concreate cement machine price Rotary Kiln. Rotary kiln is also known as lime rotary kiln. Product specification: Φ2.5×40m-Φ6.0×95m. Production capacity: 168-10000t/h. Rotation speed: 0.1–5 r/min. Applied materials: roasting cement clinker in the industries of metallurgy, refractory matter and chemical plant.