Got Space? Fine Tune your cold brew / coffee products! 75 pound batch roaster – known as the 1/2 bagger. Originally patented in 1976, the 1/4 Bag Fluid Air Bed Roaster from Sivetz was the first air roaster to challenge the dominance of the drum roasters. Michael Sivetz was the inventor and genius behind the design, and his background as a chemical engineer combined with unparalleled knowledge of the coffee bean blazed a new trail for the coffee roasting world. Features: – natural gas fired – manual top feed – manual slide gate discharge – New York blower, 7.5 HP pressure blower, S/N D4727-100, – Cyclonic Destoner/after burner, – 42″ diameter x 24″ cooling table, rotary sweep arm, 1/2 HP blower, – assembled power control panel