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Log Max 4000T

CABEZALES

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El cabezal Log Max 4000T, nuestro último cabezal para labores de clareo tiene una impresionante fuerza de tracción y alta velocidad de alimentación.

Este cabezal tiene una construcción de bastidor completamente nueva donde la caja de la sierra se ha desplazado hacia la parte trasera y hacia el exterior, la parte más alta del bastidor se adelanta permitiendo reducir la fricción y la obstrucción en la rueda de medición.

El nuevo diseño hidráulico mejora en gran medida la potencia y la velocidad de alimentación, por lo que este cabezal de cosecha de 833 kg * es la mejor opción para el raleo y los cortes finales más livianos.

Este potente cabezal de para uso en madera delgada, viene equipado con las unidades de sierra True-Cut Log Max 218 y 318 de primera generación con una capacidad de corte de hasta 58 cm.

Todas estas características combinadas con el sistema patentado de control de cuchillas Log Max, que minimiza la fricción de la alimentación, proporciona una excelente cobertura del fuste y una mayor calidad de la troza obtenida.

Harvesting key figures
  • Gama más productiva : 15 to 35 cm
  • Diámetro máximo de corte : 58 cm
  • Diámetro de desrame mínimo : 1,2 cm
carriers13-18 toneladas carriers13-20 toneladas carriers130-160 kNm

DIMENSIONS & WEIGHT

  • Max width arms open 1185 mm
  • Min width with arms closed 1035 mm
  • Height to felling link 1426 mm
  • Standard configuration (1) 777 kg

1) Incl: V-Steel rollers, damped protection plate
+56 kg with AV12S rotator = 833kg

 

FELLING/CUTTING – SAW TYPE

Hydraulically driven chain saw with pressure controlled feed force.
Chain oil tank in frame with 4 liters capacity.

  • Saw type Saw 218 / 318
  • Saw motor 19 cc
  • Saw chain 0.404 pitch
  • Bar length, 60/67 cm
  • Maximum cut capacity std/opt 49/58 cm

Optional saw:

  • Saw type Saw 218 True-Cut / 318 True-Cut
  • Saw motor 19 cc
  • Saw chain 0.404 pitch
  • Bar length, std/opt 60/67 cm
  • Maximum cut capacity, std/opt 49/58 cm

FEEDING

Two hydraulically driven rollers mounted directly on radial piston motors, 398 cc / 24.3 cu.in.

  • Feed roller diameter, V-Steel 350 mm
  • Feed roller diameter, V-Steel Aggressive 350 mm
  • Calculated feed force (1) 398cc 20,3 kN
  • Calculated feed speed (2) 5,0 m/sec
  • Maximum roller opening 460 mm
  • Minimum roller opening 12mm

1) calculated at 250 bar pressure

2) calculated at 210 l/min flow

 

DELIMBING

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

  • Max delimbing knife opening 517 mm
  • Max full coverage delimbimg diameter (1) 350 mm
  • Min full coverage delimbing diameter 12 mm

1) Note includes bottom knife

 

HYDRAULICS

  • Maximum pressure 280 bar
  • Maximum flow 240 l/min

Min. requirements for acceptable performance :

  • Flow 143 l/min

CONTROL SYSTEM

Log Mate 500 with diameter and length measuring: Full system diagnosis, value bucking, StanForD 2010, multi-stemming report, powerful production reporting…

 

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…)
Read more »

 

ROTATOR

  • Indexator AV12S with 360˚ rotation
  • Indexator H132 with 360˚ rotation

FEED ROLLERS

v-steel rollers  

V-Steel

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.

OPTIONAL CHAINSAW

truecut

An impressive new saw unit – the Log Max True-Cut

The Log Max 4000T feature the first generation 318 True-Cut and 218 True-Cut, both saws have a 19cc motor, the 318 has automatic chain tensioning the 218 has manual tensioning.

The key component of the True-Cut system is the intelligent saw motor with integrated valving solutions for saw motor speed and saw bar control. By continuously sensing the motor speed and adjusting the saw bar feed rate accordingly, the True-Cut maintains an almost constant chain speed of 40 m/s throughout the cutting cycle. This yields an impressive cutting performance – the True-Cut is up to 35 % faster than conventional saw units! By locating the valve for motor speed control inside the motor it is able to react instantly to changes in motor speed and practically eliminate any over-revving that is seen in a convention- al saw unit. Not only does this reduce the stress on the motor but it also provides a safer work environment by reducing the risk of chain shots. The True-Cut saw units also features a longer stroke cylinder and a higher resolution cutting con- trol sensor. These additions provide for a more precise control of the saw bar resulting in maxi- mized cutting performance and color marking precision. The True-Cut is optimized at the factory and should not need any further setting changes in the field.

MULTI-STEMMING

Accumulation kit

This allows the head to be used as a combination head – both as a conventional harvester as well as a multi-stemming head for thinning small wood or in late brush cuttings.

 The Log Max Accumulation Kit can be run with Log Mate 500, 402, Motomit, CabsWin, Dasa 380, Ponsse Opti, Timbermatic and Komatsu Maxi.

multi-stemming

FLOATING TOP KNIFE

Active Friction Control

The new generation floating top knife featuring Active Friction Control actively controls and adjusts the amount of friction between the log and the harvesting head’s frame. There is no need to go out and change the settings by adjusting the unit, everything is now set automatically. Low friction is desired as it leads to lower fuel consumption and heat generation. There is the exception of when delimbing heavily branched trees with small diameter limbs a higher friction minimizes the risk of simply bending them flat.

The harvester’s computer is the brain of the Active Friction Control and based on your settings, the Log Max head behaves optimally depending on tree species and diameter. For example, a thinning of pine and birch can behave quite differently based on tree species.

active friction control

EXTRA EQUIPMENTS

  • Field repair kit
  • Stump treatment
  • Color Marking
  • Snow cover
  • Auto Chain tensioner (318)
  • Fixed protection plate
  • Rotator control
  • Rod cover
  • Find end sensor

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