EDCO on the job

Magna-Trap Solutions at Charlotte Motor Speedway

EDCO Salesman Ed Chrisinger grinds away markings along pit road at Charlotte Motor Speedway

Charlotte Motor Speedway is home to over 40 automotive and motorsports events each year, including premier NASCAR events such as the Coca-Cola 600, the NASCAR All-Star Race and the Bank of America ROVAL™ 400.

Built in 1959, in Charlotte, North Carolina – the heart of NASCAR country where many teams are headquartered and the home of NASCAR's Hall of Fame – people often call Charlotte Motor Speedway “America’s Home for Racing.” With that standard to live up to, providing a good fan experience and maintaining a pristine track is of the utmost importance.

EDCO salesmen Ed Chrisinger and Chuck Wren visited the track in January to give a demo of how our Magna-Trap® grinders and accessories could benefit Charlotte Motor Speedway.

Before putting a new coating on a bathroom floor at the speedway, the existing paint-chip coat needed to be removed. That’s where our Magna-Trap® Turbo-Lite Grinder with Magna-Blades™ accessories came in.

They also used the Turbo-Lite Grinder to make improvements along on one of the most important stretches on the track: pit road, which can prove to be the difference between a win and a loss in races.

Our salesmen demonstrated the process of removing lines along pit road with the Turbo-Lite Grinder with different Magna-Trap® accessories, including the Dyma-PCD, 18-grit Dyma-Segs™, 30-grit Double Dyma-Dots and 70-grit Double Dyma-Dots.

In a place where speed is of the essence as refueling and tire changes are performed in a matter of seconds, trip hazards need to be eliminated. Chrisinger and Wren used the Turbo-Lite Grinder with 18-grit Dyma-Segs™ to eliminate unevenness where the concrete meets the asphalt and on control/ separation joints.

Our machines and accessories impressed Charlotte Motor Speedway so much that they decided to buy EDCO to upkeep the track and facilities in the future.

Original EDCO building in Silver Spring, Maryland, with the original EDCO logo overlaid


OUR BEGINNING (1959 & 1960S)

While working as a salesman at Rental Tools & Equipment Co. in Silver Spring, Maryland, Leo Swan repeatedly fielded the same request from customers in the growing rental industry on the East Coast: a machine to resurface large areas of concrete.

Swan and his two colleagues, John Doran Sr. and Ed Harding, made the decision to develop a dual-disc grinder that would meet this desperate rental demand, thus Equipment Development Company was born as a division of that Silver Spring rental store in 1959.

Swan often says, “EDCO was born out of necessity.” Harding designed and built the original dual-disc grinder; with that, the rental industry would never be the same.

EDCO's original Dual-Disc Grinder

They took the original dual-disc grinder to the third-ever American Rental Association (ARA) Convention in Kansas City, Missouri, where they displayed and demonstrated the new machine and its capabilities. There, Swan sold 18 dual-disc grinders without having any idea of how the new operation would fill those orders.

EDCO Trade Show Exhibits

Upon returning to Maryland, the three employees worked long hours to make headway on those orders. After six months, those 18 grinders were all built and delivered.

In 1961, as the EDCO division grew, EDCO moved to a building on Garfield Avenue in Silver Spring, Maryland.

After moving into that new building, EDCO built other machines that diversified its fleet of equipment. Throughout the 1960s, EDCO unveiled its first concrete planer (1961) – which was originally built to remove high concrete around drains on runways at the newly constructed Washington Dulles International Airport – the concrete saw (1961), power trowel (1964) and masonry saw (1969).

It didn’t take long for EDCO to explore business opportunities with international customers. Those explorations began around 1964 with Swan taking machines to exhibit at the Paris Trade Fair, where EDCO successfully established a presence in France, and at the Berlin Fair. By 1967, EDCO was selling to countries all over the world, including: Belgium, Greece, Korea, Norway and Peru, among many others.

(Top) Leo Swan welcomes Charles Bohlen, U.S. Ambassador to France at the time, to EDCO’s display booth at the Paris Trade Fair in 1964. (Bottom) Heinrich Lübke (far left), then-President of the Federal Republic of Germany, visits an EDCO booth at a trade show in Berlin during the 1960s.


Colton Gue and Duckpin Bowling

Duckpin bowling involves smaller balls and pins, which most say makes it more difficult than its 10-pin counterpart (Flickr)

Colton Gue works in the powder coating department at EDCO Fabrication, our contract fabrication division; but in his spare time, he chases strikes at bowling alleys up and down the Mid-Atlantic region.

When Gue gets set to bowl, however, it looks different than the style that most are accustomed to seeing. Instead of the prototypical bowling, he wraps his palm around a ball that’s slightly larger than a softball and rapidly unleashes it down the lane toward a group of 10 smaller pins.

Duckpin bowling, as it’s called, is a variation that’s played mostly along the northern part of the East Coast, typically from Rhode Island down to Virginia. In this subset of bowlers, Gue sits near the top of the rankings in the Duckpin Professional Bowlers Association.

Gue has been bowling since he was about three years old, following in the footsteps of his mom, who also bowled duckpins. In addition to his mom, his grandfather also bowled, and his younger brother has picked up the game, too.

“Basically, it’s in my blood to bowl,” Gue said.

Gue had the ability to bowl at such a young age with the Duckpin balls weighing significantly less than those in Ten-pin. Since picking up the Duckpin ball for the first time, Gue ascended the ranks in youth leagues and joined the professional tour in 2017.

During his first DPBA tour, Gue competed in two of the seven stops and finished with a record of 6-6 overall and an average pinfall of 152.6 in those games. After his first professional season, Gue received the association’s Rookie of the Year award.

Following up on his first-year honor, Gue secured the first tour victory of his professional career in 2018 at Southside Bowl in Hagerstown, Maryland, located about 30 miles from EDCO’s facility in Frederick, Maryland.

Now in his third year professionally, Gue ranks second – among about150 Duckpin bowlers that have participated – in the highest season average with a 147.9 pinfall per game. His average puts him less than one pin behind the No. 1 ranking as of June 2019.

The scores in Duckpin bowling typically pale in comparison to the gaudy numbers posted in Ten-pin professional bowling, which is an indication of Duckpin being a more difficult variation. While the smaller ball in Duckpin lends itself to more speed, there is less margin for error in hitting pins precisely that the large Ten-pin balls can overcome.

With less margin for error, bowlers get three attempts per frame instead of the allotted two in the standard Ten-pin version.

Further proof of the elevated difficulty in Duckpin is the fact that there has never been a certified perfect score of 300. Meanwhile, there have been 26 televised perfect games in the PBA (Ten-pin) alone, among an overwhelming number of other certified scores of 300.

Gue’s top score in a Duckpin game is 238. The highest recorded score in Duckpin history is 279, set by Pete Signore Jr. in 1992.

Signore’s 279 score is the pinnacle of Duckpin’s storied history, which is somewhat contested when it comes to its roots. There was a reference to Duckpin in The Boston Globe in 1892, but others maintain that the game’s beginning was in Baltimore around 1900.

No matter when the game truly began, its notoriety spiked around the 1960s when over 400 certified Duckpin bowling alleys were scattered throughout the Mid-Atlantic region.

Duckpin popularity gained traction largely because of the pinsetter developed by Ken Sherman from 1953-1973 that kept the game moving along quickly. But Sherman refused to sell the patent for his pinsetter to Brunswick, the Ten-pin competitor, and eventually saw his business fold.

Without the ability to replicate Sherman’s pinsetter of over 1,000 moving parts, Duckpin’s popularity has curtailed over the last four decades. Duckpin pinsetters are highly coveted when a bowling alley goes out of business, with some looking to get into the Duckpin game and others searching for replacement parts.

“It’s hard to keep Duckpin alleys alive when it costs so much, especially the machines,” Gue said.

But even with the game’s participation much lower than when his mom or grandfather played, Gue continues to thrive in the niche variation of bowling.

Colton Gue holds up a Duckpin bowling award in 2016 surrounded by his mom, brother and grandmother (Colton Gue)

Problem Solving with EDCO

The Problem:

Removing Sidewalk Trip Hazards

As defined by the Americans with Disabilities Act (ADA) of 1990, sidewalk trip hazards are any vertical change of 1/4 inch or more at any joint or crack.

Removing sidewalk trip hazards is important for the safety and accessibility standards that pedestrians assume will be available on walkways.

Generally, there are two methods to eliminating the hazards: completely replacing the peaked concrete or using a concrete scarifier/ planer to level the slabs without removal.

Completely replacing the uneven slabs involves digging out the impacted area of sidewalk until reaching bare ground. That method is effective because it allows workers to fix any issues at the surface level that caused the concrete to rise or sink.

Concrete sidewalk installation typically occurs on top of soil, which can naturally shift over time with moisture and evaporation. As those shifts take place at the surface, the concrete also begins to shift and become uneven.

But while this method eradicates the issue at the source, it’s also expensive and time-consuming to complete the task. An overhaul of a portion of the sidewalk is also inconvenient for pedestrians that won’t be able to access that part of the walkway until the concrete is cured.

For a cheaper and time-effective solution, using a concrete scarifier or planer is the optimal option. EDCO’s 8” Walk-Behind Crete-Planer®️ (model CPM-8) levels out the slabs and leaves a textured, non-slip surface.

With this option, workers aren’t accessing the surface to assess any issues at the foundation, but oftentimes servicing the ground isn’t necessary. Instead, the carbide cutters on the planer’s drum grind down the trip hazard for a long-lasting solution.

EDCO's 8" Walk-Behind Crete-Planer (CPM-8)

CPM-8 Training Video

Also ideal for: removing concrete coatings, floor cleaning and preparation, surface leveling, traffic line and marking removal, and creating non-slip surfaces

Machine Highlights

  • Planes approximately 350-500 square feet per hour at 1/8" depth per pass
  • Removes traffic lines at 800-1000 lineal feet per hour
  • Electric or gasoline power options
  • Heavy-duty 7-gauge frame built for long-lasting performance
  • Variable depth settings that provide greater control of surface removal
  • Easy drum loading to change drum set-up quickly
  • EDCO's unique engage/disengage lever raises and lowers the drum without losing depth setting
  • Vacuum ports standard for dust-free planing (water options also available)
  • Optional edger assembly for planing to get within 1-3/4 inch of any vertical surface

CPM-8 Drum

General Purpose drum with carbide cutters
  • Drum accepts both carbide and steel cutters to qualify the CPM-8 for multiple applications
  • Drum shaft easily removes to access the drum
  • Power source of the machine is strategically located above the drum to eliminate vibration and maximize surface contact
Surface cleaning, surface leveling, coating removal, and grooving made possible with EDCO's 8" Walk-Behind Crete-Planer

Safety segment

Safety in the Summer: Monitor Hydration Levels

When using construction equipment, there are a number of safety procedures to follow to protect yourself. But one commonly forgotten safety procedure has nothing to do with how you manage the machine. Rather, dehydration has everything to do with how you manage yourself.

Dehydration occurs when your body is losing more fluids than it’s taking in, and can happen at any time during the year. But with the summer heat, monitoring your hydration level is especially important.

The body primarily loses fluid through sweat, which is an inevitable part of working outside with construction equipment, especially during high-temperature days. Therefore, workers need to be prepared for the heat by drinking water before, during and after the job.

Generally, the recommended daily water intake is 8-10 glasses. But for somebody who’s subjected to high temperatures outside, that number should increase. To prevent dehydration, drink 1-3 glasses before beginning the job, and regularly drink water throughout the day.

To be properly hydrated throughout the day, it’s important that the job site has cold water at the ready.

Throughout the job, workers should monitor their hydration level. One of the easiest ways to do so is to pay attention to the color of their urine; the lighter it is, the better your hydration level is.

If rehydration is needed, the easiest method is drinking water and a sports drink to help replenish electrolytes, which help balance the amount of water in your body. Even if you are already properly hydrated, people should still continue taking in fluids. For severe dehydration, medical attention may be necessary to treat it with an IV.

Common symptoms of mild dehydration include: dry mouth, decreased urination frequency, dry skin, lightheadedness, dizziness and headaches.

Severe dehydration symptoms include: excessive thirst, lack of sweat production, dark urine, low blood pressure, rapid breathing and rapid heart rate.

If severe dehydration goes untreated, it could potentially lead to heat cramps, heat exhaustion, heat stroke and kidney failure.

Our Home:

Frederick, MD

Bell Tower at Baker Park

Carrol Creek


While the city of Frederick’s Department of Economic Development doesn’t directly create jobs, it commits time into making Frederick an attractive destination for new businesses and to making it an area where existing businesses can prosper.

“Our role is trying to make Frederick a great place for businesses to want to invest in,” Economic Development Director Richard Griffin said. “We’re creating the playing field, but it’s the private sectors that are making the investment and creating the jobs.”

Currently, over 3,500 businesses operate within Frederick’s city limits. While the target industries of Frederick include advanced technology, bioscience, professional services, and tourism and film, the city plays host to a wide variety of business types and sizes.

Small businesses and large businesses alike are afforded the opportunity to begin and thrive in Frederick with the department’s commitment to providing the necessary land, utilities and workforce. The workforce, which derives from the city and its vast surrounding areas, is a versatile population well-trained to succeed in a number of different industries that require unique skills and specializations.

“The business cycle is very fast,” Griffin said. “A business that has an idea, they’re not going to wait for five years while you build what they need. They need the space and people in the short-term, so we have to be nimble and provide to them on a real-time basis.”

A key area to the city’s business climate is the hub of commerce, culture, entertainment and government that exists in Downtown Frederick. Revitalization efforts in the area have exceeded millions of dollars as the city focuses on keeping downtown a relevant area, rather than focusing all of its efforts on the periphery and relegating the center of the city to lesser importance.

While a strong emphasis has been placed on the city’s downtown area, the department strives to balance its efforts in every area of Frederick. With each area serving different roles for the community – including health corridors, transportation, retail and ethnic options – economic development ensures all of these components come together for the sum of the parts.

“The city as a whole is 22 square miles, and we’re incredibly proud of every square inch of Frederick,” Griffin said.

Since Griffin became involved with economic development, he has seen the city of Frederick grow by well over 20,000 people and over 700 businesses. As the area continues to grow, the department is focused on attracting quality businesses that will sustain success with long-term commitments to Frederick.

“Economic development is really about the people and something they value highly, which is their job. Providing people with the dignity of work is a beautiful thing,” Griffin said. “Building a Frederick that is diverse and has jobs at all levels is what motivates us.”

100 Thomas Johnson Drive Frederick, Maryland 21702

800-638-3326 | 301-663-1600

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