Ensure top-notch reliability with the best drive for the job

Automated processes are normal practice within the food trade. Production efficiency is not the one motivation, hygiene additionally performs a key role in 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 necessities and incorporate each these objectives.
Question: How are high requirements of hygiene met by DEPRAG?
Answer: In order to guarantee that the proper drive is chosen to satisfy the excessive necessities for hygiene in the food business, we usually advocate our ADVANCED LINE air vane motors. All their exterior elements are created from stainless-steel and are impervious to normal cleansing brokers. The smooth floor of these air motors is straightforward to wash. Quick 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 resistant to water penetration from generally used cleaning spray systems. A moist surroundings is no concern for this motor. It can even be used underwater as in the case of many stirring functions. All our ADVANCED LINE stainless steel motors are lubricated with food grade USDA-H1 grease and may be operated oil-free. A power discount of approx. 10-20% based on the technical information stated in the product catalog ought to be taken under consideration when designing drives for oil-free operation.
Question: Does an air motor must boast other options for such applications?
Answer: Yes. In many applications, condensation can type in air supply lines. It is therefore advisable that measures are taken to make sure that the motor just isn’t positioned on the lowest level in the system and that it can be flushed out with water. Many users take precautionary measures, not solely regarding the format 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 recommend a particular coating for those components throughout the motor’s inside which are made from stainless steel. This is as a outcome of there is a limit to the utilization of stainless steel for heavy obligation, high-speed inner components. This so-called CWL coating supplies insensitivity to corrosion.
Question: Do you have any examples of where your motors can be used within the food industry?
Answer: Stirring dough, transferring and cutting sheets of dough, rotating pork stomach skewers, mixing sausage meat or unwinding sausage skins, the meals business applications are countless. I’ll describe a few applications in more detail, similar to using 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 speed of seven hundred 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 speed of twenty-two rpm overcomes a beginning torque of 585 Nm and has a most diameter of 63 mm.
Another utility can be found in grinding mills and conveying techniques for grain processing. In this case, the primary target is on dust era and explosion prevention. All our ADVANCED LINE motors are ATEX licensed 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 wooden skewer by way of items 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 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 main benefits is its high power density. Depending on the design, an air motor has only a fifth of the mass of an electrical motor, or a third of its measurement. This is particularly significant when utilizing a handheld device however of course also for robotic methods where the drive strikes with the robotic arm.
Heat additionally leaves the air motor cold. In critical settings, compressed air is an unproblematic source of energy – it doesn’t compare to the dangers of electricity. The energy output from the air motor over broad torque ranges is almost fixed. Air motors can subsequently be optimally operated in a wide subject of fluctuating hundreds. There is not any downside with load being applied on the air motor until standstill, no damages are incurred. This means it is much less apt to stalling. After discount of the load, it will run again immediately and any number of successive times. Air motor power can be tailored simply by adjusting the working pressure. The velocity is reduced easily by throttling the air quantity. Throttling provide air is really helpful when torque must also be considerably lowered. Exhaust air throttling must be chosen to reduce velocity with none severe influence on the torque.
Question: Air motors are sometimes seen to be much less efficient in comparability with electrical motors. Can you touch upon this statement?
Answer: Air motors and electrical motors can’t be compared on a one-to-one basis. The efficiency of a drive all the time depends on the situations of the applying. Let me use this example to explain: A motor which reaches speeds of 450 rpm is required for a packaging machine. 25 Nm torque is applied at lowered speed over an extended time frame to secure the packaging tape. Electric motors cannot be loaded over a long time period without working the danger of overheating. Therefore, for this packaging machine, an electric motor would need to withstand excessive hundreds and as a result would need to be 1170W (25 Nm x 450 rpm divided by 9550). It is a very totally different story with the air motor: Due to the beneficial torque traits of air motors, a lower-powered drive will suffice. You might 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 under mild load. The energy required for this air motor is therefore solely 430W. The vitality stability of an air motor is seen in a totally different light when you consider that the air motor needed for this packaging machine would only require a 3rd of the facility of an electric motor.
Question: DEPRAG SCHULZ GMBH u. CO. can mirror on a long time of expertise within the subject of air motors. They have a variety of prime of the range, globally popular industrial drive options. Are the ADVANCED LINE motors a special resolution for meals business applications?
Answer: It is true that our engineers have continued to optimise our air motors over the many years and our normal program has been adjusted to fulfill the wants of our prospects. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our prospects profit from long-established reliable drive solutions for the food business and medical know-how. We are in a position to supply these motors in a large energy vary from 20 W to 1.6 kW combined with a wide selection 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 in this phase. You can discover the best answer for every performance requirement. Thanks to our development specialists and a high degree of vertical integration, we’re capable of react flexibly to buyer requirements, when a certain design, corresponding to a selected flange connection or special spindle request, isn’t obtainable off the shelf. 85% of our manufactured drives are customer-specific solutions based on commonplace components.
The growth and construction of excessive quality air motors is one of the primary areas of experience at DEPRAG. The specialists in air motors, screwdriving technology, feeding expertise, automation, air tools and Green Energy generators have around 760 workers in over 50 international locations. DEPRAG is a market-leading producer of air motors with a powerful vary of excessive quality stainless-steel drives and revolutionary turbines. The owner-run family enterprise provides a various vary of options inside their standard program. These individual drive solutions may be developed and manufactured at a gorgeous price-performance ratio on account of the modular building system. www.deprag.com
Ideal motors for high 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