Tech Update Debarkers
By Tony Kryzanowski
The Nicholson A8 debarker is recognized within the industry as one of the most technically advanced high speed ring debarkers available. Operating in both single ring and tandem ring formats, the A8 offers exceptional debarking performance at high speeds under the most demanding conditions.
The Nicholson A6 sliding ring debarker provides optimum debarking quality at medium feedspeeds. This rugged, low maintenance machine protects valuable wood fibre and provides a quick return on investment through optimum fibre savings. www.nmwa.com
USNR’s design enhancements to the widely popular Cambio debarker have dramatically improved its performance. USNR also makes two other models: the MV debarker, a modular, high performance machine derived from the original Cambio technology; and the HS-Series high-speed debarker, designed to meet the needs of high production mills. Both the MV and HS series debarkers offer advantages in throughput and performance over the Cambio, while the Cambio remains a popular and economical choice for many operations. USNR offers new and rebuilt rotors for Cambio-style debarkers that can accommodate a variety of tool tensioning systems including spider, hydraulic, and air-bag tensioning. All are available on new USNR debarkers or as upgrade kits for Cambio-style debarkers made by other manufacturers. USNR also manufactures high quality replacement parts for all of its products. www.usnr.com
It utilizes innovations such as a patented floating upper flail, adjustable feed and flail speeds, and hydrostatic flail drive. The 4800-E can produce 40 to 60 US tons per hour with a bark content of less than one per cent. Capable of simultaneously processing logs from 2” to 23” diameter, this machine increases productivity while reducing bark content, product handling time and fibre loss.
With a proven track record, this third generation design outperforms its competition by accepting a wider variety of wood sizes and shapes, requires less fuel per hour, less working space, operates with lower chain costs, and increases fibre yields by as much as 25 per cent per acre, says the company. www.petersoncorp.com
Acrowood DEAL PocketRotaries are available with either a mechanical electric side discharge gate or a hydraulic arrangement. The mechanical approach uses an over-centre arm design to hold the gate closed during the debarking process. The debarker design includes curved upper and lower finger plates, which enhance stem rotation in heavily loaded machines. Tip profiles have been updated, improving bark bruising by each abrader block. The new tip profiles increase debarker capacity and extend abrader life, reducing maintenance requirements and frequency. www.acrowood.com
In addition to its full line of material handling systems from transfers to screening, Price LogPro also offers optimized merchandising systems and rotary log cranes. www.pricelogpro.com
The 640 comes with a 25’ trough-type infeed conveyor with track type chain and hydraulic drive, as well as a 25’ trough-type outfeed conveyor with WD-110 chain, hydraulic drive and one set of manually operated three-arm kickers. Options include additional three-arm manual kickers, four-arm manual with dual cylinders, or additional four-arm manual kickers. The front yoke can be set at 10 degrees or 16 degrees.
It has a hydraulic shoe for bark removal depth, the hydraulic top wheel and backwheel are adjustable to the log diameter, the hydraulic spiral can be controlled for debarker speed, and it comes equipped with a table lock assembly. www.morbark.com
Brunette Industries can provide a Kodiak debarker in a size and configuration to suit any application: 17”, 22”, 27”, 32”, 36”, single or dual rotor, optional self-centring infeed conveyor, optional butt reducing rotor, and OSB. www.brunetteindustries.com
With the two debarking rings being closer together, the TimberFox has the advantage of processing logs as small as 6’ in length. And this configuration can be installed in the same parameters as a conventional debarker with guide rolls. The mechanical performance is a key factor of this success. The new electric drive feed roll technology (two-year warranty), an improved extra heavy duty link arm, a better tensioning system, an improved rotor, and an air bag concept make this debarker an industry leader, says the company. www.dkspec.com
Adding to the company’s line, a new yard cleaning model was recently introduced specifically designed to remove bark and separate rocks and dirt. www.savico.com