Automated processes are standard practice within the food business. Production efficiency isn’t the only motivation, hygiene additionally plays a key role within the meals trade. We met with DEPRAG SCHULZ GMBH u. CO. Product Manager Dagmar Dübbelde to debate how to design a drive to fulfill these requirements and incorporate each these targets.
Question: How are high standards of hygiene met by DEPRAG?
Answer: In order to ensure that the right drive is selected to fulfill the high requirements for hygiene within the meals business, we usually suggest our ADVANCED LINE air vane motors. All their external components are produced from chrome steel and are impervious to regular cleaning agents. The smooth surface of those air motors is simple to scrub. The drives are so properly sealed with durable 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 commonly used cleansing spray systems. A wet environment is not any concern for this motor. It may even be used underwater as within the case of many stirring purposes. All our ADVANCED LINE chrome steel motors are lubricated with food grade USDA-H1 grease and may be operated oil-free. A energy reduction of approx. 10-20% based on the technical data 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 different features for such applications?
Answer: Yes. In many functions, condensation can form in air provide traces. It is therefore advisable that measures are taken to ensure that the motor is not situated at the lowest point in the system and that it could be flushed out with water. Many customers take precautionary measures, not only relating to the format of the motor of their system, but in addition regarding the utilization of water separators or dryers in entrance of the drive. If all this is not possible, then we advocate a particular coating for these components within the motor’s interior which are created from chrome steel. This is as a outcome of there’s a restrict to the use of stainless-steel for heavy duty, high-speed inner parts. This so-called CWL coating supplies insensitivity to corrosion.
Question: Do you may have any examples of where your motors can be utilized in the food industry?
Answer: Stirring dough, transferring and slicing sheets of dough, rotating pork stomach skewers, mixing sausage meat or unwinding sausage skins, the meals business applications are infinite. I’ll describe a number of functions in more element, similar to using 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 seven-hundred rpm.
We even have the ideal 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 twenty-two rpm overcomes a starting torque of 585 Nm and has a maximum diameter of sixty three mm.
Another application could be present in grinding mills and conveying techniques for grain processing. In this case, the focus is on mud generation and explosion prevention. All our ADVANCED LINE motors are ATEX licensed to be used in potentially 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 wooden skewer via items of meat, onion and pepper. Pressure on the skewer is 38 kg and subsequently a high-power air motor with compact design is ideally suited to this utility.
Question: What benefits does an air motor have over an electrical motor in such applications?
Answer: There are many arguments in favour of using an air motor: One of the main advantages is its excessive power density. Depending on the design, an air motor has only a fifth of the mass of an electric motor, or a 3rd of its size. This is particularly important when using a handheld gadget however of course additionally for robotic methods where the drive strikes with the robot arm.
Heat additionally leaves the air motor chilly. In crucial settings, compressed air is an unproblematic source of energy – it doesn’t examine to the hazards of electricity. The power output from the air motor over broad torque ranges is nearly constant. Air motors can subsequently be optimally operated in a wide subject of fluctuating hundreds. There isn’t any problem with load being applied on the air motor till standstill, no damages are incurred. This means it is 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 may be adapted just by adjusting the operating strain. The speed is reduced smoothly by throttling the air quantity. Throttling supply air is beneficial when torque also wants to be significantly lowered. Exhaust air throttling should be chosen to reduce back speed with none serious influence on the torque.
Question: Air motors are often seen to be less environment friendly in comparability with electrical motors. Can you touch upon this statement?
Answer: Air motors and electric motors cannot be compared on a one-to-one basis. The effectivity of a drive at all times is determined by the circumstances of the appliance. Let me use this instance to elucidate: A motor which reaches speeds of 450 rpm is needed for a packaging machine. 25 Nm torque is utilized at lowered speed over a long period of time to safe the packaging tape. Electric motors cannot be loaded over a long period of time with out operating the danger of overheating. Therefore, for this packaging machine, an electric motor would want to resist excessive loads and in consequence would need to be 1170W (25 Nm x 450 rpm divided by 9550). It is a very 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 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 under gentle load. The power required for this air motor is subsequently only 430W. The energy balance of an air motor is seen in a totally totally different light when you consider that the air motor wanted for this packaging machine would solely require a third of the ability of an electric motor.
Question: DEPRAG SCHULZ GMBH u. เกจวัดแรงดัน10bar . can mirror on decades of experience within the area of air motors. They have a variety of high quality, globally well-liked industrial drive options. Are the ADVANCED LINE motors a special solution for food trade applications?
Answer: It is true that our engineers have continued to optimise our air motors over the many years and our commonplace program has been adjusted to meet the wants of our clients. 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 expertise. We are in a place to provide these motors in a large energy range from 20 W to 1.6 kW combined with a selection of planetary gears from our own production with speeds of seven to 24,000 rpm. This outstanding spectrum of chrome steel motors has made us a market leader on this section. You can discover the ideal solution for every performance requirement. Thanks to our growth specialists and a high stage of vertical integration, we’re in a place to react flexibly to buyer requirements, when a certain design, such as a particular flange connection or particular spindle request, just isn’t out there off the shelf. 85% of our manufactured drives are customer-specific options based on commonplace elements.
The growth and building of top of the range air motors is considered one of the main areas of experience at DEPRAG. The specialists in air motors, screwdriving expertise, feeding expertise, automation, air tools and Green Energy turbines have round 760 workers in over 50 nations. DEPRAG is a market-leading manufacturer of air motors with a formidable vary of prime quality stainless-steel drives and progressive generators. The owner-run household enterprise presents a diverse range of options within their standard program. These individual drive solutions may be developed and manufactured at a gorgeous price-performance ratio on account of the modular construction system.
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