Control of wood dust from automated routers.
Hampl-V; Johnston-OE; Topmiller-JL; Murdock-DJ Jr.
Appl Occup Environ Hyg 1990 Jul; 5(7):419-427
The purpose of this study was to develop a system to solve various dust control problems related to the use of automated routers in woodworking applications. A computer controlled jet stripper system was devised to reduce the wood dust emissions from automated, multidirectional routers. The system consists of a set of 24 jets, combined into eight operational units which are uniformly located around the entire inside periphery of the brush holder above the worktable. Pressurized air is supplied through the jets. The system is useful particularly when routing is performed under the upper surface of the workpiece. A reduction in dust emissions of 90% was realized using the jet stripper combined with a brush and local exhaust installed at the router head. With the jet stripper operating, the wood dust concentrations outside the worktable were reduced to or below 5mg/m3. Greater control is achieved when the jet stripper is controlled by the router computer as the operations of both will be synchronized. The new control system did not interfere with the activity of the worker and it required no special maintenance. The cost was low and the installation was easy.
NIOSH-Author; Control-technology; Dust-control; Machine-tools; Woodworking-industry; Woodworkers; Air-quality-control; Woodworking-equipment; Equipment-operators
Vladimir Hampl, National Institute for Occupational Safety and Health, 4676 Columbia Parkway, Cincinnati, Ohio 45226
Applied Occupational and Environmental Hygiene