The building is located near Pine and Garnett.
There were no injuries to the workers or firefighters.
Smoke and flame was seen coming from the building's paint shop area.
NewsOn6.com
TULSA, OK -- Quick action by Tulsa firefighters knocked down a fire at a factory building near Pine and Garnett.
At 9:47 a.m. firefighters arrived to find fire and smoke coming from a smoke stack on the roof of the Ramsey Winch building.
Investigators say the fire started in the paint shop area and spread to the connecting duct work. It took about 20 minutes for firefighters to knock down the fire.
Tulsa Fire says the fire was accidentally started by a couple of workers using cutting torches to remove the paint system.
There were no injuries to the workers or firefighters.
Ramsey Winch officials say the dollar loss was minimal.