Key Technology, Walla Walla, Wash., introduced a rotary polish as the new standard finish on its vibratory and horizontal motion conveyor beds. Replacing the 2B mill finish on Iso-Flo, Impulse and Horizon conveyors and processing systems, Key’s rotary finish provides a smoother stainless-steel surface that resists bacterial attachment and biofilm formation.
Available immediately on all U.S.-manufactured conveyors and to be introduced on all European-manufactured conveyors, the new rotary finish helps food processors improve equipment hygiene.
Surface roughness is measured by an Ra value (roughness average) that refers to the peaks and valleys of the metal’s surface in micro-inches or micro-meters. Compared to a 2B finish on stainless steel that often varies from 10 to 40 µin (0.254 to 1.016 µm) Ra, Key’s rotary finish provides a more constant Ra value of less than 10 µin (0.254 µm). Consistently smooth rotary polished surfaces better resist the attachment and accumulation of bacterial cells, which is desirable for all food products, including fruits, vegetables, potato specialties, meat and dairy.
Key also introduced new manufacturing specifications—Basic, Standard, Standard + and Enhanced—for its vibratory and horizontal motion conveyors and processing systems. All four specifications will feature a rotary polish on 304 stainless-steel product carrying surfaces. Key’s Enhanced conveyors also feature ground and polished welds within the product contact zone and ground and polished surfaces within the “drip, drain or draw zones” where there is a risk the product area could become contaminated by a drip or drainage or the pathogen could be drawn into the product area.
Key Technology, Inc.