Alfa Engineering Works

Other Details

This popular 'ALFA' production is the result of long experience in the manufacture of Oil Expellers and the need of oil millers in home and foreign markets. It provides an oil extraction unit of highest efficiency combined with simplicity of operation. Several important features of all the leading types of expeller have been included in the design of this expeller. This chamber box, simple mechanical cone operating mechanism and easy withdrawal of main shaft.

Soundness of design coupled with careful selection of careful selection of raw material and highest quality of workmanship make the 'ALFA AUTOMATIC EXPELLER' are as under;

Fabricated Bed: To ensure perfect alignment and stability, the machine has a heavy one piece steel bed requiring little in the way of foundation.

Vertically Hinged Chamber Box: This is a unique improvement. The difficult and laborious task of removing the chamber for relining it or for replacement of worms is entirely eliminated as the chamber need never be removed from the machine for any purpose whatsoever. This results in great saving of time and labour.

Mechanical Cone Adjusting Unit: The final pressure on the meal is positively controlled by a cone which is adjusted by the simple movement of a lever. An automatic throw off prevents the cone over-running in either direction and a graduated scale if provided to assist in setting the cone for required thickness of the oil cake.

Easy Shaft And Worms Withdrawal: Whenever the main worm shaft is to be withdrawn, this can be easily done without disturbing the driving gear in any way and pressure worms can be changed even without disturbing or withdrawing the main shaft. The thrust of the pressure worms is taken by a large Ball Thrust bearing which is not distrubed when either shaft or worms are changed. The main worm-shaft is of stepped design to assist easy removal of worms and collars.

Preliminary Compressor: The feed is under perfect control and as the cooked meal enters the expeller, it receives preliminary compression and is consolidated before entering the chamber box, resulting in immediate oil extraction. The preliminary compressing worm is driven by an automatic tension belt which stops it when the feed is excessive; starting it again when the accumulation has been taken up by the expeller.

Durability: All parts subject to heavy wear and tear such as worms, cage bars, cone point etc. are make from Case hardening Steel and properly heat treated to give long life, high capacity and low maintenance cost.

Water Cooled Shaft: For certain oil seeds such as Copra, Palm kernels etc, water cooling of the main shaft is recommended. The same can be fitted at an extra cost.

Belt And Motor Drive: ALFA Automatic expeller can be driven by belt in any number from one main shaft, each expeller can be fitted with its own electric motor mounted upon it. Where electric drive is preferred, customers should give full details of the electric supply available.

Cooking Kettle: The Expeller is fitted with a Two Stage cooking kettle compact in design which affords ample cooking capacity under all normal conditions. The kettle is fitted with a a self controlled meal inlet to prevent overflowing, it is fitted with steam damping apparatus, safety valve, steam pressure guage, condensate, drain with efficient steam traps and steam valves. The kettle requires 80-100 lbs. of process steam per hour at a pressure of 60 lbs. per square inch.