Mini Presses Range

The Rosedowns Mini press range comprises a number of smaller presses designed for pilot plant or small scale commercial production. 

Typically Mini presses will be used in specialist applications, where small scale extraction of high value products is required. They may be used either as a single stage high pressure press, or as part of a mini mill where it would undertake a double-pressing duty.

Our  Mini presses are also ideal for small-scale pilot plant or research work. They are designed for ease of set up, use and maintenance. Their operating characteristics are similar to those of  full sized production presses, and therefore enable good predictions of full scale applications to be made.

Mini presses are designed for the cold pressing of most oil bearing seeds without pretreatment *.

Their small size and tight tolerances means that they are very efficient at rupturing the structures of oil-bearing materials and extracting the oil. The Mini presses may also be used to process cooked and prepared feed materials. In which case the pre-treatment will enable greater oil yields than is possible with the press alone.

The mini press range has been designed from the outset to give excellent performance and to be easy to maintain and operate. For specialist applications or the smallest mills they are the ideal press.

* Some feeds with large particle sizes may require pre-breaking before feeding to a Mini press



Mini Press Specifications

	Dimensions	Electric	Diesel
Mini 40 Nominal Throughput Pre Press -- Kg/Hr Full Press 40Kg/Hr Oil Yield Cold Press 75-85% Prepared seed 80-90%	Length Width Height Nett Weight Installed Power	700mm 550mm 1450mm 200Kg 4KW	860mm 960mm 700mm 500 Kg ~4KW
Mini 100 Nominal Throughput Pre Press 150Kg/Hr Full Press 100Kg/Hr Oil Yield Cold Press 75-85% Prepared seed  80-90%	Length Width Height Nett Weight Installed Power	1500mm 375mm 500mm 500Kg 7.5KW
Mini 200 Nominal Throughput Pre Press 300Kg/Hr Full Press 200Kg/Hr Oil Yield Cold Press 75-85% Prepared seed 80-90%	Length Width Height Nett Weight Installed Power	2220mm 680mm 840mm 900Kg 15KW
Mini 500 Nominal Throughput Pre Press 500Kg/Hr Full Press 250-300Kg/Hr Oil Yield Cold Press 60-70% Prepared seed 75-80%	Length Width Height Nett Weight Installed Power	2300mm 700mm 850mm 900Kg 22KW

Mini Press Design Features

Fully Welded Frame

Rosedowns Mini presses have a fully welded steel frame that provides maximum strength and allows for simple installation of the press.

The motor is mounted on the press, either on the base plate behind the gearbox or on the top of the gearbox. The feed mechanism and available space will generally determine the most suitable arrangement.

Worm Gearbox

The Gearbox is of the worm box type, this is a high efficiency unit and it is fitted, as standard, with large bearings that will withstand the loads generated by the pressing operation. The gearbox flanges directly to the Frame, and the main  press shaft fits directly into the hollow-driving sleeve of the gearbox. This arrangement eliminates the need for specialist alignment, making the press very simple to maintain.

Split Cage

The cage is split on the centre line with the two halves bolted together. This design allows for quick and easy access to the press internals for cleaning or inspection, without any specialist lifting equipment. The cage is normally lined with standard lining bars, these are simple and easy to maintain. Alternatively our unique half rings may be used, these offer much greater flexibility to adjust the drainage gaps of the press, while retaining all the advantages of the access and maintenance of a split cage.

Worm Assembly

The worm assembly generally features two compression zones to maximise the efficiency of oil extraction without generating the high pressures that absorb power and cause excessive wear of parts. The worm assembly is made up of loose sections, built up on a keyed shaft. The parts slide on to the shaft from the discharge end, so that those parts that experience the greatest wear and those most likely to need changing for different seed types are the first to be removed from the shaft. The compression in each zone can be adjusted, to suit the feed material and the required duty, this is achieved using interchangeable pressure pieces that are supplied as standard with each press.