QS500 Processor

QS500 Processor
  • QS500 Tree Processor Below Angle
  • QS500 Tree Processor Below Angle
  • QS500 Tree Processor Below Angle
  • QS500 Tree Processor Below Angle
  • QS500 Tree Processor Below Angle
  • QS500 Tree Processor Below Angle
  • QS500 Tree Processor Overhead Angle
  • QS500 Tree Harvester 2
  • QS500 Tree Harvester in Canada
  • QS500 Tree Processor Front Angle

QS500 Processor

4×4 equals increased traction, torque, and delimbing force.

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

The QS500 is designed for small to medium sized wood with an optimum operating size of 18-24” in diameter. This original 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.

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 wasteage when multi tree processing.

Parabolic Spring Link

Innovative Parabolic Spring Link drive arm timing link to allow for variation in multi stem diameters or rough single stem profile without loss of traction.

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 descreased 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 2,686 kg 5,921 lb
Height in harvest position including rotator top and link 2,720 mm 107″
Maximum width with arms open 1,731 mm 68″
DRIVE SECTION Motor cc standard (drive arm) 630 cc 630 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 649 mm 25.5″
Minimum delimb closing diameter 75 mm 3″
2 STEM PROCESSING +/- 1″ accuracy 250 mm 9.8″
3 STEM PROCESSING +/- 1″ accuracy 180 mm 7″
BUTT SAW Saw type Southstar 3/4 Southstar 3/4
Bar size 863.6 mm 34″
Chain pitch 19.05 mm 3/4″
Chain auto tension
TOP SAW Bar size 642 mm 25.5″
Chain pitch 10.26 mm .404″
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 20,000-25,000kg 20-25t
Maximum pressure 35 Mpa 5076 Psi
Optimum flow @ pressure 300-320 l/min @ 15 Mpa 79-85 Gl/min @ 2175 Psi

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

QS500 Thumb nail steel feed wheelsQS500 Debarking steel feed wheelsQS500 Aggressive steel feed wheelsSatellite Communication System