Rotor Fine Granulator RFG 250D, RFG250DL, RFG250DDL

Granulating up to 4,500 kg/h

The rotor fine granulators of the RFG250 series have throughputs up to 1,500 kg/hr (type: D), 3,000 kg/hr (type DL), or 4,500 kg/hr (type DDL) respectively. With these three models, Alexanderwerk offers a staged range of powerful machines for granulation and size reduction of dry or slightly moist materials.

Granulation by means of rotor fine granulators is mechanical crushing of the material to produce granules of a defined particle size. Typically, rotor fine granulation does not produce any oversize (i.?e. granules the size of which exceed the upper admissible limit). At the same time, this type of size reduction minimizes the fines content in the finished product. Rotor fine granulation is a very gentle process.

Design

- patented diagonal (D) design for increased throughput (as compared to the conventional design of similar size)

- feed hopper for manual filling (type D)

- customized inlet and discharge chutes (types DL and DDL)

- rugged working housing to accommodate tools

- hinged front door for easy access (optionally hinged on right or left hand side)

- revolving screen to accommodate the screen mesh or perforated plate

- reproducible working gap adjustment, adjustable from the outside via an eccentric guide

- rotor with replaceable bars (types DL and DDL)

- cantilever rotor bearing (type D)

- two-sided rotor bearing (types DL and DDL)

- purged seals

- gear motor flanged direct on the working housing

- optional: motor console to mount the motor

- optional: cover for gear motor

- optional: pharmaceutical design

- optional: gas-tight design

- optional: explosion-proof design acc. to ATEX

- optional: mobile trolley

- optional: control console (including or excluding speed adjustment)

- optional: WIP design (Wash In Place)

Applications

Rotor fine granulators manufactured by Alexanderwerk have been successfully used for years in the chemical and natural resources industries in the production materials such as:

- Battery substance

- Animal feeds

- Pigments

Technical Data 250 D

Screen size -  0.5–10 mm

Rotor diameter -  250 mm

Working length -  300 mm

Material -   1.4571

Weight including drive -   approx. 250 kg

Throughput -   through 1,500 kg/hr

Motor power -   through 3.0 kW

Technical Data 250 DL

Screen size -  0,5–10 mm

Rotor diameter - 250 mm

Working length - 600 mm

Material - 1.4571

Weight including drive -  approx. 370 kg

Throughput -   through 3,000 kg/hr

Motor power -   through 5.5 kW

Technical Data 250 Data DDL

Screen size - 0,5–10 mm

Rotor diameter -  250 mm

Working length -  900 mm

Material -   1.4571

Weight including drive -   approx. 450 kg

Throughput -   through 4,500 kg/hr

Motor power -    through 7.5 kW