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Bruks drum chippers with vertical drop-feeds are the optimum solution for chipping short logs. They are also used as re-chippers, Bruks Klöckner re-chipper, to reduce oversized chips after a screening process.
The wood chips can be used for high-quality applications in pulp mills as well as by the veneer industry, particle board producers and as microchips for direct drying in pellet mills. They can process the most difficult-to-handle, contaminated cheap wood and produce a quality end product that can be used for energy-generation.
Drop-fed drum chippers are available for small residue processing units up to large-scale units producing wood chips at a rate of between 10 to 1,000m3 of chips per hour, with drive units from 22 to 500kW.
Standard chip length is adjustable between 20 and 35mm and other chip lengths are accommodated with special designs. Their size is determined by the number of chipping knives, the screen geometry as well as the chipping speed. Controlling these elements ensures the production of uniform chips.
The chips are discharged from the base of the machine at an upward angle, depending on chipper type. To eliminate oversized chips, the discharge opening is fitted with a screen.
Around the chipper knife, all parts are easily accessible and exchangeable, cutting downtime to a minimum. Knife length is adjusted prior to fitting, eliminating the need for knife adjustments in the chipper.
Some chippers are fitted with a swing-away anvil holder and bolted anvil. The anvil holder has two mounting points: one pivoting and one with a shear bolt that breaks if metal has accidentally been fed into the machine. This causes the anvil holder to swing down and prevent any serious damage to the rotor, anvil and chipper frame.
Both the high-quality steel chipping and counter-knives can be reground several times for cost-efficient operations.
| Type | Infeed width
[mm] |
Rotor diameter
[mm] |
Motor power
[kW] |
|---|---|---|---|
| DG 200 | 400, 600 | 450 | 22 – 55 |
| DG 300 | 600, 800 | 580 | 37 – 132 |
| DG 300 | 540 | 600 | 37 – 75 |
| DG 365 | 560, 825 | 800 | 55 – 2×132 |
| DG 400 | 600, 800, 1.000 | 700 | 55 – 160 |
| DG 500 | 1.000,1.200 | 1.000 | 110 – 250 |
| DG 540 | 680 | 1.160 | 90 – 250 |
| DG 600 | 1.200, 1.600 | 1.300 | 132 – 2×250 |
| DG 650 | 870 | 1.500 | 160 – 450 |
Angerja tee 42-3, 76911 Hüüru
Saue vald, Harju maakond Estonia
+372 621 1911
info@mtg.ee
