VK450 Debarker

Valonkone Debarker VK450
Debarking diameter (mm) 80 - 480
Min. log length (m) 2.2
Weight (kg) 13,500
Motor: rotor (kW) 55
Motor: feed works (kW) 3x11

Refurbished / workshop tested Valonkone debarking machine:
The renovation process essentially comprises.
- repairing the sheet metal, replacing any cut-outs
- Check rotor bearings, check blade axles and partially repair them.
- Order bearings and wear parts (cardan shafts).
- Repair the tables and add new plates to the edge strips, partly new conveyor chains.
- New belts
- Check and repair the gear motors.
- New switch cabinet
- partly sandblasting or derusting and new primer top coating

The debarker model VK450 was the first of the “new generation” VK debarker models followed by models VK600 and VK800.
It quickly became the most sought-after small log debarker on the market.
This proven technology still serves hundreds of small log sawmills around the world.
The long-lasting popularity of the VK450 debarker is based on its reliability and ease of use,
which guarantees high-quality debarking results with minimum operating cost.

Fixed debarking rotor – centering of logs with infeed conveyor
Fully automatic debarker – no operator needed
Rotor size Ø48 cm – always with six debarker tool arms
Hydraulic pressure system for tool arms
Feedroll size Ø58 cm
Standard model comes with six feedrolls – eight feedroll version available for short logs (SL-version)
Hydraulic pressure system for feedrolls
VK infeed conveyor always as standard

Simple construction of both the rotor and machine frame allowing for easy maintenance
Strong tool arms are made of forged steel – replaceable carbide tool tips
Different tool tip versions available ensuring optimal debarking quality in varying conditions
Feedrolls with replaceable inserts (FibreMax) for easy maintenance – different insert types available ensuring grip in varying conditions
Simple hydraulic system of feedrolls facilitates maintenance and guarantees steady production
Centering VK infeed conveyor guides logs smoothly between feedrolls for minimal fiber loss

VK450 Infeed Conveyor VK450
Log diameter 60 - 600 mm
Length of infeed conveyor 3484 mm
Height of infeed line 985 mm
Weight 3100 kg
Drive 11 kW

Robust and simple design
Hydraulic pressure system for conveyor through and pressure roll/flap
Pre-opening function for pressure roll/flap
Robust V-flight chain to push log forward into debarker

Accurate log centering both vertically and horizontally (X-Y centering) prevents log-end damage
Improved feeding of small, curved, and low-grade logs for optimal debarking quality with minimal fiber loss
Calms down log before entering debarker when feeding high-speed and/or without log-gap
Simple operating prin