Automated processes are normal practice in the food trade. Production effectivity just isn’t the only motivation, hygiene also plays a key role within the food industry. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to discuss the way to design a drive to satisfy these necessities and incorporate both these goals.
Question: How are excessive standards of hygiene met by DEPRAG?

Answer: In order to ensure that the best drive is selected to satisfy the excessive necessities for hygiene within the meals industry, we often suggest our ADVANCED LINE air vane motors. All their external components are made from chrome steel and are impervious to regular cleansing agents. The clean surface of those air motors is straightforward to scrub. The drives are so well 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 immune to water penetration from generally used cleansing spray techniques. A moist surroundings is no concern for this motor. It may even be used underwater as in the case of many stirring applications. All our ADVANCED LINE stainless-steel motors are lubricated with meals grade USDA-H1 grease and could be operated oil-free. A energy reduction of approx. 10-20% primarily based on the technical information stated in the product catalog must be taken into consideration when designing drives for oil-free operation.
Question: Does an air motor need to boast different options for such applications?

Answer: Yes. In many functions, condensation can form in air provide traces. It is therefore advisable that measures are taken to guarantee that the motor is not located at the lowest level within the system and that it could be flushed out with water. Many customers take precautionary measures, not only referring to the layout of the motor in their system, but additionally regarding the usage of water separators or dryers in entrance of the drive. If all this is not potential, then we recommend a special coating for those components throughout the motor’s interior which are created from chrome steel. This is as a outcome of there is a restrict to the usage of chrome steel for heavy duty, high-speed inner components. This so-called CWL coating provides insensitivity to corrosion.
Question: Do you’ve any examples of the place your motors can be used within 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 purposes are endless. I’ll describe a few functions in additional element, similar 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 at the pace of 700 rpm.
We even have the perfect drive for high-torque requirements in industrial agitators: Our ADVANCED LINE high-torque motors generate immense power within 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 maximum diameter of 63 mm.
Another software can be found in grinding mills and conveying systems for grain processing. In this case, the main target is on dust 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 within the processing of meat, for instance 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 through items 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 advantages does an air motor have over an electric motor in such applications?

Answer: There are many arguments in favour of using an air motor: One of the principle advantages is its high energy density. Depending on the design, an air motor has solely a fifth of the mass of an electrical motor, or a third of its measurement. This is especially vital when utilizing a handheld device but in fact additionally for robotic methods the place the drive strikes with the robot arm.
Heat also leaves the air motor chilly. In important settings, compressed air is an unproblematic supply of vitality – it does not evaluate to the dangers of electrical energy. The power output from the air motor over broad torque ranges is type of fixed. Air motors can subsequently be optimally operated in a wide field of fluctuating hundreds. There is not any 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 variety of successive occasions. Air motor energy may be adapted just by adjusting the working pressure. The velocity is decreased smoothly by throttling the air volume. Throttling provide digital pressure gauge is recommended when torque must also be significantly decreased. Exhaust air throttling must be chosen to minimize back velocity with none critical influence on the torque.
Question: Air motors are often seen to be much less environment friendly compared to electrical motors. Can you touch upon this statement?

Answer: Air motors and electrical motors can’t be in contrast on a one-to-one basis. The efficiency of a drive always is dependent upon the circumstances of the appliance. Let me use this example to elucidate: A motor which reaches speeds of 450 rpm is required for a packaging machine. 25 Nm torque is utilized at lowered velocity over a long time frame to safe the packaging tape. Electric motors can’t be loaded over a long time period with out operating the danger of overheating. Therefore, for this packaging machine, an electric motor would need to resist high hundreds and consequently 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 could select an air motor with a nominal torque of 15 Nm and nominal speed of 275 rpm. Since the working torque is beneath that of the nominal torque, the air motor runs near idle speed at 450 rpm beneath light load. The energy required for this air motor is therefore solely 430W. The energy steadiness of an air motor is seen in a completely completely different light when you think about that the air motor wanted for this packaging machine would only require a 3rd of the ability of an electric motor.
Question: DEPRAG SCHULZ GMBH u. CO. can replicate on many years of expertise within the area of air motors. They have a variety of prime quality, globally well-liked industrial drive options. Are the ADVANCED LINE motors a special answer for meals industry 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 fulfill the needs of our customers. The ADVANCED LINE motors belong to our DEPRAG catalog program. Our clients benefit from long-established reliable drive options for the meals industry and medical know-how. We are capable of supply these motors in a large power vary from 20 W to 1.6 kW combined with quite a lot of planetary gears from our own production with speeds of seven to 24,000 rpm. This excellent spectrum of chrome steel motors has made us a market chief on this section. You can find the perfect answer for every efficiency requirement. Thanks to our development specialists and a excessive stage of vertical integration, we’re able to react flexibly to buyer necessities, when a sure design, similar to a particular flange connection or special spindle request, just isn’t obtainable off the shelf. 85% of our manufactured drives are customer-specific options based on standard components.
The growth and building of top of the range air motors is amongst the primary areas of experience at DEPRAG. The specialists in air motors, screwdriving know-how, feeding expertise, automation, air instruments and Green Energy generators have round 760 workers in over 50 nations. DEPRAG is a market-leading manufacturer of air motors with a formidable vary of high quality chrome steel drives and progressive turbines. The owner-run family business presents a diverse range of options within their normal program. These particular person drive options could be developed and manufactured at a gorgeous price-performance ratio because of the modular development system.


Ideal motors for high standards of hygiene

Press Contact and Head of Marketing:
Carl-Schulz-Platz 1

92224 Amberg


Claudio Seidel

Tel.: 09621 371-243