Dura Tap Motorized Sieve Shaker is designed for use with 12" sieves, this industrial-strength sieve shaker is engineered with rugged steel and alloy materials ready to withstand everyday, harsh duty cycles. Grease fittings are provided to ensure longer life for your bearings, and each unit is "burned in" by continuously running it for over 4 hours, ensuring performance right out of the box. Unit holds four, full-height 12" sieves, plus one pan and cover or eight, half-height sieves, plus one pan and