Page 52 - MetalForming October 2013

Fuel-Tank Manufacturer
Clears the Haze
Dust, fumes and sparks from high-definition plasma-arc cutting and arc welding, including a weld booth dedicated to welding stainless steel, are no match for new continuous-filtration
and airflow equipment.
As one of the nation’s leading manufacturers and suppliers of OEM and aftermarket diesel-fuel tanks, Cleveland Tank & Supply oper- ates a busy shop floor to keep up with customer demands and its “immediate shipment” promise. The company occupies a 33,000-sq. ft. facility near Cleveland, OH. In any given week, its workforce of less than 50 employees produces tanks to fit various makes of vehicles, oil fields, specialty equipment and trailers, as well as tanks designed for specific custom applications.
The manufacturing process for stan- dard, in-stock products, as well as for tanks custom designed to customer specifications, involves plasma cutting and welding. Cleveland Tank’s shop
floor—which encompasses nearly 17,500 sq. ft. of space—features a high- definition plasma cutting station, some 10 gas-metal- and gas-tungsten-arc- welding booths for steel and aluminum products (roughly 250 to 300 tanks per week), and a welding booth dedicated to production of stainless-steel tanks.
This heavy, constant production boils down to one thing—a lot of weld- ing. And with all of that welding comes the potential for weld fume in the var- ious production areas.
“Everything we build gets welded,” notes operations manager David Wil- son. “Depending on the application and material used, we can easily weld 10 tanks per day per booth. We gener- ate fume all day long.”
In any given week, the workforce at Cleveland Tank & Supply produces tanks to fit various makes of vehicles, oil fields, specialty equipment and trailers, as well as tanks designed for specific custom applications.
Clearing the Haze
The company took a three-fold approach to reducing haze and improv- ing overall air quality on the shop floor. First, it installed a free-standing fume- extraction system that reduces the overall concentration of welding fume on the floor. Both Wilson and Rich Fer- ris, the company’s vice president and general manager, note that the com- pany initially looked at fume-extraction systems that have arms extending to individual welding booths. However, they decided that the facility would be best served with a system that provid- ed comprehensive protection for the entire shop floor. They started investi- gating options by talking with some 10 different vendors.
When they heard about The Circu- lator fume-exhaust system from Lin- coln Electric, they were intrigued, Fer- ris says. This standalone system uses continuous filtration and airflow to extract and filter welding fume released during the most common welding and fabrication processes. It supplements natural, draft ventilation or forced ven- tilation through the roof and wall fans,
50 MetalForming/October 2013
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