EF28
A feeding energy wood head
for harvesters, excavators (14-20 tn), and combi machines.

Features

  • Efficient multi-tree handling, cutting and accumulation
  • Non-slipping feeding, delimbing in bunches
  • Quick guillotine cutting, max. 28 cm, wider for bundles
  • Length measuring
  • Reliable hydraulics
  • A simple and cost-effective radio controlled automation system

Suitable for

  • Integrated harvesting
  • Energy wood harvesting
  • First thinning

Designed to meet the most current energy wood harvesting requirements

Multi-tree handling and accumulation

  • High-capacity multi-tree handling grippers
  • Loading grapple -type delimbing blades
  • The feeding rollers open sideways for easier accumulation

Delimbing

  • A very wide opening, 83 cm
  • The open shape of the upper provides perfect operation when delimbing bunches
  • Delimbing diameter 4-42 cm

Feeding

  • Smooth, non-slipping feeding
  • Low pressure requirements for feeding
  • Length measuring has been integrated with the feeding
  • Feeding diameter 2-39 cm
  • Controlled lifting of the tree

Cutting

  • New, quick guillotine cutting.
  • Max. cutting diameter: 28 cm, for bundles considerably wider
  • Full cutting power is maintained throughout the entire movement.
  • The cutting surface is clean and even.
  • Stump treatment is available as an option.

Reliability and cost-efficiency

  • A compact and durable structure, made of high strength steel
  • Hydraulics and automation designed for integrated harvesting
  • Economic fuel consumption

New! Naarva automation system for effective control

  • Simple and cost effective automation system including radio control. Wireless connection between the grapple and cabin.
  • Features include: small and clear display, compact and durable grapple module, easy to adjust, wood specific settings for rollers and delimbing blades, length measuring from feeding rollers, delimbing blade pressure reduction during bundle feeding, calculation of stem amount

Technical specifications
Factory code EF28
Weight 700 kg
Height in felling position 116 cm
Grapple opening
83 cm
Delimbing diameter
4-42 cm
Feeding speed
4 m/s
Feeding force
13 kN
Feeding diameter
2-39 cm
Cutting diameter*
force and time **

Max cutting: 28 cm
Cutting force: 240 kN
Cutting time: 0.7 s

Required pressure 240 bar
Required oil flow
170 l/min
Warranty
12 months or 1000 hours
Control system Harvesters own control system or Naarva-automatic with radio control
Voltage
12V or 24V

* The max. cutting diameter is approx. 30% lower for hard wood (such as oak and beech).
** With 200 l/min oil flow
All provided values are approximations.The manufacturer reserves the right to make changes in the products. 04/2011

Accessories

  • Evolvent spike rollers or rib‐type spike rollers
  • Radio control with various options
  • Extension boom for excavators
  • Rotators
  • Suitable link for the rotator
  • Spare part packages
    • Basic wear and tear part package including hose kit and sensors etc.
    • Wide package including basic package and guillotine wear part kit, seal kits and valves

Technical information on the accessories

Back