DEMUTH DPF Drum Chippers are extremely simple machines with updated constructive characteristics, which to considerably increase efficiency and durability. The machines were projected after observing and using several equipament in operation.
Considering that drum chippers are equipment initially used in countries of essentially tropical woods, they were properly projected and the experience proved to be machines of very long durability, high versatility and low maintenance.
Applicable for timber chipping, whether round or in waste shape, from saw mills or rolling mills, they transform irregular and difficult to handle material in a high quality, uniform and multiple application product.
In special version, the chippers can also chip copper wire scraps, waste paper, films, carpets, sacks and others
Considering that drum chippers are equipment initially used in countries of essentially tropical woods, they were properly projected and the experience proved to be machines of very long durability, high versatility and low maintenance.
Applicable for timber chipping, whether round or in waste shape, from saw mills or rolling mills, they transform irregular and difficult to handle material in a high quality, uniform and multiple application product.
In special version, the chippers can also chip copper wire scraps, waste paper, films, carpets, sacks and others
1 - Rotor Hood
2 - Second Counter-knife
3 - Rotor
4 - Knife Fixing Clamp
5 - Knife
6 - Rotor Fixing Rings Set
7 - Rollers Hood
8 - Transporting Rollers
9 - Roller Hood Articulation
10 - Screen
11 - First Counter-Knife System
12 - Lower Comb
13 - Accelerating Roller
14 - Belt Conveyor Roller
15 - Feeding Belt
16 - Return Roller
Equipment Description
Material is introduced into the machine through the feeding belt (15) up to the toothed roller system (8). These rollers thrust the hardened teeth in the material pressing it against the rotor (3), to force material in-feed. The upper rollers hood pivoting (7) around the shaft (9) keeps processing material between the toothed rollers. Material, when pressed against the rotor, is cut in regular lengths by knives (5), and first counter-knife (11) and then discharged by the incorporated screen (10).
Particles badly chipped (oversized) are re-chipped at the second counter-knife (2).
Changes in the nominal chips length are easily obtained by changing the gear motor feeding system, drum rotation, knife quantity and in-feed speed.
Feeding rollers with interchangeable segments manufactured in structural quality steel that guarantee simplicity, longer useful life and changing agility.
Extremely sturdy rotor structure with project that reduces the superficial wearing. Knives fixing is done through overdimensioned clamps and bolts that avoid any knife returning possibility, whichever material type is processed.
Rotor is fixed at the shaft through pressure conical rings.
Useful and re-sharpened on four sides, the first counter-knife is easily removed and changed. No checking position required.
Bi-parted comb with interchangeable counter-knife clamp.
Built-in and strongly fixed to the main frame, assuring more stability during re-chipping process.
Sturd incorporated screen properly manufactured according to each material type, guarantees processing material selection.
Elastic Coupling
Starting base for motors with driving power higher than 150 KW are provided with motor pulley between bearings and elastic coupling to reach efficient power transmission.
Security
Particles badly chipped (oversized) are re-chipped at the second counter-knife (2).
Changes in the nominal chips length are easily obtained by changing the gear motor feeding system, drum rotation, knife quantity and in-feed speed.
Feeding
Feeding rollers with interchangeable segments manufactured in structural quality steel that guarantee simplicity, longer useful life and changing agility.
Rotor
Extremely sturdy rotor structure with project that reduces the superficial wearing. Knives fixing is done through overdimensioned clamps and bolts that avoid any knife returning possibility, whichever material type is processed.
Rotor is fixed at the shaft through pressure conical rings.
First Counter-Knife
Useful and re-sharpened on four sides, the first counter-knife is easily removed and changed. No checking position required.
Bi-parted comb with interchangeable counter-knife clamp.
Second Counter-Knife
Built-in and strongly fixed to the main frame, assuring more stability during re-chipping process.
Screen
Sturd incorporated screen properly manufactured according to each material type, guarantees processing material selection.
Elastic Coupling
Starting base for motors with driving power higher than 150 KW are provided with motor pulley between bearings and elastic coupling to reach efficient power transmission.
Security
Many items guarantee operational security to the equipment:
- mechanical device, with hood bearings, rotor and counter-knifes locking;
- mechanical device, with hood bearings, rotor and counter-knifes locking;
- electrical sensors to avoid involuntary motor starting;
- hydraulic valves for immediately blocking in case of piping damage.
Technical Specification
| Type DPF | Output (TON/h)* |
Needed Power HP** |
Chipping Section HxW(mm) |
Chip Length mm*** |
Knives |
Rotor Diameter mm |
Weight kg |
| 80/200/2RT | 0,5 - 1 | 10 | 80 x 200 | 6 - 30 | 2 - 4 | 300 | 700 |
| 150/400/2RT | 3 - 7 | 40 - 75 | 150 x 400 | 6 - 70 | 2 - 4 | 500 | 2.150 |
| 150/600/2RT | 3 - 10 | 40 - 100 | 150 x 600 | 6 - 70 | 2 - 4 | 500 | 2.500 |
| 190/400/3RT | 4 - 13 | 50 - 125 | 190 x 400 | 6 - 70 | 2 - 4 | 600 | 4.200 |
| 190/600/3RT | 4 - 18 | 50 - 175 | 190 x 600 | 6 - 70 | 2 - 4 | 600 | 5.300 |
| 230/600/3RT | 6 - 22 | 60 - 200 | 230 x 600 | 8 - 100 | 2 - 4 | 700 | 6.300 |
| 230/800/3RT | 6 - 27 | 60 - 250 | 230 x 800 | 8 - 100 | 2 - 4 | 700 | 7.200 |
| 290/600/5RT | 13 - 35 | 125 - 350 | 290 x 600 | 8 - 120 | 2 - 3 - 4 | 800 | 8.700 |
| 290/800/5RT | 13 - 42 | 125 - 400 | 290 x 800 | 8 - 120 | 2 - 3 - 4 | 800 | 9.000 |
| 290/1000/5RT | 13 - 56 | 125 - 550 | 290 x 1000 | 8 - 120 | 2 - 3 - 4 | 800 | 10.300 |
| 340/600/5RT | 18 - 40 | 160 - 400 | 340 x 600 | 8 - 120 | 2 - 3 - 4 | 1.000 | 11.100 |
| 340/800/5RT | 18 - 51 | 160 - 500 | 340 x 800 | 8 - 120 | 2 - 3 - 4 | 1.000 | 11.900 |
| 340/1000/5RT | 18 - 68 | 160 - 700 | 340 x 1000 | 8 - 120 | 2 - 3 - 4 | 1.000 | 13.100 |
| 400/600/7RT | 25 - 49 | 225 - 500 | 400 x 600 | 10 - 200 | 2 - 3 - 4 | 1.200 | 14.300 |
| 400/800/7RT | 25 - 60 | 225 - 550 | 400 x 800 | 10 - 200 | 2 - 3 - 4 | 1.200 | 16.100 |
| 400/1000/7RT | 25 - 82 | 225 - 800 | 400 x 1000 | 10 - 200 | 2 - 3 - 4 | 1.200 | 18.700 |
| 400/1200/7RT | 25 - 99 | 225 - 1000 | 400 x 1200 | 10 - 200 | 2 - 3 - 4 | 1.200 | 20.900 |
| 500/600/9RT | 35 - 63 | 400 - 600 | 500 x 600 | 10 - 200 | 2 - 3 - 4 - 6 | 1.500 | 19.300 |
| 500/800/9RT | 35 - 77 | 400 - 750 | 500 x 800 | 10 - 200 | 2 - 3 - 4 - 6 | 1.500 | 21.800 |
| 500/1000/9RT | 35 - 105 | 400 - 1000 | 500 x 1000 | 10 - 200 | 2 - 3 - 4 - 6 | 1.500 | 25.700 |
| 500/1200/9RT | 35 - 127 | 400 - 1200 | 500 x 1200 | 10 - 200 | 2 - 3 - 4 - 6 | 1.500 | 28.800 |
| 600/800/11RT | 42 - 94 | 450 - 900 | 600 x 800 | 10 - 200 | 4 - 6 | 1.750 | 33.600 |
| 600/1000/11RT | 42 - 128 | 450 - 1200 | 600 x 1000 | 10 - 200 | 4 - 6 | 1.750 | 37.700 |
| 600/1200/11RT | 42 - 155 | 450 - 1500 | 600 x 1200 | 10 - 200 | 4 - 6 | 1.750 | 40.400 |
| 700/800/13RT | 50 - 112 | 600 - 1100 | 700 x 800 | 10 - 200 | 4 - 6 | 2.200 | 39.200 |
| 700/1000/13RT | 50 - 150 | 600 - 1500 | 700 x 1000 | 10 - 200 | 4 - 6 | 2.200 | 44.800 |
| 700/1200/13RT | 50 - 182 | 600 - 1800 | 700 x 1200 | 10 - 200 | 4 - 6 | 2.200 | 49.100 |
| 900/1000/19RT | 80 - 199 | 1000 - 2000 | 900 x 1000 | 10 - 200 | 4 - 6 - 8 | 2.600 | 58.700 |
| 900/1200/19RT | 80 - 240 | 1000 - 2400 | 900 x 1200 | 10 - 200 | 4 - 6 - 8 | 2.600 | 72.900 |
| 900/1400/19RT | 80 - 270 | 1000 - 2700 | 900 x 1400 | 10 - 200 | 4 - 6 - 8 | 2.600 | 76.400 |
* Production based on wood with 40% misture content, humid weight of 800 kg/m3 and 25/30mm - long chips.
** Installed power is directly related to the desired production.
*** Chip length may change according to necessity and is related to the machine performance