Speed Product Development

Application Update: Tap the expertise of suppliers for help in selecting and specifying dc motors and other complex components can lead to significant time and cost savings.

12/08/2011


The rapid pace of technological change and the need to develop and manufacture new products more cost effectively are having a tremendous impact on today’s lean industrial workforce, beginning with those who are practitioners of design engineering.

Bosch i-Business Group offers more than 500 part numbers for 12-24 V fractional horsepower Bosch dc electric motors, including sealed and nonsealed dc motors, with or without gear units, as well as dc motors equipped with blowers, water pressure pumps, orWhether we’re talking medical devices, processing equipment, marine applications, or some other type of consumer or industrial product or system, the story is similar. Corporate leaders globally are making greater demands on product development teams. They are pressing design engineers to think more creatively and challenging them to search hard to find the means to shorten the product development cycle and also reduce overall product development costs.

Such directives suggest the need to significantly reduce the time that design engineers devote to researching and selecting vendor-supplied components, including dc electric motors, pumps, valves, switches, relays, and sensors. Still, even as design engineers seek to address these cost-cutting issues, they must remain true to achieving the primary goal—development of high-quality products and systems that work to satisfy the needs of customers by offering “real-world” solutions through innovative advances in product design. In addressing the long list of dc motors and various other components that will be called upon to give substance to computer-aided designs, product developers may likely find that contrary to the familiar refrain heard from the classic Rolling Stones’ song, time is “not” on their side. This is especially true when there are fewer people on the product development team.

The Bosch i-Business website, www.bosch-ibusiness.com, offers basic design facts to help product design engineers. Regarding use of dc motors with Hall sensors, a parameter explanation says that when using silicon Hall elements, the circuit for signal proIn any event, it can take a considerable amount of time for design engineers to first determine an optimal set of specifications for a particular needed component, and then identify a readily available part that fits or most closely matches the combination of specifications. While design engineers are thoroughly versed in the possible applications of such components as fractional horsepower dc electric motors and related items such as switches, relays, and sensors, they cannot possibly be expected to be fully acquainted with every design feature and key specification of every individual component that is destined to become part of their finished product or system.

One motor company offers more than 500 part numbers for 12-24 V fractional horsepower dc electric motors, including sealed and nonsealed dc motors with or without gear units, as well as dc motors equipped with blowers, water pressure pumps, or water-circulation pumps. And that’s just one company.

The Bosch i-Business website, www.bosch-ibusiness.com, has a detailed parts catalog available through Bosch’s proprietary online search tool. Courtesy: BoschWhat about the specifications that must be considered when choosing dc motors for diverse consumer, medical, and industrial applications? They typically include nominal volts, nominal watts, nominal power, nominal current, maximum current, nominal speed, nominal torque, breakaway torque, reduction, direction of rotation, type of duty, degree of protection, and weight.

Matching dc motor specifications to the product application adds complexity. Other aspects of the dc motor and integration into the overall product design must be addressed, such as shaft size, shaft speed, mountings, torque capacity, electrical connectors, and operating voltage. Ultimately, the motor may also need to be supplied with some precise modifications for it to sufficiently meet the product design requirements.

Choosing dc electric motors and other components for a new or redesigned application can be a complex, time-consuming puzzle. Design engineers often explore the websites of parts suppliers for answers on types of dc motors, switches, relays, and other related parts that can be accessed through enhanced online search tools, providing other important information that can be helpful to a parts research. Explanations are available on parameters, characteristic curves, operating modes, and other aspects of dc motors, including applications such as medical and rehabilitation applications, building systems, drive units, and industrial applications. In some instances, browsing websites of parts suppliers is enough to identify project components. Other times, the fastest, most efficient, most cost-effective method of choosing complex components may be to take advantage of the specialized engineering and consulting services major parts suppliers provide.

The best time to turn to suppliers for assistance with parts selection is toward the beginning of the product development project. By knowing and understanding well in advance how components are to be used, where they may be installed within the finished product or system, and the results they are expected to deliver as part of the total design package, the parts supplier’s engineering consultants can offer timely advice to make informed purchasing decisions.

Supplier advice can lead to a modified product design for better-than-planned-for results. For example, some years ago a manufacturer’s consulting-engineering team worked closely with a Brazilian company that produces linear actuators used for raising and lowering dental chairs. Previously the manufacturer used ac motors to power the actuators.

Using supplier recommendations, the company switched to the 24-V dc electric motor for an actuator redesign project. The motor delivers 45 Nm of torque at 45 rpm. Advantages for the dental chair application include less noise compared to models powered by ac motors or hydraulic systems. That’s a good selling point for the actuator manufacturer and the dental chair makers, and a major user-friendly benefit for the dental practices using the redesigned automated dental chairs.

The dc motors require less maintenance than ac motor- or hydraulic-powered units, since they use no oil or other aggressive chemicals that regularly need to be changed. Less maintenance reduces costs for the end user.

By taking advantage of the motor manufacturer’s engineering and consulting expertise early in the redesign project, the actuator manufacturer’s product development team remained true to design goals, while using the motor manufacturer to help with parts selection and lower R&D costs.

Design engineering teams don’t have time to solve complex component selection puzzles on their own. Lean design engineering departments and tight R&D budgets benefit from a knowledgeable, strategic-minded, cost-cutting guide to clarify ambiguities of component selection. That cost-cutting guide is the parts supplier.

Bosch technologies for motion control

Bosch i-Business Group offers more than 500 part numbers for 12-24 V fractional horsepower Bosch dc electric motors. They include sealed and nonsealed dc motors, with or without gear units, as well as dc motors equipped with blowers, water pressure pumps, or water-circulation pumps. The Bosch i-Business website, www.bosch-ibusiness.com, has a detailed catalog of Bosch dc motors, switches, relays, and other related parts that can be easily accessed through its proprietary online search tool. It also provides other important information that can be helpful to parts research. For example, there are explanations regarding the parameters, characteristic curves, operating modes, and other aspects of the dc motors described in the Bosch catalog. The website shows some applications for which Bosch dc motors are suitable, including medical and rehabilitation applications, building systems, drive units, and industrial applications. Based on Bosch recommendations, the company switched to the 24-V Bosch "CEP" dc electric motor for an actuator redesign project. Bosch Model F006.WM0.310 delivers 45 Nm of torque at 45 rpm. 

Kenn Langosch is sales manager, Bosch i-Business Group, Robert Bosch LLC, Broadview, Ill. Courtesy: BoschIn 2011, Bosch is celebrating its 125th anniversary and the 150th anniversary of the birth of its founder, Robert Bosch.

- Kenn Langosch is sales manager, Bosch i-Business Group, Robert Bosch LLC, Broadview, Ill.

www.bosch-ibusiness.com 

www.boschusa.com 



No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2013 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Leaders Under 40 program features outstanding young people who are making a difference in manufacturing. View the 2013 Leaders here.
The new control room: It's got all the bells and whistles - and alarms, too; Remote maintenance; Specifying VFDs
2014 forecast issue: To serve and to manufacture - Veterans will bring skill and discipline to the plant floor if we can find a way to get them there.
2013 Top Plant: Lincoln Electric Company, Cleveland, Ohio
Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Plant Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.

Bring focus to PLC programming: 5 things to avoid in putting your system together; Managing the DCS upgrade; PLM upgrade: a step-by-step approach
Balancing the bagging triangle; PID tuning improves process efficiency; Standardizing control room HMIs
Commissioning electrical systems in mission critical facilities; Anticipating the Smart Grid; Mitigating arc flash hazards in medium-voltage switchgear; Comparing generator sizing software

Annual Salary Survey

Participate in the 2013 Salary Survey

In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.

Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.

2012 Salary Survey Analysis

2012 Salary Survey Results

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.