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).

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.
Description

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