Automated processes are standard apply within the food business. Production efficiency just isn’t the only motivation, hygiene additionally plays a key function in the food trade. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to discuss how to design a drive to fulfill these necessities and incorporate each these targets.
Question: How are excessive requirements of hygiene met by DEPRAG?
Answer: In order to make certain that the right drive is chosen to satisfy the excessive requirements for hygiene within the food industry, we usually recommend our ADVANCED LINE air vane motors. All their exterior parts are made from stainless-steel and are impervious to regular cleaning agents. เกจวัดแรงอัดกระบอกสูบ of these air motors is simple to clean. The drives are so well sealed with sturdy long-life radial shaft seals that no air can escape and equally no dirt, water or different options can penetrate the motor. The motors are even proof against water penetration from commonly used cleansing spray systems. A moist surroundings is not any concern for this motor. It may even be used underwater as in the case of many stirring applications. All our ADVANCED LINE chrome steel motors are lubricated with food grade USDA-H1 grease and could be operated oil-free. A power discount of approx. 10-20% based mostly on the technical information said within the product catalog ought to be taken into account when designing drives for oil-free operation.
Question: Does an air motor must boast other features for such applications?
Answer: Yes. In many functions, condensation can kind in air provide strains. It is subsequently advisable that measures are taken to make certain that the motor just isn’t located at the lowest point in the system and that it might be flushed out with water. Many customers take precautionary measures, not solely relating to the format of the motor in their system, but in addition concerning the utilization of water separators or dryers in front of the drive. If all this is not attainable, then we advocate a special coating for these components within the motor’s interior which are made from stainless steel. This is as a end result of there is a restrict to the utilization of chrome steel for heavy duty, high-speed inner parts. This so-called CWL coating provides insensitivity to corrosion.
Question: Do you have any examples of where your motors can be utilized in the meals industry?
Answer: Stirring dough, moving and slicing sheets of dough, rotating pork stomach skewers, mixing sausage meat or unwinding sausage skins, the food trade functions are endless. I’ll describe a couple of purposes in more detail, corresponding to the use 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 best drive for high-torque requirements in industrial agitators: Our ADVANCED LINE high-torque motors generate immense power within the smallest of spaces. The 900W high-torque motor with a nominal pace of twenty-two rpm overcomes a starting torque of 585 Nm and has a maximum diameter of 63 mm.
Another utility may be present in grinding mills and conveying systems for grain processing. In this case, the main target is on mud era and explosion prevention. All our ADVANCED LINE motors are ATEX certified to be used in doubtlessly explosive environments. You will even find 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 by way of items of meat, onion and pepper. Pressure at 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 electric motor in such applications?
Answer: There are many arguments in favour of utilizing an air motor: One of the main benefits is its high energy density. Depending on the design, an air motor has only a fifth of the mass of an electrical motor, or a third of its size. This is especially important when utilizing a handheld device however in fact also for robotic systems where the drive moves with the robotic arm.
Heat additionally leaves the air motor cold. In crucial settings, compressed air is an unproblematic source of vitality – it does not examine to the risks of electricity. The power output from the air motor over extensive torque ranges is sort of fixed. Air motors can due to this fact be optimally operated in a wide field of fluctuating loads. There is not any problem with load being applied on the air motor until standstill, no damages are incurred. This means it is less apt to stalling. After reduction of the load, it will run again instantly and any variety of successive instances. Air motor energy can be adapted simply by adjusting the working pressure. The speed is decreased easily by throttling the air volume. Throttling provide air is recommended when torque must also be significantly decreased. Exhaust air throttling must be chosen to cut back pace with none critical influence on the torque.
Question: Air motors are sometimes seen to be 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 always is dependent upon the conditions of the application. Let me use this instance to explain: A motor which reaches speeds of 450 rpm is needed for a packaging machine. 25 Nm torque is applied at reduced pace over a long time period to secure the packaging tape. Electric motors can’t be loaded over an extended time period with out working 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 different story with the air motor: Due to the favourable torque characteristics of air motors, a lower-powered drive will suffice. You could select 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 near idle velocity at 450 rpm underneath light load. The energy required for this air motor is due to this fact solely 430W. The vitality steadiness of an air motor is seen in a completely totally different mild when you suppose about that the air motor needed for this packaging machine would solely require a third of the facility of an electric motor.
Question: DEPRAG SCHULZ GMBH u. CO. can mirror on a long time of expertise in the area of air motors. They have a broad range of prime quality, globally well-liked industrial drive options. Are the ADVANCED LINE motors a particular solution for food trade 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 fulfill the needs of our prospects. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our clients benefit from long-established dependable drive solutions for the food business and medical know-how. We are capable of offer these motors in a wide power range from 20 W to 1.6 kW combined with a selection of planetary gears from our own manufacturing with speeds of seven to 24,000 rpm. This outstanding spectrum of stainless-steel motors has made us a market leader in this phase. You can discover the perfect answer for each performance requirement. Thanks to our improvement specialists and a excessive level of vertical integration, we’re able to react flexibly to customer necessities, when a sure design, corresponding to a selected flange connection or particular spindle request, is not obtainable off the shelf. 85% of our manufactured drives are customer-specific options based on commonplace parts.
The growth and building of high quality air motors is among the major areas of expertise at DEPRAG. The specialists in air motors, screwdriving know-how, feeding know-how, automation, air instruments and Green Energy turbines have round 760 employees in over 50 nations. DEPRAG is a market-leading producer of air motors with a formidable vary of top of the range chrome steel drives and progressive generators. The owner-run family enterprise presents a diverse vary of choices inside their normal program. These particular person drive solutions could be developed and manufactured at a beautiful price-performance ratio as a end result of the modular construction system. www.deprag.com
ADVANCED LINE Air Motors
Ideal motors for prime requirements of hygiene
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DEPRAG SCHULZ GMBH u. CO.
Tel.: 09621 371-243