Double-roller Mill – WS - Orbit Technologies

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Double-roller Mill – WS

Overview

With the double-roller mill, all brittle materials, such as, for example, ores, clinker, limestone, gypsum, aluminium oxide, glass, … can be reduced in size up to a Mohs’ hardness of approx. 8.5 with a reduction ratio from 1:2 to 1:5. Crushing is done between two counter-rotating rollers mainly through compressive and shear stress. The smooth crushing rollers are arranged on opposite sides, one of them being fixed to the housing and the other arranged flexibly. The flexibly appointed crushing roller can be moved via a spindle in order to thus set the opening between the two rollers infinitely variably.

To protect the crusher from minor foreign bodies, the flexible roller is supported by spring packages that can be adjusted to meet requirements in the prestressing force. The two crushing rollers are driven by a V-belt drive.

The double-roller mills are executed by us in two versions: In the laboratory version, the machine is equipped with a tamper-proof feeding funnel, the base frame with integrated control system and the safety monitored collecting box.

For installation of the double-roller mills in plants, there is also a version available without these additional attachments, so that simple integration is possible.

In the laboratory version, the complete upper section of the housing can be swung open once the quick release has been actuated, so that the crushing chamber can be subjected to rapid inspection/cleaning in order to prevent any cross-contamination between the samples. The crushing rollers are available in various materials (cast steel, tungsten carbide and aluminium oxide).

Specifications

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Double-roller mill		WS 250 x 150	WS 400 x 200	WS 400 x 400	WS 600 x 400	WS 600 x 800
Dimensions (W × H× D)	mm	675 x 500 x 1360	850 x 1100 x 2120	1100 x 1160 x 2300	1300 x 1100 x 3400	1750 x 1100 x 3400
Weight	kg	345	1280	1920	3000	5500
Motor	kw	3	2 x 5,5	2 x 7,5	2 x 15	2 x 22
Roller size (Ø x W)	mm	Ø250 x 150	Ø400 x 200	Ø400 x 400	Ø600 x 400	Ø600 x 800
Gap width, min. – max.	mm	0.2 – 5.0	0.5 - 15	0.5 – 15	0.5 - 15	0.5 – 15
Max. feeding size	mm	12	20	20	50	50
Throughput	kg/h	50 - 2000	75 – 6000	150 - 10000	180 - 10000	360 – 17000
The throughput is dependent on the size of the discharge opening, the bulk weight and the size reduction behaviour of the crushed material. Fineness is decisively determined by the discharge opening set. Subject to technical changes.

Double-roller mill		WS 250 x 150-L	WS 400 x 200-L
Dimensions (W × H× D)	mm	675 x 1360 x 1360	850 x1500 x 2120
Weight	kg	495	1320
Motor	kw	3	2 x 5.5
Roller size (Ø x W)	mm	Ø250 x 150	Ø400 x 200
Gap width, min. – max.	mm	0.2 – 5.0	0.5 - 15
Max. feeding size	mm	12	20
Throughput	kg/h	50 - 2000	75 – 6000
The throughput is dependent on the size of the discharge opening, the bulk weight and the size reduction behaviour of the crushed material. Fineness is decisively determined by the discharge opening set. Subject to technical changes.