Log Max 12000XT

The Log Max 12000XT is the extreme duty head for big tree production, multi-stem processing of smaller softwoods or processing crooked hardwoods.


This is the most rugged Log Max head and is available in harvester or processor configurations. Built using the same design philosophy as the successful smaller Log Max heads, the Log Max 12000 is unsurpassed in durability and performance.


With over 5 t. of delimbing force, this head is able to handle the most severe wood with ease. Large rear cover with hydraulic assist opens for full service access.

High production ¾” pitch bottom saw cuts up to 1,020 mm (40”) with ease. Special Log Max designed knives with compound curves and replaceable cutting edges produce clean delimbed wood at a low operating cost.

Harvesting key figures
  • Most productive range : 23 to 73 cm
  • Maximum cutting diameter : 102 cm
  • Minimum delimbing diameter : 5,5 cm
  • carriers carriers
  • 33-40 tons350-430 kNm
  • cut stump


  • Max width arms open 2335 mm
  • Min width with arms closed 1563 mm
  • Height (with top saw) 2482 mm
  • Standard configuration1 4234 kg
  • 1) Incl: Steel rollers


Hydraulically driven chain saw with pressure controlled feed force.
Chain oil tank in frame with 36 liters capacity.

  • Saw type 411XL
  • Saw motor 60 cc
  • Saw chain 0.404 pitch
  • Bar length, std/opt 102 /114 cm
  • Maximum cut capacity std/opt 89/102 cm

  • Saw type (optional) 418
  • Saw motor 30 cc
  • Saw chain 3/4"-9Z
  • Bar length, std/opt 90/102 cm
  • Maximum cut capacity, std/opt 66/85 cm
  • Saw type (optional) 518
  • Saw motor 30 cc
  • Saw chain 0.404 pitch
  • Bar length, std/opt 90/102 cm
  • Maximum cut capacity, std/opt 66/85 cm

  • Top Saw 19 cc
  • Bar length 75 cm
  • Maximum cut capacity 60 cm


Two hydraulically driven rollers mounted directly on radial piston type motors, 2096 cc

  • Feed roller diameter, Steel 710 mm
  • Calculated feed force1 std 50 kN
  • Calculated feed speed2 5 m/sec
  • Maximum roller opening 915 mm
  • Minimum roller opening 26 mm
  • 1) calculated at 320 bar pressure
  • 2) calculated at 380 l/min flow


Five movable knives with patented positioning to minimize friction losses, which increases the active pulling force.

  • Max delimbing knife opening 995 mm
  • Max full coverage delimbimg diameter1 710 mm
  • Min full coverage delimbing diameter 67 mm
  • 1) Note includes bottom knife


  • Maximum pressure 320 bar
  • Maximum flow 400 l/min
Min. requirements for acceptable performance :
  • Flow 200 l/min


Log Mate 510 with diameter and length measuring: Full system diagnosis, value bucking, StanForD 2010, multi-stemming report, powerful production reporting...
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Interfaces : Log Max heads can be seamlessly installed on any machine running an other control system. These powerful and easy to implement interfaces are available for all major manufacturers. (John Deere, Rottne, Komatsu...)
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  • Rotobec RT 500-1 with 360° rotation
  • Robobec RT 500 without 360° rotation (Harvester)
  • Rotator Pierce (Processor)


v-steel rollers  


By placing the stud bars in angled rows, Log Max has obtained a self cleaning feed roller with very high pulling force both in forward and reverse, without risk of spinning.

v-steel aggr. rollers  

V-Steel Aggressive

The V-steel Aggressive roller has studs that sink deeper in the tree trunk.


  • Filed repair kit
  • Rotator link without swing damper
  • Hose holder
  • Rod cover
  • Find end sensor
  • Built-in rotator valve
  • Rotator – Pierce (Processor)