Lightweight head for midsized harvesters

TH55 is a light, compact and highly productive harvester head designed especially for thinning operations and clear felling of midsized timber. The lightweight TH55 is an excellent choice for midsized harvesters with long out-reach cranes. The three-roller synchronized feed system ensures a powerful and precise feeding in all conditions.



Great results on bent timber

TH55 performs perfectly on bent timber because of its long front knives equipped with parallel rod, its large tilt angle and short frame. 

PRECISE In all conditions

The diameter of the timber is measured from the front knives with two sensors, which guarantees a reliable diameter measurement. The fully hydraulic length-measuring wheel, with a possibility to adjust the pressure, together with a wide range of different length measuring wheel options ensure a precise length measurement in all conditions.

Optimal Delimbing diameter
10-40 cm
Maximum felling-/cutting diameter
65 cm

feeding wheel safeguard

The feeding wheel safety guard is as a standard equipment to protect the harvester head from rocky ground, for example when lowered down. The feeding roller model is optional.

Length Measuring device

The length measuring device is firmly attached to the harvester head frame. Choose the measuring wheel model that suits your needs.

Reaction rod

The reaction rods in the feeder arms centres the woods inside the harvester head and ensures that the stem remains at the bottom of the harvester head even during a possible feeding reversal step.

delimbing knives

Robust delimbing knives are optimized for average stem size and them are lightly delimbing large, branched conifers for example.

rear delimbing knives pin

The sturdy housing structure connects both the fastening pins for the rear and front delimbing knives. The service life of the pins is long. The locking nut on the pin keeps the whole package together.


in a nutshell

tech specs

Width – head open1 420 mm (55.9″)
Width – head closed1 200 mm (47.2″)
Height to top knife1 300 mm (51.2″)
Height with rotator and link1 820 mm (71.7″)
Weight with rotator and link1 000 kg (2200 lbs)
Max. felling/cutting diameter650 mm (25.6″)
Saw bar750 mm (29.5″)
Saw unitSuperCut 100S
Saw motorParker/Bucher
Saw chain tensioning Automatic
Chain oil tank volume 8 l (2.1 US gal)
Max pressure280 bar (4 061 PSI)
Flow required for optimal production160 l/min (42.3 US gal/min)
Valve blockPurpose built hydraulic manifold
Hydraulic motors – feeding arms500/630 cm³
Hydraulic motors – chassis315/400 cm³
Number of hydraulic motors4 pcs
Feeding speed, 300 l/min6,0/4,7 m/s (19.7/15.4 ft/s)
Max opening – feeding wheels630 mm (24.8″)
Max opening – upper knives680 mm (26.8″)
Max opening – rear knives
Delimbing diameter tip to tip450 mm (17.7″)
Number of static knives1 pc
Number of movables knives3 pcs
Max tilt angle140º

Indexator AV12S, H122


Wheeled base14-18 t (30860 – 39680 lbs)
Tracked base16-20 t (35270 – 44090 lbs)

Contact your local dealer for more information about options.