Used 48" (4') dia. x 40' long Rotary Calciner with Hastelloy C-276 cylinder 0.25" thick. Mfr: Allis-Chalmers, 1987, S/N: 87-6312. Cylinder, trunions, thrust rolls and bearings replaced 1994. Natural Gas direct fired, 1200 deg F max temp. Manuals and documents on file.