Automated processes are normal apply within the food industry. Production efficiency isn’t the one motivation, hygiene additionally performs a key position in the meals trade. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to debate tips on how to design a drive to fulfill these necessities and incorporate both these objectives.
Question: How are excessive standards of hygiene met by DEPRAG?
Answer: In order to ensure that the proper drive is chosen to meet the high requirements for hygiene in the food trade, we usually recommend our ADVANCED LINE air vane motors. All their external parts are created from chrome steel and are impervious to normal cleansing agents. The clean surface of those air motors is simple to scrub. The drives are so nicely sealed with sturdy long-life radial shaft seals that no air can escape and equally no dust, water or other solutions can penetrate the motor. The motors are even resistant to water penetration from generally used cleaning spray systems. A wet surroundings is not any concern for this motor. It can even be used underwater as within the case of many stirring functions. ร้านซ่อมเครื่องวัดความดันโลหิต -steel motors are lubricated with food grade USDA-H1 grease and may be operated oil-free. A power discount of approx. 10-20% primarily based on the technical data stated within the product catalog should 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 purposes, condensation can form in air provide strains. It is therefore advisable that measures are taken to guarantee that the motor isn’t positioned on the lowest point in the system and that it can be flushed out with water. Many customers take precautionary measures, not only referring to the structure of the motor in their system, but in addition regarding the usage of water separators or dryers in entrance of the drive. If all this isn’t attainable, then we suggest a particular coating for these elements within the motor’s interior which are created from stainless steel. This is as a outcome of there’s a limit to the usage of stainless steel for heavy obligation, high-speed inner components. This so-called CWL coating offers insensitivity to corrosion.
Question: Do you’ve any examples of the place your motors can be used in the food industry?
Answer: Stirring dough, shifting and slicing sheets of dough, rotating pork belly skewers, mixing sausage meat or unwinding sausage skins, the meals trade functions are infinite. I’ll describe a number of purposes in additional detail, such as 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 at the speed of seven hundred rpm.
We also have the perfect drive for high-torque requirements in industrial agitators: Our ADVANCED LINE high-torque motors generate immense power in the smallest of areas. The 900W high-torque motor with a nominal speed of 22 rpm overcomes a starting torque of 585 Nm and has a most diameter of 63 mm.
Another software could be found in grinding mills and conveying systems for grain processing. In this case, the main target is on mud technology and explosion prevention. All our ADVANCED LINE motors are ATEX licensed for use in probably explosive environments. You will even discover 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 wooden skewer by way of 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 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 primary benefits is its excessive energy density. Depending on the design, an air motor has only a fifth of the mass of an electrical motor, or a 3rd of its size. This is particularly significant when using a handheld device but of course additionally for robotic systems where the drive strikes with the robot arm.
Heat also leaves the air motor cold. In crucial settings, compressed air is an unproblematic source of energy – it does not compare to the risks of electrical energy. The energy output from the air motor over broad torque ranges is nearly fixed. Air motors can due to this fact be optimally operated in a large subject of fluctuating hundreds. There is no drawback with load being utilized on the air motor till standstill, no damages are incurred. This means it is much less apt to stalling. After discount of the load, it’ll run once more instantly and any number of successive occasions. Air motor power could be adapted just by adjusting the operating stress. The velocity is reduced easily by throttling the air volume. Throttling provide air is really helpful when torque also wants to be considerably lowered. Exhaust air throttling must be chosen to minimize back velocity with none critical influence on the torque.
Question: Air motors are sometimes seen to be less efficient in comparability with electrical motors. Can you comment on this statement?
Answer: Air motors and electric motors cannot be in contrast on a one-to-one foundation. The efficiency of a drive all the time is dependent upon the circumstances of the appliance. 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 velocity over a long time period to secure the packaging tape. Electric motors can’t be loaded over a protracted time period with out running the risk of overheating. Therefore, for this packaging machine, an electrical motor would want to withstand excessive loads and in consequence would have to be 1170W (25 Nm x 450 rpm divided by 9550). It is a totally completely 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 below that of the nominal torque, the air motor runs near idle pace at 450 rpm beneath mild load. The power required for this air motor is due to this fact only 430W. The energy stability of an air motor is seen in a very completely different gentle when you think about that the air motor wanted for this packaging machine would only require a 3rd of the facility of an electric motor.
Question: DEPRAG SCHULZ GMBH u. CO. can reflect on decades of expertise in the subject of air motors. They have a extensive range of prime of the range, globally in style industrial drive options. Are the ADVANCED LINE motors a special answer for meals trade 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 satisfy the needs of our prospects. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our customers benefit from long-established dependable drive solutions for the meals business and medical know-how. We are able to supply these motors in a wide power range from 20 W to 1.6 kW mixed with a selection of planetary gears from our personal manufacturing with speeds of seven to 24,000 rpm. This excellent spectrum of chrome steel motors has made us a market chief in this phase. You can find the perfect solution for each efficiency requirement. Thanks to our growth specialists and a excessive level of vertical integration, we’re able to react flexibly to customer necessities, when a certain design, such as a selected flange connection or particular spindle request, just isn’t obtainable off the shelf. 85% of our manufactured drives are customer-specific options based on standard parts.
The growth and building of prime of the range air motors is doubtless certainly one of the main areas of experience at DEPRAG. The specialists in air motors, screwdriving expertise, feeding technology, automation, air tools and Green Energy generators have round 760 workers in over 50 international locations. DEPRAG is a market-leading producer of air motors with a formidable vary of prime quality stainless steel drives and progressive turbines. The owner-run household business offers a various range of choices within their commonplace program. These particular person drive options may be developed and manufactured at a beautiful price-performance ratio on account of the modular construction 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