Automated processes are commonplace follow in the meals 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 debate how to design a drive to fulfill these necessities and incorporate each these goals.
Question: How are high standards of hygiene met by DEPRAG?
Answer: In order to guarantee that the proper drive is selected to meet the high requirements for hygiene within the food trade, we normally recommend our ADVANCED LINE air vane motors. All their external elements are produced from stainless-steel and are impervious to normal cleaning brokers. The smooth floor of those air motors is straightforward to wash. The drives are so well sealed with durable long-life radial shaft seals that no air can escape and equally no filth, water or other options can penetrate the motor. The motors are even immune to water penetration from generally used cleansing spray methods. A moist environment is not any concern for this motor. It may even be used underwater as within the case of many stirring functions. All our ADVANCED LINE stainless steel motors are lubricated with food grade USDA-H1 grease and can be operated oil-free. A power discount of approx. 10-20% primarily based on the technical information stated within the product catalog must be taken into account when designing drives for oil-free operation.
Question: Does an air motor need to boast other options for such applications?
Answer: Yes. In many functions, condensation can form in air provide lines. It is subsequently advisable that measures are taken to make sure that the motor isn’t situated on the lowest point in the system and that it can be flushed out with water. Many users take precautionary measures, not solely referring to the structure of the motor in their system, but also regarding the use of water separators or dryers in entrance of the drive. If all this is not possible, then we suggest a particular coating for these parts throughout the motor’s inside which are made from chrome steel. This is because there’s a limit to the utilization of stainless-steel for heavy duty, high-speed inside components. This so-called CWL coating supplies insensitivity to corrosion.
Question: Do you have any examples of the place your motors can be utilized in the meals industry?
Answer: Stirring dough, shifting and chopping sheets of dough, rotating pork belly skewers, mixing sausage meat or unwinding sausage skins, the food business functions are endless. I’ll describe a couple of functions in more detail, corresponding to the usage 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 on the speed of 700 rpm.
We also have the best 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 twenty-two rpm overcomes a starting torque of 585 Nm and has a most diameter of sixty three mm.
Another software can be found in grinding mills and conveying methods for grain processing. In this case, the primary focus is on mud generation and explosion prevention. All our ADVANCED LINE motors are ATEX certified for use in potentially explosive environments. You will even discover 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 wood skewer by way of 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 software.
Question: What benefits 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 principle advantages is its excessive power density. Depending on the design, an air motor has solely a fifth of the mass of an electrical motor, or a 3rd of its measurement. This is especially important when using a handheld gadget however of course additionally for robotic systems the place the drive strikes with the robotic arm.
Heat also leaves the air motor cold. In crucial settings, compressed air is an unproblematic source of power – it doesn’t compare to the risks of electrical energy. The energy output from the air motor over extensive torque ranges is nearly constant. Air motors can therefore be optimally operated in a wide field of fluctuating loads. There is no problem with load being utilized 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’s going to run again immediately and any variety of successive instances. Air motor energy can be adapted just by adjusting the operating strain. The speed is lowered easily by throttling the air quantity. Throttling supply air is recommended when torque must also be significantly lowered. Exhaust air throttling must be chosen to scale back pace with none serious affect on the torque.
Question: Air motors are sometimes seen to be much less environment friendly compared to electrical motors. Can you touch upon this statement?
Answer: Air motors and electric motors can’t be compared on a one-to-one basis. The efficiency of a drive at all times is dependent upon the conditions of the appliance. Let me use this instance to elucidate: A motor which reaches speeds of 450 rpm is required for a packaging machine. 25 Nm torque is applied at decreased speed over a long time period to safe the packaging tape. Electric motors cannot be loaded over a protracted period of time without running the danger of overheating. Therefore, for this packaging machine, an electric motor would need to withstand high 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 beneficial 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 below that of the nominal torque, the air motor runs near idle speed at 450 rpm underneath light load. The power required for this air motor is due to this fact solely 430W. The energy balance of an air motor is seen in a very totally 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 electrical motor.
Question: DEPRAG SCHULZ GMBH u. CO. can replicate on many years of experience within the area of air motors. They have a variety of top quality, globally popular industrial drive options. 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 satisfy the wants of our customers. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our prospects profit from long-established reliable drive options for the meals industry and medical expertise. We are capable of provide these motors in a wide energy range from 20 W to 1.6 kW mixed with a selection of planetary gears from our personal manufacturing with speeds of 7 to 24,000 rpm. This excellent spectrum of stainless-steel motors has made us a market leader on this phase. You can find the best resolution for each performance requirement. Thanks to our growth specialists and a high degree of vertical integration, we’re able to react flexibly to buyer necessities, when a sure design, corresponding to a particular flange connection or particular spindle request, isn’t available off the shelf. 85% of our manufactured drives are customer-specific options based on standard elements.
The growth and building of top of the range air motors is considered one of the major areas of expertise at DEPRAG. The specialists in air motors, screwdriving know-how, feeding technology, automation, air instruments and Green Energy turbines have around 760 staff in over 50 nations. DEPRAG is a market-leading producer of air motors with a formidable vary of high quality stainless-steel drives and innovative generators. The owner-run household business offers a diverse vary of options inside their commonplace program. เกจวัดความดันน้ำ may be developed and manufactured at a beautiful price-performance ratio as a outcome of the modular development system.
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