QS450 Processor

QS450 Processor
  • Southstar QS450 Harvesting Head
  • Southstar QS450 Harvesting Head


4 x 4 equals increased traction, torque, and delimbing force. Ideal for harvesting, processing, thinning, and debarking operations.

The QUADSTAR harvester processor range is heavy duty and built to last.

The QS450 is designed for small sized wood with an optimum operating size of 14-18” in diameter. This multi tree processor is packed full of design features that set it apart from the competition.


4X4 extra wide feed rollers for increased surface contact with the log. Large diameter wheels for increased speed.

Side Stepping

Innovative patent pending Side Stepping drive feature allowing for independent control of two stems. This allows the operator to align butts, trim defects out of one stem but not the other and or, process one stem and not the other.

Dual find end

Dual find end sensors to eliminate waste when multi tree processing.

Wide Chassis Structure

Wide Chassis Structure for improved structural strength and increased single and multi-tree processing capacity.

Hose Through

Clean Hose Through design with Taimi swivel or 360 rotation option to better protect hoses.

Taper Lock Collar

Large diameter pins with Taper Lock Collar design for decreased wear and increased life expectancy.


State of the art DGlide bushing material for extended life and durability of pins.

Fabricated Delimb Arms

Fabricated Delimb Arms with replaceable wear resistant alloy cutting edges.

Download Brochure
Metric Imperial
DIMENSIONS & WEIGHT Weight including rotator top and link 1,941 kg 4,279 lb
Height in harvest position including rotator top and link 2,280 mm 89″
Maximum width with arms open 1,731 mm 68″
DRIVE SECTION Motor cc standard (drive arm) 560 cc 560 cc
Motor cc standard (fixed center drive) 400 cc  400 cc
Maximum drive roller opening 815 mm 32″
Minimum drive roller closing diameter 75 mm 3″
Feed speed 5.5-7.6 m/s 18-25 ft/s
DELIMB SECTION Maximum delimb opening 575 mm 22.6″
Minimum delimb closing diameter 75 mm 3″
2 STEM PROCESSING +/- 1″ accuracy 230 mm 9″
3 STEM PROCESSING +/- 1″ accuracy 150 mm 6″
BUTT SAW Saw type Southstar 3/4 Southstar 3/4
Bar size 813 mm 32″
Chain pitch 19.05 mm 3/4″
Chain auto tension
Chain pitch 19.05 mm 3/4″
CONTROL SYSTEM Dasa5 standard with detailed production reports
Optional additions:
– Full optimisation
– Electronic Callipers for electronic calibration
OPTIONAL CONFIGURATIONS – Butt saw chain grease system
– Continuous 360° rotation
– 400° rotation
– Startrax Satellite Communication System
Optional Optional
CARRIER REQUIREMENTS Size 20,000 – 22,000 kg 20-22 t
Maximum pressure 35 Mpa 5,076 Psi
Optimum flow @ pressure 300-320 l/min @ 15 Mpa 79-85 Gl/min @ 2,175 Psi

*The manufacturer reserves the right to amend these specifications at any time without prior notice

QS450 Thumb nail steel feed wheelsQS450 Aggressive steel feed wheelsSatellite Communication System