A Short Description of  the DORNOW Roller Peeling Machines

of the R-OW Production Series

usable in

the Potato and Vegetable Processing Industries

as well as in the Fruit and Juice Industry

1.         The machines are available with inner spaces, i.e. diameters of 500-, 600-, 900-, 1100, 1300, 1500 and up to 2500-mm = diameters of the built-in augers (screw conveyors). The length of the peeling rollers can be 3 or 4 m, with the smaller types 2 m, too. The diameter of the peeling rollers is approx. 150 mm (DORNOW supplies roller peeling machines with a diameter of the peeling rollers of approx. 100 mm)

2.         The construction of the machines of the R-OW production series offers a broad range of possibilities to optimise the desired peeling effect; this goes, too, for tubers and root vegetables with a totally different skin structure: potatoes, celery roots, kohlrabi, sorted-out waste potatoes, fodder potatoes, new potatoes, cooked beetroot, carrots, onions, cassava roots (manioc), deep-frozen oranges and pineapple as well as many other root vegetables and tubers.  

3.         The rollers (roller peelers) were constructed in such a way that both an aggressive peeling (when using bad or even scurfy raw material) and a "gentle" skinning (e.g. of new potatoes or cooked beetroot) is practicable. - The granulation of the coating on the rollers has to be accordingly selected. 

4.         The treads (sections) on the surface of the rollers provide - due to their three-dimensional functioning - for a steady and constant whirling of the tubers and a largely smooth peeling. - It was our intention to arrange the rollers in a stationary way which has many advantages. 

5.         Most of the products to be peeled allow peeling without water/waste water. This means, as a rule, considerable savings in costs. - The peeling pulp produced, for example, when peeling potatoes, is collected at a central point in a chute and can be moved on by means of e.g. a pump. For non-floatable "dry" waste a screw conveyor (auger) or a conveyor belt is mounted beneath the machine. 

6.         The high performance capacities are achieved, accordingly, in one machine of a piece (it is not necessary to connect two or three smaller machines in a stepped arrangement). Thus, one gets less rotating parts and less spare parts are needed! 

7.         The axles of the peeling rollers of the DORNOW roller peeling machines of the R-OW production series have a large diameter. This preserves the bearings and guarantees a low-noise service. The bearings have a double protection against humidity and dirt and are outside the wet zone. They are, moreover, treated against oxidation. 

8.         The DORNOW roller peeling machines of the R-OW series have a very sturdy construction. They are predestinated for a 24-hours service. The low-noise operation of the machines is even guaranteed with fast rotating peeling rollers. The machines are extremely robust and have a very long service life! 

9.         No discontinuous system! The goods to be peeled are peeled in a continuous process! 

10.       Quick mounting and removing of peeling rollers by means of quick exchange facility for rollers. This is true for the models of the R-OW-A series. 

11.       The waste rate can be determined by the operator himself due to the fact that all processes (speeds of the peeling rollers and the screw conveyor = peeling time) allow stepless control! 

12.       Due to the possible micro fine grain peeling the potatoes can leave the machine so smooth as though peeled by steam peeling. 

13.       DORNOW roller peeling machines are also used for re-peeling steam-peeled tubers and root vegetables. 

14.       Furthermore, the machines are used for the intentional downpeeling of (cheap) medium-sized potatoes to (more expensive) smaller potato sizes. 

15.       The dry-peeled fruits have small particles on them. If you wish to remove them, we can offer you various possibilities.

Pictures: On the web: dornow.de, "Product information", section A. - peeling machines.
 

It was DORNOW who built the first roller peeling machines in Europe.

 More than 25 years of experience in this field are at your service.

This paper contains non-committal notes. We do not lay claim to completeness. Alterations reserved. 
Our order confirmation, accepted by our customers, is in effect upon delivery. The presentation of a new edition of this treatise will substitute for any previous versions. 
Copyright by DORNOW food technology GmbH, D-40549 Düsseldorf

DORNOW on the Web:     www.dornow.de 

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Dornow food technology GmbH, Willstätterstr. 12, D-40549 Düsseldorf - Germany, USt-Id.-Nr. DE119264470
Tel. ++49-211-527060, Mobile ++49-172-2614932, Fax ++49-211-596883, email office@dornow.de, Internet: www.dornow.de, 
Commerzbank AG, Konto-No. 1452333, BLZ 300 400 00, Managing Director Karl-Dietrich Dornow, Amtsgericht Düsseldorf, HRB 22597