x 450 rpm divided by 9550). It is a completely different story with the air motor: Due to the favourable torque characteristics of air motors, a lower-powered drive will suffice. You may choose an air motor with a nominal torque of 15 Nm and nominal velocity of 275 rpm. Since the working torque is under that of the nominal torque, the air motor runs close to idle speed at 450 rpm beneath gentle load. The energy required for this air motor is subsequently only 430W. The vitality stability of an air motor is seen in a totally different gentle when you consider that the air motor wanted for this packaging machine would solely require a third of the ability of an electrical motor.
Question: DEPRAG SCHULZ GMBH u. CO. can mirror on decades of experience within the area of air motors. They have a variety of high of the range, globally in style industrial drive solutions. Are the ADVANCED LINE motors a particular solution for meals trade applications?
Answer: It is true that our engineers have continued to optimise our air motors over the many years and our standard program has been adjusted to meet the needs of our customers. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our clients profit from long-established reliable drive options for the food business and medical expertise. We are able to provide these motors in a large energy range from 20 W to 1.6 kW combined with quite so much 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 section. You can find the perfect resolution for every efficiency requirement. Thanks to our improvement specialists and a excessive degree of vertical integration, we’re capable of react flexibly to buyer requirements, when a sure design, corresponding to a particular flange connection or special spindle request, just isn’t obtainable off the shelf. 85% of our manufactured drives are customer-specific solutions based on commonplace parts.
The development and construction of top of the range air motors is probably one of the main areas of experience at DEPRAG. The specialists in air motors, screwdriving expertise, feeding technology, automation, air tools and Green Energy turbines have around 760 employees in over 50 nations. DEPRAG is a market-leading manufacturer of air motors with an impressive range of high of the range chrome steel drives and progressive generators. The owner-run household business presents a various vary of options inside their standard program. These individual drive solutions may be developed and manufactured at a gorgeous price-performance ratio as a end result of the modular development system. www.deprag.com
ADVANCED LINE Air Motors
Ideal motors for prime standards 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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