A properly sized and tuned drum dryer system suited to your input volume is the key to planning an efficient system. Baker-Rullman's specialized engineers are dedicated to accomplishing these goals with each and every installation.
All three cylinders in the Baker-Rullman triple-pass dryer system are full-length giving the customer the maximum effective length and residence time in the smallest possible package.
The drum dryer drive arrangement uses engineering class bushed roller chain and sprockets, specifically designed for this type of drive application.
Our trunnion rollers are made from Class 50 cast iron with a minimum roller face hardness of 270 BHN. The inboard tapered roller bearings, which have a 'B-1-' life of 15 years, allow the roller to rotate around our stationary roller shaft supported by our hold-down pillow blocks. Baker-Rullman has proven this to be more reliable than the smaller diameter roller with an integral cast shaft system that is offered by our competition.
Baker-Rullman drum tires are designed and manufactured significantly different from those used by other vendors. Each tire is hot forged from a single billet of AISI 1025 steel, then finish machined. There is no weld seam on it, and the steel grain structure is oriented for greater wear resistance and strength. It is forged into a "T" cross-section instead of the usual rectangular bar cross-section other vendors generally supply using rolled and welded bar stock.
Baker-Rullman rotary drum dryers use less fuel per ton of product than many other drum dryers and do so in significantly less space. The triple-pass design provides approximately three feet of horizontal material travel for every foot of drum length. Precise electronic controls eliminate heat surges and fuel waste.
Baker-Rullman triple-pass rotary drum dryer to achieve efficiencies better than 1,500 BTUs per pound of water evaporated. This is the result of better heat utilization created by longer residence times, robust temperature control, and superior drum insulation.
Our triple pass dryer design protects your product from under or over drying. Heavier, wetter product moves slower than fine particles, giving uniform drying to all particles. That's why our rotary dryers have long been known for protecting the protein value of food by-products and the integrity of all types of material.
V.O.C. (Volatile Organic Compounds) emissions can cause pollution problems and restrict your production rates. Heat utilization in a Baker-Rullman system is superior to that of the other rotary drum dryers by virtue of the triple-pass rotary dryer design, eliminating unnecessary V.O.C. emissions.