Explosion-proof trucks

Forklifts don’t just overturn, they explode. When forklifts work in hazardous conditions and their ignition sources or hot surfaces are exposed to flammable gases, vapors, liquids or combustible powders, fires or explosions can occur.

Two kinds of explosion-proof trucks are available. EE trucks have all the electrical equipment enclosed and are sometimes called “spark enclosed,” according to Ed Campbell, sales manager for Landoll Corp. These trucks are typically used when flammable liquids and gases are in containers.

EX trucks meet the same criteria as EE, but also “have all electrical fittings and equipment sealed so that they can operate in areas where the atmosphere contains flammable gases, dust or fibers,” Campbell says. Some EX models also have bronze clad forks and bronze bumper strips around the perimeter of the frame to prevent sparking.

OSHA requires EX trucks for “atmospheres in which combustible dust is or may be in suspension continuously, intermittently or periodically under normal operating conditions, in quantities sufficient to produce explosive or ignitable mixtures.”

Industries involved in manufacturing, handling, processing or storing explosive or hazardous materials, including perfumes, cosmetics, paints, varnishes, printing ink and chemicals use EX forklifts. It represents two percent of the total forklift market.