Hammer Mill GDL
The most flexible and versatile Tietjen mill
- Perfect for frequently changing grinding parameters
- Ideal for medium to high throughput
- Quick beater change with beater frame system
Recommended for
Possible for
Our All-Rounder with Manual Screen Change in Idle Mode
The large chamber hammer mill GDL is suitable for use in compound feed production, the ethanol industry, the production of pet food and fish feed as well as for grinding a wide range of other products. Due to the design as a large chamber mill, high throughput rates are achieved. A special feature is the simple and quick screen change during idling due to pull-out screen cages in which the screens are mounted.
Take Advantage of These Benefits
Efficient Grinding, High Capacities and Flexibility
- Optimised impact zone with hardened impact plates on both sides of the inlet
- Universal use from fine to coarse grinding possible
- Large grinding chamber for high capacities
- High energy efficiency due to special rotor design
- Quick screen change allows a selective structure change of the ground material in just a few minutes
- Variable grist spectrum by adjusting the beater circumferential speed (when using a frequency converter), the screen perforation and the beater configuration
Reliable Operation and Long Durability
- Robust welded steel construction for continuous industrial operation (24/7)
- Grinding chamber equipped with wear elements to protect the
housing, easy to change - Durable, optimised rotor design, dynamically balanced, operation in both directions of rotation
- To protect the screens: foreign body catch trap for impurities inside the grinding chamber
High Availability with Low Downtimes
- Quick and easy change of beaters due to beater frame system, beaters can be changed outside the mill
- With a second set of beater frames, the machine is immediately ready for use again
- Rotor with short run-down time < 6 min without brake
- Wide-opening doors allow easy and quick access to the machine interior
- 6-piece screen cage system, can be changed manually quickly and easily depending on requirements or wear pattern (during idling)
High Safety of Personnel and Plant
- Standstill monitoring with door safety device
- Pressure shock resistant and flameproof design (0.4 bar)
- ATEX design according to zone 21 (II 2 D) inside and zone 22 (II 3 D) outside optionally possible
Hardened impact area
Special rotor design
Beater frame system for quick and easy beater change
Screens in screen cages for quick and easy screen change
Pneumatically operated inlet flap (option)
Bearing and grinding chamber temperature monitoring
Technical Data
| Machine types | GDL 12 | GDL 20 | GDL 25 |
| Grinding chamber diameter (mm) | 1200 mm | 1200 mm | 1200 mm |
| Screen width (mm) | 640 mm | 1000 mm | 1250 mm |
| Grinding chamber area (m2 ) | 1.84 m² | 2.88 m² | 3.60 m² |
| Dimensions and weights | |||
| Length x width x height (approx. mm) | 2630 x 1600 x 1600 mm | 3050 x 1600 x 1600 mm | 3300 x 1600 x 1600 mm |
| Weight without motor (approx. kg) | 1950 kg | 2450 kg | 2900 kg |
| Drive | |||
| Motor size (kW) | 160 – 250 kW | 250 – 355 kW | 355 – 450 kW |
| Speed 50 Hz/60 Hz (rpm) | 1500/1800 | 1500/1800 | 1500/1800 |
| Speed with frequency converter 34-60 Hz | 1000 – 1800 | 1000 – 1800 | 1000 – 1800 |
Hammer Mill GDL
Our Customers
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