Van der Graaf: Motor Consumes Less Energy

Intelligent Drum Motor technology delivers high efficiency and data feedback communication.

Conveyor users and conveyor manufacturers have accepted the drum motor as the most efficient way to drive belt conveyors. With no external motor and gearbox, the drum motor saves space, eliminates the need for scheduled maintenance and enhances operator safety.

However, the challenge has been the ease and ability to adjust belt speed as plant processing requirements change. This is achieved via a frequency inverter (VFD), which often is located in a control room some distance away from the conveyor drive electric motor.

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Motor And Drive Innovations Give Food Manufacturers More Power Options

Moderate-cost condition monitoring sensors and housings designed for optimal cleaning and sanitizing are among advancements in power systems.

Powering production in food plants is not as simple as throwing a switch. Peak-time charges, outages, surges and other factors can complicate calculations of cost and reliability and require solutions that go beyond standardizing on premium motors.

The good news is that OEMs are delivering solutions on multiple fronts, from systems approaches to power delivery and servo options to sanitary design improvements and smart motors.

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Producer completes modernization project with conveyor drives

Carmeuse successfully completes a modernization project involving conveyor drives at two Michigan operations.

As Carmeuse Lime & Stone systematically modernizes its plants in the Great Lakes region, opportunities arise to marvel one last time at the longevity provided by the century-old equipment the company is replacing.

Similar examples could be found at Carmeuse’s Calcite operation in Rogers City, Michigan, and the Port Inland operation on the Upper Peninsula in Gulliver.

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Drum motors improve electrical and mechanical efficiencies

Compared to conventional drive systems, drum motors powering a conveyor will pay for themselves.

PACK EXPO Las Vegas visitors had the opportunity to watch a demonstration of the fundamental differences between powering a belt-conveyor with Van der Graaf’s drum motor versus a conventional drive system.

“Comparison of the external motor and gearbox to that of the drum motor measures the efficiencies, and the electrical savings as a result of the comparison,” explained Rick Zander, business development manager at Van der Graaf. At the Vegas demo, the external motor was mated to a 90-degree gearbox, which was then powered to the conveyor.

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Van der Graaf Drum Motors Require No Maintenance

A drum motor is a one-component conveyor drive where the motor, gear drive and all moving parts are enclosed inside the drum. The motor and gears operate in a sealed oil bath ensuring proper lubrication and cooling. With no external motor, gear reducer, sprockets, chain or required chain guard, no external component maintenance is required.

For more than 30 years, Van der Graaf has been the leading manufacturer of drum motors for belt conveyors in material handling and processing applications. The rugged, extreme-duty drum motors are available up to 350 hp and 36-in. diameter, with a variety of lagging options to provide a durable drive with a long service-life. Drum motors have a safe and worry-free design that withstands the harshest conditions and reduced operating costs.

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Rockin’ The Rails

Georgetown Rail Equipment Co. Delivers a Lot of Aggregate with the Help of Van der Graaf Extreme-Duty Drum Motors.

When Ned Snead founded the Georgetown Rail Equipment Co. (GREX) in 1993, he was aware that technology was transforming the rail industry. That led him to invent the DumpTrain aggregate delivery system. It was a breakthrough in productivity, capable of delivering more than 2,000 tph of ballast with pinpoint accuracy using a single operator.

Ten years later GREX introduced a new innovation called Aurora. This 3-D track inspection system uses laser technology and state-of-the-art cameras to spot track and tie flaws before they cause costly problems.

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Van der Graaf Holds Drum Motor Seminars in Texas

Van der Graaf held several seminars in Texas to demonstrate to local aggregates producers how to optimize the efficiency, operating costs and safety of drives. The seminars were held in Fort Worth and New Braunfels. Rock Products was on-hand to participate in the Fort Worth session.

Matt Lepp, heavy industry drive specialist, told the group that the company’s extreme-duty drum motors “excel in applications that are dusty and dirty.”

Lepp talked about the company and its capabilities, and told attendees about the benefits of Van der Graaf drum motors. “There are many reasons why this is a superior product,” he said. “Beside the use of premium materials in the manufacture of these products, they are also very durable.”

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Van der Graaf kicks off educational event series in Texas

Van der Graaf hosted the first of its industry networking events Wednesday in Texas.

The company’s kickoff event took place in Fort Worth, Texas. Van der Graaf’s Texas Aggregate Networking Event series continues Thursday in New Braunfels, Texas.

“With Texas being the largest, single-producing state for stone, sand and gravel in the U.S., we’re going around promoting our Extreme-Duty series, which is going up to 350 hp and 36-in.-diameter drives,” says Matt Lepp, heavy industry drive specialist at Van der Graaf. “These are specifically designed for heavy industry applications.”

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Drum Motors 101

An Aggregates Plant is a Perfect Environment for a Drum Motor. But Why is the Drum Motor a Better Solution than an Exposed Drive?

A drum motor is a one-component conveyor drive where the motor, gear drive and all moving parts are enclosed inside the drum. The motor and gears operate in an oil bath ensuring proper lubrication and cooling. With no external motor, gear reducer, sprockets, chain or OSHA required chain guard, no external component maintenance is required. We asked Heavy Industry Drive Specialist Matthew Lepp at Van der Graaf to talk a little bit about the product.

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FSMA prompts changes in belt conveyors

Conventional designs pose potential hygienic hazards.

As regulations and standards associated with the Food Safety Modernization Act (FSMA) take effect, food processors are looking at their operations to identify risks. One area of concern is the belt conveyor and its external motor and gearbox drives, which are commonly used to move unprocessed and processed food around a plant. These designs pose potential hygienic hazards.

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A Superior Drive Solution

With food safety being a continuous concern for food-processing facilities, conveyor equipment manufacturers are continuously looking for better solutions for preventing bacteria build up and food contamination.

The continuous all stainless steel profile drum motor is part of the Van der Graaf SSV sanitary drum motor series. Specifically designed to power food processing conveyors; available in a wide range of diameter and horsepower ratings. The inherent benefits of these sanitary drum motors driving modular belt conveyors have had a tremendous positive impact in the food handling industry.

As FSMA takes effect, food-processing facilities already utilizing drum motors are experiencing the benefits through improved sanitation, efficiency, operator safety, as well as reduction in maintenance and energy costs.

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Thinking inside - and outside - the box

Drum motors are well suited to food and beverage conveying applications where motors should be out of sight, safe and clean.

Driving a conveyor head roller with a drum motor, which features a motor and gear box within the roller housing, is not a new concept. For around 70 years, this design has addressed space utilization issues by incorporating all external components inside the drum. However, the design has lacked the electrical and mechanical efficiency that can contribute substantially to energy savings and has been known to present some seal integrity issues.

Today, the practical drum motor designs used in food processing plants protect all vital motor/gearing components within an IP69K stainless steel enclosure. These motors can withstand up to 3,000 psi of washdown pressure, without scheduled maintenance. Outside-the-box-thinking led to this improved design, with the motor, gear reducer and bearings inside the box, making it safer and more energy efficient. Plus, since no rotating components or pinch points are outside the conveyor frame, the drum motor conveyor drive protects personnel working around the equipment.

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The Van der Graaf SSV drum motors bringing sanitary solutions to new heights

The new all 316 stainless steel drum motor with an IP 69k enclosure can withstand 3,000 psi wash down pressure.

In food processing plants, implementing sanitation processes to battle bacteria has increasingly become more challenging. Equipment manufacturers are required to design food-processing machinery that minimizes crevices where bacterial can harbor. Belt conveyors transferring food products to a number of processing stations has become ground zero for bacteria deposits. For this reason, belt conveyors are required to undergo frequent wash-down cycles. The wash-down process is usually done by pressure washing belt conveyors with warm water mixed with cleansing chemicals in order to remove, kill, or neutralize harmful bacteria.

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Sanitation improvements in conveyor system design

I have been working with foodprocessing plants for the better part of the last 30 years.

In today’s meat and poultry industry, the sanitary condition of the processing machinery is constantly under scrutiny in order to combat Listeria, E. coli and other types of bacteria that can penetrate the food chain.

In addition to food safety, worker safety is atop the list of primary concerns in plants. Improving workplace conditions by removing safety hazards is paramount to overall plant safety. In taking these steps, a plant can also advance its equipment safety and smart energy usage — two other areas of importance to operations.

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Sanitary, reliable drum motor drives success.

Poultry processor strives to meet customer demands without sacrificing the highest hygienic standards, so minimizing downtime is a must.

A custom food processor, AlaTrade Foods provides large poultry processors with a service that requires intensive amounts of labor. AlaTrade Foods takes in the front-halves of chickens and debones and disassembles products based on customer specifications—whether it is for the breast meat, wings, tenders or dark meat. AlaTrade debones approximately 1 million fronts (approximately 2 million pounds) a week.

To meet customers’ requests while maintaining sanitation standards, AlaTrade leverages process efficiencies, cutting-edge technologies and superior customer service, which results in better quality, better yield and better response times for customers.

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AlaTrade Foods uses drum motors to ‘drive’ efficiency, food safety

AlaTrade Foods is a custom food processor that services large poultry processors requiring intensive amounts of labor in processes such as deboning. AlaTrade Foods takes in front-halves of chickens and debones / disassembles them based on customer specifications; breast meat, wings, tenders and dark meat are deboned for further processing and institutional use. AlaTrade debones approximately 1 million fronts a week, which calculates to about 2 million pounds per week.

What makes AlaTrade Foods unique is its quick response time. A customer can make any change at any point during the day and AlaTrade is able to process that change on first or second shift and possibly have it done as quickly as the following day. To achieve a quick response time at the highest level of sanitation standards and customer specifications, AlaTrade leverages process efficiencies, cutting-edge technologies and superior customer service to deliver better quality, better yield and better response times for customers.

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Must see exhibits: Van der Graaf

The year 2015 marks a milestone for Van der Graaf as we celebrate 30 years of drum motor manufacturing. In 1985, we started in a 3,500 square feet facility. Today, we have over 200,000 square feet of manufacturing space in USA and Canada utilizing the latest technology and CNC equipment. Our mission remains the same today as it was in 1985, to provide reliable solutions to the material handling industry, through innovation, precision-manufacturing processes and after sale service.

At Van der Graaf, we are committed to quality and efficiency, and this is reflected in our Extreme Duty drum motors designed specifically for harsh and abrasive environmental conditions of the mining and aggregate handling industry.

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The New all stainless steel profile SSV Drum Motor for modular belt applications

In the past three years, Van der Graaf’s engineering team have been working on the development of a new drum motor concept, soon to be released, that will increase its longevity and safety, reduce operational cost and energy consumption. The Zero Pressure SSV Drum Motor is equipped with an all stainless steel prole drum to drive most common modular and at extruded belts without using plastic sprockets. The exclusive sealing design has a much higher water ingress resistance and can withstand 2,500 psi washdown pressure. Further details available at the IPPE 2015 booth #B5829.

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