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 open, mm1 420 (56 in)
Width – head closed, mm1 200 (47 in)
Height to top knife, mm1 300 (51 in)
Height with rotator and link, mm1 820 (72 in)
Weight with rotator and link, kg1 000 (2 205 lbs)
Max. felling / cutting diameter, mm 650 (25,6 in)
Saw bar, mm 750 (29,5 in)
Saw unit SuperCut 100
Saw motor Parker F11-19 / Bucher 20/25
Saw chain tensioning Hydraulic
Chain oil tank volume, l 8 (2,1 US gal)
Max pressure, bar280 (4 060 psi)
Flow required for optimal production, l/min240 (63 US gal/min)
Valve blockPurpose built hydraulic manifold
Hydraulic motors – feeding arms, cm³400/500
Hydraulic motors – chassis, cm³250/315
Number of hydraulic motors, pcs4
Feeding speed, m/s (300 l/min)6,0/4,7 (19,7/15,4 ft/s)
Max opening – feeding wheels, mm630 (24,8 in)
Max opening – upper knives, mm680 (26,8 in)
Max opening – rear knives, mm
Delimbing diameter tip to tip, mm450 (17,7 in)
Number of static knives, pcs1
Number of movables knives, pcs3
Max tilt angle, º140
Options:Indexator AV12-17/H122-182, Black Bruin BBR 15-16
Wheeled base, t14-18 (31 000 – 39 700 lbs)
Tracked base, t16-20 (35 000 – 44 000 lbs)

Contact your local dealer for more information about options.