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ROLL MILLS

producer of soap plants

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— ROLL MILLS—

Roll mills for bar soap finishing line

The process of soap refining does not end with the simple passage through the refining plodders, but involves further processing, including rolling. The specific function of roll mills is to alter the structure of the soap to increase its quality. Soap is forced through rolls that are not only running in oposite directions but also at different speed. This subjects the soap to intense mechanical stres that intensely minces and mixes resulting in fine and uniform structure. Furthermore, roll mill is the only machine that can do this without oincreasing the temperature of the product! This is a limiting factor of plodder refining that makes a Roll Mill inreplacable when producing high quality product. The process, as the name suggests, involves the reduction of soap into very fine flakes using a rolling system.
Soaptec offers two models of rolling machines: one with hydraulic gap regulation and one with mechanical gap regulation. Whichever type of machine the customer chooses – thanks to the creation of in-house and customised projects – our company guarantees total compatibility of the rolling machines also with finishing lines produced by other companies.
In both cases, the operator interface is made up of a simple push button panel that allows all the machine functions to be controlled more easily.
The external surface of the machine’s rolls is composed of a layer of welded martensitic stainless steel, hardened to 50 HRC and ground to 0.4 roughness.

Hydraulic roll mill —

Due to their powerful crushing and friction of the soap, hydraulic roll mills perform more intensive processing than other similar types of machinery available on the market. Their use causes changes in the crystalline structure of the soap and this alteration generates a more foamy, soluble, and solid product.

Soaptec M-Series hydraulic roll mills are available in three different sizes; the choice of one model over another depends on the production capacity of each plant.
This type of machine has three rolls, all driven by a single motor that distributes power through timing belts. The speed of the motor is controlled by a frequency inverter.
In this particular roll mill, the distance between the rolls is regulated by a hydraulic system that can be controlled manually, even while the machine is still running. The same hydraulic system also controls the side skirts, scrapers, and flaking rolls.

Soaptec hydraulic three roll mills are equipped with a conveyor, located underneath the rolls, to collect the discarded soap.

Pressurised coolant is pumped into each roll through the rotary coupling. The temperature is controlled by modulating valves.

Mechanical roll mills—

Soaptec’s selection of soap finishing line machines also includes mechanical roll mills. Our company produces these machines in five different sizes, each suitable for a different production capacity.

The rolls are again driven by a motor and timing belts. Compared to the hydraulic version, in this model the distance between the rolls is adjusted by a mechanical system consisting of eccentric flanges driven by a set of worm wheels.

The temperature of each roll can be managed independently by controlling the passage of pressurised coolant through the rotary coupling.